mirror of
https://github.com/getcompanion-ai/co-mono.git
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0427445242
- Skip trailing whitespace before deleting word (readline behavior) - Make word navigation grapheme-aware using Intl.Segmenter - Add Ctrl+Left/Right and Alt+Left/Right word navigation to Input - Accept full Unicode input while rejecting control characters (C0/C1/DEL) - Extract shared utilities to utils.ts (getSegmenter, isWhitespaceChar, isPunctuationChar) - Fix unsafe cast in Editor.forceFileAutocomplete with runtime type check - Add comprehensive tests for word deletion and navigation
579 lines
19 KiB
TypeScript
579 lines
19 KiB
TypeScript
import assert from "node:assert";
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import { describe, it } from "node:test";
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import { stripVTControlCharacters } from "node:util";
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import { Editor } from "../src/components/editor.js";
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import { visibleWidth } from "../src/utils.js";
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import { defaultEditorTheme } from "./test-themes.js";
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describe("Editor component", () => {
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describe("Prompt history navigation", () => {
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it("does nothing on Up arrow when history is empty", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.handleInput("\x1b[A"); // Up arrow
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assert.strictEqual(editor.getText(), "");
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});
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it("shows most recent history entry on Up arrow when editor is empty", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.addToHistory("first prompt");
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editor.addToHistory("second prompt");
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editor.handleInput("\x1b[A"); // Up arrow
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assert.strictEqual(editor.getText(), "second prompt");
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});
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it("cycles through history entries on repeated Up arrow", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.addToHistory("first");
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editor.addToHistory("second");
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editor.addToHistory("third");
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editor.handleInput("\x1b[A"); // Up - shows "third"
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assert.strictEqual(editor.getText(), "third");
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editor.handleInput("\x1b[A"); // Up - shows "second"
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assert.strictEqual(editor.getText(), "second");
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editor.handleInput("\x1b[A"); // Up - shows "first"
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assert.strictEqual(editor.getText(), "first");
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editor.handleInput("\x1b[A"); // Up - stays at "first" (oldest)
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assert.strictEqual(editor.getText(), "first");
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});
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it("returns to empty editor on Down arrow after browsing history", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.addToHistory("prompt");
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editor.handleInput("\x1b[A"); // Up - shows "prompt"
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assert.strictEqual(editor.getText(), "prompt");
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editor.handleInput("\x1b[B"); // Down - clears editor
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assert.strictEqual(editor.getText(), "");
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});
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it("navigates forward through history with Down arrow", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.addToHistory("first");
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editor.addToHistory("second");
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editor.addToHistory("third");
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// Go to oldest
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editor.handleInput("\x1b[A"); // third
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editor.handleInput("\x1b[A"); // second
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editor.handleInput("\x1b[A"); // first
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// Navigate back
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editor.handleInput("\x1b[B"); // second
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assert.strictEqual(editor.getText(), "second");
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editor.handleInput("\x1b[B"); // third
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assert.strictEqual(editor.getText(), "third");
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editor.handleInput("\x1b[B"); // empty
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assert.strictEqual(editor.getText(), "");
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});
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it("exits history mode when typing a character", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.addToHistory("old prompt");
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editor.handleInput("\x1b[A"); // Up - shows "old prompt"
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editor.handleInput("x"); // Type a character - exits history mode
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assert.strictEqual(editor.getText(), "old promptx");
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});
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it("exits history mode on setText", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.addToHistory("first");
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editor.addToHistory("second");
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editor.handleInput("\x1b[A"); // Up - shows "second"
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editor.setText(""); // External clear
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// Up should start fresh from most recent
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editor.handleInput("\x1b[A");
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assert.strictEqual(editor.getText(), "second");
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});
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it("does not add empty strings to history", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.addToHistory("");
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editor.addToHistory(" ");
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editor.addToHistory("valid");
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editor.handleInput("\x1b[A");
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assert.strictEqual(editor.getText(), "valid");
