MCP PDF

import assert from 'node:assert/strict'; import { existsSync, mkdirSync, writeFileSync } from 'node:fs'; import { tmpdir } from 'node:os'; import { join } from 'node:path'; import { describe, test } from 'node:test'; // Import functions from source with proper TypeScript types import { getSystemFont, hasEmoji, needsUnicodeFont, PDF_STANDARD_FONTS, resolveFont } from '../../src/lib/fonts.ts'; describe('PDF_STANDARD_FONTS', (): void => { test('should contain all 14 standard PDF fonts', (): void => { assert.strictEqual(PDF_STANDARD_FONTS.length, 14); // Verify all standard fonts are present const expectedFonts = ['Helvetica', 'Helvetica-Bold', 'Helvetica-Oblique', 'Helvetica-BoldOblique', 'Times-Roman', 'Times-Bold', 'Times-Italic', 'Times-BoldItalic', 'Courier', 'Courier-Bold', 'Courier-Oblique', 'Courier-BoldOblique', 'Symbol', 'ZapfDingbats'] as const; for (const font of expectedFonts) { assert.ok((PDF_STANDARD_FONTS as readonly string[]).includes(font), `Should include ${font}`); } }); }); describe('hasEmoji', (): void => { test('returns false for ASCII-only text', (): void => { assert.strictEqual(hasEmoji('Hello World'), false); assert.strictEqual(hasEmoji('Test 123'), false); assert.strictEqual(hasEmoji(''), false); }); test('returns false for Latin-1 characters', (): void => { assert.strictEqual(hasEmoji('Café'), false); assert.strictEqual(hasEmoji('résumé'), false); }); test('returns false for non-emoji Unicode', (): void => { assert.strictEqual(hasEmoji('你好'), false); assert.strictEqual(hasEmoji('こんにちは'), false); assert.strictEqual(hasEmoji('Привет'), false); }); test('returns false for Greek letters (render fine in standard fonts)', (): void => { assert.strictEqual(hasEmoji('Ξ'), false, 'Greek Xi should not be detected as emoji'); assert.strictEqual(hasEmoji('Δ'), false, 'Greek Delta should not be detected as emoji'); assert.strictEqual(hasEmoji('Ω'), false, 'Greek Omega should not be detected as emoji'); }); test('returns false for geometric shapes (render fine in standard fonts)', (): void => { assert.strictEqual(hasEmoji('△'), false, 'White triangle should not be detected as emoji'); assert.strictEqual(hasEmoji('○'), false, 'White circle should not be detected as emoji'); assert.strictEqual(hasEmoji('◆'), false, 'Black diamond should not be detected as emoji'); }); test('correctly identifies emoji per Unicode Standard', (): void => { // emoji-regex follows the official Unicode emoji list // ☑, ⚠, ✂ ARE emoji per Unicode Standard (they have color versions!) assert.strictEqual(hasEmoji('☑'), true, 'Checked ballot box IS an emoji per Unicode'); assert.strictEqual(hasEmoji('⚠'), true, 'Warning sign IS an emoji per Unicode'); assert.strictEqual(hasEmoji('✂'), true, 'Scissors IS an emoji per Unicode'); // These are NOT on the official emoji list assert.strictEqual(hasEmoji('☐'), false, 'Ballot box is not an emoji'); assert.strictEqual(hasEmoji('★'), false, 'Star is not an emoji'); assert.strictEqual(hasEmoji('✓'), false, 'Check mark is not an emoji'); assert.strictEqual(hasEmoji('✗'), false, 'X mark is not an emoji'); }); test('returns true for true color emoji (U+1F300-U+1F9FF)', (): void => { assert.strictEqual(hasEmoji('Hello 👋'), true, 'Waving hand is true emoji'); assert.strictEqual(hasEmoji('😀'), true, 'Grinning face is true emoji'); assert.strictEqual(hasEmoji('🎉'), true, 'Party popper is true emoji'); assert.strictEqual(hasEmoji('🚀'), true, 'Rocket is true emoji'); }); test('returns true for extended emoji (U+1FA00-U+1FAFF)', (): void => { assert.strictEqual(hasEmoji('🪀'), true, 'Yo-yo is extended emoji'); assert.strictEqual(hasEmoji('🫶'), true, 'Heart hands is extended emoji'); }); test('returns true for various true emoji categories', (): void => { assert.strictEqual(hasEmoji('💙'), true, 'Blue heart is true emoji'); assert.strictEqual(hasEmoji('📱'), true, 'Mobile phone is true emoji'); assert.strictEqual(hasEmoji('🔥'), true, 'Fire is true emoji'); assert.strictEqual(hasEmoji('🏆'), true, 'Trophy is true emoji'); }); test('detects emoji in mixed content', (): void => { assert.strictEqual(hasEmoji('Skills: TypeScript 💙'), true); assert.strictEqual(hasEmoji('First place 🏆'), true); }); test('correctly handles mixed symbols and emoji', (): void => { // Only symbols (not emoji) assert.strictEqual(hasEmoji('Ξ △ ☐ ○'), false, 'Only standard symbols should return false'); // Mixed: symbols + true emoji assert.strictEqual(hasEmoji('Ξ △ ☐ ○ 😀'), true, 'Mix with true emoji should return true'); }); }); describe('needsUnicodeFont', (): void => { test('returns false for ASCII-only text', (): void => { assert.strictEqual(needsUnicodeFont('Hello World'), false); assert.strictEqual(needsUnicodeFont('Test 123'), false); assert.strictEqual(needsUnicodeFont(''), false); }); test('returns false for Latin-1 characters', (): void => { assert.strictEqual(needsUnicodeFont('Café'), false); assert.strictEqual(needsUnicodeFont('résumé'), false); assert.strictEqual(needsUnicodeFont('naïve'), false); }); test('returns true for emoji', (): void => { assert.strictEqual(needsUnicodeFont('Hello 👋'), true); assert.strictEqual(needsUnicodeFont('😀 