mirror of
https://github.com/getcompanion-ai/co-mono.git
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4c2d78f6cb
* feat(tui): extract KillRing and UndoStack, add to Input Extract kill ring and undo logic from Editor into reusable classes: - KillRing: ring buffer with accumulation for consecutive kills - UndoStack<S>: generic stack with clone-on-push semantics Refactor Editor to use both classes. Add kill ring (kill/yank/ yank-pop), undo with coalescing, and deleteWordForward to Input. * feat(tui): extract handleBackspace() and handleForwardDelete()
530 lines
16 KiB
TypeScript
530 lines
16 KiB
TypeScript
import assert from "node:assert";
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import { describe, it } from "node:test";
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import { Input } from "../src/components/input.js";
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describe("Input component", () => {
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it("submits value including backslash on Enter", () => {
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const input = new Input();
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let submitted: string | undefined;
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input.onSubmit = (value) => {
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submitted = value;
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};
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// Type hello, then backslash, then Enter
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input.handleInput("h");
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input.handleInput("e");
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input.handleInput("l");
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input.handleInput("l");
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input.handleInput("o");
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input.handleInput("\\");
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input.handleInput("\r");
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// Input is single-line, no backslash+Enter workaround
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assert.strictEqual(submitted, "hello\\");
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});
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it("inserts backslash as regular character", () => {
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const input = new Input();
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input.handleInput("\\");
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input.handleInput("x");
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assert.strictEqual(input.getValue(), "\\x");
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});
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describe("Kill ring", () => {
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it("Ctrl+W saves deleted text to kill ring and Ctrl+Y yanks it", () => {
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const input = new Input();
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input.setValue("foo bar baz");
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// Move cursor to end
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // Ctrl+W - deletes "baz"
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assert.strictEqual(input.getValue(), "foo bar ");
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// Move to beginning and yank
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input.handleInput("\x01"); // Ctrl+A
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input.handleInput("\x19"); // Ctrl+Y
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assert.strictEqual(input.getValue(), "bazfoo bar ");
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});
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it("Ctrl+U saves deleted text to kill ring", () => {
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const input = new Input();
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input.setValue("hello world");
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// Move cursor to after "hello "
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input.handleInput("\x01"); // Ctrl+A
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for (let i = 0; i < 6; i++) input.handleInput("\x1b[C");
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input.handleInput("\x15"); // Ctrl+U - deletes "hello "
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assert.strictEqual(input.getValue(), "world");
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input.handleInput("\x19"); // Ctrl+Y
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assert.strictEqual(input.getValue(), "hello world");
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});
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it("Ctrl+K saves deleted text to kill ring", () => {
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const input = new Input();
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input.setValue("hello world");
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input.handleInput("\x01"); // Ctrl+A
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input.handleInput("\x0b"); // Ctrl+K - deletes "hello world"
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assert.strictEqual(input.getValue(), "");
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input.handleInput("\x19"); // Ctrl+Y
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assert.strictEqual(input.getValue(), "hello world");
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});
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it("Ctrl+Y does nothing when kill ring is empty", () => {
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const input = new Input();
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input.setValue("test");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x19"); // Ctrl+Y
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assert.strictEqual(input.getValue(), "test");
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});
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it("Alt+Y cycles through kill ring after Ctrl+Y", () => {
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const input = new Input();
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// Create kill ring with multiple entries
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input.setValue("first");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // Ctrl+W - deletes "first"
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input.setValue("second");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // Ctrl+W - deletes "second"
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input.setValue("third");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // Ctrl+W - deletes "third"
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assert.strictEqual(input.getValue(), "");
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input.handleInput("\x19"); // Ctrl+Y - yanks "third"
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assert.strictEqual(input.getValue(), "third");
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input.handleInput("\x1by"); // Alt+Y - cycles to "second"
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assert.strictEqual(input.getValue(), "second");
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input.handleInput("\x1by"); // Alt+Y - cycles to "first"
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assert.strictEqual(input.getValue(), "first");
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input.handleInput("\x1by"); // Alt+Y - cycles back to "third"
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assert.strictEqual(input.getValue(), "third");
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});
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it("Alt+Y does nothing if not preceded by yank", () => {
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const input = new Input();
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input.setValue("test");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // Ctrl+W - deletes "test"
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input.setValue("other");
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input.handleInput("\x05"); // Ctrl+E
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// Type something to break the yank chain
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input.handleInput("x");
