nilsandClaude Opus 5.5
d2e868293f
The check only looked at COLORTERM, but tcell also draws 24-bit color for terminals whose description has it (xterm-ghostty, xterm-kitty), so in Ghostty on macOS without COLORTERM the background was never used. Use tcell's rules, and always log which background is used and why. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019reK4DUGYqDUjniWYJvwUW
73 lines
2.7 KiB
Go
73 lines
2.7 KiB
Go
package ui
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import (
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"image/color"
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"strings"
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"testing"
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"github.com/gdamore/tcell/v2"
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"github.com/rivo/tview"
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)
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func TestParseTerminalAnswers(t *testing.T) {
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for _, tc := range []struct {
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name string
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got string
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graphics bool
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bg color.RGBA
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hasBG bool
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}{
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{"ghostty", "\x1b_Gi=31;OK\x1b\\\x1b]11;rgb:1e1e/1e1e/2e2e\x1b\\\x1b[?62;22c", true, color.RGBA{30, 30, 46, 255}, true},
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{"bel and two digits", "\x1b]11;rgb:ff/80/00\a\x1b[?1;2c", false, color.RGBA{255, 128, 0, 255}, true},
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{"one digit", "\x1b]11;rgb:f/0/8\x1b\\\x1b[?6c", false, color.RGBA{255, 0, 136, 255}, true},
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{"only device attributes", "\x1b[?1;2c", false, color.RGBA{}, false},
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{"garbage", "\x1b]11;rgb:zz/00/00\x1b\\\x1b[?6c", false, color.RGBA{}, false},
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{"nothing", "", false, color.RGBA{}, false},
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} {
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info := parseTerminalAnswers([]byte(tc.got))
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if info.graphics != tc.graphics || info.hasBG != tc.hasBG || info.bg != tc.bg {
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t.Errorf("%s: %+v", tc.name, info)
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}
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}
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}
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func TestUseTerminalBackground(t *testing.T) {
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// tcell's terminal database also reads these from the real environment
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// (and keeps what it added to an entry because of them, so the test uses
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// a terminal nothing else looks up).
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t.Setenv("COLORTERM", "")
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t.Setenv("TCELL_TRUECOLOR", "")
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defer func(old tcell.Color) { tview.Styles.PrimitiveBackgroundColor = old }(tview.Styles.PrimitiveBackgroundColor)
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env := func(m map[string]string) func(string) string { return func(k string) string { return m[k] } }
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dark := terminalInfo{bg: color.RGBA{30, 30, 46, 255}, hasBG: true}
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light := terminalInfo{bg: color.RGBA{239, 241, 245, 255}, hasBG: true}
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truecolor := env(map[string]string{"COLORTERM": "truecolor"})
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for _, tc := range []struct {
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name string
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info terminalInfo
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env func(string) string
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want bool
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}{
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{"dark background, true color", dark, truecolor, true},
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{"no true color", dark, env(map[string]string{"TERM": "vt100"}), false},
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{"ghostty without COLORTERM", dark, env(map[string]string{"TERM": "xterm-ghostty"}), true},
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{"true color disabled for tcell", dark, env(map[string]string{"TERM": "xterm-ghostty", "TCELL_TRUECOLOR": "disable"}), false},
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{"light background keeps the default", light, truecolor, false},
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{"no answer", terminalInfo{}, truecolor, false},
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} {
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tview.Styles.PrimitiveBackgroundColor = tcell.ColorBlack
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note := useTerminalBackground(tc.info, tc.env)
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if got := strings.Contains(note, "own color"); got != tc.want {
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t.Errorf("%s: %s", tc.name, note)
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}
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want := tcell.ColorBlack
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if tc.want {
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want = tcell.NewRGBColor(30, 30, 46)
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}
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if tview.Styles.PrimitiveBackgroundColor != want {
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t.Errorf("%s: background %v", tc.name, tview.Styles.PrimitiveBackgroundColor)
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}
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}
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}
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