1 files changed, 75 insertions, 0 deletions
diff --git a/testing/web-platform/tests/shape-detection/resources/shapedetection-helpers.js b/testing/web-platform/tests/shape-detection/resources/shapedetection-helpers.js
new file mode 100644
index 0000000000..1b4949b8f6
--- /dev/null
+++ b/testing/web-platform/tests/shape-detection/resources/shapedetection-helpers.js
@@ -0,0 +1,75 @@
+'use strict';
+
+// These tests rely on the User Agent providing an implementation of
+// platform shape detection backends.
+//
+// In Chromium-based browsers this implementation is provided by a polyfill
+// in order to reduce the amount of test-only code shipped to users. To enable
+// these tests the browser must be run with these options:
+//
+//   --enable-blink-features=MojoJS,MojoJSTest
+
+async function loadChromiumResources() {
+  await import('/resources/chromium/mock-barcodedetection.js');
+  await import('/resources/chromium/mock-facedetection.js');
+  await import('/resources/chromium/mock-textdetection.js');
+}
+
+/**
+ * @param {String} detectionTestName
+ * name of mock shape detection test interface,
+ * must be the item of ["FaceDetectionTest", "BarcodeDetectionTest",
+ * "TextDetectionTest"]
+*/
+async function initialize_detection_tests(detectionTestName) {
+  let detectionTest;
+  if (typeof document === 'undefined') {
+    // Use 'self' for workers.
+    if (typeof self[detectionTestName] === 'undefined') {
+      // test-only-api.js is already loaded in worker.js
+      if (isChromiumBased) {
+        await loadChromiumResources();
+      }
+    }
+    detectionTest = new self[detectionTestName]();
+  } else {
+    if (typeof window[detectionTestName] === 'undefined') {
+      const script = document.createElement('script');
+      script.src = '/resources/test-only-api.js';
+      script.async = false;
+      const p = new Promise((resolve, reject) => {
+        script.onload = () => { resolve(); };
+        script.onerror = e => { reject(e); };
+      })
+      document.head.appendChild(script);
+      await p;
+
+      if (isChromiumBased) {
+        await loadChromiumResources();
+      }
+
+    }
+    detectionTest = new window[detectionTestName]();
+  }
+  await detectionTest.initialize();
+  return detectionTest;
+}
+
+function detection_test(detectionTestName, func, name, properties) {
+  promise_test(async t => {
+    let detectionTest = await initialize_detection_tests(detectionTestName);
+    try {
+      await func(t, detectionTest);
+    } finally {
+      await detectionTest.reset();
+    };
+  }, name, properties);
+}
+
+function getArrayBufferFromBigBuffer(bigBuffer) {
+  if (bigBuffer.bytes !== undefined) {
+    return new Uint8Array(bigBuffer.bytes).buffer;
+  }
+  return bigBuffer.sharedMemory.bufferHandle.mapBuffer(0,
+      bigBuffer.sharedMemory.size).buffer;
+}