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// Should not have more entries
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editor.handleInput("\x1b[A");
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assert.strictEqual(editor.getText(), "valid");
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});
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it("does not add consecutive duplicates to history", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.addToHistory("same");
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editor.addToHistory("same");
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editor.addToHistory("same");
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editor.handleInput("\x1b[A"); // "same"
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assert.strictEqual(editor.getText(), "same");
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editor.handleInput("\x1b[A"); // stays at "same" (only one entry)
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assert.strictEqual(editor.getText(), "same");
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});
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it("allows non-consecutive duplicates in history", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.addToHistory("first");
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editor.addToHistory("second");
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editor.addToHistory("first"); // Not consecutive, should be added
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editor.handleInput("\x1b[A"); // "first"
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assert.strictEqual(editor.getText(), "first");
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editor.handleInput("\x1b[A"); // "second"
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assert.strictEqual(editor.getText(), "second");
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editor.handleInput("\x1b[A"); // "first" (older one)
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assert.strictEqual(editor.getText(), "first");
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});
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it("uses cursor movement instead of history when editor has content", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.addToHistory("history item");
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editor.setText("line1\nline2");
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// Cursor is at end of line2, Up should move to line1
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editor.handleInput("\x1b[A"); // Up - cursor movement
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// Insert character to verify cursor position
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editor.handleInput("X");
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// X should be inserted in line1, not replace with history
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assert.strictEqual(editor.getText(), "line1X\nline2");
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});
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it("limits history to 100 entries", () => {
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const editor = new Editor(defaultEditorTheme);
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// Add 105 entries
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for (let i = 0; i < 105; i++) {
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editor.addToHistory(`prompt ${i}`);
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}
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// Navigate to oldest
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for (let i = 0; i < 100; i++) {
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editor.handleInput("\x1b[A");
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}
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// Should be at entry 5 (oldest kept), not entry 0
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assert.strictEqual(editor.getText(), "prompt 5");
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// One more Up should not change anything
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editor.handleInput("\x1b[A");
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assert.strictEqual(editor.getText(), "prompt 5");
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});
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it("allows cursor movement within multi-line history entry with Down", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.addToHistory("line1\nline2\nline3");
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// Browse to the multi-line entry
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editor.handleInput("\x1b[A"); // Up - shows entry, cursor at end of line3
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assert.strictEqual(editor.getText(), "line1\nline2\nline3");
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// Down should exit history since cursor is on last line
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editor.handleInput("\x1b[B"); // Down
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assert.strictEqual(editor.getText(), ""); // Exited to empty
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});
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it("allows cursor movement within multi-line history entry with Up", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.addToHistory("older entry");
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editor.addToHistory("line1\nline2\nline3");
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// Browse to the multi-line entry
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editor.handleInput("\x1b[A"); // Up - shows multi-line, cursor at end of line3
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// Up should move cursor within the entry (not on first line yet)
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editor.handleInput("\x1b[A"); // Up - cursor moves to line2
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assert.strictEqual(editor.getText(), "line1\nline2\nline3"); // Still same entry
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editor.handleInput("\x1b[A"); // Up - cursor moves to line1 (now on first visual line)
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assert.strictEqual(editor.getText(), "line1\nline2\nline3"); // Still same entry
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// Now Up should navigate to older history entry
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editor.handleInput("\x1b[A"); // Up - navigate to older
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assert.strictEqual(editor.getText(), "older entry");
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});
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it("navigates from multi-line entry back to newer via Down after cursor movement", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.addToHistory("line1\nline2\nline3");
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// Browse to entry and move cursor up
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editor.handleInput("\x1b[A"); // Up - shows entry, cursor at end
