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349 lines
14 KiB
TypeScript
349 lines
14 KiB
TypeScript
/**
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* Tests for keyboard input handling
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*/
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import assert from "node:assert";
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import { describe, it } from "node:test";
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import { matchesKey, parseKey, setKittyProtocolActive } from "../src/keys.js";
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describe("matchesKey", () => {
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describe("Kitty protocol with alternate keys (non-Latin layouts)", () => {
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// Kitty protocol flag 4 (Report alternate keys) sends:
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// CSI codepoint:shifted:base ; modifier:event u
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// Where base is the key in standard PC-101 layout
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it("should match Ctrl+c when pressing Ctrl+С (Cyrillic) with base layout key", () => {
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setKittyProtocolActive(true);
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// Cyrillic 'с' = codepoint 1089, Latin 'c' = codepoint 99
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// Format: CSI 1089::99;5u (codepoint::base;modifier with ctrl=4, +1=5)
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const cyrillicCtrlC = "\x1b[1089::99;5u";
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assert.strictEqual(matchesKey(cyrillicCtrlC, "ctrl+c"), true);
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setKittyProtocolActive(false);
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});
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it("should match Ctrl+d when pressing Ctrl+В (Cyrillic) with base layout key", () => {
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setKittyProtocolActive(true);
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// Cyrillic 'в' = codepoint 1074, Latin 'd' = codepoint 100
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const cyrillicCtrlD = "\x1b[1074::100;5u";
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assert.strictEqual(matchesKey(cyrillicCtrlD, "ctrl+d"), true);
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setKittyProtocolActive(false);
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});
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it("should match Ctrl+z when pressing Ctrl+Я (Cyrillic) with base layout key", () => {
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setKittyProtocolActive(true);
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// Cyrillic 'я' = codepoint 1103, Latin 'z' = codepoint 122
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const cyrillicCtrlZ = "\x1b[1103::122;5u";
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assert.strictEqual(matchesKey(cyrillicCtrlZ, "ctrl+z"), true);
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setKittyProtocolActive(false);
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});
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it("should match Ctrl+Shift+p with base layout key", () => {
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setKittyProtocolActive(true);
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// Cyrillic 'з' = codepoint 1079, Latin 'p' = codepoint 112
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// ctrl=4, shift=1, +1 = 6
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const cyrillicCtrlShiftP = "\x1b[1079::112;6u";
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assert.strictEqual(matchesKey(cyrillicCtrlShiftP, "ctrl+shift+p"), true);
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setKittyProtocolActive(false);
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});
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it("should still match direct codepoint when no base layout key", () => {
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setKittyProtocolActive(true);
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// Latin ctrl+c without base layout key (terminal doesn't support flag 4)
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const latinCtrlC = "\x1b[99;5u";
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assert.strictEqual(matchesKey(latinCtrlC, "ctrl+c"), true);
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setKittyProtocolActive(false);
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});
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it("should handle shifted key in format", () => {
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setKittyProtocolActive(true);
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// Format with shifted key: CSI codepoint:shifted:base;modifier u
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// Latin 'c' with shifted 'C' (67) and base 'c' (99)
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const shiftedKey = "\x1b[99:67:99;2u"; // shift modifier = 1, +1 = 2
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assert.strictEqual(matchesKey(shiftedKey, "shift+c"), true);
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setKittyProtocolActive(false);
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});
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it("should handle event type in format", () => {
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setKittyProtocolActive(true);
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// Format with event type: CSI codepoint::base;modifier:event u
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// Cyrillic ctrl+c release event (event type 3)
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const releaseEvent = "\x1b[1089::99;5:3u";
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assert.strictEqual(matchesKey(releaseEvent, "ctrl+c"), true);
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setKittyProtocolActive(false);
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});
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it("should handle full format with shifted key, base key, and event type", () => {
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setKittyProtocolActive(true);
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// Full format: CSI codepoint:shifted:base;modifier:event u
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// Cyrillic 'С' (shifted) with base 'c', Ctrl+Shift pressed, repeat event
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// Cyrillic 'с' = 1089, Cyrillic 'С' = 1057, Latin 'c' = 99
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// ctrl=4, shift=1, +1 = 6, repeat event = 2
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const fullFormat = "\x1b[1089:1057:99;6:2u";
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assert.strictEqual(matchesKey(fullFormat, "ctrl+shift+c"), true);
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setKittyProtocolActive(false);
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});
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it("should prefer codepoint for Latin letters even when base layout differs", () => {
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setKittyProtocolActive(true);
