package fzf import ( "fmt" "testing" ) func TestExtractColor(t *testing.T) { assert := func(offset ansiOffset, b int32, e int32, fg int, bg int, bold bool) { if offset.offset[0] != b || offset.offset[1] != e || offset.color.fg != fg || offset.color.bg != bg || offset.color.bold != bold { t.Error(offset, b, e, fg, bg, bold) } } src := "hello world" var state *ansiState clean := "\x1b[0m" check := func(assertion func(ansiOffsets []ansiOffset, state *ansiState)) { output, ansiOffsets, newState := extractColor(&src, state) state = newState if *output != "hello world" { t.Errorf("Invalid output: {}", output) } fmt.Println(src, ansiOffsets, clean) assertion(ansiOffsets, state) } check(func(offsets []ansiOffset, state *ansiState) { if len(offsets) > 0 { t.Fail() } }) state = nil src = "\x1b[0mhello world" check(func(offsets []ansiOffset, state *ansiState) { if len(offsets) > 0 { t.Fail() } }) state = nil src = "\x1b[1mhello world" check(func(offsets []ansiOffset, state *ansiState) { if len(offsets) != 1 { t.Fail() } assert(offsets[0], 0, 11, -1, -1, true) }) state = nil src = "\x1b[1mhello \x1b[mworld" check(func(offsets []ansiOffset, state *ansiState) { if len(offsets) != 1 { t.Fail() } assert(offsets[0], 0, 6, -1, -1, true) }) state = nil src = "\x1b[1mhello \x1b[Kworld" check(func(offsets []ansiOffset, state *ansiState) { if len(offsets) != 1 { t.Fail() } assert(offsets[0], 0, 11, -1, -1, true) }) state = nil src = "hello \x1b[34;45;1mworld" check(func(offsets []ansiOffset, state *ansiState) { if len(offsets) != 1 { t.Fail() } assert(offsets[0], 6, 11, 4, 5, true) }) state = nil src = "hello \x1b[34;45;1mwor\x1b[34;45;1mld" check(func(offsets []ansiOffset, state *ansiState) { if len(offsets) != 1 { t.Fail() } assert(offsets[0], 6, 11, 4, 5, true) }) state = nil src = "hello \x1b[34;45;1mwor\x1b[0mld" check(func(offsets []ansiOffset, state *ansiState) { if len(offsets) != 1 { t.Fail() } assert(offsets[0], 6, 9, 4, 5, true) }) state = nil src = "hello \x1b[34;48;5;233;1mwo\x1b[38;5;161mr\x1b[0ml\x1b[38;5;161md" check(func(offsets []ansiOffset, state *ansiState) { if len(offsets) != 3 { t.Fail() } assert(offsets[0], 6, 8, 4, 233, true) assert(offsets[1], 8, 9, 161, 233, true) assert(offsets[2], 10, 11, 161, -1, false) }) // {38,48};5;{38,48} state = nil src = "hello \x1b[38;5;38;48;5;48;1mwor\x1b[38;5;48;48;5;38ml\x1b[0md" check(func(offsets []ansiOffset, state *ansiState) { if len(offsets) != 2 { t.Fail() } assert(offsets[0], 6, 9, 38, 48, true) assert(offsets[1], 9, 10, 48, 38, true) }) src = "hello \x1b[32;1mworld" check(func(offsets []ansiOffset, state *ansiState) { if len(offsets) != 1 { t.Fail() } if state.fg != 2 || state.bg != -1 || !state.bold { t.Fail() } assert(offsets[0], 6, 11, 2, -1, true) }) src = "hello world" check(func(offsets []ansiOffset, state *ansiState) { if len(offsets) != 1 { t.Fail() } if state.fg != 2 || state.bg != -1 || !state.bold { t.Fail() } assert(offsets[0], 0, 11, 2, -1, true) }) src = "hello \x1b[0;38;5;200;48;5;100mworld" check(func(offsets []ansiOffset, state *ansiState) { if len(offsets) != 2 { t.Fail() } if state.fg != 200 || state.bg != 100 || state.bold { t.Fail() } assert(offsets[0], 0, 6, 2, -1, true) assert(offsets[1], 6, 11, 200, 100, false) }) }