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editor.handleInput("\x1b[A"); // Up - cursor to line2
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editor.handleInput("\x1b[A"); // Up - cursor to line1
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// Now Down should move cursor down within the entry
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editor.handleInput("\x1b[B"); // Down - cursor to line2
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assert.strictEqual(editor.getText(), "line1\nline2\nline3");
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editor.handleInput("\x1b[B"); // Down - cursor to line3
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assert.strictEqual(editor.getText(), "line1\nline2\nline3");
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// Now on last line, Down should exit history
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editor.handleInput("\x1b[B"); // Down - exit to empty
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assert.strictEqual(editor.getText(), "");
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});
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});
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describe("public state accessors", () => {
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it("returns cursor position", () => {
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const editor = new Editor(defaultEditorTheme);
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assert.deepStrictEqual(editor.getCursor(), { line: 0, col: 0 });
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editor.handleInput("a");
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editor.handleInput("b");
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editor.handleInput("c");
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assert.deepStrictEqual(editor.getCursor(), { line: 0, col: 3 });
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editor.handleInput("\x1b[D"); // Left
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assert.deepStrictEqual(editor.getCursor(), { line: 0, col: 2 });
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});
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it("returns lines as a defensive copy", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.setText("a\nb");
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const lines = editor.getLines();
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assert.deepStrictEqual(lines, ["a", "b"]);
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lines[0] = "mutated";
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assert.deepStrictEqual(editor.getLines(), ["a", "b"]);
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});
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});
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describe("Unicode text editing behavior", () => {
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it("inserts mixed ASCII, umlauts, and emojis as literal text", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.handleInput("H");
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editor.handleInput("e");
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editor.handleInput("l");
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editor.handleInput("l");
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editor.handleInput("o");
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editor.handleInput(" ");
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editor.handleInput("ä");
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editor.handleInput("ö");
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editor.handleInput("ü");
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editor.handleInput(" ");
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editor.handleInput("😀");
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const text = editor.getText();
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assert.strictEqual(text, "Hello äöü 😀");
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});
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it("deletes single-code-unit unicode characters (umlauts) with Backspace", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.handleInput("ä");
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editor.handleInput("ö");
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editor.handleInput("ü");
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// Delete the last character (ü)
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editor.handleInput("\x7f"); // Backspace
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const text = editor.getText();
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assert.strictEqual(text, "äö");
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});
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it("deletes multi-code-unit emojis with single Backspace", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.handleInput("😀");
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editor.handleInput("👍");
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// Delete the last emoji (👍) - single backspace deletes whole grapheme cluster
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editor.handleInput("\x7f"); // Backspace
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const text = editor.getText();
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assert.strictEqual(text, "😀");
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});
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it("inserts characters at the correct position after cursor movement over umlauts", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.handleInput("ä");
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editor.handleInput("ö");
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editor.handleInput("ü");
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// Move cursor left twice
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editor.handleInput("\x1b[D"); // Left arrow
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editor.handleInput("\x1b[D"); // Left arrow
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// Insert 'x' in the middle
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editor.handleInput("x");
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const text = editor.getText();
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assert.strictEqual(text, "äxöü");
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});
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it("moves cursor across multi-code-unit emojis with single arrow key", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.handleInput("😀");
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editor.handleInput("👍");
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editor.handleInput("🎉");
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// Move cursor left over last emoji (🎉) - single arrow moves over whole grapheme
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editor.handleInput("\x1b[D"); // Left arrow
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// Move cursor left over second emoji (👍)
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editor.handleInput("\x1b[D");
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// Insert 'x' between first and second emoji