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assert.strictEqual(input.getValue(), "otherx");
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input.handleInput("\x1by"); // Alt+Y - should do nothing
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assert.strictEqual(input.getValue(), "otherx");
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});
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it("Alt+Y does nothing if kill ring has one entry", () => {
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const input = new Input();
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input.setValue("only");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // Ctrl+W - deletes "only"
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input.handleInput("\x19"); // Ctrl+Y - yanks "only"
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assert.strictEqual(input.getValue(), "only");
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input.handleInput("\x1by"); // Alt+Y - should do nothing
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assert.strictEqual(input.getValue(), "only");
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});
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it("consecutive Ctrl+W accumulates into one kill ring entry", () => {
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const input = new Input();
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input.setValue("one two three");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // Ctrl+W - deletes "three"
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input.handleInput("\x17"); // Ctrl+W - deletes "two "
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input.handleInput("\x17"); // Ctrl+W - deletes "one "
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assert.strictEqual(input.getValue(), "");
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input.handleInput("\x19"); // Ctrl+Y
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assert.strictEqual(input.getValue(), "one two three");
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});
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it("non-delete actions break kill accumulation", () => {
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const input = new Input();
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input.setValue("foo bar baz");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // Ctrl+W - deletes "baz"
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assert.strictEqual(input.getValue(), "foo bar ");
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input.handleInput("x"); // Typing breaks accumulation
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assert.strictEqual(input.getValue(), "foo bar x");
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input.handleInput("\x17"); // Ctrl+W - deletes "x" (separate entry)
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assert.strictEqual(input.getValue(), "foo bar ");
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input.handleInput("\x19"); // Ctrl+Y - most recent is "x"
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assert.strictEqual(input.getValue(), "foo bar x");
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input.handleInput("\x1by"); // Alt+Y - cycle to "baz"
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assert.strictEqual(input.getValue(), "foo bar baz");
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});
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it("non-yank actions break Alt+Y chain", () => {
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const input = new Input();
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input.setValue("first");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // Ctrl+W
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input.setValue("second");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // Ctrl+W
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input.setValue("");
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input.handleInput("\x19"); // Ctrl+Y - yanks "second"
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assert.strictEqual(input.getValue(), "second");
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input.handleInput("x"); // Breaks yank chain
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assert.strictEqual(input.getValue(), "secondx");
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input.handleInput("\x1by"); // Alt+Y - should do nothing
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assert.strictEqual(input.getValue(), "secondx");
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});
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it("kill ring rotation persists after cycling", () => {
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const input = new Input();
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input.setValue("first");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // deletes "first"
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input.setValue("second");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // deletes "second"
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input.setValue("third");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // deletes "third"
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input.setValue("");
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input.handleInput("\x19"); // Ctrl+Y - yanks "third"
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input.handleInput("\x1by"); // Alt+Y - cycles to "second"
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assert.strictEqual(input.getValue(), "second");
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// Break chain and start fresh
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input.handleInput("x");
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input.setValue("");
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// New yank should get "second" (now at end after rotation)
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input.handleInput("\x19"); // Ctrl+Y
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assert.strictEqual(input.getValue(), "second");
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});
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it("backward deletions prepend, forward deletions append during accumulation", () => {
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const input = new Input();
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input.setValue("prefix|suffix");
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// Position cursor at "|"
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input.handleInput("\x01"); // Ctrl+A
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for (let i = 0; i < 6; i++) input.handleInput("\x1b[C"); // Move right 6
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input.handleInput("\x0b"); // Ctrl+K - deletes "|suffix" (forward)
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assert.strictEqual(input.getValue(), "prefix");
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input.handleInput("\x19"); // Ctrl+Y
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assert.strictEqual(input.getValue(), "prefix|suffix");
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});
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it("Alt+D deletes word forward and saves to kill ring", () => {
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const input = new Input();
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input.setValue("hello world test");
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input.handleInput("\x01"); // Ctrl+A
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input.handleInput("\x1bd"); // Alt+D - deletes "hello"
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assert.strictEqual(input.getValue(), " world test");
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input.handleInput("\x1bd"); // Alt+D - deletes " world"
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assert.strictEqual(input.getValue(), " test");
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// Yank should get accumulated text
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input.handleInput("\x19"); // Ctrl+Y
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assert.strictEqual(input.getValue(), "hello world test");
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});
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it("handles yank in middle of text", () => {