🎉'), true); assert.strictEqual(needsUnicodeFont('Test ✅'), true); }); test('returns true for CJK characters', (): void => { assert.strictEqual(needsUnicodeFont('你好'), true); assert.strictEqual(needsUnicodeFont('こんにちは'), true); assert.strictEqual(needsUnicodeFont('안녕하세요'), true); }); test('returns true for Cyrillic', (): void => { assert.strictEqual(needsUnicodeFont('Привет'), true); assert.strictEqual(needsUnicodeFont('Здравствуйте'), true); }); test('returns true for Arabic', (): void => { assert.strictEqual(needsUnicodeFont('مرحبا'), true); assert.strictEqual(needsUnicodeFont('السلام عليكم'), true); }); test('returns correctly for special symbols', (): void => { // ™ and € are beyond Latin-1, need Unicode assert.strictEqual(needsUnicodeFont('™'), true); assert.strictEqual(needsUnicodeFont('€'), true); // © and ® are in Latin-1 (0x00-0xFF), don't need Unicode assert.strictEqual(needsUnicodeFont('©'), false); assert.strictEqual(needsUnicodeFont('®'), false); }); }); describe('getSystemFont', (): void => { test('returns a font path or null', (): void => { const result: string | null = getSystemFont(); // Result should be either null or a string path assert.ok(result === null || typeof result === 'string'); }); test('returns existing font path if found', (): void => { const result: string | null = getSystemFont(); if (result !== null) { assert.ok(existsSync(result), `Font path should exist: ${result}`); } }); }); describe('resolveFont', (): void => { describe('built-in PDF fonts', (): void => { test('resolves Helvetica', async (): Promise<void> => { const result: string | null = await resolveFont('Helvetica'); assert.strictEqual(result, 'Helvetica'); }); test('resolves Helvetica-Bold', async (): Promise<void> => { const result: string | null = await resolveFont('Helvetica-Bold'); assert.strictEqual(result, 'Helvetica-Bold'); }); test('resolves Times-Roman', async (): Promise<void> => { const result: string | null = await resolveFont('Times-Roman'); assert.strictEqual(result, 'Times-Roman'); }); test('resolves Courier-Oblique', async (): Promise<void> => { const result: string | null = await resolveFont('Courier-Oblique'); assert.strictEqual(result, 'Courier-Oblique'); }); test('resolves Symbol', async (): Promise<void> => { const result: string | null = await resolveFont('Symbol'); assert.strictEqual(result, 'Symbol'); }); test('resolves ZapfDingbats', async (): Promise<void> => { const result: string | null = await resolveFont('ZapfDingbats'); assert.strictEqual(result, 'ZapfDingbats'); }); test('resolves all 14 standard fonts', async (): Promise<void> => { for (const fontName of PDF_STANDARD_FONTS) { const result: string | null = await resolveFont(fontName); assert.strictEqual(result, fontName, `Should resolve ${fontName}`); } }); }); describe('auto-detect', (): void => { test('resolves "auto" to system font', async (): Promise<void> => { const result: string | null = await resolveFont('auto'); // Should be either null (no font found) or a path assert.ok(result === null || typeof result === 'string'); }); }); describe('absolute paths', (): void => { test('resolves existing absolute path', async (): Promise<void> => { // Create a temp file to test const tempDir: string = join(tmpdir(), 'mcp-pdf-test'); mkdirSync(tempDir, { recursive: true }); const testFont: string = join(tempDir, 'test.ttf'); writeFileSync(testFont, 'fake font data'); const result: string | null = await resolveFont(testFont); assert.strictEqual(result, testFont); }); test('returns null for non-existent path', async (): Promise<void> => { const result: string | null = await resolveFont('/nonexistent/font.ttf'); assert.strictEqual(result, null); }); test('handles Windows paths', async (): Promise<void> => { const result: string | null = await resolveFont('C:\\Windows\\Fonts\\nonexistent.ttf'); // Should return null since file doesn't exist assert.strictEqual(result, null); }); }); describe('URLs', (): void => { test('downloads font from valid URL', async (): Promise<void> => { // This will actually download - use a small font const url: string = 'https://cdn.jsdelivr.net/npm/@fontsource/noto-sans@5.0.0/files/noto-sans-latin-400-normal.woff2'; const result: string | null = await resolveFont(url); assert.ok(result !== null, 'Should download font'); assert.ok(typeof result === 'string', 'Should return path string'); assert.ok(existsSync(result), 'Downloaded font should exist'); }); test('returns null for invalid URL', async (): Promise<void> => { const result: string | null = await resolveFont('https://invalid.example.com/font.ttf'); assert.strictEqual(result, null); }); }); describe('invalid fonts', (): void => { test('returns null for unknown font name', async (): Promise<void> => { const result: string | null = await resolveFont('UnknownFont'); assert.strictEqual(result, null); }); test('returns null for empty string', async (): Promise<void> => { const result: string | null = await resolveFont(''); assert.strictEqual(result, null); }); }); }); // setupFonts tests skipped - require PDFKit instantiation // These will be tested via integration tests instead