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editor.handleInput("x");
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const text = editor.getText();
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assert.strictEqual(text, "😀x👍🎉");
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});
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it("preserves umlauts across line breaks", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.handleInput("ä");
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editor.handleInput("ö");
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editor.handleInput("ü");
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editor.handleInput("\n"); // new line
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editor.handleInput("Ä");
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editor.handleInput("Ö");
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editor.handleInput("Ü");
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const text = editor.getText();
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assert.strictEqual(text, "äöü\nÄÖÜ");
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});
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it("replaces the entire document with unicode text via setText (paste simulation)", () => {
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const editor = new Editor(defaultEditorTheme);
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// Simulate bracketed paste / programmatic replacement
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editor.setText("Hällö Wörld! 😀 äöüÄÖÜß");
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const text = editor.getText();
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assert.strictEqual(text, "Hällö Wörld! 😀 äöüÄÖÜß");
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});
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it("moves cursor to document start on Ctrl+A and inserts at the beginning", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.handleInput("a");
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editor.handleInput("b");
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editor.handleInput("\x01"); // Ctrl+A (move to start)
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editor.handleInput("x"); // Insert at start
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const text = editor.getText();
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assert.strictEqual(text, "xab");
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});
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it("deletes words correctly with Ctrl+W and Alt+Backspace", () => {
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const editor = new Editor(defaultEditorTheme);
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// Basic word deletion
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editor.setText("foo bar baz");
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editor.handleInput("\x17"); // Ctrl+W
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assert.strictEqual(editor.getText(), "foo bar ");
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// Trailing whitespace
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editor.setText("foo bar ");
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editor.handleInput("\x17");
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assert.strictEqual(editor.getText(), "foo ");
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// Punctuation run
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editor.setText("foo bar...");
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editor.handleInput("\x17");
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assert.strictEqual(editor.getText(), "foo bar");
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// Delete across multiple lines
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editor.setText("line one\nline two");
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editor.handleInput("\x17");
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assert.strictEqual(editor.getText(), "line one\nline ");
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// Delete empty line (merge)
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editor.setText("line one\n");
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editor.handleInput("\x17");
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assert.strictEqual(editor.getText(), "line one");
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// Grapheme safety (emoji as a word)
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editor.setText("foo 😀😀 bar");
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editor.handleInput("\x17");
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assert.strictEqual(editor.getText(), "foo 😀😀 ");
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editor.handleInput("\x17");
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assert.strictEqual(editor.getText(), "foo ");
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// Alt+Backspace
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editor.setText("foo bar");
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editor.handleInput("\x1b\x7f"); // Alt+Backspace (legacy)
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assert.strictEqual(editor.getText(), "foo ");
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});
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it("navigates words correctly with Ctrl+Left/Right", () => {
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const editor = new Editor(defaultEditorTheme);
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editor.setText("foo bar... baz");
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// Cursor at end
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// Move left over baz
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editor.handleInput("\x1b[1;5D"); // Ctrl+Left
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assert.deepStrictEqual(editor.getCursor(), { line: 0, col: 11 }); // after '...'
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// Move left over punctuation
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editor.handleInput("\x1b[1;5D"); // Ctrl+Left
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assert.deepStrictEqual(editor.getCursor(), { line: 0, col: 7 }); // after 'bar'
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// Move left over bar
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editor.handleInput("\x1b[1;5D"); // Ctrl+Left
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assert.deepStrictEqual(editor.getCursor(), { line: 0, col: 4 }); // after 'foo '
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// Move right over bar
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editor.handleInput("\x1b[1;5C"); // Ctrl+Right
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assert.deepStrictEqual(editor.getCursor(), { line: 0, col: 7 }); // at end of 'bar'
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// Move right over punctuation run
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editor.handleInput("\x1b[1;5C"); // Ctrl+Right
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assert.deepStrictEqual(editor.getCursor(), { line: 0, col: 10 }); // after '...'
