390 lines
10 KiB
JavaScript
390 lines
10 KiB
JavaScript
import Buffer from './buffer.ts';
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import Document from './document.ts';
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import Editor from './editor.ts';
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import Row from './row.ts';
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import { Ansi, KeyCommand } from './ansi.ts';
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import { defaultTerminalSize, SCROLL_TAB_SIZE } from './config.ts';
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import { getTestRunner } from './runtime.ts';
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import { Position } from './types.ts';
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import * as Fn from './fns.ts';
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const {
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assertEquals,
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assertExists,
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assertInstanceOf,
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assertNotEquals,
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assertNull,
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assertFalse,
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assertTrue,
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testSuite,
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} = await getTestRunner();
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const encoder = new TextEncoder();
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const testKeyMap = (codes: string[], expected: string) => {
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codes.forEach((code) => {
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assertEquals(Fn.readKey(encoder.encode(code)), expected);
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});
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};
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testSuite({
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'ANSI utils': {
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'moveCursor()': () => {
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assertEquals(Ansi.moveCursor(1, 2), '\x1b[2;3H');
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},
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'moveCursorForward()': () => {
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assertEquals(Ansi.moveCursorForward(2), '\x1b[2C');
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},
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'moveCursorDown()': () => {
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assertEquals(Ansi.moveCursorDown(7), '\x1b[7B');
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},
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},
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Buffer: {
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'new Buffer': () => {
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const b = new Buffer();
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assertInstanceOf(b, Buffer);
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assertEquals(b.strlen(), 0);
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},
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'.appendLine': () => {
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const b = new Buffer();
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// Carriage return and line feed
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b.appendLine();
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assertEquals(b.strlen(), 2);
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b.clear();
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assertEquals(b.strlen(), 0);
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b.appendLine('foo');
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assertEquals(b.strlen(), 5);
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},
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'.append': () => {
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const b = new Buffer();
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b.append('foobar');
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assertEquals(b.strlen(), 6);
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b.clear();
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b.append('foobar', 3);
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assertEquals(b.strlen(), 3);
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},
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'.flush': async () => {
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const b = new Buffer();
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b.appendLine('foobarbaz' + Ansi.ClearLine);
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assertEquals(b.strlen(), 14);
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await b.flush();
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assertEquals(b.strlen(), 0);
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},
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},
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Document: {
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'.default': () => {
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const doc = Document.default();
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assertEquals(doc.numRows, 0);
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assertTrue(doc.isEmpty());
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assertEquals(doc.row(0), null);
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},
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'.insertRow': () => {
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const doc = Document.default();
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doc.insertRow(undefined, 'foobar');
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assertEquals(doc.numRows, 1);
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assertFalse(doc.isEmpty());
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assertInstanceOf(doc.row(0), Row);
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},
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'.insert': () => {
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const doc = Document.default();
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assertFalse(doc.dirty);
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doc.insert(Position.at(0, 0), 'foobar');
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assertEquals(doc.numRows, 1);
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assertTrue(doc.dirty);
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doc.insert(Position.at(2, 0), 'baz');
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assertEquals(doc.numRows, 1);
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assertTrue(doc.dirty);
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doc.insert(Position.at(9, 0), 'buzz');
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assertEquals(doc.numRows, 1);
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assertTrue(doc.dirty);
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const row0 = doc.row(0);
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assertEquals(row0?.toString(), 'foobazbarbuzz');
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assertEquals(row0?.rstring(), 'foobazbarbuzz');
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assertEquals(row0?.rsize, 13);
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doc.insert(Position.at(0, 1), 'Lorem Ipsum');
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assertEquals(doc.numRows, 2);
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assertTrue(doc.dirty);
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},
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'.delete': () => {
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const doc = Document.default();
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doc.insert(Position.default(), 'foobar');
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doc.delete(Position.at(3, 0));
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assertEquals(doc.row(0)?.toString(), 'fooar');
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},
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},
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Editor: {
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'new Editor': () => {
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const e = new Editor(defaultTerminalSize);
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assertInstanceOf(e, Editor);
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},
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},
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Position: {
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'.default': () => {