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const input = new Input();
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input.setValue("word");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // Ctrl+W - deletes "word"
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input.setValue("hello world");
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// Move to middle (after "hello ")
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input.handleInput("\x01"); // Ctrl+A
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for (let i = 0; i < 6; i++) input.handleInput("\x1b[C");
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input.handleInput("\x19"); // Ctrl+Y
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assert.strictEqual(input.getValue(), "hello wordworld");
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});
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it("handles yank-pop in middle of text", () => {
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const input = new Input();
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// Create two kill ring entries
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input.setValue("FIRST");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // Ctrl+W - deletes "FIRST"
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input.setValue("SECOND");
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input.handleInput("\x05"); // Ctrl+E
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input.handleInput("\x17"); // Ctrl+W - deletes "SECOND"
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// Set up "hello world" and position cursor after "hello "
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input.setValue("hello world");
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input.handleInput("\x01"); // Ctrl+A
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for (let i = 0; i < 6; i++) input.handleInput("\x1b[C");
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input.handleInput("\x19"); // Ctrl+Y - yanks "SECOND"
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assert.strictEqual(input.getValue(), "hello SECONDworld");
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input.handleInput("\x1by"); // Alt+Y - replaces with "FIRST"
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assert.strictEqual(input.getValue(), "hello FIRSTworld");
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});
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});
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describe("Undo", () => {
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it("does nothing when undo stack is empty", () => {
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const input = new Input();
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input.handleInput("\x1b[45;5u"); // Ctrl+- (undo)
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assert.strictEqual(input.getValue(), "");
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});
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it("coalesces consecutive word characters into one undo unit", () => {
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const input = new Input();
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input.handleInput("h");
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input.handleInput("e");
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input.handleInput("l");
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input.handleInput("l");
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input.handleInput("o");
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input.handleInput(" ");
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input.handleInput("w");
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input.handleInput("o");
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input.handleInput("r");
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input.handleInput("l");
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input.handleInput("d");
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assert.strictEqual(input.getValue(), "hello world");
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// Undo removes " world"
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input.handleInput("\x1b[45;5u"); // Ctrl+- (undo)
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assert.strictEqual(input.getValue(), "hello");
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// Undo removes "hello"
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input.handleInput("\x1b[45;5u"); // Ctrl+- (undo)
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assert.strictEqual(input.getValue(), "");
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});
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it("undoes spaces one at a time", () => {
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const input = new Input();
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input.handleInput("h");
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input.handleInput("e");
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input.handleInput("l");
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input.handleInput("l");
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input.handleInput("o");
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input.handleInput(" ");
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input.handleInput(" ");
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assert.strictEqual(input.getValue(), "hello ");
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input.handleInput("\x1b[45;5u"); // Ctrl+- (undo) - removes second " "
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assert.strictEqual(input.getValue(), "hello ");
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input.handleInput("\x1b[45;5u"); // Ctrl+- (undo) - removes first " "
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assert.strictEqual(input.getValue(), "hello");
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input.handleInput("\x1b[45;5u"); // Ctrl+- (undo) - removes "hello"
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assert.strictEqual(input.getValue(), "");
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});
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it("undoes backspace", () => {
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const input = new Input();
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input.handleInput("h");
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input.handleInput("e");
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input.handleInput("l");
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input.handleInput("l");
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input.handleInput("o");
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input.handleInput("\x7f"); // Backspace
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assert.strictEqual(input.getValue(), "hell");
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input.handleInput("\x1b[45;5u"); // Ctrl+- (undo)
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assert.strictEqual(input.getValue(), "hello");
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});
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it("undoes forward delete", () => {
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const input = new Input();
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input.handleInput("h");
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input.handleInput("e");
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input.handleInput("l");
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input.handleInput("l");
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input.handleInput("o");
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input.handleInput("\x01"); // Ctrl+A - go to start
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input.handleInput("\x1b[C"); // Right arrow
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input.handleInput("\x1b[3~"); // Delete key
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assert.strictEqual(input.getValue(), "hllo");
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input.handleInput("\x1b[45;5u"); // Ctrl+- (undo)
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assert.strictEqual(input.getValue(), "hello");
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});
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it("undoes Ctrl+W (delete word backward)", () => {