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// Move right skips space and lands after baz
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editor.handleInput("\x1b[1;5C"); // Ctrl+Right
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assert.deepStrictEqual(editor.getCursor(), { line: 0, col: 14 }); // end of line
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// Test forward from start with leading whitespace
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editor.setText(" foo bar");
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editor.handleInput("\x01"); // Ctrl+A to go to start
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editor.handleInput("\x1b[1;5C"); // Ctrl+Right
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assert.deepStrictEqual(editor.getCursor(), { line: 0, col: 6 }); // after 'foo'
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});
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});
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describe("Grapheme-aware text wrapping", () => {
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it("wraps lines correctly when text contains wide emojis", () => {
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const editor = new Editor(defaultEditorTheme);
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const width = 20;
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// ✅ is 2 columns wide, so "Hello ✅ World" is 14 columns
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editor.setText("Hello ✅ World");
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const lines = editor.render(width);
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// All content lines (between borders) should fit within width
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for (let i = 1; i < lines.length - 1; i++) {
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const lineWidth = visibleWidth(lines[i]!);
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assert.strictEqual(lineWidth, width, `Line ${i} has width ${lineWidth}, expected ${width}`);
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}
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});
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it("wraps long text with emojis at correct positions", () => {
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const editor = new Editor(defaultEditorTheme);
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const width = 10;
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// Each ✅ is 2 columns. "✅✅✅✅✅" = 10 columns, fits exactly
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// "✅✅✅✅✅✅" = 12 columns, needs wrap
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editor.setText("✅✅✅✅✅✅");
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const lines = editor.render(width);
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// Should have 2 content lines (plus 2 border lines)
|
|
// First line: 5 emojis (10 cols), second line: 1 emoji (2 cols) + padding
|
|
for (let i = 1; i < lines.length - 1; i++) {
|
|
const lineWidth = visibleWidth(lines[i]!);
|
|
assert.strictEqual(lineWidth, width, `Line ${i} has width ${lineWidth}, expected ${width}`);
|
|
}
|
|
});
|
|
|
|
it("wraps CJK characters correctly (each is 2 columns wide)", () => {
|
|
const editor = new Editor(defaultEditorTheme);
|
|
const width = 10;
|
|
|
|
// Each CJK char is 2 columns. "日本語テスト" = 6 chars = 12 columns
|
|
editor.setText("日本語テスト");
|
|
const lines = editor.render(width);
|
|
|
|
for (let i = 1; i < lines.length - 1; i++) {
|
|
const lineWidth = visibleWidth(lines[i]!);
|
|
assert.strictEqual(lineWidth, width, `Line ${i} has width ${lineWidth}, expected ${width}`);
|
|
}
|
|
|
|
// Verify content split correctly
|
|
const contentLines = lines.slice(1, -1).map((l) => stripVTControlCharacters(l).trim());
|
|
assert.strictEqual(contentLines.length, 2);
|
|
assert.strictEqual(contentLines[0], "日本語テス"); // 5 chars = 10 columns
|
|
assert.strictEqual(contentLines[1], "ト"); // 1 char = 2 columns (+ padding)
|
|
});
|
|
|
|
it("handles mixed ASCII and wide characters in wrapping", () => {
|
|
const editor = new Editor(defaultEditorTheme);
|
|
const width = 15;
|
|
|
|
// "Test ✅ OK 日本" = 4 + 1 + 2 + 1 + 2 + 1 + 4 = 15 columns (fits exactly)
|
|
editor.setText("Test ✅ OK 日本");
|
|
const lines = editor.render(width);
|
|
|
|
// Should fit in one content line
|
|
const contentLines = lines.slice(1, -1);
|
|
assert.strictEqual(contentLines.length, 1);
|
|
|
|
const lineWidth = visibleWidth(contentLines[0]!);
|
|
assert.strictEqual(lineWidth, width);
|
|
});
|
|
|
|
it("renders cursor correctly on wide characters", () => {
|
|
const editor = new Editor(defaultEditorTheme);
|
|
const width = 20;
|
|
|
|
editor.setText("A✅B");
|
|
// Cursor should be at end (after B)
|
|
const lines = editor.render(width);
|
|
|
|
// The cursor (reverse video space) should be visible
|
|
const contentLine = lines[1]!;
|
|
assert.ok(contentLine.includes("\x1b[7m"), "Should have reverse video cursor");
|
|
|
|
// Line should still be correct width
|
|
assert.strictEqual(visibleWidth(contentLine), width);
|
|
});
|
|
|
|
it("does not exceed terminal width with emoji at wrap boundary", () => {
|
|
const editor = new Editor(defaultEditorTheme);
|
|
const width = 11;
|
|
|
|
// "0123456789✅" = 10 ASCII + 2-wide emoji = 12 columns
|
|
// Should wrap before the emoji since it would exceed width
|
|
editor.setText("0123456789✅");
|
|
const lines = editor.render(width);
|
|
|
|
for (let i = 1; i < lines.length - 1; i++) {
|
|
const lineWidth = visibleWidth(lines[i]!);
|
|
assert.ok(lineWidth <= width, `Line ${i} has width ${lineWidth}, exceeds max ${width}`);
|
|
}
|
|
});
|
|
});
|
|
});
|