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import ( "strings" "testing")
func TestAnsiState_SingleLine(t *testing.T) { tests := []struct { name string input string wantContain string // substring expected in rendered HTML }{ {"bold", "\033[1mBold\033[0m", "term-fg1"}, {"red", "\033[31mRed\033[0m", "term-fg31"}, {"green", "\033[32mGreen\033[0m", "term-fg32"}, {"yellow", "\033[33mYellow\033[0m", "term-fg33"}, {"blue", "\033[34mBlue\033[0m", "term-fg34"}, {"magenta", "\033[35mMagenta\033[0m", "term-fg35"}, {"cyan", "\033[36mCyan\033[0m", "term-fg36"}, {"bold green", "\033[1;32mBold Green\033[0m", "term-fg32"}, {"red background", "\033[41m Red background \033[0m", "term-bg41"}, {"256 orange", "\033[38;5;208mANSI 256 orange\033[0m", "term-fgx208"}, // true color is stripped {"true color", "\033[38;2;255;100;0mTrue color orange\033[0m", "True color orange"}, } for _, tt := range tests { t.Run(tt.name, func(t *testing.T) { a := NewAnsiState() got := string(a.Render(tt.input)) t.Logf("%s → %s", tt.name, got) if !strings.Contains(got, tt.wantContain) { t.Errorf("expected output to contain %q, got: %s", tt.wantContain, got) } }) }}
func TestAnsiState_MultiLine_CarryOver(t *testing.T) { // red opened on line 1 without reset — line 2 should carry it over. a := NewAnsiState()
line1 := a.Render("\033[31mstart of red") if !strings.Contains(string(line1), "term-fg31") { t.Errorf("line1: expected term-fg31, got: %s", line1) }
line2 := a.Render("still red\033[0m") t.Logf("line2 → %s", line2) if !strings.Contains(string(line2), "term-fg31") { t.Errorf("line2: expected carry-over term-fg31, got: %s", line2) }
// after the reset, line 3 should have no colour. line3 := a.Render("plain text") t.Logf("line3 → %s", line3) if strings.Contains(string(line3), "term-fg31") { t.Errorf("line3: expected no term-fg31 after reset, got: %s", line3) }}
func TestAnsiState_MultiLine_StackedSequences(t *testing.T) { // bold opened line 1, red added line 2 — both should carry to line 2. a := NewAnsiState()
a.Render("\033[1mBold opened")
line2 := a.Render("\033[31mRed added") t.Logf("line2 → %s", line2) if !strings.Contains(string(line2), "term-fg1") { t.Errorf("line2: expected carried-over term-fg1, got: %s", line2) } if !strings.Contains(string(line2), "term-fg31") { t.Errorf("line2: expected term-fg31, got: %s", line2) }
a.Render("\033[0mReset")
line4 := a.Render("plain") t.Logf("line4 → %s", line4) if strings.Contains(string(line4), "term-") { t.Errorf("line4: expected no term- classes after reset, got: %s", line4) }}
func TestAnsiState_Reset_ClearsStack(t *testing.T) { a := NewAnsiState() a.Render("\033[31m\033[1m\033[33mMultiple opens") if len(a.stack) != 3 { t.Errorf("expected stack depth 3, got %d", len(a.stack)) } a.Render("\033[0mReset line") if len(a.stack) != 0 { t.Errorf("expected empty stack after reset, got %d: %v", len(a.stack), a.stack) }}
func TestAnsiState_NoAnsi(t *testing.T) { a := NewAnsiState() got := string(a.Render("plain text no escapes")) t.Logf("got → %s", got) if strings.Contains(got, "term-") { t.Errorf("expected no term- classes for plain text, got: %s", got) }}
func TestAnsiState_Sanitizer_XSS(t *testing.T) { tests := []struct { name string input string shuoldBeAbsent string // must not appear literally (unescaped) in output }{ { name: "script tag not executable", input: "<script>alert(1)</script>", shuoldBeAbsent: "<script>", }, { name: "img onerror not executable", input: `<img src=x onerror="alert(1)">`, shuoldBeAbsent: "<img", }, { name: "ansi with embedded script not executable", input: "\033[31m<script>alert(1)</script>\033[0m", shuoldBeAbsent: "<script>", }, { name: "only term- classes survive on span", input: "\033[31mcolored\033[0m", shuoldBeAbsent: "onclick", }, } for _, tt := range tests { t.Run(tt.name, func(t *testing.T) { a := NewAnsiState() got := string(a.Render(tt.input)) t.Logf("%s → %s", tt.name, got) if strings.Contains(got, tt.shuoldBeAbsent) { t.Errorf("expected %q to be absent (unescaped), got: %s", tt.shuoldBeAbsent, got) } }) }}