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Term formatting infrastructure for displaying Erlang terms in various BEAM language syntaxes.//!//! This module provides the `TermFormatter` trait and factory function for creating formatters//! that render Erlang terms in the syntax of different BEAM languages (Erlang, Elixir, Gleam, LFE).
use crate::server::FormatterMode;use eetf::{Pid, Reference, Term};
/// Trait for formatting Erlang terms into string representations.////// Implementors of this trait provide language-specific formatting for all Erlang term types./// The methods are designed to handle both simple and complex nested terms recursively.pub(crate) trait TermFormatter: Send + Sync { /// Format any Erlang term. This is the main entry point for formatting. fn format_term(&self, term: &Term) -> String;
/// Format an atom. /// /// Atoms may require quoting depending on their content and the target language. fn format_atom(&self, name: &str) -> String;
/// Format a reference. fn format_reference(&self, reference: &Reference) -> String;
/// Format a binary. /// /// The formatter should detect whether the binary is valid UTF-8 text /// or raw bytes and format accordingly. fn format_binary(&self, bytes: &[u8]) -> String;}
/// Returns a boxed formatter for the given mode.////// This is the factory function for creating formatters. Each mode/// produces a formatter that outputs terms in that language's syntax.pub(crate) fn get_formatter(mode: FormatterMode) -> Box<dyn TermFormatter> { match mode { FormatterMode::Erlang => Box::new(ErlangFormatter), FormatterMode::Elixir => Box::new(ElixirFormatter), FormatterMode::Gleam => Box::new(GleamFormatter), FormatterMode::Lfe => Box::new(LfeFormatter), }}
/// Placeholder Erlang formatter.////// Full implementation will be provided in US-007.struct ErlangFormatter;
impl ErlangFormatter { fn format_term_indent(&self, term: &Term, indent: usize) -> String { match term { Term::Atom(a) => self.format_atom(&a.name), Term::FixInteger(i) => i.value.to_string(), Term::BigInteger(i) => i.value.to_string(), Term::Float(f) => format!("{}", f.value), Term::Binary(b) => self.format_binary(&b.bytes), Term::Tuple(t) => self.format_tuple_indent(&t.elements, indent), Term::List(l) => { if l.is_nil() { "[]".to_string() } else { self.format_list_indent(&l.elements, indent) } } Term::Map(m) => { let entries: Vec<(Term, Term)> = m.map.iter().map(|(k, v)| (k.clone(), v.clone())).collect(); self.format_map_indent(&entries, indent) } Term::Pid(p) => self.format_pid(p), Term::Reference(r) => self.format_reference(r), Term::BitBinary(bb) => { // The trailing partial byte is already in `bytes`, so only the // whole bytes before it count for eight. let total_bits = bb.bytes.len().saturating_sub(1) * 8 + bb.tail_bits_size as usize; format!("<<{} bits>>", total_bits) } Term::ByteList(bl) => self.format_binary(&bl.bytes), _ => format!("{:?}", term), } }
fn format_tuple_indent(&self, elements: &[Term], indent: usize) -> String { if should_format_multiline(elements) { let new_indent = indent + 2; let indent_str = " ".repeat(new_indent); let inner: Vec<String> = elements .iter() .map(|e| format!("{}{}", indent_str, self.format_term_indent(e, new_indent))) .collect(); format!("{{\n{}\n{}}}", inner.join(",\n"), " ".repeat(indent)) } else { let inner: Vec<String> = elements .iter() .map(|e| self.format_term_indent(e, indent)) .collect(); format!("{{{}}}", inner.join(", ")) } }
fn format_list_indent(&self, elements: &[Term], indent: usize) -> String { // Check if this is a charlist (string) if let Some(s) = try_as_charlist(elements) { return format!("\"{}\"", escape_string(&s)); }
if should_format_multiline(elements) { let new_indent = indent + 2; let indent_str = " ".repeat(new_indent); let inner: Vec<String> = elements .iter() .map(|e| format!("{}{}", indent_str, self.format_term_indent(e, new_indent))) .collect(); format!("[\n{}\n{}]", inner.join(",\n"), " ".repeat(indent)) } else { let inner: Vec<String> = elements .iter() .map(|e| self.format_term_indent(e, indent)) .collect(); format!("[{}]", inner.join(", ")) } }
fn format_map_indent(&self, entries: &[(Term, Term)], indent: usize) -> String { if entries.len() > 3 { let new_indent = indent + 2; let indent_str = " ".repeat(new_indent); let inner: Vec<String> = entries .iter() .map(|(k, v)| { format!( "{}{} => {}", indent_str, self.format_term_indent(k, new_indent), self.format_term_indent(v, new_indent) ) }) .collect(); format!("#{{\n{}\n{}}}", inner.join(",\n"), " ".repeat(indent)) } else { let inner: Vec<String> = entries .iter() .map(|(k, v)| { format!( "{} => {}", self.format_term_indent(k, indent), self.format_term_indent(v, indent) ) }) .collect(); format!("#{{{}}}", inner.join(", ")) } }}
/// Rendering that only [`ErlangFormatter::format_term`] needs; not part of/// [`TermFormatter`], which callers reach through `format_term`.impl ErlangFormatter { fn format_pid(&self, pid: &Pid) -> String { format!("<{}.{}.{}>", pid.node.name, pid.id, pid.serial) }}
impl TermFormatter for ErlangFormatter { fn format_term(&self, term: &Term) -> String { self.format_term_indent(term, 0) }
fn format_atom(&self, name: &str) -> String { if needs_quoting(name) { format!("'{}'", name) } else { name.to_string() } }
fn format_reference(&self, reference: &Reference) -> String { let id_str: Vec<String> = reference.id.iter().map(|i| i.to_string()).collect(); format!("#Ref<{}.{}>", reference.node.name, id_str.join(".")) }
fn format_binary(&self, bytes: &[u8]) -> String { if bytes.is_empty() { return "<<>>".to_string(); } if let Ok(s) = std::str::from_utf8(bytes) && s.chars() .all(|c| c.is_ascii_graphic() || c.is_ascii_whitespace()) { return format!("<<\"{}\">>", s); } let byte_str: Vec<String> = bytes.iter().map(|b| b.to_string()).collect(); format!("<<{}>>", byte_str.join(",")) }}
/// Elixir formatter - formats terms in idiomatic Elixir syntax.////// Full implementation for US-008.struct ElixirFormatter;
impl ElixirFormatter { fn format_term_indent(&self, term: &Term, indent: usize) -> String { match term { Term::Atom(a) => self.format_atom(&a.name), Term::FixInteger(i) => i.value.to_string(), Term::BigInteger(i) => i.value.to_string(), Term::Float(f) => format!("{}", f.value), Term::Binary(b) => self.format_binary(&b.bytes), Term::Tuple(t) => self.format_tuple_indent(&t.elements, indent), Term::List(l) => { if l.is_nil() { "[]".to_string() } else { self.format_list_indent(&l.elements, indent) } } Term::Map(m) => { let entries: Vec<(Term, Term)> = m.map.iter().map(|(k, v)| (k.clone(), v.clone())).collect(); self.format_map_indent(&entries, indent) } Term::Pid(p) => self.format_pid(p), Term::Reference(r) => self.format_reference(r), Term::BitBinary(bb) => { // The trailing partial byte is already in `bytes`, so only the // whole bytes before it count for eight. let total_bits = bb.bytes.len().saturating_sub(1) * 8 + bb.tail_bits_size as usize; format!("<<_::{} bits>>", total_bits) } Term::ByteList(bl) => self.format_binary(&bl.bytes), _ => format!("{:?}", term), } }
fn format_tuple_indent(&self, elements: &[Term], indent: usize) -> String { if should_format_multiline(elements) { let new_indent = indent + 2; let indent_str = " ".repeat(new_indent); let inner: Vec<String> = elements .iter() .map(|e| format!("{}{}", indent_str, self.format_term_indent(e, new_indent))) .collect(); format!("{{\n{}\n{}}}", inner.join(",\n"), " ".repeat(indent)) } else { let inner: Vec<String> = elements .iter() .map(|e| self.format_term_indent(e, indent)) .collect(); format!("{{{}}}", inner.join(", ")) } }
fn format_list_indent(&self, elements: &[Term], indent: usize) -> String { // Check if this is a charlist (string) if let Some(s) = try_as_charlist(elements) { return format!("~c\"{}\"", escape_string(&s)); }
// Check if this is a keyword list if is_keyword_list(elements) { return self.format_keyword_list(elements, indent); }
if should_format_multiline(elements) { let new_indent = indent + 2; let indent_str = " ".repeat(new_indent); let inner: Vec<String> = elements .iter() .map(|e| format!("{}{}", indent_str, self.format_term_indent(e, new_indent))) .collect(); format!("[\n{}\n{}]", inner.join(",\n"), " ".repeat(indent)) } else { let inner: Vec<String> = elements .iter() .map(|e| self.format_term_indent(e, indent)) .collect(); format!("[{}]", inner.join(", ")) } }
fn format_keyword_list(&self, elements: &[Term], indent: usize) -> String { let items: Vec<String> = elements .iter() .filter_map(|term| { if let Term::Tuple(t) = term && t.elements.len() == 2 && let Term::Atom(key) = &t.elements[0] { Some(format!( "{}: {}", self.format_atom_for_keyword(&key.name), self.format_term_indent(&t.elements[1], indent) )) } else { None } }) .collect(); format!("[{}]", items.join(", ")) }