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const input = new Input();
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input.handleInput("h");
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input.handleInput("e");
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input.handleInput("l");
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input.handleInput("l");
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input.handleInput("o");
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input.handleInput(" ");
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input.handleInput("w");
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input.handleInput("o");
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input.handleInput("r");
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input.handleInput("l");
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input.handleInput("d");
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assert.strictEqual(input.getValue(), "hello world");
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input.handleInput("\x17"); // Ctrl+W
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assert.strictEqual(input.getValue(), "hello ");
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input.handleInput("\x1b[45;5u"); // Ctrl+- (undo)
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assert.strictEqual(input.getValue(), "hello world");
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});
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it("undoes Ctrl+K (delete to line end)", () => {
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const input = new Input();
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input.handleInput("h");
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input.handleInput("e");
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input.handleInput("l");
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input.handleInput("l");
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input.handleInput("o");
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input.handleInput(" ");
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input.handleInput("w");
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input.handleInput("o");
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input.handleInput("r");
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input.handleInput("l");
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input.handleInput("d");
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input.handleInput("\x01"); // Ctrl+A
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for (let i = 0; i < 6; i++) input.handleInput("\x1b[C");
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input.handleInput("\x0b"); // Ctrl+K
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assert.strictEqual(input.getValue(), "hello ");
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input.handleInput("\x1b[45;5u"); // Ctrl+- (undo)
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assert.strictEqual(input.getValue(), "hello world");
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});
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it("undoes Ctrl+U (delete to line start)", () => {
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const input = new Input();
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input.handleInput("h");
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input.handleInput("e");
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input.handleInput("l");
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input.handleInput("l");
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input.handleInput("o");
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input.handleInput(" ");
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input.handleInput("w");
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input.handleInput("o");
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input.handleInput("r");
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input.handleInput("l");
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input.handleInput("d");
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input.handleInput("\x01"); // Ctrl+A
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for (let i = 0; i < 6; i++) input.handleInput("\x1b[C");
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input.handleInput("\x15"); // Ctrl+U
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assert.strictEqual(input.getValue(), "world");
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input.handleInput("\x1b[45;5u"); // Ctrl+- (undo)
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assert.strictEqual(input.getValue(), "hello world");
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});
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it("undoes yank", () => {
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const input = new Input();
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input.handleInput("h");
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input.handleInput("e");
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input.handleInput("l");
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input.handleInput("l");
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input.handleInput("o");
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input.handleInput(" ");
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input.handleInput("\x17"); // Ctrl+W - delete "hello "
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input.handleInput("\x19"); // Ctrl+Y - yank
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assert.strictEqual(input.getValue(), "hello ");
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input.handleInput("\x1b[45;5u"); // Ctrl+- (undo)
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assert.strictEqual(input.getValue(), "");
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});
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it("undoes paste atomically", () => {
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const input = new Input();
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input.setValue("hello world");
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input.handleInput("\x01"); // Ctrl+A
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for (let i = 0; i < 5; i++) input.handleInput("\x1b[C");
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// Simulate bracketed paste
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input.handleInput("\x1b[200~beep boop\x1b[201~");
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assert.strictEqual(input.getValue(), "hellobeep boop world");
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// Single undo should restore entire pre-paste state
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input.handleInput("\x1b[45;5u"); // Ctrl+- (undo)
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assert.strictEqual(input.getValue(), "hello world");
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});
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it("undoes Alt+D (delete word forward)", () => {
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const input = new Input();
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input.setValue("hello world");
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input.handleInput("\x01"); // Ctrl+A
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input.handleInput("\x1bd"); // Alt+D - deletes "hello"
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assert.strictEqual(input.getValue(), " world");
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input.handleInput("\x1b[45;5u"); // Ctrl+- (undo)
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|
assert.strictEqual(input.getValue(), "hello world");
|
|
});
|
|
|
|
it("cursor movement starts new undo unit", () => {
|
|
const input = new Input();
|
|
|
|
input.handleInput("a");
|
|
input.handleInput("b");
|
|
input.handleInput("c");
|
|
input.handleInput("\x01"); // Ctrl+A - movement breaks coalescing
|
|
input.handleInput("\x05"); // Ctrl+E
|
|
input.handleInput("d");
|
|
input.handleInput("e");
|
|
assert.strictEqual(input.getValue(), "abcde");
|
|
|
|
// Undo removes "de" (typed after movement)
|
|
input.handleInput("\x1b[45;5u"); // Ctrl+- (undo)
|
|
assert.strictEqual(input.getValue(), "abc");
|
|
|
|
// Undo removes "abc"
|
|
input.handleInput("\x1b[45;5u"); // Ctrl+- (undo)
|
|
assert.strictEqual(input.getValue(), "");
|
|
});
|
|
});
|
|
});
|