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// Dvorak Ctrl+K reports codepoint 'k' (107) and base layout 'v' (118)
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const dvorakCtrlK = "\x1b[107::118;5u";
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assert.strictEqual(matchesKey(dvorakCtrlK, "ctrl+k"), true);
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assert.strictEqual(matchesKey(dvorakCtrlK, "ctrl+v"), false);
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setKittyProtocolActive(false);
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});
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it("should prefer codepoint for symbol keys even when base layout differs", () => {
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setKittyProtocolActive(true);
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// Dvorak Ctrl+/ reports codepoint '/' (47) and base layout '[' (91)
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const dvorakCtrlSlash = "\x1b[47::91;5u";
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assert.strictEqual(matchesKey(dvorakCtrlSlash, "ctrl+/"), true);
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assert.strictEqual(matchesKey(dvorakCtrlSlash, "ctrl+["), false);
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setKittyProtocolActive(false);
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});
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it("should not match wrong key even with base layout", () => {
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setKittyProtocolActive(true);
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// Cyrillic ctrl+с with base 'c' should NOT match ctrl+d
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const cyrillicCtrlC = "\x1b[1089::99;5u";
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assert.strictEqual(matchesKey(cyrillicCtrlC, "ctrl+d"), false);
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setKittyProtocolActive(false);
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});
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it("should not match wrong modifiers even with base layout", () => {
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setKittyProtocolActive(true);
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// Cyrillic ctrl+с should NOT match ctrl+shift+c
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const cyrillicCtrlC = "\x1b[1089::99;5u";
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assert.strictEqual(matchesKey(cyrillicCtrlC, "ctrl+shift+c"), false);
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setKittyProtocolActive(false);
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});
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});
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describe("Legacy key matching", () => {
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it("should match legacy Ctrl+c", () => {
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setKittyProtocolActive(false);
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// Ctrl+c sends ASCII 3 (ETX)
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assert.strictEqual(matchesKey("\x03", "ctrl+c"), true);
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});
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it("should match legacy Ctrl+d", () => {
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setKittyProtocolActive(false);
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// Ctrl+d sends ASCII 4 (EOT)
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assert.strictEqual(matchesKey("\x04", "ctrl+d"), true);
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});
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it("should match escape key", () => {
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assert.strictEqual(matchesKey("\x1b", "escape"), true);
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});
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it("should match legacy linefeed as enter", () => {
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setKittyProtocolActive(false);
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assert.strictEqual(matchesKey("\n", "enter"), true);
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assert.strictEqual(parseKey("\n"), "enter");
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});
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it("should treat linefeed as shift+enter when kitty active", () => {
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setKittyProtocolActive(true);
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assert.strictEqual(matchesKey("\n", "shift+enter"), true);
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assert.strictEqual(matchesKey("\n", "enter"), false);
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assert.strictEqual(parseKey("\n"), "shift+enter");
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setKittyProtocolActive(false);
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});
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it("should parse ctrl+space", () => {
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setKittyProtocolActive(false);
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assert.strictEqual(matchesKey("\x00", "ctrl+space"), true);
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assert.strictEqual(parseKey("\x00"), "ctrl+space");
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});
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it("should match legacy Ctrl+symbol", () => {
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setKittyProtocolActive(false);
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// Ctrl+\ sends ASCII 28 (File Separator) in legacy terminals
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assert.strictEqual(matchesKey("\x1c", "ctrl+\\"), true);
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assert.strictEqual(parseKey("\x1c"), "ctrl+\\");
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// Ctrl+] sends ASCII 29 (Group Separator) in legacy terminals
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assert.strictEqual(matchesKey("\x1d", "ctrl+]"), true);
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assert.strictEqual(parseKey("\x1d"), "ctrl+]");
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// Ctrl+_ sends ASCII 31 (Unit Separator) in legacy terminals
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// Ctrl+- is on the same physical key on US keyboards
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assert.strictEqual(matchesKey("\x1f", "ctrl+_"), true);
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assert.strictEqual(matchesKey("\x1f", "ctrl+-"), true);
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assert.strictEqual(parseKey("\x1f"), "ctrl+-");
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});
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it("should match legacy Ctrl+Alt+symbol", () => {
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setKittyProtocolActive(false);
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// Ctrl+Alt+[ sends ESC followed by ESC (Ctrl+[ = ESC)
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assert.strictEqual(matchesKey("\x1b\x1b", "ctrl+alt+["), true);
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assert.strictEqual(parseKey("\x1b\x1b"), "ctrl+alt+[");