fn format_atom_for_keyword(&self, name: &str) -> String { // For keyword list keys, just use the atom name without the leading : if needs_quoting(name) { format!("\"{}\"", name) } else { name.to_string() } }
fn format_map_indent(&self, entries: &[(Term, Term)], indent: usize) -> String { // Check if this is a struct (has __struct__ key) if let Some(struct_name) = extract_struct_name(entries) { return self.format_struct(&struct_name, entries, indent); }
// Check if all keys are atoms - use shorthand syntax let all_atom_keys = entries.iter().all(|(k, _)| matches!(k, Term::Atom(_)));
if entries.len() > 3 { let new_indent = indent + 2; let indent_str = " ".repeat(new_indent); let inner: Vec<String> = entries .iter() .filter(|(k, _)| !is_struct_key(k)) // Skip __struct__ key in display .map(|(k, v)| { if all_atom_keys && let Term::Atom(a) = k { format!( "{}{}: {}", indent_str, self.format_atom_for_keyword(&a.name), self.format_term_indent(v, new_indent) ) } else { format!( "{}{} => {}", indent_str, self.format_term_indent(k, new_indent), self.format_term_indent(v, new_indent) ) } }) .collect(); format!("%{{\n{}\n{}}}", inner.join(",\n"), " ".repeat(indent)) } else { let inner: Vec<String> = entries .iter() .filter(|(k, _)| !is_struct_key(k)) .map(|(k, v)| { if all_atom_keys && let Term::Atom(a) = k { format!( "{}: {}", self.format_atom_for_keyword(&a.name), self.format_term_indent(v, indent) ) } else { format!( "{} => {}", self.format_term_indent(k, indent), self.format_term_indent(v, indent) ) } }) .collect(); format!("%{{{}}}", inner.join(", ")) } }
fn format_struct(&self, struct_name: &str, entries: &[(Term, Term)], indent: usize) -> String { let module_name = format_module_name(struct_name);
let fields: Vec<String> = entries .iter() .filter(|(k, _)| !is_struct_key(k)) .map(|(k, v)| { if let Term::Atom(a) = k { format!( "{}: {}", self.format_atom_for_keyword(&a.name), self.format_term_indent(v, indent) ) } else { format!( "{} => {}", self.format_term_indent(k, indent), self.format_term_indent(v, indent) ) } }) .collect();
if fields.is_empty() { format!("%{}{{}}", module_name) } else { format!("%{}{{{}}}", module_name, fields.join(", ")) } }}
/// Rendering that only [`ElixirFormatter::format_term`] needs; not part of/// [`TermFormatter`], which callers reach through `format_term`.impl ElixirFormatter { fn format_pid(&self, pid: &Pid) -> String { format!("#PID<{}.{}.{}>", pid.node.name, pid.id, pid.serial) }}
impl TermFormatter for ElixirFormatter { fn format_term(&self, term: &Term) -> String { self.format_term_indent(term, 0) }
fn format_atom(&self, name: &str) -> String { // Check if this is a module atom (starts with Elixir.) let formatted_name = format_module_name(name); if formatted_name != name { // It's a module, return without : formatted_name } else if needs_quoting(name) { format!(":\"{}\"", name) } else { format!(":{}", name) } }
fn format_reference(&self, reference: &Reference) -> String { let id_str: Vec<String> = reference.id.iter().map(|i| i.to_string()).collect(); format!("#Reference<{}.{}>", reference.node.name, id_str.join(".")) }
fn format_binary(&self, bytes: &[u8]) -> String { if bytes.is_empty() { return "\"\"".to_string(); } if let Ok(s) = std::str::from_utf8(bytes) && s.chars() .all(|c| c.is_ascii_graphic() || c.is_ascii_whitespace()) { return format!("\"{}\"", escape_string(s)); } let byte_str: Vec<String> = bytes.iter().map(|b| b.to_string()).collect(); format!("<<{}>>", byte_str.join(", ")) }}
/// Gleam formatter - formats terms in Gleam-like syntax where possible.////// Full implementation for US-009.struct GleamFormatter;
impl GleamFormatter { /// Check if a tuple is a Gleam Result type and format accordingly. /// /// Returns Some(formatted) if it's an Ok or Error tuple, None otherwise. fn try_format_result_tuple(&self, elements: &[Term]) -> Option<String> { if elements.len() != 2 { return None; }
if let Term::Atom(tag) = &elements[0] { match tag.name.as_str() { "ok" => Some(format!("Ok({})", self.format_term(&elements[1]))), "error" => Some(format!("Error({})", self.format_term(&elements[1]))), _ => None, } } else { None } }}
/// Rendering that only [`GleamFormatter::format_term`] needs; not part of/// [`TermFormatter`], which callers reach through `format_term`.impl GleamFormatter { fn format_tuple(&self, elements: &[Term]) -> String { // Try to format as Result type first if let Some(result) = self.try_format_result_tuple(elements) { return result; }
// Otherwise format as Gleam tuple let inner: Vec<String> = elements.iter().map(|e| self.format_term(e)).collect(); format!("#({})", inner.join(", ")) }
fn format_list(&self, elements: &[Term]) -> String { let inner: Vec<String> = elements.iter().map(|e| self.format_term(e)).collect(); format!("[{}]", inner.join(", ")) }
fn format_map(&self, entries: &[(Term, Term)]) -> String { let inner: Vec<String> = entries .iter() .map(|(k, v)| format!("#({}, {})", self.format_term(k), self.format_term(v))) .collect(); format!("dict.from_list([{}])", inner.join(", ")) }
fn format_pid(&self, pid: &Pid) -> String { format!("//pid<{}.{}.{}>", pid.node.name, pid.id, pid.serial) }}
impl TermFormatter for GleamFormatter { fn format_term(&self, term: &Term) -> String { match term { Term::Atom(a) => self.format_atom(&a.name), Term::FixInteger(i) => i.value.to_string(), Term::BigInteger(i) => i.value.to_string(), Term::Float(f) => format!("{}", f.value), Term::Binary(b) => self.format_binary(&b.bytes), Term::Tuple(t) => self.format_tuple(&t.elements), Term::List(l) => { if l.is_nil() { "[]".to_string() } else { self.format_list(&l.elements) } } Term::Map(m) => { let entries: Vec<(Term, Term)> = m.map.iter().map(|(k, v)| (k.clone(), v.clone())).collect(); self.format_map(&entries) } Term::Pid(p) => self.format_pid(p), Term::Reference(r) => self.format_reference(r), Term::BitBinary(bb) => { // The trailing partial byte is already in `bytes`, so only the // whole bytes before it count for eight. let total_bits = bb.bytes.len().saturating_sub(1) * 8 + bb.tail_bits_size as usize; format!("<<_::{} bits>>", total_bits) } Term::ByteList(bl) => self.format_binary(&bl.bytes), _ => format!("{:?}", term), } }
fn format_atom(&self, name: &str) -> String { // Gleam has no atom literal, but a formatted atom is a value, not a // source snippet, so it gets no explanatory comment. if needs_quoting(name) { format!("'{}'", name) } else { name.to_string() } }
fn format_reference(&self, reference: &Reference) -> String { let id_str: Vec<String> = reference.id.iter().map(|i| i.to_string()).collect(); format!("//ref<{}.{}>", reference.node.name, id_str.join(".")) }
fn format_binary(&self, bytes: &[u8]) -> String { if bytes.is_empty() { return "\"\"".to_string(); } if let Ok(s) = std::str::from_utf8(bytes) && s.chars() .all(|c| c.is_ascii_graphic() || c.is_ascii_whitespace()) { return format!("\"{}\"", escape_string(s)); } let byte_str: Vec<String> = bytes.iter().map(|b| b.to_string()).collect(); format!("<<{}>>", byte_str.join(", ")) }}
/// Placeholder LFE (Lisp Flavoured Erlang) formatter.////// Full implementation will be provided in US-010.struct LfeFormatter;
/// Rendering that only [`LfeFormatter::format_term`] needs; not part of/// [`TermFormatter`], which callers reach through `format_term`.impl LfeFormatter { fn format_tuple(&self, elements: &[Term]) -> String { let inner: Vec<String> = elements.iter().map(|e| self.format_term(e)).collect(); format!("#({})", inner.join(" ")) }
fn format_list(&self, elements: &[Term]) -> String { let inner: Vec<String> = elements.iter().map(|e| self.format_term(e)).collect(); format!("'({})", inner.join(" ")) }
fn format_map(&self, entries: &[(Term, Term)]) -> String { let inner: Vec<String> = entries .iter() .map(|(k, v)| format!("{} {}", self.format_term(k), self.format_term(v))) .collect(); format!("#m({})", inner.join(" ")) }
fn format_pid(&self, pid: &Pid) -> String { format!("#Pid<{}.{}.{}>", pid.node.name, pid.id, pid.serial) }}
impl TermFormatter for LfeFormatter { fn format_term(&self, term: &Term) -> String { match term { Term::Atom(a) => self.format_atom(&a.name), Term::FixInteger(i) => i.value.to_string(), Term::BigInteger(i) => i.value.to_string(), Term::Float(f) => format!("{}", f.value), Term::Binary(b) => self.format_binary(&b.bytes), Term::Tuple(t) => self.format_tuple(&t.elements), Term::List(l) => { if l.is_nil() { "()".to_string() } else { self.format_list(&l.elements) } } Term::Map(m) => { let entries: Vec<(Term, Term)> = m.map.iter().map(|(k, v)| (k.clone(), v.clone())).collect(); self.format_map(&entries) } Term::Pid(p) => self.format_pid(p), Term::Reference(r) => self.format_reference(r), Term::BitBinary(bb) => { // The trailing partial byte is already in `bytes`, so only the // whole bytes before it count for eight. let total_bits = bb.bytes.len().saturating_sub(1) * 8 + bb.tail_bits_size as usize; format!("#B({} bits)", total_bits) } Term::ByteList(bl) => self.format_binary(&bl.bytes), _ => format!("{:?}", term), } }
