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* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { describe, it, expect, beforeAll, vi } from 'vitest';
import chalk from 'chalk';
import { parseMarkdownToANSI } from './markdownParsingUtils.js';
// Mock the theme to use explicit colors instead of empty strings from the default theme.
// This ensures that ansiColorize actually applies ANSI codes that we can verify.
vi.mock('../semantic-colors.js', () => ({
theme: {
text: {
primary: 'white',
accent: 'cyan',
link: 'blue',
},
ui: {
focus: 'green',
},
},
}));
import { theme } from '../semantic-colors.js';
import { resolveColor, INK_NAME_TO_HEX_MAP } from '../themes/color-utils.js';
import { themeManager, DEFAULT_THEME } from '../themes/theme-manager.js';
describe('parsingUtils', () => {
beforeAll(() => {
themeManager.setActiveTheme(DEFAULT_THEME.name);
themeManager.setTerminalBackground(undefined);
});
/**
* Helper to replicate the colorization logic for expected values.
*/
const expectedColorize = (str: string, color: string) => {
const resolved = resolveColor(color);
if (!resolved) return str;
if (resolved.startsWith('#')) return chalk.hex(resolved)(str);
const mappedHex = INK_NAME_TO_HEX_MAP[resolved];
if (mappedHex) return chalk.hex(mappedHex)(str);
// Simple mapping for standard colors if they aren't in the hex map
switch (resolved) {
case 'black':
return chalk.black(str);
case 'red':
return chalk.red(str);
case 'green':
return chalk.green(str);
case 'yellow':
return chalk.yellow(str);
case 'blue':
return chalk.blue(str);
case 'magenta':
return chalk.magenta(str);
case 'cyan':
return chalk.cyan(str);
case 'white':
return chalk.white(str);
case 'gray':
case 'grey':
return chalk.gray(str);
default:
return str;
}
};
const primary = (str: string) => expectedColorize(str, theme.text.primary);
const accent = (str: string) => expectedColorize(str, theme.text.accent);
const link = (str: string) => expectedColorize(str, theme.text.link);
describe('parseMarkdownToANSI', () => {
it('should return plain text with default color', () => {
const input = 'Hello world';
const output = parseMarkdownToANSI(input);
expect(output).toBe(primary(input));
});
it('should handle bold text', () => {
const input = 'This is **bold** text';
const output = parseMarkdownToANSI(input);
expect(output).toBe(
`${primary('This is ')}${chalk.bold(primary('bold'))}${primary(' text')}`,
);
});
it('should handle italic text with *', () => {
const input = 'This is *italic* text';
const output = parseMarkdownToANSI(input);
expect(output).toBe(
`${primary('This is ')}${chalk.italic(primary('italic'))}${primary(' text')}`,
);
});
it('should handle italic text with _', () => {
const input = 'This is _italic_ text';
const output = parseMarkdownToANSI(input);
expect(output).toBe(
`${primary('This is ')}${chalk.italic(primary('italic'))}${primary(' text')}`,
);
});
it('should handle bold italic text with ***', () => {
const input = 'This is ***bold italic*** text';
const output = parseMarkdownToANSI(input);
expect(output).toBe(
`${primary('This is ')}${chalk.bold(chalk.italic(primary('bold italic')))}${primary(' text')}`,
);
});
it('should handle strikethrough text', () => {
const input = 'This is ~~strikethrough~~ text';
const output = parseMarkdownToANSI(input);
expect(output).toBe(
`${primary('This is ')}${chalk.strikethrough(primary('strikethrough'))}${primary(' text')}`,
);
});
it('should handle inline code', () => {
const input = 'This is `code` text';
const output = parseMarkdownToANSI(input);
expect(output).toBe(
`${primary('This is ')}${accent('code')}${primary(' text')}`,
);
});
it('should handle links', () => {
const input = 'Check [this link](https://example.com)';
const output = parseMarkdownToANSI(input);
expect(output).toBe(
`${primary('Check ')}${primary('this link')}${primary(' (')}${link(
'https://example.com',
)}${primary(')')}`,
);
});
it('should handle bare URLs', () => {
const input = 'Visit https://google.com now';
const output = parseMarkdownToANSI(input);
expect(output).toBe(
