1 files changed, 54 insertions, 0 deletions
diff --git a/testing/web-platform/tests/shape-detection/detection-on-worker.https.worker.js b/testing/web-platform/tests/shape-detection/detection-on-worker.https.worker.js
new file mode 100644
index 0000000000..3981c6fdc8
--- /dev/null
+++ b/testing/web-platform/tests/shape-detection/detection-on-worker.https.worker.js
@@ -0,0 +1,54 @@
+importScripts("/resources/testharness.js");
+importScripts("/resources/test-only-api.js");
+importScripts("resources/shapedetection-helpers.js");
+
+'use strict';
+
+// These tests verify that a Detector's detect() works on an
+// ImageBitmap on workers.
+const imageBitmapTests =
+    [
+      {
+        createDetector: () => { return new FaceDetector(); },
+        mockTestName: "FaceDetectionTest",
+        resultSize: 3, // Number of faces
+        detectorType: "Face"
+      },
+      {
+        createDetector: () => { return new BarcodeDetector(); },
+        mockTestName: "BarcodeDetectionTest",
+        resultSize: 2, // Number of barcodes
+        detectorType: "Barcode"
+      },
+      {
+        createDetector: () => { return new TextDetector(); },
+        mockTestName: "TextDetectionTest",
+        resultSize: 2, // Number of text blocks
+        detectorType: "Text"
+      }
+    ];
+
+for (let imageBitmapTest of imageBitmapTests) {
+  // ImageBitmap is of transferable type and can be sent to and
+  // tested on worker.
+  detection_test(imageBitmapTest.mockTestName, async (t, detectionTest) => {
+    const img = createTestImage();
+    const theImageBitmap = await createImageBitmap(img);
+    const detector = imageBitmapTest.createDetector();
+    const detectionResult = await detector.detect(theImageBitmap);
+    assert_equals(detectionResult.length, imageBitmapTest.resultSize,
+      `Number of ${imageBitmapTest.detectorType}`);
+  }, `${imageBitmapTest.detectorType} Detector detect(ImageBitmap) on worker`);
+}
+
+function createTestImage() {
+  const image = new OffscreenCanvas(100, 50);
+  const imgctx = image.getContext('2d');
+  imgctx.fillStyle = "#F00";
+  imgctx.fillRect(0, 0, 2, 2);
+  imgctx.fillStyle = "#0F0";
+  imgctx.fillRect(0, 0, 1, 1);
+  return image;
+}
+
+done();