fn format_atom(&self, name: &str) -> String { if name.is_empty() { "'||".to_string() } else if name.contains(' ') || name.contains('|') { format!("'|{}|", name) } else { format!("'{}", name) } }
fn format_reference(&self, reference: &Reference) -> String { let id_str: Vec<String> = reference.id.iter().map(|i| i.to_string()).collect(); format!("#Ref<{}.{}>", reference.node.name, id_str.join(".")) }
fn format_binary(&self, bytes: &[u8]) -> String { if bytes.is_empty() { return "\"\"".to_string(); } if let Ok(s) = std::str::from_utf8(bytes) && s.chars() .all(|c| c.is_ascii_graphic() || c.is_ascii_whitespace()) { return format!("\"{}\"", escape_string(s)); } let byte_str: Vec<String> = bytes.iter().map(|b| b.to_string()).collect(); format!("#B({})", byte_str.join(" ")) }}
/// Check if an atom name needs quoting in Erlang syntax.////// Atoms need quoting if they:/// - Start with an uppercase letter/// - Contain special characters (not alphanumeric or underscore)/// - Are emptyfn needs_quoting(name: &str) -> bool { if name.is_empty() { return true; }
let first_char = name.chars().next().unwrap_or(' '); if first_char.is_uppercase() || first_char.is_ascii_digit() { return true; }
!name .chars() .all(|c| c.is_ascii_alphanumeric() || c == '_' || c == '@')}
/// Try to interpret a list of terms as a charlist (string).////// Returns Some(String) if all elements are integers in the printable Latin-1 range,/// None otherwise.fn try_as_charlist(elements: &[Term]) -> Option<String> { let mut chars = Vec::with_capacity(elements.len());
for element in elements { let code = match element { Term::FixInteger(i) => i.value as i64, Term::BigInteger(i) => { // Big integers outside i64 range can't be valid chars i.value.clone().try_into().ok()? } _ => return None, };
// Check if it's a valid printable Latin-1 character // Allow printable ASCII (32-126), newline (10), tab (9), carriage return (13) if !(code == 9 || code == 10 || code == 13 || (32..=126).contains(&code)) { return None; }
chars.push(code as u8 as char); }
// Only treat as charlist if non-empty if chars.is_empty() { return None; }
Some(chars.into_iter().collect())}
/// Escape special characters in a string for Erlang syntax.fn escape_string(s: &str) -> String { let mut result = String::with_capacity(s.len()); for c in s.chars() { match c { '\\' => result.push_str("\\\\"), '"' => result.push_str("\\\""), '\n' => result.push_str("\\n"), '\r' => result.push_str("\\r"), '\t' => result.push_str("\\t"), _ => result.push(c), } } result}
/// Determine if a collection should be formatted on multiple lines.////// Uses multiline format when:/// - More than 5 elements/// - Any element is a nested collection (tuple, list, map)fn should_format_multiline(elements: &[Term]) -> bool { if elements.len() > 5 { return true; }
elements .iter() .any(|e| matches!(e, Term::Tuple(_) | Term::List(_) | Term::Map(_)))}
/// Format a module name in Elixir style.////// If the atom name starts with "Elixir.", strip that prefix and return the rest./// Otherwise return the name unchanged.fn format_module_name(name: &str) -> String { if let Some(stripped) = name.strip_prefix("Elixir.") { stripped.to_string() } else { name.to_string() }}
/// Check if a list is a keyword list.////// A keyword list is a list where every element is a 2-tuple with an atom as the first element.fn is_keyword_list(elements: &[Term]) -> bool { if elements.is_empty() { return false; }
elements.iter().all(|term| { if let Term::Tuple(t) = term && t.elements.len() == 2 && matches!(t.elements[0], Term::Atom(_)) { true } else { false } })}
/// Extract the struct name from a map's entries if it has a __struct__ key.////// Returns Some(struct_name) if __struct__ key is present with an atom value,/// None otherwise.fn extract_struct_name(entries: &[(Term, Term)]) -> Option<String> { entries.iter().find_map(|(k, v)| { if let Term::Atom(key_atom) = k && key_atom.name == "__struct__" && let Term::Atom(struct_atom) = v { Some(struct_atom.name.clone()) } else { None } })}
/// Check if a term is the __struct__ key.fn is_struct_key(term: &Term) -> bool { if let Term::Atom(a) = term { a.name == "__struct__" } else { false }}
#[cfg(test)]#[allow(clippy::unwrap_used)]mod tests { use super::*;
#[test] fn get_formatter_returns_correct_type() { let erlang = get_formatter(FormatterMode::Erlang); let elixir = get_formatter(FormatterMode::Elixir); let gleam = get_formatter(FormatterMode::Gleam); let lfe = get_formatter(FormatterMode::Lfe);
// Test that each formatter produces different output for atoms assert_eq!(erlang.format_atom("ok"), "ok"); assert_eq!(elixir.format_atom("ok"), ":ok"); assert_eq!(gleam.format_atom("ok"), "ok"); assert_eq!(lfe.format_atom("ok"), "'ok"); }
#[test] fn needs_quoting_simple_atoms() { assert!(!needs_quoting("ok")); assert!(!needs_quoting("error")); assert!(!needs_quoting("foo_bar")); assert!(!needs_quoting("node@host")); }
#[test] fn needs_quoting_special_atoms() { assert!(needs_quoting("Uppercase")); assert!(needs_quoting("123starts_with_digit")); assert!(needs_quoting("with-dash")); assert!(needs_quoting("with space")); assert!(needs_quoting("")); }
#[test] fn erlang_format_atom_simple() { let formatter = ErlangFormatter; assert_eq!(formatter.format_atom("ok"), "ok"); assert_eq!(formatter.format_atom("error"), "error"); }
#[test] fn erlang_format_atom_needs_quotes() { let formatter = ErlangFormatter; assert_eq!(formatter.format_atom("with-dash"), "'with-dash'"); assert_eq!(formatter.format_atom("Uppercase"), "'Uppercase'"); }
#[test] fn gleam_format_tuple() { let formatter = GleamFormatter; let elements = vec![ Term::from(eetf::Atom::from("ok")), Term::from(eetf::FixInteger::from(42)), ]; let result = formatter.format_tuple(&elements); // Now formats as Result type assert_eq!(result, "Ok(42)"); }
#[test] fn lfe_format_tuple() { let formatter = LfeFormatter; let elements = vec![ Term::from(eetf::Atom::from("ok")), Term::from(eetf::FixInteger::from(42)), ]; let result = formatter.format_tuple(&elements); assert_eq!(result, "#('ok 42)"); }
#[test] fn erlang_format_list() { let formatter = ErlangFormatter; let elements = vec![ Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), Term::from(eetf::FixInteger::from(3)), ]; let result = formatter.format_term(&Term::from(eetf::List::from(elements.clone()))); assert_eq!(result, "[1, 2, 3]"); }
#[test] fn erlang_format_binary_text() { let formatter = ErlangFormatter; let result = formatter.format_binary(b"hello"); assert_eq!(result, "<<\"hello\">>"); }
#[test] fn erlang_format_binary_raw() { let formatter = ErlangFormatter; let result = formatter.format_binary(&[1, 2, 255]); assert_eq!(result, "<<1,2,255>>"); }
// ============================================ // Comprehensive Erlang formatter tests (US-007) // ============================================
#[test] fn erlang_format_atom_with_at_symbol() { let formatter = ErlangFormatter; assert_eq!(formatter.format_atom("node@host"), "node@host"); }
#[test] fn erlang_format_atom_empty() { let formatter = ErlangFormatter; assert_eq!(formatter.format_atom(""), "''"); }
#[test] fn erlang_format_tuple_empty() { let formatter = ErlangFormatter; let result = formatter.format_term(&Term::from(eetf::Tuple::from(vec![]))); assert_eq!(result, "{}"); }
#[test] fn erlang_format_tuple_ok_value() { let formatter = ErlangFormatter; let elements = vec![ Term::from(eetf::Atom::from("ok")), Term::from(eetf::FixInteger::from(42)), ]; let result = formatter.format_term(&Term::from(eetf::Tuple::from(elements.clone()))); assert_eq!(result, "{ok, 42}"); }
#[test] fn erlang_format_tuple_error() { let formatter = ErlangFormatter; let elements = vec![ Term::from(eetf::Atom::from("error")), Term::from(eetf::Atom::from("not_found")), ]; let result = formatter.format_term(&Term::from(eetf::Tuple::from(elements.clone()))); assert_eq!(result, "{error, not_found}"); }
#[test] fn erlang_format_list_empty() { let formatter = ErlangFormatter; let nil = eetf::List::nil(); let term = Term::from(nil); let result = formatter.format_term(&term); assert_eq!(result, "[]"); }