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// Ctrl+Alt+\ sends ESC followed by ASCII 28
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assert.strictEqual(matchesKey("\x1b\x1c", "ctrl+alt+\\"), true);
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assert.strictEqual(parseKey("\x1b\x1c"), "ctrl+alt+\\");
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// Ctrl+Alt+] sends ESC followed by ASCII 29
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assert.strictEqual(matchesKey("\x1b\x1d", "ctrl+alt+]"), true);
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assert.strictEqual(parseKey("\x1b\x1d"), "ctrl+alt+]");
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// Ctrl+_ sends ASCII 31 (Unit Separator) in legacy terminals
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// Ctrl+- is on the same physical key on US keyboards
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assert.strictEqual(matchesKey("\x1b\x1f", "ctrl+alt+_"), true);
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assert.strictEqual(matchesKey("\x1b\x1f", "ctrl+alt+-"), true);
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assert.strictEqual(parseKey("\x1b\x1f"), "ctrl+alt+-");
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});
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it("should parse legacy alt-prefixed sequences when kitty inactive", () => {
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setKittyProtocolActive(false);
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assert.strictEqual(matchesKey("\x1b ", "alt+space"), true);
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assert.strictEqual(parseKey("\x1b "), "alt+space");
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assert.strictEqual(matchesKey("\x1b\b", "alt+backspace"), true);
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assert.strictEqual(parseKey("\x1b\b"), "alt+backspace");
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assert.strictEqual(matchesKey("\x1b\x03", "ctrl+alt+c"), true);
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assert.strictEqual(parseKey("\x1b\x03"), "ctrl+alt+c");
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assert.strictEqual(matchesKey("\x1bB", "alt+left"), true);
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assert.strictEqual(parseKey("\x1bB"), "alt+left");
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assert.strictEqual(matchesKey("\x1bF", "alt+right"), true);
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assert.strictEqual(parseKey("\x1bF"), "alt+right");
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assert.strictEqual(matchesKey("\x1ba", "alt+a"), true);
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assert.strictEqual(parseKey("\x1ba"), "alt+a");
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assert.strictEqual(matchesKey("\x1by", "alt+y"), true);
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assert.strictEqual(parseKey("\x1by"), "alt+y");
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assert.strictEqual(matchesKey("\x1bz", "alt+z"), true);
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assert.strictEqual(parseKey("\x1bz"), "alt+z");
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setKittyProtocolActive(true);
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assert.strictEqual(matchesKey("\x1b ", "alt+space"), false);
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assert.strictEqual(parseKey("\x1b "), undefined);
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assert.strictEqual(matchesKey("\x1b\b", "alt+backspace"), true);
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assert.strictEqual(parseKey("\x1b\b"), "alt+backspace");
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assert.strictEqual(matchesKey("\x1b\x03", "ctrl+alt+c"), false);
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assert.strictEqual(parseKey("\x1b\x03"), undefined);
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assert.strictEqual(matchesKey("\x1bB", "alt+left"), false);
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assert.strictEqual(parseKey("\x1bB"), undefined);
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assert.strictEqual(matchesKey("\x1bF", "alt+right"), false);
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assert.strictEqual(parseKey("\x1bF"), undefined);
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assert.strictEqual(matchesKey("\x1ba", "alt+a"), false);
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assert.strictEqual(parseKey("\x1ba"), undefined);
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assert.strictEqual(matchesKey("\x1by", "alt+y"), false);
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assert.strictEqual(parseKey("\x1by"), undefined);
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setKittyProtocolActive(false);
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});
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it("should match arrow keys", () => {
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assert.strictEqual(matchesKey("\x1b[A", "up"), true);
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assert.strictEqual(matchesKey("\x1b[B", "down"), true);
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assert.strictEqual(matchesKey("\x1b[C", "right"), true);
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assert.strictEqual(matchesKey("\x1b[D", "left"), true);
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});
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it("should match SS3 arrows and home/end", () => {
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assert.strictEqual(matchesKey("\x1bOA", "up"), true);
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assert.strictEqual(matchesKey("\x1bOB", "down"), true);
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assert.strictEqual(matchesKey("\x1bOC", "right"), true);
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assert.strictEqual(matchesKey("\x1bOD", "left"), true);
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assert.strictEqual(matchesKey("\x1bOH", "home"), true);
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assert.strictEqual(matchesKey("\x1bOF", "end"), true);
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});
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it("should match legacy function keys and clear", () => {
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assert.strictEqual(matchesKey("\x1bOP", "f1"), true);
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assert.strictEqual(matchesKey("\x1b[24~", "f12"), true);
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assert.strictEqual(matchesKey("\x1b[E", "clear"), true);
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});
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it("should match alt+arrows", () => {
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assert.strictEqual(matchesKey("\x1bp", "alt+up"), true);
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assert.strictEqual(matchesKey("\x1bp", "up"), false);
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});
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it("should match rxvt modifier sequences", () => {
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assert.strictEqual(matchesKey("\x1b[a", "shift+up"), true);
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assert.strictEqual(matchesKey("\x1bOa", "ctrl+up"), true);
