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amitwh
8bada008b3
Add src/main/ImageOperations.js (convert/resize/compress/rotate via
sharp), modeled on PDFOperations.js's executeOperation dispatcher.
Wire ipcMain.handle('process-image-operation', ...) in main.js using
sanitizeErrorMessage() on error paths, and replace the 5 stale/unused
image-* channel names in preload.js's ALLOWED_SEND_CHANNELS with
process-image-operation + select-image-folder (mirroring
select-pdf-folder for a later batch-UI task).
Amit Haridas
59 lines
2.5 KiB
JavaScript
59 lines
2.5 KiB
JavaScript
const sharp = require('sharp');
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const fs = require('fs');
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const os = require('os');
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const path = require('path');
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const ImageOperations = require('../../src/main/ImageOperations');
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describe('ImageOperations', () => {
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let tmpDir, inputPath;
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beforeEach(async () => {
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tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'imgops_'));
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inputPath = path.join(tmpDir, 'in.png');
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await sharp({ create: { width: 100, height: 100, channels: 3, background: { r: 255, g: 0, b: 0 } } })
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.png()
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.toFile(inputPath);
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});
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afterEach(() => fs.rmSync(tmpDir, { recursive: true, force: true }));
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test('imageConvert converts PNG to JPEG', async () => {
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const outputPath = path.join(tmpDir, 'out.jpg');
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const result = await ImageOperations.imageConvert({ inputPath, outputPath, format: 'jpeg' });
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expect(result.success).toBe(true);
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expect(fs.existsSync(outputPath)).toBe(true);
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const meta = await sharp(outputPath).metadata();
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expect(meta.format).toBe('jpeg');
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});
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test('imageResize resizes to given width preserving aspect', async () => {
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const outputPath = path.join(tmpDir, 'out.png');
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await ImageOperations.imageResize({ inputPath, outputPath, width: 50, height: null, fit: 'inside' });
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const meta = await sharp(outputPath).metadata();
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expect(meta.width).toBe(50);
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});
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test('imageRotate rotates by given angle', async () => {
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const outputPath = path.join(tmpDir, 'out.png');
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await ImageOperations.imageRotate({ inputPath, outputPath, angle: 90 });
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const meta = await sharp(outputPath).metadata();
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expect(meta.width).toBe(100); // 90deg on square stays square
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});
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test('imageCompress produces a smaller or equal-size JPEG at low quality', async () => {
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const jpegPath = path.join(tmpDir, 'in.jpg');
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await sharp(inputPath).jpeg({ quality: 100 }).toFile(jpegPath);
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const outputPath = path.join(tmpDir, 'compressed.jpg');
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await ImageOperations.imageCompress({ inputPath: jpegPath, outputPath, quality: 10 });
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expect(fs.statSync(outputPath).size).toBeLessThanOrEqual(fs.statSync(jpegPath).size);
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});
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test('executeOperation dispatches to the correct function', async () => {
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const outputPath = path.join(tmpDir, 'out.png');
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const result = await ImageOperations.executeOperation('rotate', { inputPath, outputPath, angle: 180 });
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expect(result.success).toBe(true);
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});
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test('unknown operation throws', async () => {
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await expect(ImageOperations.executeOperation('bogus', {})).rejects.toThrow();
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});
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});
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