#[test] fn erlang_format_charlist() { let formatter = ErlangFormatter; // "hello" as charlist: [104, 101, 108, 108, 111] let elements = vec![ Term::from(eetf::FixInteger::from(104)), // h Term::from(eetf::FixInteger::from(101)), // e Term::from(eetf::FixInteger::from(108)), // l Term::from(eetf::FixInteger::from(108)), // l Term::from(eetf::FixInteger::from(111)), // o ]; let result = formatter.format_term(&Term::from(eetf::List::from(elements.clone()))); assert_eq!(result, "\"hello\""); }
#[test] fn erlang_format_charlist_with_escape() { let formatter = ErlangFormatter; // "a\nb" as charlist: [97, 10, 98] let elements = vec![ Term::from(eetf::FixInteger::from(97)), // a Term::from(eetf::FixInteger::from(10)), // newline Term::from(eetf::FixInteger::from(98)), // b ]; let result = formatter.format_term(&Term::from(eetf::List::from(elements.clone()))); assert_eq!(result, "\"a\\nb\""); }
#[test] fn erlang_format_non_charlist_integers() { let formatter = ErlangFormatter; // [1, 2, 3] should stay as list, not be treated as charlist (non-printable) let elements = vec![ Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), Term::from(eetf::FixInteger::from(3)), ]; let result = formatter.format_term(&Term::from(eetf::List::from(elements.clone()))); assert_eq!(result, "[1, 2, 3]"); }
#[test] fn erlang_format_map_empty() { let formatter = ErlangFormatter; let result = formatter.format_term(&Term::from(eetf::Map::from(std::collections::HashMap::< Term, Term, >::new()))); assert_eq!(result, "#{}"); }
#[test] fn erlang_format_map_single_entry() { let formatter = ErlangFormatter; let entries = [( Term::from(eetf::Atom::from("key")), Term::from(eetf::FixInteger::from(42)), )]; let result = formatter.format_term(&Term::from(eetf::Map::from( entries .iter() .cloned() .collect::<std::collections::HashMap<_, _>>(), ))); assert_eq!(result, "#{key => 42}"); }
#[test] fn erlang_format_map_multiple_entries() { let formatter = ErlangFormatter; let entries = [ ( Term::from(eetf::Atom::from("a")), Term::from(eetf::FixInteger::from(1)), ), ( Term::from(eetf::Atom::from("b")), Term::from(eetf::FixInteger::from(2)), ), ]; let result = formatter.format_term(&Term::from(eetf::Map::from( entries .iter() .cloned() .collect::<std::collections::HashMap<_, _>>(), ))); assert!( result.starts_with("#{") && result.ends_with('}'), "{}", result ); assert!(result.contains("a => 1"), "{}", result); assert!(result.contains("b => 2"), "{}", result); }
#[test] fn erlang_format_pid() { let formatter = ErlangFormatter; let pid = eetf::Pid { node: eetf::Atom::from("nonode@nohost"), id: 123, serial: 0, creation: 0, }; let result = formatter.format_pid(&pid); assert_eq!(result, "<nonode@nohost.123.0>"); }
#[test] fn erlang_format_reference() { let formatter = ErlangFormatter; let reference = eetf::Reference { node: eetf::Atom::from("nonode@nohost"), id: vec![123, 456, 789], creation: 0, }; let result = formatter.format_reference(&reference); assert_eq!(result, "#Ref<nonode@nohost.123.456.789>"); }
#[test] fn erlang_format_binary_empty() { let formatter = ErlangFormatter; let result = formatter.format_binary(&[]); assert_eq!(result, "<<>>"); }
#[test] fn erlang_format_integer_positive() { let formatter = ErlangFormatter; let term = Term::from(eetf::FixInteger::from(42)); let result = formatter.format_term(&term); assert_eq!(result, "42"); }
#[test] fn erlang_format_integer_negative() { let formatter = ErlangFormatter; let term = Term::from(eetf::FixInteger::from(-42)); let result = formatter.format_term(&term); assert_eq!(result, "-42"); }
#[test] fn erlang_format_float() { let formatter = ErlangFormatter; let term = Term::from(eetf::Float { value: 42.5 }); let result = formatter.format_term(&term); assert!(result.starts_with("42.5")); // Float formatting may vary }
#[test] fn erlang_format_nested_tuple_in_list() { let formatter = ErlangFormatter; let tuple = eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("ok")), Term::from(eetf::FixInteger::from(1)), ]); let elements = vec![Term::from(tuple)]; let result = formatter.format_term(&Term::from(eetf::List::from(elements.clone()))); // Should use multiline because list contains a tuple assert!(result.contains("{ok, 1}")); }
#[test] fn erlang_format_nested_deeply() { use std::collections::HashMap;
let formatter = ErlangFormatter;
// Create: {ok, #{data => [1, 2, 3]}} let inner_list = eetf::List::from(vec![ Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), Term::from(eetf::FixInteger::from(3)), ]); let mut map_data: HashMap<Term, Term> = HashMap::new(); map_data.insert(Term::from(eetf::Atom::from("data")), Term::from(inner_list)); let map = eetf::Map::from(map_data); let outer_tuple = eetf::Tuple::from(vec![Term::from(eetf::Atom::from("ok")), Term::from(map)]);
let term = Term::from(outer_tuple); let result = formatter.format_term(&term);
// Should contain the nested structure assert!(result.contains("ok")); assert!(result.contains("data")); assert!(result.contains("=>")); }
#[test] fn try_as_charlist_valid_string() { let elements = vec![ Term::from(eetf::FixInteger::from(104)), // h Term::from(eetf::FixInteger::from(105)), // i ]; assert_eq!(try_as_charlist(&elements), Some("hi".to_string())); }
#[test] fn try_as_charlist_with_whitespace() { let elements = vec![ Term::from(eetf::FixInteger::from(104)), // h Term::from(eetf::FixInteger::from(32)), // space Term::from(eetf::FixInteger::from(105)), // i ]; assert_eq!(try_as_charlist(&elements), Some("h i".to_string())); }
#[test] fn try_as_charlist_with_tab() { let elements = vec![ Term::from(eetf::FixInteger::from(97)), // a Term::from(eetf::FixInteger::from(9)), // tab Term::from(eetf::FixInteger::from(98)), // b ]; assert_eq!(try_as_charlist(&elements), Some("a\tb".to_string())); }
#[test] fn try_as_charlist_empty() { let elements: Vec<Term> = vec![]; assert_eq!(try_as_charlist(&elements), None); }
#[test] fn try_as_charlist_non_printable() { let elements = vec![ Term::from(eetf::FixInteger::from(1)), // non-printable Term::from(eetf::FixInteger::from(2)), ]; assert_eq!(try_as_charlist(&elements), None); }
#[test] fn try_as_charlist_mixed_types() { let elements = vec![ Term::from(eetf::FixInteger::from(104)), Term::from(eetf::Atom::from("not_an_int")), ]; assert_eq!(try_as_charlist(&elements), None); }
#[test] fn escape_string_basic() { assert_eq!(escape_string("hello"), "hello"); }
#[test] fn escape_string_with_newline() { assert_eq!(escape_string("a\nb"), "a\\nb"); }
#[test] fn escape_string_with_quote() { assert_eq!(escape_string("say \"hi\""), "say \\\"hi\\\""); }
#[test] fn escape_string_with_backslash() { assert_eq!(escape_string("a\\b"), "a\\\\b"); }
#[test] fn escape_string_with_tab_and_carriage_return() { assert_eq!(escape_string("a\t\rb"), "a\\t\\rb"); }
#[test] fn should_format_multiline_few_elements() { let elements = vec![ Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), ]; assert!(!should_format_multiline(&elements)); }
#[test] fn should_format_multiline_many_elements() { let elements = vec![ Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), Term::from(eetf::FixInteger::from(3)), Term::from(eetf::FixInteger::from(4)), Term::from(eetf::FixInteger::from(5)), Term::from(eetf::FixInteger::from(6)), ]; assert!(should_format_multiline(&elements)); }
#[test] fn should_format_multiline_with_nested_tuple() { let tuple = eetf::Tuple::from(vec![Term::from(eetf::Atom::from("ok"))]); let elements = vec![Term::from(tuple)]; assert!(should_format_multiline(&elements)); }
#[test] fn should_format_multiline_with_nested_list() { let list = eetf::List::from(vec![Term::from(eetf::FixInteger::from(1))]); let elements = vec![Term::from(list)]; assert!(should_format_multiline(&elements)); }
#[test] fn should_format_multiline_with_nested_map() { use std::collections::HashMap;
let mut map_data: HashMap<Term, Term> = HashMap::new(); map_data.insert( Term::from(eetf::Atom::from("key")), Term::from(eetf::FixInteger::from(1)), ); let map = eetf::Map::from(map_data); let elements = vec![Term::from(map)]; assert!(should_format_multiline(&elements)); }
#[test] fn erlang_format_full_term_atom() { let formatter = get_formatter(FormatterMode::Erlang); let term = Term::from(eetf::Atom::from("ok")); assert_eq!(formatter.format_term(&term), "ok"); }
#[test] fn erlang_format_full_term_tuple() { let formatter = get_formatter(FormatterMode::Erlang); let tuple = eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("ok")), Term::from(eetf::FixInteger::from(42)), ]); let term = Term::from(tuple); assert_eq!(formatter.format_term(&term), "{ok, 42}"); }
#[test] fn erlang_format_full_term_list() { let formatter = get_formatter(FormatterMode::Erlang); let list = eetf::List::from(vec![ Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), Term::from(eetf::FixInteger::from(3)), ]); let term = Term::from(list); assert_eq!(formatter.format_term(&term), "[1, 2, 3]"); }