`${primary('Visit ')}${link('https://google.com')}${primary(' now')}`,
);
});
it('should handle underline tags', () => {
const input = 'This is <u>underlined</u> text';
const output = parseMarkdownToANSI(input);
expect(output).toBe(
`${primary('This is ')}${chalk.underline(primary('underlined'))}${primary(' text')}`,
);
});
it('should handle complex mixed markdown', () => {
const input = '**Bold** and *italic* and `code` and [link](url)';
const output = parseMarkdownToANSI(input);
expect(output).toBe(
`${chalk.bold(primary('Bold'))}${primary(' and ')}${chalk.italic(
primary('italic'),
)}${primary(' and ')}${accent('code')}${primary(' and ')}${primary(
'link',
)}${primary(' (')}${link('url')}${primary(')')}`,
);
});
it('should respect custom default color', () => {
const customColor = 'cyan';
const input = 'Hello **world**';
const output = parseMarkdownToANSI(input, customColor);
const cyan = (str: string) => expectedColorize(str, 'cyan');
expect(output).toBe(`${cyan('Hello ')}${chalk.bold(cyan('world'))}`);
});
it('should handle nested formatting in bold/italic', () => {
const input = '**Bold with *italic* inside**';
const output = parseMarkdownToANSI(input);
expect(output).toBe(
chalk.bold(
`${primary('Bold with ')}${chalk.italic(primary('italic'))}${primary(
' inside',
)}`,
),
);
});
it('should handle hex colors as default', () => {
const hexColor = '#ff00ff';
const input = 'Hello **world**';
const output = parseMarkdownToANSI(input, hexColor);
const magenta = (str: string) => chalk.hex('#ff00ff')(str);
expect(output).toBe(
`${magenta('Hello ')}${chalk.bold(magenta('world'))}`,
);
});
it('should override default color with link color', () => {
const input = 'Check [link](url)';
const output = parseMarkdownToANSI(input, 'red');
const red = (str: string) => chalk.red(str);
expect(output).toBe(
`${red('Check ')}${red('link')}${red(' (')}${link('url')}${red(')')}`,
);
});
it('should override default color with accent color for code', () => {
const input = 'Code: `const x = 1`';
const output = parseMarkdownToANSI(input, 'green');
const green = (str: string) => chalk.green(str);
const cyan = (str: string) => chalk.cyan(str);
expect(output).toBe(`${green('Code: ')}${cyan('const x = 1')}`);
});
it('should handle nested formatting with color overrides', () => {
const input = '**Bold with `code` inside**';
const output = parseMarkdownToANSI(input);
expect(output).toBe(
chalk.bold(
`${primary('Bold with ')}${accent('code')}${primary(' inside')}`,
),
);
});
describe('LaTeX conversion (issue #25656)', () => {
it('converts LaTeX in plain text (no markdown tokens)', () => {
const input = 'No cycles $\\to$ no deadlock';
const output = parseMarkdownToANSI(input);
expect(output).toBe(primary('No cycles → no deadlock'));
});
it('converts LaTeX in the set example from the issue', () => {
const input = 'Processes $\\{P_0, \\dots, P_n\\}$';
const output = parseMarkdownToANSI(input);
expect(output).toBe(primary('Processes {P₀, …, Pₙ}'));
});
it('preserves LaTeX inside inline code', () => {
// Content between backticks must be rendered verbatim — conversion
// must NOT be applied inside code spans, even when the code contains
// `$...$` that would otherwise be stripped.
const input = 'use `$\\to$` for an arrow';
const output = parseMarkdownToANSI(input);
expect(output).toBe(
`${primary('use ')}${accent('$\\to$')}${primary(' for an arrow')}`,
);
});
it('converts LaTeX in slices around markdown tokens', () => {
const input = '$\\alpha$ is **bold** and $\\beta$ is plain';
const output = parseMarkdownToANSI(input);
expect(output).toBe(
`${primary('α is ')}${chalk.bold(primary('bold'))}${primary(
' and β is plain',
)}`,
);
});
it('leaves Windows paths alone', () => {
const input = 'Path: C:\\Users\\foo';
const output = parseMarkdownToANSI(input);
expect(output).toBe(primary('Path: C:\\Users\\foo'));
});
it('leaves currency amounts alone', () => {
const input = 'It costs $5.99 total';
const output = parseMarkdownToANSI(input);
expect(output).toBe(primary('It costs $5.99 total'));
});
});
});
});
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