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const p = Position.default();
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assertEquals(p.x, 0);
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assertEquals(p.y, 0);
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},
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'.at': () => {
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const p = Position.at(5, 7);
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assertEquals(p.x, 5);
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assertEquals(p.y, 7);
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},
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'.from': () => {
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const p1 = Position.at(1, 2);
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const p2 = Position.from(p1);
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p1.x = 2;
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p1.y = 4;
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assertEquals(p1.x, 2);
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assertEquals(p1.y, 4);
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assertEquals(p2.x, 1);
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assertEquals(p2.y, 2);
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},
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},
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Row: {
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'.default': () => {
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const row = Row.default();
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assertEquals(row.toString(), '');
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},
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'.from': () => {
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// From string
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const row = Row.from('xyz');
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assertEquals(row.toString(), 'xyz');
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// From existing Row
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assertEquals(Row.from(row).toString(), row.toString());
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// From 'chars'
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assertEquals(Row.from(['😺', '😸', '😹']).toString(), '😺😸😹');
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},
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'.append': () => {
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const row = Row.from('foo');
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row.append('bar');
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assertEquals(row.toString(), 'foobar');
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},
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'.delete': () => {
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const row = Row.from('foof');
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row.delete(3);
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assertEquals(row.toString(), 'foo');
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row.delete(4);
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assertEquals(row.toString(), 'foo');
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},
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'.split': () => {
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// When you split a row, it's from the cursor position
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// (Kind of like if the string were one-indexed)
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const row = Row.from('foobar');
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const row2 = Row.from('bar');
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assertEquals(row.split(3).toString(), row2.toString());
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},
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'.find': () => {
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const normalRow = Row.from('For whom the bell tolls');
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assertEquals(normalRow.find('who'), 4);
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assertNull(normalRow.find('foo'));
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const emojiRow = Row.from('😺😸😹');
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assertEquals(emojiRow.find('😹'), 2);
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assertNull(emojiRow.find('🤰🏼'));
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},
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'.byteIndexToCharIndex': () => {
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// Each 'character' is two bytes
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const row = Row.from('😺😸😹👨👩👧👦');
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assertEquals(row.byteIndexToCharIndex(4), 2);
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assertEquals(row.byteIndexToCharIndex(2), 1);
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assertEquals(row.byteIndexToCharIndex(0), 0);
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// Return count on nonsense index
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assertEquals(Fn.strlen(row.toString()), 10);
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assertEquals(row.byteIndexToCharIndex(72), 10);
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const row2 = Row.from('foobar');
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assertEquals(row2.byteIndexToCharIndex(2), 2);
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},
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'.charIndexToByteIndex': () => {
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// Each 'character' is two bytes
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const row = Row.from('😺😸😹👨👩👧👦');
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assertEquals(row.charIndexToByteIndex(2), 4);
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assertEquals(row.charIndexToByteIndex(1), 2);
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assertEquals(row.charIndexToByteIndex(0), 0);
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},
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'.cxToRx, .rxToCx': () => {
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const row = Row.from('foo\tbar\tbaz');
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row.update();
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assertNotEquals(row.chars, row.rchars);
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assertNotEquals(row.size, row.rsize);
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assertEquals(row.size, 11);
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assertEquals(row.rsize, row.size + (SCROLL_TAB_SIZE * 2) - 2);
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const cx = 11;
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const aRx = row.cxToRx(cx);
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const rx = 11;
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const aCx = row.rxToCx(aRx);
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assertEquals(aCx, cx);
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assertEquals(aRx, rx);
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},
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},
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'fns': {
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'arrayInsert() strings': () => {
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const { arrayInsert } = Fn;
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const a = ['😺', '😸', '😹'];
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const b = arrayInsert(a, 1, 'x');
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const c = ['😺', 'x', '😸', '😹'];
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assertEquals(b, c);
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const d = arrayInsert(c, 17, 'y');
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const e = ['😺', 'x', '😸', '😹', 'y'];
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assertEquals(d, e);
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assertEquals(arrayInsert([], 0, 'foo'), ['foo']);
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},
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'arrayInsert() numbers': () => {
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const { arrayInsert } = Fn;
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const a = [1, 3, 5];
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const b = [1, 3, 4, 5];
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assertEquals(arrayInsert(a, 2, 4), b);
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const c = [1, 2, 3, 4, 5];
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assertEquals(arrayInsert(b, 1, 2), c);
