test: add comprehensive tests for v4 features

Add unit tests for sidebar manager, command palette, print preview, main process utilities, and markdown extensions. Update jest config to exclude untestable Electron-specific files from coverage and raise coverage thresholds.
2026-08-02 10:00:17 +05:30 · 2026-03-04 16:28:36 +05:30
parent 336b24365d
commit 15903e782a
6 changed files with 610 additions and 4 deletions
@@ -0,0 +1,109 @@
+/**
+ * @jest-environment jsdom
+ */
+
+/**
+ * Tests for PrintPreview
+ * Tests print dialog options, open/close, and preview rendering
+ */
+
+describe('PrintPreview', () => {
+    beforeEach(() => {
+        // Mock electron require for executePrint
+        jest.mock('electron', () => ({
+            ipcRenderer: { send: jest.fn(), invoke: jest.fn() }
+        }), { virtual: true });
+
+        document.body.innerHTML = `
+            <div class="dialog-overlay hidden" id="print-preview-overlay">
+                <button id="print-preview-close"></button>
+                <button id="print-cancel"></button>
+                <button id="print-execute"></button>
+                <select id="print-paper-size"><option value="A4">A4</option><option value="Letter">Letter</option></select>
+                <select id="print-orientation"><option value="portrait">Portrait</option><option value="landscape">Landscape</option></select>
+                <select id="print-margins"><option value="default">Default</option></select>
+                <input type="range" id="print-scale" value="100">
+                <span id="print-scale-value">100%</span>
+                <input type="checkbox" id="print-headers" checked>
+                <input type="checkbox" id="print-background" checked>
+                <select id="print-pages"><option value="all">All</option><option value="custom">Custom</option></select>
+                <input type="text" id="print-page-range" class="hidden">
+                <iframe id="print-preview-frame"></iframe>
+            </div>
+        `;
+    });
+
+    test('getOptions returns default values', () => {
+        const { PrintPreview } = require('../src/print-preview');
+        const preview = new PrintPreview();
+        const options = preview.getOptions();
+        expect(options.paperSize).toBe('A4');
+        expect(options.orientation).toBe('portrait');
+        expect(options.scale).toBe(100);
+        expect(options.headers).toBe(true);
+        expect(options.background).toBe(true);
+        expect(options.pages).toBe('all');
+        expect(options.margins).toBe('default');
+        expect(options.pageRange).toBe('');
+    });
+
+    test('opens and closes', () => {
+        const { PrintPreview } = require('../src/print-preview');
+        const preview = new PrintPreview();
+        preview.open('<p>Test</p>');
+        expect(document.getElementById('print-preview-overlay').classList.contains('hidden')).toBe(false);
+        preview.close();
+        expect(document.getElementById('print-preview-overlay').classList.contains('hidden')).toBe(true);
+    });
+
+    test('updateScaleLabel reflects slider value', () => {
+        const { PrintPreview } = require('../src/print-preview');
+        const preview = new PrintPreview();
+        document.getElementById('print-scale').value = '75';
+        preview.updateScaleLabel();
+        expect(document.getElementById('print-scale-value').textContent).toBe('75%');
+    });
+
+    test('close button closes preview', () => {
+        const { PrintPreview } = require('../src/print-preview');
+        const preview = new PrintPreview();
+        preview.open('<p>Test</p>');
+        document.getElementById('print-preview-close').click();
+        expect(document.getElementById('print-preview-overlay').classList.contains('hidden')).toBe(true);
+    });
+
+    test('cancel button closes preview', () => {
+        const { PrintPreview } = require('../src/print-preview');
+        const preview = new PrintPreview();
+        preview.open('<p>Test</p>');
+        document.getElementById('print-cancel').click();
+        expect(document.getElementById('print-preview-overlay').classList.contains('hidden')).toBe(true);
+    });
+
+    test('getOptions reflects changed values', () => {
+        const { PrintPreview } = require('../src/print-preview');
+        const preview = new PrintPreview();
+
+        // Change paper size to Letter
+        const paperSelect = document.getElementById('print-paper-size');
+        paperSelect.value = 'Letter';
+
+        // Change scale
+        document.getElementById('print-scale').value = '50';
+
+        // Uncheck headers
+        document.getElementById('print-headers').checked = false;
+
+        const options = preview.getOptions();
+        expect(options.paperSize).toBe('Letter');
+        expect(options.scale).toBe(50);
+        expect(options.headers).toBe(false);
+    });
+
+    test('stores last content for refresh', () => {
+        const { PrintPreview } = require('../src/print-preview');
+        const preview = new PrintPreview();
+        preview.open('<p>Hello World</p>');
+        expect(preview._lastContent).toBe('<p>Hello World</p>');
+    });
+});