| <!DOCTYPE html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="resources/shapedetection-helpers.js"></script> |
| <script> |
| |
| // These tests verify that a Detector's detect() works on an HTMLCanvasElement |
| // and on an OffscreenCanvas. |
| const canvasElementTests = |
| [ |
| { |
| createDetector: () => { return new FaceDetector(); }, |
| createCanvas: () => { return document.createElement("canvas"); }, |
| mockTestName: "FaceDetectionTest", |
| detectionResultTest: FaceDetectorDetectionResultTest, |
| name: "Face - detect(HTMLCanvasElement)" |
| }, |
| { |
| createDetector: () => { return new FaceDetector(); }, |
| createCanvas: () => { return new OffscreenCanvas(300, 150); }, |
| mockTestName: "FaceDetectionTest", |
| detectionResultTest: FaceDetectorDetectionResultTest, |
| name: "Face - detect(OffscreenCanvas)" |
| }, |
| { |
| createDetector: () => { return new BarcodeDetector(); }, |
| createCanvas: () => { return document.createElement("canvas"); }, |
| mockTestName: "BarcodeDetectionTest", |
| detectionResultTest: BarcodeDetectorDetectionResultTest, |
| name: "Barcode - detect(HTMLCanvasElement)" |
| }, |
| { |
| createDetector: () => { return new BarcodeDetector(); }, |
| createCanvas: () => { return new OffscreenCanvas(300, 150); }, |
| mockTestName: "BarcodeDetectionTest", |
| detectionResultTest: BarcodeDetectorDetectionResultTest, |
| name: "Barcode - detect(OffscreenCanvas)" |
| } |
| ]; |
| |
| for (let canvasElementTest of canvasElementTests) { |
| detection_test(canvasElementTest.mockTestName, async (t, detectionTest) => { |
| const img = new Image(); |
| const imgWatcher = new EventWatcher(t, img, ["load", "error"]); |
| img.src = "/images/green-16x16.png"; |
| await imgWatcher.wait_for("load"); |
| const canvas = canvasElementTest.createCanvas(); |
| canvas.getContext("2d").drawImage(img, 0, 0); |
| |
| const detector = canvasElementTest.createDetector(); |
| const detectionResult = await detector.detect(canvas); |
| canvasElementTest.detectionResultTest(detectionResult, detectionTest); |
| }, canvasElementTest.name); |
| } |
| |
| function FaceDetectorDetectionResultTest(detectionResult, mockTest) { |
| const imageReceivedByMock = |
| mockTest.MockFaceDetectionProvider().getFrameData(); |
| assert_equals(imageReceivedByMock.byteLength, 180000, "Image length"); |
| const GREEN_PIXEL = 0xFF00FF00; |
| assert_equals(imageReceivedByMock[0], GREEN_PIXEL, "Pixel color"); |
| assert_equals(detectionResult.length, 3, "Number of faces"); |
| } |
| |
| function BarcodeDetectorDetectionResultTest(detectionResult, mockTest) { |
| assert_equals(detectionResult.length, 2, "Number of barcodes"); |
| assert_equals(detectionResult[0].rawValue, "cats", "barcode 1"); |
| assert_equals(detectionResult[0].format, "qr_code", "barcode 1 format"); |
| assert_equals(detectionResult[1].rawValue, "dogs", "barcode 2"); |
| assert_equals(detectionResult[1].format, "code_128", "barcode 2 format"); |
| } |
| |
| </script> |