#[test] fn erlang_format_full_term_binary() { let formatter = get_formatter(FormatterMode::Erlang); let binary = eetf::Binary::from(b"hello".to_vec()); let term = Term::from(binary); assert_eq!(formatter.format_term(&term), "<<\"hello\">>"); }
#[test] fn erlang_format_full_term_map() { use std::collections::HashMap;
let formatter = get_formatter(FormatterMode::Erlang); let mut map_data: HashMap<Term, Term> = HashMap::new(); map_data.insert( Term::from(eetf::Atom::from("key")), Term::from(eetf::FixInteger::from(42)), ); let map = eetf::Map::from(map_data); let term = Term::from(map); assert_eq!(formatter.format_term(&term), "#{key => 42}"); }
#[test] fn erlang_format_full_term_pid() { let formatter = get_formatter(FormatterMode::Erlang); let pid = eetf::Pid { node: eetf::Atom::from("nonode@nohost"), id: 100, serial: 0, creation: 0, }; let term = Term::from(pid); assert_eq!(formatter.format_term(&term), "<nonode@nohost.100.0>"); }
#[test] fn erlang_format_full_term_reference() { let formatter = get_formatter(FormatterMode::Erlang); let reference = eetf::Reference { node: eetf::Atom::from("nonode@nohost"), id: vec![1, 2, 3], creation: 0, }; let term = Term::from(reference); assert_eq!(formatter.format_term(&term), "#Ref<nonode@nohost.1.2.3>"); }
// ============================================ // Comprehensive Elixir formatter tests (US-008) // ============================================
#[test] fn elixir_format_atom_simple() { let formatter = ElixirFormatter; assert_eq!(formatter.format_atom("ok"), ":ok"); assert_eq!(formatter.format_atom("error"), ":error"); }
#[test] fn elixir_format_atom_needs_quotes() { let formatter = ElixirFormatter; assert_eq!(formatter.format_atom("with-dash"), ":\"with-dash\""); assert_eq!(formatter.format_atom("with space"), ":\"with space\""); }
#[test] fn elixir_format_atom_module() { let formatter = ElixirFormatter; assert_eq!(formatter.format_atom("Elixir.MyModule"), "MyModule"); assert_eq!( formatter.format_atom("Elixir.My.Nested.Module"), "My.Nested.Module" ); }
#[test] fn elixir_format_atom_module_in_term() { let formatter = get_formatter(FormatterMode::Elixir); let term = Term::from(eetf::Atom::from("Elixir.Phoenix.Socket")); assert_eq!(formatter.format_term(&term), "Phoenix.Socket"); }
#[test] fn elixir_format_tuple_ok_value() { let formatter = ElixirFormatter; let elements = vec![ Term::from(eetf::Atom::from("ok")), Term::from(eetf::FixInteger::from(42)), ]; let result = formatter.format_term(&Term::from(eetf::Tuple::from(elements.clone()))); assert_eq!(result, "{:ok, 42}"); }
#[test] fn elixir_format_tuple_error() { let formatter = ElixirFormatter; let elements = vec![ Term::from(eetf::Atom::from("error")), Term::from(eetf::Atom::from("not_found")), ]; let result = formatter.format_term(&Term::from(eetf::Tuple::from(elements.clone()))); assert_eq!(result, "{:error, :not_found}"); }
#[test] fn elixir_format_list_integers() { let formatter = ElixirFormatter; let elements = vec![ Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), Term::from(eetf::FixInteger::from(3)), ]; let result = formatter.format_term(&Term::from(eetf::List::from(elements.clone()))); assert_eq!(result, "[1, 2, 3]"); }
#[test] fn elixir_format_list_empty() { let formatter = ElixirFormatter; let nil = eetf::List::nil(); let term = Term::from(nil); let result = formatter.format_term(&term); assert_eq!(result, "[]"); }
#[test] fn elixir_format_charlist() { let formatter = ElixirFormatter; // "hello" as charlist: [104, 101, 108, 108, 111] let elements = vec![ Term::from(eetf::FixInteger::from(104)), // h Term::from(eetf::FixInteger::from(101)), // e Term::from(eetf::FixInteger::from(108)), // l Term::from(eetf::FixInteger::from(108)), // l Term::from(eetf::FixInteger::from(111)), // o ]; let result = formatter.format_term(&Term::from(eetf::List::from(elements.clone()))); assert_eq!(result, "~c\"hello\""); }
#[test] fn elixir_format_charlist_with_escape() { let formatter = ElixirFormatter; // "a\nb" as charlist let elements = vec![ Term::from(eetf::FixInteger::from(97)), // a Term::from(eetf::FixInteger::from(10)), // newline Term::from(eetf::FixInteger::from(98)), // b ]; let result = formatter.format_term(&Term::from(eetf::List::from(elements.clone()))); assert_eq!(result, "~c\"a\\nb\""); }
#[test] fn elixir_format_keyword_list() { let formatter = ElixirFormatter; let elements = vec![ Term::from(eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("name")), Term::from(eetf::Binary::from(b"Alice".to_vec())), ])), Term::from(eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("age")), Term::from(eetf::FixInteger::from(30)), ])), ]; let result = formatter.format_term(&Term::from(eetf::List::from(elements.clone()))); assert_eq!(result, "[name: \"Alice\", age: 30]"); }
#[test] fn elixir_format_keyword_list_single_item() { let formatter = ElixirFormatter; let elements = vec![Term::from(eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("key")), Term::from(eetf::Atom::from("value")), ]))]; let result = formatter.format_term(&Term::from(eetf::List::from(elements.clone()))); assert_eq!(result, "[key: :value]"); }
#[test] fn elixir_format_binary_text() { let formatter = ElixirFormatter; let result = formatter.format_binary(b"hello"); assert_eq!(result, "\"hello\""); }
#[test] fn elixir_format_binary_empty() { let formatter = ElixirFormatter; let result = formatter.format_binary(&[]); assert_eq!(result, "\"\""); }
#[test] fn elixir_format_binary_raw() { let formatter = ElixirFormatter; let result = formatter.format_binary(&[1, 2, 255]); assert_eq!(result, "<<1, 2, 255>>"); }
#[test] fn elixir_format_binary_with_escapes() { let formatter = ElixirFormatter; let result = formatter.format_binary(b"hello\nworld"); assert_eq!(result, "\"hello\\nworld\""); }
#[test] fn elixir_format_map_atom_keys() { let formatter = ElixirFormatter; let entries = [ ( Term::from(eetf::Atom::from("name")), Term::from(eetf::Binary::from(b"Alice".to_vec())), ), ( Term::from(eetf::Atom::from("age")), Term::from(eetf::FixInteger::from(30)), ), ]; let result = formatter.format_term(&Term::from(eetf::Map::from( entries .iter() .cloned() .collect::<std::collections::HashMap<_, _>>(), ))); assert!( result.starts_with("%{") && result.ends_with('}'), "{}", result ); assert!(result.contains("name: \"Alice\""), "{}", result); assert!(result.contains("age: 30"), "{}", result); }
#[test] fn elixir_format_map_string_keys() { let formatter = ElixirFormatter; let entries = [ ( Term::from(eetf::Binary::from(b"name".to_vec())), Term::from(eetf::Binary::from(b"Alice".to_vec())), ), ( Term::from(eetf::Binary::from(b"age".to_vec())), Term::from(eetf::FixInteger::from(30)), ), ]; let result = formatter.format_term(&Term::from(eetf::Map::from( entries .iter() .cloned() .collect::<std::collections::HashMap<_, _>>(), ))); assert!( result.starts_with("%{") && result.ends_with('}'), "{}", result ); assert!(result.contains("\"name\" => \"Alice\""), "{}", result); assert!(result.contains("\"age\" => 30"), "{}", result); }
#[test] fn elixir_format_map_mixed_keys() { let formatter = ElixirFormatter; let entries = [ ( Term::from(eetf::Atom::from("atom_key")), Term::from(eetf::FixInteger::from(1)), ), ( Term::from(eetf::Binary::from(b"string_key".to_vec())), Term::from(eetf::FixInteger::from(2)), ), ]; let result = formatter.format_term(&Term::from(eetf::Map::from( entries .iter() .cloned() .collect::<std::collections::HashMap<_, _>>(), ))); // When keys are mixed types, use => syntax for all assert!( result.starts_with("%{") && result.ends_with('}'), "{}", result ); assert!(result.contains(":atom_key => 1"), "{}", result); assert!(result.contains("\"string_key\" => 2"), "{}", result); }
#[test] fn elixir_format_map_empty() { let formatter = ElixirFormatter; let result = formatter.format_term(&Term::from(eetf::Map::from(std::collections::HashMap::< Term, Term, >::new()))); assert_eq!(result, "%{}"); }
#[test] fn elixir_format_struct_simple() { let formatter = ElixirFormatter; let entries = [ ( Term::from(eetf::Atom::from("__struct__")), Term::from(eetf::Atom::from("Elixir.User")), ), ( Term::from(eetf::Atom::from("name")), Term::from(eetf::Binary::from(b"Alice".to_vec())), ), ( Term::from(eetf::Atom::from("age")), Term::from(eetf::FixInteger::from(30)), ), ]; let result = formatter.format_term(&Term::from(eetf::Map::from( entries .iter() .cloned() .collect::<std::collections::HashMap<_, _>>(), ))); assert!( result.starts_with("%User{") && result.ends_with('}'), "{}", result ); assert!(result.contains("name: \"Alice\""), "{}", result); assert!(result.contains("age: 30"), "{}", result); }
