@realfavicongenerator/image-adapter-node
Version:
Image adapter for Node
111 lines (110 loc) • 5.53 kB
JavaScript
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
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Object.defineProperty(exports, "__esModule", { value: true });
const adapter_1 = require("./adapter");
const fs = __importStar(require("fs"));
const path = __importStar(require("path"));
const sharp_1 = __importDefault(require("sharp"));
describe('NodeImageAdapter', () => {
describe('getImageSize', () => {
it('should return correct dimensions for a PNG image', () => __awaiter(void 0, void 0, void 0, function* () {
const adapter = yield (0, adapter_1.getNodeImageAdapter)();
// Read the test image from fixtures
const imagePath = path.join(__dirname, '../fixtures/test-image.png');
const imageBuffer = fs.readFileSync(imagePath);
// Convert to data URL
const base64 = imageBuffer.toString('base64');
const dataUrl = `data:image/png;base64,${base64}`;
// Get image size
const size = yield adapter.getImageSize(dataUrl);
// Assert dimensions match the test image (100x50)
expect(size.width).toBe(100);
expect(size.height).toBe(50);
}));
});
describe('convertSvgToPng', () => {
it('should convert an SVG to a PNG buffer', () => __awaiter(void 0, void 0, void 0, function* () {
const adapter = yield (0, adapter_1.getNodeImageAdapter)();
// Create an SVG with a blue rectangle
const svg = adapter.createSvg();
svg.size(200, 150);
svg.rect(200, 150).fill('#0000ff');
// Convert to PNG
const pngBuffer = yield adapter.convertSvgToPng(svg);
// Verify it's a valid PNG buffer
expect(Buffer.isBuffer(pngBuffer)).toBe(true);
// Verify the PNG has correct dimensions using sharp
const metadata = yield (0, sharp_1.default)(pngBuffer).metadata();
expect(metadata.format).toBe('png');
expect(metadata.width).toBe(200);
expect(metadata.height).toBe(150);
}));
});
describe('getImageData', () => {
it('should resize an image and return raw pixel data', () => __awaiter(void 0, void 0, void 0, function* () {
const adapter = yield (0, adapter_1.getNodeImageAdapter)();
// Read the test image from fixtures
const imagePath = path.join(__dirname, '../fixtures/test-image.png');
const imageBuffer = fs.readFileSync(imagePath);
// Convert to data URL
const base64 = imageBuffer.toString('base64');
const dataUrl = `data:image/png;base64,${base64}`;
// Get raw image data resized to 80x80
const rawData = yield adapter.getImageData(dataUrl, 80);
// Read the reference image and convert to raw data
const referencePath = path.join(__dirname, '../fixtures/test-image-small-square.png');
const referenceBuffer = fs.readFileSync(referencePath);
const referenceRawData = yield (0, sharp_1.default)(referenceBuffer)
.raw()
.toBuffer();
// Compare the raw data
expect(Buffer.isBuffer(rawData)).toBe(true);
expect(rawData.length).toBe(referenceRawData.length);
expect(rawData.toString('hex')).toBe(referenceRawData.toString('hex'));
}));
});
});