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assert.strictEqual(matchesKey("\x1b[2$", "shift+insert"), true);
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assert.strictEqual(matchesKey("\x1b[2^", "ctrl+insert"), true);
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assert.strictEqual(matchesKey("\x1b[7$", "shift+home"), true);
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});
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});
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});
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describe("parseKey", () => {
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describe("Kitty protocol with alternate keys", () => {
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it("should return Latin key name when base layout key is present", () => {
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setKittyProtocolActive(true);
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// Cyrillic ctrl+с with base layout 'c'
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const cyrillicCtrlC = "\x1b[1089::99;5u";
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assert.strictEqual(parseKey(cyrillicCtrlC), "ctrl+c");
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setKittyProtocolActive(false);
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});
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it("should prefer codepoint for Latin letters when base layout differs", () => {
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setKittyProtocolActive(true);
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// Dvorak Ctrl+K reports codepoint 'k' (107) and base layout 'v' (118)
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const dvorakCtrlK = "\x1b[107::118;5u";
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assert.strictEqual(parseKey(dvorakCtrlK), "ctrl+k");
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setKittyProtocolActive(false);
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});
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it("should prefer codepoint for symbol keys when base layout differs", () => {
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setKittyProtocolActive(true);
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// Dvorak Ctrl+/ reports codepoint '/' (47) and base layout '[' (91)
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const dvorakCtrlSlash = "\x1b[47::91;5u";
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assert.strictEqual(parseKey(dvorakCtrlSlash), "ctrl+/");
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setKittyProtocolActive(false);
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});
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it("should return key name from codepoint when no base layout", () => {
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setKittyProtocolActive(true);
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const latinCtrlC = "\x1b[99;5u";
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assert.strictEqual(parseKey(latinCtrlC), "ctrl+c");
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setKittyProtocolActive(false);
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});
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it("should ignore Kitty CSI-u with unsupported modifiers", () => {
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setKittyProtocolActive(true);
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assert.strictEqual(parseKey("\x1b[99;9u"), undefined);
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setKittyProtocolActive(false);
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});
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});
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describe("Legacy key parsing", () => {
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it("should parse legacy Ctrl+letter", () => {
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setKittyProtocolActive(false);
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assert.strictEqual(parseKey("\x03"), "ctrl+c");
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assert.strictEqual(parseKey("\x04"), "ctrl+d");
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});
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it("should parse special keys", () => {
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assert.strictEqual(parseKey("\x1b"), "escape");
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assert.strictEqual(parseKey("\t"), "tab");
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assert.strictEqual(parseKey("\r"), "enter");
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assert.strictEqual(parseKey("\n"), "enter");
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assert.strictEqual(parseKey("\x00"), "ctrl+space");
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assert.strictEqual(parseKey(" "), "space");
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});
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it("should parse arrow keys", () => {
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assert.strictEqual(parseKey("\x1b[A"), "up");
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assert.strictEqual(parseKey("\x1b[B"), "down");
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assert.strictEqual(parseKey("\x1b[C"), "right");
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assert.strictEqual(parseKey("\x1b[D"), "left");
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});
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it("should parse SS3 arrows and home/end", () => {
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assert.strictEqual(parseKey("\x1bOA"), "up");
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assert.strictEqual(parseKey("\x1bOB"), "down");
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assert.strictEqual(parseKey("\x1bOC"), "right");
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assert.strictEqual(parseKey("\x1bOD"), "left");
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assert.strictEqual(parseKey("\x1bOH"), "home");
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assert.strictEqual(parseKey("\x1bOF"), "end");
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});
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it("should parse legacy function and modifier sequences", () => {
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assert.strictEqual(parseKey("\x1bOP"), "f1");
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assert.strictEqual(parseKey("\x1b[24~"), "f12");
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assert.strictEqual(parseKey("\x1b[E"), "clear");
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assert.strictEqual(parseKey("\x1b[2^"), "ctrl+insert");
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assert.strictEqual(parseKey("\x1bp"), "alt+up");
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});
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it("should parse double bracket pageUp", () => {
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assert.strictEqual(parseKey("\x1b[[5~"), "pageUp");
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});
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});
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});
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