#[test] fn elixir_format_struct_nested_module() { let formatter = ElixirFormatter; let entries = [ ( Term::from(eetf::Atom::from("__struct__")), Term::from(eetf::Atom::from("Elixir.MyApp.User")), ), ( Term::from(eetf::Atom::from("id")), Term::from(eetf::FixInteger::from(123)), ), ]; let result = formatter.format_term(&Term::from(eetf::Map::from( entries .iter() .cloned() .collect::<std::collections::HashMap<_, _>>(), ))); assert_eq!(result, "%MyApp.User{id: 123}"); }
#[test] fn elixir_format_struct_empty() { let formatter = ElixirFormatter; let entries = [( Term::from(eetf::Atom::from("__struct__")), Term::from(eetf::Atom::from("Elixir.Empty")), )]; let result = formatter.format_term(&Term::from(eetf::Map::from( entries .iter() .cloned() .collect::<std::collections::HashMap<_, _>>(), ))); assert_eq!(result, "%Empty{}"); }
#[test] fn elixir_format_pid() { let formatter = ElixirFormatter; let pid = eetf::Pid { node: eetf::Atom::from("nonode@nohost"), id: 123, serial: 0, creation: 0, }; let result = formatter.format_pid(&pid); assert_eq!(result, "#PID<nonode@nohost.123.0>"); }
#[test] fn elixir_format_reference() { let formatter = ElixirFormatter; let reference = eetf::Reference { node: eetf::Atom::from("nonode@nohost"), id: vec![0, 123, 456], creation: 0, }; let result = formatter.format_reference(&reference); assert_eq!(result, "#Reference<nonode@nohost.0.123.456>"); }
#[test] fn elixir_format_full_term_atom() { let formatter = get_formatter(FormatterMode::Elixir); let term = Term::from(eetf::Atom::from("ok")); assert_eq!(formatter.format_term(&term), ":ok"); }
#[test] fn elixir_format_full_term_integer() { let formatter = get_formatter(FormatterMode::Elixir); let term = Term::from(eetf::FixInteger::from(42)); assert_eq!(formatter.format_term(&term), "42"); }
#[test] fn elixir_format_full_term_float() { let formatter = get_formatter(FormatterMode::Elixir); let term = Term::from(eetf::Float { value: 42.5 }); assert!(formatter.format_term(&term).starts_with("42.5")); }
#[test] fn elixir_format_full_term_binary() { let formatter = get_formatter(FormatterMode::Elixir); let binary = eetf::Binary::from(b"hello".to_vec()); let term = Term::from(binary); assert_eq!(formatter.format_term(&term), "\"hello\""); }
#[test] fn elixir_format_full_term_tuple() { let formatter = get_formatter(FormatterMode::Elixir); let tuple = eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("ok")), Term::from(eetf::FixInteger::from(42)), ]); let term = Term::from(tuple); assert_eq!(formatter.format_term(&term), "{:ok, 42}"); }
#[test] fn elixir_format_full_term_list() { let formatter = get_formatter(FormatterMode::Elixir); let list = eetf::List::from(vec![ Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), Term::from(eetf::FixInteger::from(3)), ]); let term = Term::from(list); assert_eq!(formatter.format_term(&term), "[1, 2, 3]"); }
#[test] fn elixir_format_full_term_keyword_list() { let formatter = get_formatter(FormatterMode::Elixir); let list = eetf::List::from(vec![ Term::from(eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("name")), Term::from(eetf::Binary::from(b"Alice".to_vec())), ])), Term::from(eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("age")), Term::from(eetf::FixInteger::from(30)), ])), ]); let term = Term::from(list); assert_eq!(formatter.format_term(&term), "[name: \"Alice\", age: 30]"); }
#[test] fn elixir_format_full_term_map() { use std::collections::HashMap;
let formatter = get_formatter(FormatterMode::Elixir); let mut map_data: HashMap<Term, Term> = HashMap::new(); map_data.insert( Term::from(eetf::Atom::from("key")), Term::from(eetf::FixInteger::from(42)), ); let map = eetf::Map::from(map_data); let term = Term::from(map); assert_eq!(formatter.format_term(&term), "%{key: 42}"); }
#[test] fn elixir_format_full_term_struct() { use std::collections::HashMap;
let formatter = get_formatter(FormatterMode::Elixir); let mut map_data: HashMap<Term, Term> = HashMap::new(); map_data.insert( Term::from(eetf::Atom::from("__struct__")), Term::from(eetf::Atom::from("Elixir.User")), ); map_data.insert( Term::from(eetf::Atom::from("name")), Term::from(eetf::Binary::from(b"Alice".to_vec())), ); let map = eetf::Map::from(map_data); let term = Term::from(map); assert_eq!(formatter.format_term(&term), "%User{name: \"Alice\"}"); }
#[test] fn elixir_format_full_term_pid() { let formatter = get_formatter(FormatterMode::Elixir); let pid = eetf::Pid { node: eetf::Atom::from("node@host"), id: 100, serial: 0, creation: 0, }; let term = Term::from(pid); assert_eq!(formatter.format_term(&term), "#PID<node@host.100.0>"); }
#[test] fn elixir_format_full_term_reference() { let formatter = get_formatter(FormatterMode::Elixir); let reference = eetf::Reference { node: eetf::Atom::from("node@host"), id: vec![1, 2, 3], creation: 0, }; let term = Term::from(reference); assert_eq!(formatter.format_term(&term), "#Reference<node@host.1.2.3>"); }
#[test] fn is_keyword_list_valid() { let elements = vec![ Term::from(eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("key1")), Term::from(eetf::FixInteger::from(1)), ])), Term::from(eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("key2")), Term::from(eetf::FixInteger::from(2)), ])), ]; assert!(is_keyword_list(&elements)); }
#[test] fn is_keyword_list_empty() { let elements: Vec<Term> = vec![]; assert!(!is_keyword_list(&elements)); }
#[test] fn is_keyword_list_wrong_tuple_size() { let elements = vec![Term::from(eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("key")), Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), // 3 elements ]))]; assert!(!is_keyword_list(&elements)); }
#[test] fn is_keyword_list_non_atom_key() { let elements = vec![Term::from(eetf::Tuple::from(vec![ Term::from(eetf::FixInteger::from(123)), // Not an atom Term::from(eetf::FixInteger::from(1)), ]))]; assert!(!is_keyword_list(&elements)); }
#[test] fn is_keyword_list_not_all_tuples() { let elements = vec![ Term::from(eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("key")), Term::from(eetf::FixInteger::from(1)), ])), Term::from(eetf::FixInteger::from(2)), // Not a tuple ]; assert!(!is_keyword_list(&elements)); }
#[test] fn extract_struct_name_valid() { let entries = [ ( Term::from(eetf::Atom::from("__struct__")), Term::from(eetf::Atom::from("Elixir.MyModule")), ), ( Term::from(eetf::Atom::from("field")), Term::from(eetf::FixInteger::from(42)), ), ]; assert_eq!( extract_struct_name(&entries), Some("Elixir.MyModule".to_string()) ); }
#[test] fn extract_struct_name_none() { let entries = [( Term::from(eetf::Atom::from("field")), Term::from(eetf::FixInteger::from(42)), )]; assert_eq!(extract_struct_name(&entries), None); }
#[test] fn format_module_name_with_prefix() { assert_eq!(format_module_name("Elixir.MyModule"), "MyModule"); assert_eq!( format_module_name("Elixir.My.Nested.Module"), "My.Nested.Module" ); }
#[test] fn format_module_name_without_prefix() { assert_eq!(format_module_name("my_atom"), "my_atom"); assert_eq!(format_module_name("ok"), "ok"); }
#[test] fn is_struct_key_true() { let term = Term::from(eetf::Atom::from("__struct__")); assert!(is_struct_key(&term)); }
#[test] fn is_struct_key_false() { let term = Term::from(eetf::Atom::from("other_key")); assert!(!is_struct_key(&term)); }
#[test] fn is_struct_key_non_atom() { let term = Term::from(eetf::FixInteger::from(123)); assert!(!is_struct_key(&term)); }
// ============================================ // Comprehensive Gleam formatter tests (US-009) // ============================================
#[test] fn gleam_format_atom_simple() { let formatter = GleamFormatter; assert_eq!(formatter.format_atom("ok"), "ok"); assert_eq!(formatter.format_atom("error"), "error"); }
#[test] fn gleam_format_atom_needs_quotes() { let formatter = GleamFormatter; assert_eq!(formatter.format_atom("with-dash"), "'with-dash'"); assert_eq!(formatter.format_atom("with space"), "'with space'"); }
#[test] fn gleam_format_tuple_ok() { let formatter = GleamFormatter; let elements = vec![ Term::from(eetf::Atom::from("ok")), Term::from(eetf::FixInteger::from(42)), ]; let result = formatter.format_tuple(&elements); assert_eq!(result, "Ok(42)"); }
#[test] fn gleam_format_tuple_ok_with_nested() { let formatter = GleamFormatter; let inner_tuple = eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("data")), Term::from(eetf::FixInteger::from(123)), ]); let elements = vec![Term::from(eetf::Atom::from("ok")), Term::from(inner_tuple)]; let result = formatter.format_tuple(&elements); assert_eq!(result, "Ok(#(data, 123))"); }
