1 files changed, 55 insertions, 0 deletions
diff --git a/testing/web-platform/tests/mediacapture-image/resources/imagecapture-helpers.js b/testing/web-platform/tests/mediacapture-image/resources/imagecapture-helpers.js
new file mode 100644
index 0000000000..8f142cff41
--- /dev/null
+++ b/testing/web-platform/tests/mediacapture-image/resources/imagecapture-helpers.js
@@ -0,0 +1,55 @@
+'use strict';
+
+// These tests rely on the User Agent providing an implementation of
+// platform image capture 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-imagecapture.js');
+}
+
+async function initialize_image_capture_tests() {
+  if (typeof ImageCaptureTest === '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();
+    }
+  }
+  assert_implements(ImageCaptureTest, 'ImageCaptureTest is unavailable');
+  let imageCaptureTest = new ImageCaptureTest();
+  await imageCaptureTest.initialize();
+  return imageCaptureTest;
+}
+
+function image_capture_test(func, name, properties) {
+  promise_test(async (t) => {
+    let imageCaptureTest = await initialize_image_capture_tests();
+    try {
+      await func(t, imageCaptureTest);
+    } finally {
+      await imageCaptureTest.reset();
+    };
+  }, name, properties);
+}
+
+function assert_point2d_array_approx_equals(actual, expected, epsilon) {
+  assert_equals(actual.length, expected.length, 'length');
+  for (var i = 0; i < actual.length; ++i) {
+    assert_approx_equals(actual[i].x, expected[i].x, epsilon, 'x');
+    assert_approx_equals(actual[i].y, expected[i].y, epsilon, 'y');
+  }
+}