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},
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'noop fn': () => {
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assertExists(Fn.noop);
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assertEquals(Fn.noop(), undefined);
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},
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'posSub()': () => {
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assertEquals(Fn.posSub(14, 15), 0);
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assertEquals(Fn.posSub(15, 1), 14);
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},
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'minSub()': () => {
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assertEquals(Fn.minSub(13, 25, -1), -1);
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assertEquals(Fn.minSub(25, 13, 0), 12);
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},
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'maxAdd()': () => {
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assertEquals(Fn.maxAdd(99, 99, 75), 75);
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assertEquals(Fn.maxAdd(25, 74, 101), 99);
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},
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'ord()': () => {
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const { ord } = Fn;
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// Invalid output
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assertEquals(ord(''), 256);
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// Valid output
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assertEquals(ord('a'), 97);
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},
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'strChars() properly splits strings into unicode characters': () => {
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const { strChars } = Fn;
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assertEquals(strChars('😺😸😹'), ['😺', '😸', '😹']);
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},
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'ctrlKey()': () => {
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const { ctrlKey, isControl } = Fn;
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const ctrl_a = ctrlKey('a');
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assertTrue(isControl(ctrl_a));
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assertEquals(ctrl_a, String.fromCodePoint(0x01));
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const invalid = ctrlKey('😺');
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assertFalse(isControl(invalid));
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assertEquals(invalid, '😺');
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},
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'isAscii()': () => {
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const { isAscii } = Fn;
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assertTrue(isAscii('asjyverkjhsdf1928374'));
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assertFalse(isAscii('😺acalskjsdf'));
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assertFalse(isAscii('ab😺ac'));
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},
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'isAsciiDigit()': () => {
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const { isAsciiDigit } = Fn;
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assertTrue(isAsciiDigit('1234567890'));
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assertFalse(isAsciiDigit('A1'));
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assertFalse(isAsciiDigit('/'));
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assertFalse(isAsciiDigit(':'));
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},
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'isControl()': () => {
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const { isControl } = Fn;
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assertFalse(isControl('abc'));
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assertTrue(isControl(String.fromCodePoint(0x01)));
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assertFalse(isControl('😺'));
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},
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'strlen()': () => {
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const { strlen } = Fn;
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// Ascii length
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assertEquals(strlen('abc'), 'abc'.length);
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// Get number of visible unicode characters
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assertEquals(strlen('😺😸😹'), 3);
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assertNotEquals('😺😸😹'.length, strlen('😺😸😹'));
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// Skin tone modifier + base character
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assertEquals(strlen('🤰🏼'), 2);
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assertNotEquals('🤰🏼'.length, strlen('🤰🏼'));
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// This has 4 sub-characters, and 3 zero-width-joiners
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assertEquals(strlen('👨👩👧👦'), 7);
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assertNotEquals('👨👩👧👦'.length, strlen('👨👩👧👦'));
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},
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'truncate()': () => {
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const { truncate } = Fn;
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assertEquals(truncate('😺😸😹', 1), '😺');
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assertEquals(truncate('😺😸😹', 5), '😺😸😹');
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assertEquals(truncate('👨👩👧👦', 5), '👨👩👧');
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},
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},
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'readKey()': {
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'empty input': () => {
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assertEquals(Fn.readKey(new Uint8Array(0)), '');
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},
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'passthrough': () => {
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// Ignore unhandled escape sequences
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assertEquals(Fn.readKey(encoder.encode('\x1b[]')), '\x1b[]');
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// Pass explicitly mapped values right through
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assertEquals(
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Fn.readKey(encoder.encode(KeyCommand.ArrowUp)),
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KeyCommand.ArrowUp,
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);
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assertEquals(
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Fn.readKey(encoder.encode(KeyCommand.Home)),
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KeyCommand.Home,
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);
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assertEquals(
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Fn.readKey(encoder.encode(KeyCommand.Delete)),
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KeyCommand.Delete,
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);
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// And pass through whatever else
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assertEquals(Fn.readKey(encoder.encode('foobaz')), 'foobaz');
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},
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'Esc': () => testKeyMap(['\x1b', Fn.ctrlKey('l')], KeyCommand.Escape),
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'Backspace': () =>
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testKeyMap(
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[Fn.ctrlKey('h'), '\x7f'],
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KeyCommand.Backspace,
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),
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'Home': () =>
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testKeyMap(['\x1b[1~', '\x1b[7~', '\x1b[H', '\x1bOH'], KeyCommand.Home),
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'End': () =>
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testKeyMap(['\x1b[4~', '\x1b[8~', '\x1b[F', '\x1bOF'], KeyCommand.End),
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'Enter': () => testKeyMap(['\n', '\r', '\v'], KeyCommand.Enter),
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},
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});
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