Import w3c tests for the service workers

third_party/WebKit/LayoutTests/imported/wpt/service-workers/service-worker/resources/override_assert_object_equals.js

+// .body attribute of Request and Response object are experimental feture. It is
+// enabled when --enable-experimental-web-platform-features flag is set.
+// Touching this attribute can change the behavior of the objects. To avoid
+// touching it while comparing the objects in LayoutTest, we overwrite
+// assert_object_equals method.
+
+(function() {
+  var original_assert_object_equals = self.assert_object_equals;
+  function _brand(object) {
+    return Object.prototype.toString.call(object).match(/^\[object (.*)\]$/)[1];
+  }
+  var assert_request_equals = function(actual, expected, prefix) {
+    if (typeof actual !== 'object') {
+      assert_equals(actual, expected, prefix);
+      return;
+    }
+    assert_true(actual instanceof Request, prefix);
+    assert_true(expected instanceof Request, prefix);
+    assert_equals(actual.bodyUsed, expected.bodyUsed, prefix + '.bodyUsed');
+    assert_equals(actual.method, expected.method, prefix + '.method');
+    assert_equals(actual.url, expected.url, prefix + '.url');
+    original_assert_object_equals(actual.headers, expected.headers,
+                                  prefix + '.headers');
+    assert_equals(actual.context, expected.context, prefix + '.context');
+    assert_equals(actual.referrer, expected.referrer, prefix + '.referrer');
+    assert_equals(actual.mode, expected.mode, prefix + '.mode');
+    assert_equals(actual.credentials, expected.credentials,
+                  prefix + '.credentials');
+    assert_equals(actual.cache, expected.cache, prefix + '.cache');
+  };
+  var assert_response_equals = function(actual, expected, prefix) {
+    if (typeof actual !== 'object') {
+      assert_equals(actual, expected, prefix);
+      return;
+    }
+    assert_true(actual instanceof Response, prefix);
+    assert_true(expected instanceof Response, prefix);
+    assert_equals(actual.bodyUsed, expected.bodyUsed, prefix + '.bodyUsed');
+    assert_equals(actual.type, expected.type, prefix + '.type');
+    assert_equals(actual.url, expected.url, prefix + '.url');
+    assert_equals(actual.status, expected.status, prefix + '.status');
+    assert_equals(actual.statusText, expected.statusText,
+                  prefix + '.statusText');
+    original_assert_object_equals(actual.headers, expected.headers,
+                                  prefix + '.headers');
+  };
+  var assert_object_equals = function(actual, expected, description) {
+    var prefix = (description ? description + ': ' : '') + _brand(expected);
+    if (expected instanceof Request) {
+      assert_request_equals(actual, expected, prefix);
+    } else if (expected instanceof Response) {
+      assert_response_equals(actual, expected, prefix);
+    } else {
+      original_assert_object_equals(actual, expected, description);
+    }
+  };
+  self.assert_object_equals = assert_object_equals;
+})();