#[test] fn gleam_format_tuple_error() { let formatter = GleamFormatter; let elements = vec![ Term::from(eetf::Atom::from("error")), Term::from(eetf::Atom::from("not_found")), ]; let result = formatter.format_tuple(&elements); assert_eq!(result, "Error(not_found)"); }
#[test] fn gleam_format_tuple_error_with_string() { let formatter = GleamFormatter; let elements = vec![ Term::from(eetf::Atom::from("error")), Term::from(eetf::Binary::from(b"not found".to_vec())), ]; let result = formatter.format_tuple(&elements); assert_eq!(result, "Error(\"not found\")"); }
#[test] fn gleam_format_tuple_regular() { let formatter = GleamFormatter; let elements = vec![ Term::from(eetf::Atom::from("data")), Term::from(eetf::FixInteger::from(42)), Term::from(eetf::FixInteger::from(100)), ]; let result = formatter.format_tuple(&elements); assert_eq!(result, "#(data, 42, 100)"); }
#[test] fn gleam_format_tuple_empty() { let formatter = GleamFormatter; let result = formatter.format_tuple(&[]); assert_eq!(result, "#()"); }
#[test] fn gleam_format_list_integers() { let formatter = GleamFormatter; let elements = vec![ Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), Term::from(eetf::FixInteger::from(3)), ]; let result = formatter.format_list(&elements); assert_eq!(result, "[1, 2, 3]"); }
#[test] fn gleam_format_list_empty() { let formatter = GleamFormatter; let nil = eetf::List::nil(); let term = Term::from(nil); let result = formatter.format_term(&term); assert_eq!(result, "[]"); }
#[test] fn gleam_format_binary_text() { let formatter = GleamFormatter; let result = formatter.format_binary(b"hello"); assert_eq!(result, "\"hello\""); }
#[test] fn gleam_format_binary_empty() { let formatter = GleamFormatter; let result = formatter.format_binary(&[]); assert_eq!(result, "\"\""); }
#[test] fn gleam_format_binary_raw_bytes() { let formatter = GleamFormatter; let result = formatter.format_binary(&[1, 2, 255]); assert_eq!(result, "<<1, 2, 255>>"); }
#[test] fn gleam_format_binary_with_escapes() { let formatter = GleamFormatter; let result = formatter.format_binary(b"hello\nworld"); assert_eq!(result, "\"hello\\nworld\""); }
#[test] fn gleam_format_map_simple() { let formatter = GleamFormatter; let entries = [ ( Term::from(eetf::Binary::from(b"key".to_vec())), Term::from(eetf::FixInteger::from(42)), ), ( Term::from(eetf::Binary::from(b"name".to_vec())), Term::from(eetf::Binary::from(b"Alice".to_vec())), ), ]; let result = formatter.format_map(&entries); assert_eq!( result, "dict.from_list([#(\"key\", 42), #(\"name\", \"Alice\")])" ); }
#[test] fn gleam_format_map_empty() { let formatter = GleamFormatter; let result = formatter.format_map(&[]); assert_eq!(result, "dict.from_list([])"); }
#[test] fn gleam_format_pid() { let formatter = GleamFormatter; let pid = eetf::Pid { node: eetf::Atom::from("node@host"), id: 123, serial: 456, creation: 0, }; let result = formatter.format_pid(&pid); assert_eq!(result, "//pid<node@host.123.456>"); }
#[test] fn gleam_format_reference() { let formatter = GleamFormatter; let reference = eetf::Reference { node: eetf::Atom::from("node@host"), id: vec![0, 123, 456, 789], creation: 0, }; let result = formatter.format_reference(&reference); assert_eq!(result, "//ref<node@host.0.123.456.789>"); }
#[test] fn gleam_format_full_term_integer() { let formatter = get_formatter(FormatterMode::Gleam); let term = Term::from(eetf::FixInteger::from(42)); assert_eq!(formatter.format_term(&term), "42"); }
#[test] fn gleam_format_full_term_negative_integer() { let formatter = get_formatter(FormatterMode::Gleam); let term = Term::from(eetf::FixInteger::from(-100)); assert_eq!(formatter.format_term(&term), "-100"); }
#[test] fn gleam_format_full_term_float() { let formatter = get_formatter(FormatterMode::Gleam); let term = Term::from(eetf::Float { value: 42.5 }); assert!(formatter.format_term(&term).starts_with("42.5")); }
#[test] fn gleam_format_full_term_binary() { let formatter = get_formatter(FormatterMode::Gleam); let binary = eetf::Binary::from(b"hello world".to_vec()); let term = Term::from(binary); assert_eq!(formatter.format_term(&term), "\"hello world\""); }
#[test] fn gleam_format_full_term_ok_tuple() { let formatter = get_formatter(FormatterMode::Gleam); let tuple = eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("ok")), Term::from(eetf::Binary::from(b"success".to_vec())), ]); let term = Term::from(tuple); assert_eq!(formatter.format_term(&term), "Ok(\"success\")"); }
#[test] fn gleam_format_full_term_error_tuple() { let formatter = get_formatter(FormatterMode::Gleam); let tuple = eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("error")), Term::from(eetf::Atom::from("timeout")), ]); let term = Term::from(tuple); assert_eq!(formatter.format_term(&term), "Error(timeout)"); }
#[test] fn gleam_format_full_term_regular_tuple() { let formatter = get_formatter(FormatterMode::Gleam); let tuple = eetf::Tuple::from(vec![ Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), Term::from(eetf::FixInteger::from(3)), ]); let term = Term::from(tuple); assert_eq!(formatter.format_term(&term), "#(1, 2, 3)"); }
#[test] fn gleam_format_full_term_list() { let formatter = get_formatter(FormatterMode::Gleam); let list = eetf::List::from(vec![ Term::from(eetf::FixInteger::from(10)), Term::from(eetf::FixInteger::from(20)), Term::from(eetf::FixInteger::from(30)), ]); let term = Term::from(list); assert_eq!(formatter.format_term(&term), "[10, 20, 30]"); }
#[test] fn gleam_format_full_term_map() { use std::collections::HashMap;
let formatter = get_formatter(FormatterMode::Gleam); let mut map_data: HashMap<Term, Term> = HashMap::new(); map_data.insert( Term::from(eetf::Binary::from(b"key1".to_vec())), Term::from(eetf::FixInteger::from(100)), ); map_data.insert( Term::from(eetf::Binary::from(b"key2".to_vec())), Term::from(eetf::FixInteger::from(200)), ); let map = eetf::Map::from(map_data); let term = Term::from(map); let result = formatter.format_term(&term); // Maps are unordered, so we check for both possible orderings assert!( result == "dict.from_list([#(\"key1\", 100), #(\"key2\", 200)])" || result == "dict.from_list([#(\"key2\", 200), #(\"key1\", 100)])" ); }
#[test] fn gleam_format_full_term_pid() { let formatter = get_formatter(FormatterMode::Gleam); let pid = eetf::Pid { node: eetf::Atom::from("gleam@localhost"), id: 42, serial: 7, creation: 0, }; let term = Term::from(pid); assert_eq!(formatter.format_term(&term), "//pid<gleam@localhost.42.7>"); }
#[test] fn gleam_format_full_term_reference() { let formatter = get_formatter(FormatterMode::Gleam); let reference = eetf::Reference { node: eetf::Atom::from("gleam@localhost"), id: vec![1, 2, 3], creation: 0, }; let term = Term::from(reference); assert_eq!(formatter.format_term(&term), "//ref<gleam@localhost.1.2.3>"); }
#[test] fn gleam_format_nested_ok_with_list() { let formatter = get_formatter(FormatterMode::Gleam); let inner_list = eetf::List::from(vec![ Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), ]); let tuple = eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("ok")), Term::from(inner_list), ]); let term = Term::from(tuple); assert_eq!(formatter.format_term(&term), "Ok([1, 2])"); }
#[test] fn gleam_format_nested_error_with_map() { use std::collections::HashMap;
let formatter = get_formatter(FormatterMode::Gleam); let mut map_data: HashMap<Term, Term> = HashMap::new(); map_data.insert( Term::from(eetf::Binary::from(b"code".to_vec())), Term::from(eetf::FixInteger::from(404)), ); let map = eetf::Map::from(map_data); let tuple = eetf::Tuple::from(vec![Term::from(eetf::Atom::from("error")), Term::from(map)]); let term = Term::from(tuple); assert_eq!( formatter.format_term(&term), "Error(dict.from_list([#(\"code\", 404)]))" ); }
#[test] fn gleam_try_format_result_tuple_ok() { let formatter = GleamFormatter; let elements = vec![ Term::from(eetf::Atom::from("ok")), Term::from(eetf::FixInteger::from(123)), ]; assert_eq!( formatter.try_format_result_tuple(&elements), Some("Ok(123)".to_string()) ); }
#[test] fn gleam_try_format_result_tuple_error() { let formatter = GleamFormatter; let elements = vec![ Term::from(eetf::Atom::from("error")), Term::from(eetf::Atom::from("bad")), ]; assert_eq!( formatter.try_format_result_tuple(&elements), Some("Error(bad)".to_string()) ); }
#[test] fn gleam_try_format_result_tuple_not_result() { let formatter = GleamFormatter; let elements = vec![ Term::from(eetf::Atom::from("data")), Term::from(eetf::FixInteger::from(123)), ]; assert_eq!(formatter.try_format_result_tuple(&elements), None); }
#[test] fn gleam_try_format_result_tuple_wrong_size() { let formatter = GleamFormatter; let elements = vec![ Term::from(eetf::Atom::from("ok")), Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), ]; assert_eq!(formatter.try_format_result_tuple(&elements), None); }
