From f0566f31950fbd09e189b4b50d86806ddfc9d913 Mon Sep 17 00:00:00 2001
From: theMackabu <theMackabu@gmail.com>
Date: Sun, 29 Mar 2026 18:55:28 -0700
Subject: [PATCH] add tests for importing

---
 .../import_dynamic_filename_capture_child.mjs |  1 +
 ...port_dynamic_filename_capture_exporter.mjs |  4 ++++
 ...import_dynamic_filename_capture_parent.mjs | 19 ++++++++++++++++
 ...import_dynamic_filename_capture_runner.mjs | 14 ++++++++++++
 tests/import_dynamic_rsc_path_runner.mjs      | 14 ++++++++++++
 tests/import_meta_filename_capture.mjs        | 22 +++++++++++++++++++
 tests/rsc/index.js                            |  1 +
 tests/ssr/index.js                            |  4 ++++
 8 files changed, 79 insertions(+)
 create mode 100644 tests/import_dynamic_filename_capture_child.mjs
 create mode 100644 tests/import_dynamic_filename_capture_exporter.mjs
 create mode 100644 tests/import_dynamic_filename_capture_parent.mjs
 create mode 100644 tests/import_dynamic_filename_capture_runner.mjs
 create mode 100644 tests/import_dynamic_rsc_path_runner.mjs
 create mode 100644 tests/import_meta_filename_capture.mjs
 create mode 100644 tests/rsc/index.js
 create mode 100644 tests/ssr/index.js

diff --git a/tests/import_dynamic_filename_capture_child.mjs b/tests/import_dynamic_filename_capture_child.mjs
new file mode 100644
index 0000000..5abfab8
--- /dev/null
+++ b/tests/import_dynamic_filename_capture_child.mjs
@@ -0,0 +1 @@
+export const childFilename = import.meta.filename;
diff --git a/tests/import_dynamic_filename_capture_exporter.mjs b/tests/import_dynamic_filename_capture_exporter.mjs
new file mode 100644
index 0000000..00be750
--- /dev/null
+++ b/tests/import_dynamic_filename_capture_exporter.mjs
@@ -0,0 +1,4 @@
+export async function loadChildLater() {
+  const child = await import('./import_dynamic_filename_capture_child.mjs');
+  return child.childFilename;
+}
diff --git a/tests/import_dynamic_filename_capture_parent.mjs b/tests/import_dynamic_filename_capture_parent.mjs
new file mode 100644
index 0000000..1ff8285
--- /dev/null
+++ b/tests/import_dynamic_filename_capture_parent.mjs
@@ -0,0 +1,19 @@
+function assert(condition, message) {
+  if (!condition) throw new Error(message);
+}
+
+const topFilename = import.meta.filename;
+
+async function loadChild() {
+  return await import('./import_dynamic_filename_capture_child.mjs');
+}
+
+const child = await loadChild();
+
+assert(import.meta.filename === topFilename, 'parent import.meta.filename drifted');
+assert(
+  child.childFilename.endsWith('/tests/import_dynamic_filename_capture_child.mjs'),
+  `dynamic import resolved from wrong base: ${child.childFilename}`
+);
+
+console.log(`import.dynamic.filename.capture:${topFilename}`);
diff --git a/tests/import_dynamic_filename_capture_runner.mjs b/tests/import_dynamic_filename_capture_runner.mjs
new file mode 100644
index 0000000..4c9c52e
--- /dev/null
+++ b/tests/import_dynamic_filename_capture_runner.mjs
@@ -0,0 +1,14 @@
+function assert(condition, message) {
+  if (!condition) throw new Error(message);
+}
+
+import { loadChildLater } from './import_dynamic_filename_capture_exporter.mjs';
+
+const childFilename = await loadChildLater();
+
+assert(
+  childFilename.endsWith('/tests/import_dynamic_filename_capture_child.mjs'),
+  `late dynamic import resolved from wrong base: ${childFilename}`
+);
+
+console.log(`import.dynamic.filename.late:${childFilename}`);
diff --git a/tests/import_dynamic_rsc_path_runner.mjs b/tests/import_dynamic_rsc_path_runner.mjs
new file mode 100644
index 0000000..8eb1b7d
--- /dev/null
+++ b/tests/import_dynamic_rsc_path_runner.mjs
@@ -0,0 +1,14 @@
+function assert(condition, message) {
+  if (!condition) throw new Error(message);
+}
+
+import { loadRscIndexLater } from './ssr/index.js';
+
+const filename = await loadRscIndexLater();
+
+assert(
+  filename.endsWith('/tests/rsc/index.js'),
+  `late dynamic import resolved from wrong base: ${filename}`
+);
+
+console.log(`import.dynamic.rsc.path:${filename}`);
diff --git a/tests/import_meta_filename_capture.mjs b/tests/import_meta_filename_capture.mjs
new file mode 100644
index 0000000..e014f82
--- /dev/null
+++ b/tests/import_meta_filename_capture.mjs
@@ -0,0 +1,22 @@
+function assert(condition, message) {
+  if (!condition) throw new Error(message);
+}
+
+const topFilename = import.meta.filename;
+
+function nestedFilename() {
+  return import.meta.filename;
+}
+
+async function asyncFilename() {
+  await 0;
+  return import.meta.filename;
+}
+
+const nested = nestedFilename();
+const asyncValue = await asyncFilename();
+
+assert(nested === topFilename, `nested import.meta.filename drifted: ${nested} !== ${topFilename}`);
+assert(asyncValue === topFilename, `async import.meta.filename drifted: ${asyncValue} !== ${topFilename}`);
+
+console.log(`import.meta.filename.capture:${topFilename}`);
diff --git a/tests/rsc/index.js b/tests/rsc/index.js
new file mode 100644
index 0000000..587b050
--- /dev/null
+++ b/tests/rsc/index.js
@@ -0,0 +1 @@
+export const marker = import.meta.filename;
diff --git a/tests/ssr/index.js b/tests/ssr/index.js
new file mode 100644
index 0000000..17152b4
--- /dev/null
+++ b/tests/ssr/index.js
@@ -0,0 +1,4 @@
+export async function loadRscIndexLater() {
+  const mod = await import('../rsc/index.js');
+  return mod.marker;
+}
-- 
2.51.2