#[test] fn gleam_try_format_result_tuple_non_atom_tag() { let formatter = GleamFormatter; let elements = vec![ Term::from(eetf::FixInteger::from(123)), Term::from(eetf::FixInteger::from(456)), ]; assert_eq!(formatter.try_format_result_tuple(&elements), None); }
// ============================================ // Comprehensive LFE formatter tests (US-010) // ============================================
#[test] fn lfe_format_atom_simple() { let formatter = LfeFormatter; assert_eq!(formatter.format_atom("ok"), "'ok"); assert_eq!(formatter.format_atom("error"), "'error"); assert_eq!(formatter.format_atom("foo_bar"), "'foo_bar"); }
#[test] fn lfe_format_atom_with_spaces() { let formatter = LfeFormatter; assert_eq!(formatter.format_atom("with space"), "'|with space|"); assert_eq!(formatter.format_atom("hello world"), "'|hello world|"); }
#[test] fn lfe_format_atom_with_pipe() { let formatter = LfeFormatter; assert_eq!(formatter.format_atom("has|pipe"), "'|has|pipe|"); }
#[test] fn lfe_format_atom_empty() { let formatter = LfeFormatter; assert_eq!(formatter.format_atom(""), "'||"); }
#[test] fn lfe_format_tuple_simple() { let formatter = LfeFormatter; let elements = vec![ Term::from(eetf::Atom::from("ok")), Term::from(eetf::FixInteger::from(42)), ]; let result = formatter.format_tuple(&elements); assert_eq!(result, "#('ok 42)"); }
#[test] fn lfe_format_tuple_three_elements() { let formatter = LfeFormatter; let elements = vec![ Term::from(eetf::Atom::from("a")), Term::from(eetf::Atom::from("b")), Term::from(eetf::Atom::from("c")), ]; let result = formatter.format_tuple(&elements); assert_eq!(result, "#('a 'b 'c)"); }
#[test] fn lfe_format_tuple_empty() { let formatter = LfeFormatter; let result = formatter.format_tuple(&[]); assert_eq!(result, "#()"); }
#[test] fn lfe_format_list_integers() { let formatter = LfeFormatter; let elements = vec![ Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), Term::from(eetf::FixInteger::from(3)), ]; let result = formatter.format_list(&elements); assert_eq!(result, "'(1 2 3)"); }
#[test] fn lfe_format_list_empty() { let formatter = LfeFormatter; let nil = eetf::List::nil(); let term = Term::from(nil); let result = formatter.format_term(&term); assert_eq!(result, "()"); }
#[test] fn lfe_format_list_mixed() { let formatter = LfeFormatter; let elements = vec![ Term::from(eetf::Atom::from("ok")), Term::from(eetf::FixInteger::from(1)), Term::from(eetf::Binary::from(b"test".to_vec())), ]; let result = formatter.format_list(&elements); assert_eq!(result, "'('ok 1 \"test\")"); }
#[test] fn lfe_format_binary_text() { let formatter = LfeFormatter; let result = formatter.format_binary(b"hello"); assert_eq!(result, "\"hello\""); }
#[test] fn lfe_format_binary_empty() { let formatter = LfeFormatter; let result = formatter.format_binary(&[]); assert_eq!(result, "\"\""); }
#[test] fn lfe_format_binary_raw_bytes() { let formatter = LfeFormatter; let result = formatter.format_binary(&[1, 2, 255]); assert_eq!(result, "#B(1 2 255)"); }
#[test] fn lfe_format_binary_with_escapes() { let formatter = LfeFormatter; let result = formatter.format_binary(b"hello\nworld"); assert_eq!(result, "\"hello\\nworld\""); }
#[test] fn lfe_format_map_simple() { let formatter = LfeFormatter; let entries = [ ( Term::from(eetf::Atom::from("key")), Term::from(eetf::FixInteger::from(42)), ), ( Term::from(eetf::Atom::from("name")), Term::from(eetf::Binary::from(b"Alice".to_vec())), ), ]; let result = formatter.format_map(&entries); // Map entries are unordered assert!(result == "#m('key 42 'name \"Alice\")" || result == "#m('name \"Alice\" 'key 42)"); }
#[test] fn lfe_format_map_empty() { let formatter = LfeFormatter; let result = formatter.format_map(&[]); assert_eq!(result, "#m()"); }
#[test] fn lfe_format_pid() { let formatter = LfeFormatter; let pid = eetf::Pid { node: eetf::Atom::from("nonode@nohost"), id: 123, serial: 0, creation: 0, }; let result = formatter.format_pid(&pid); assert_eq!(result, "#Pid<nonode@nohost.123.0>"); }
#[test] fn lfe_format_reference() { let formatter = LfeFormatter; let reference = eetf::Reference { node: eetf::Atom::from("nonode@nohost"), id: vec![0, 123, 456, 789], creation: 0, }; let result = formatter.format_reference(&reference); assert_eq!(result, "#Ref<nonode@nohost.0.123.456.789>"); }
#[test] fn lfe_format_full_term_atom() { let formatter = get_formatter(FormatterMode::Lfe); let term = Term::from(eetf::Atom::from("ok")); assert_eq!(formatter.format_term(&term), "'ok"); }
#[test] fn lfe_format_full_term_integer() { let formatter = get_formatter(FormatterMode::Lfe); let term = Term::from(eetf::FixInteger::from(42)); assert_eq!(formatter.format_term(&term), "42"); }
#[test] fn lfe_format_full_term_negative_integer() { let formatter = get_formatter(FormatterMode::Lfe); let term = Term::from(eetf::FixInteger::from(-100)); assert_eq!(formatter.format_term(&term), "-100"); }
#[test] fn lfe_format_full_term_float() { let formatter = get_formatter(FormatterMode::Lfe); let term = Term::from(eetf::Float { value: 42.5 }); assert!(formatter.format_term(&term).starts_with("42.5")); }
#[test] fn lfe_format_full_term_binary() { let formatter = get_formatter(FormatterMode::Lfe); let binary = eetf::Binary::from(b"hello world".to_vec()); let term = Term::from(binary); assert_eq!(formatter.format_term(&term), "\"hello world\""); }
#[test] fn lfe_format_full_term_tuple() { let formatter = get_formatter(FormatterMode::Lfe); let tuple = eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("ok")), Term::from(eetf::FixInteger::from(42)), ]); let term = Term::from(tuple); assert_eq!(formatter.format_term(&term), "#('ok 42)"); }
#[test] fn lfe_format_full_term_list() { let formatter = get_formatter(FormatterMode::Lfe); let list = eetf::List::from(vec![ Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), Term::from(eetf::FixInteger::from(3)), ]); let term = Term::from(list); assert_eq!(formatter.format_term(&term), "'(1 2 3)"); }
#[test] fn lfe_format_full_term_map() { use std::collections::HashMap;
let formatter = get_formatter(FormatterMode::Lfe); let mut map_data: HashMap<Term, Term> = HashMap::new(); map_data.insert( Term::from(eetf::Atom::from("key")), Term::from(eetf::FixInteger::from(42)), ); let map = eetf::Map::from(map_data); let term = Term::from(map); assert_eq!(formatter.format_term(&term), "#m('key 42)"); }
#[test] fn lfe_format_full_term_pid() { let formatter = get_formatter(FormatterMode::Lfe); let pid = eetf::Pid { node: eetf::Atom::from("lfe@localhost"), id: 100, serial: 5, creation: 0, }; let term = Term::from(pid); assert_eq!(formatter.format_term(&term), "#Pid<lfe@localhost.100.5>"); }
#[test] fn lfe_format_full_term_reference() { let formatter = get_formatter(FormatterMode::Lfe); let reference = eetf::Reference { node: eetf::Atom::from("lfe@localhost"), id: vec![1, 2, 3], creation: 0, }; let term = Term::from(reference); assert_eq!(formatter.format_term(&term), "#Ref<lfe@localhost.1.2.3>"); }
#[test] fn lfe_format_nested_tuple_in_list() { let formatter = get_formatter(FormatterMode::Lfe); let tuple = eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("ok")), Term::from(eetf::FixInteger::from(1)), ]); let list = eetf::List::from(vec![Term::from(tuple)]); let term = Term::from(list); assert_eq!(formatter.format_term(&term), "'(#('ok 1))"); }
#[test] fn lfe_format_nested_list_in_tuple() { let formatter = get_formatter(FormatterMode::Lfe); let inner_list = eetf::List::from(vec![ Term::from(eetf::FixInteger::from(1)), Term::from(eetf::FixInteger::from(2)), ]); let tuple = eetf::Tuple::from(vec![ Term::from(eetf::Atom::from("data")), Term::from(inner_list), ]); let term = Term::from(tuple); assert_eq!(formatter.format_term(&term), "#('data '(1 2))"); }
#[test] fn lfe_format_complex_nested_structure() { use std::collections::HashMap;
let formatter = get_formatter(FormatterMode::Lfe);
// Create: #('ok #m('status 'success 'count 3)) let mut map_data: HashMap<Term, Term> = HashMap::new(); map_data.insert( Term::from(eetf::Atom::from("status")), Term::from(eetf::Atom::from("success")), ); map_data.insert( Term::from(eetf::Atom::from("count")), Term::from(eetf::FixInteger::from(3)), ); let map = eetf::Map::from(map_data); let tuple = eetf::Tuple::from(vec![Term::from(eetf::Atom::from("ok")), Term::from(map)]);
let term = Term::from(tuple); let result = formatter.format_term(&term);
// Check that it contains the expected elements (map order is not guaranteed) assert!(result.starts_with("#('ok #m(")); assert!(result.contains("'status 'success")); assert!(result.contains("'count 3")); assert!(result.ends_with("))")); }}