1 files changed, 53 insertions, 0 deletions
diff --git a/testing/web-platform/tests/mixed-content/generic/sanity-checker.js b/testing/web-platform/tests/mixed-content/generic/sanity-checker.js
new file mode 100644
index 0000000000..55a103adf0
--- /dev/null
+++ b/testing/web-platform/tests/mixed-content/generic/sanity-checker.js
@@ -0,0 +1,53 @@
+// The SanityChecker is used in debug mode to identify problems with the
+// structure of the testsuite and to force early test failures.
+// In release mode it is mocked out to do nothing.
+function SanityChecker()  {}
+
+SanityChecker.prototype.checkScenario = function(scenario, resourceInvoker) {
+  // Check if scenario is valid.
+  test(function() {
+    var expectedFields = SPEC_JSON["test_expansion_schema"];
+
+    for (var field in expectedFields) {
+      if (field == "expansion")
+        continue
+
+      assert_own_property(scenario, field,
+                          "The scenario should contain field '" + field + "'.")
+
+      var expectedFieldList = expectedFields[field];
+      if (!expectedFieldList.hasOwnProperty('length')) {
+        var expectedFieldList = [];
+        for (var key in expectedFields[field]) {
+          expectedFieldList = expectedFieldList.concat(expectedFields[field][key])
+        }
+      }
+      assert_in_array(scenario[field], expectedFieldList,
+                      "Scenario's " + field + " is one of: " +
+                      expectedFieldList.join(", ")) + "."
+    }
+
+    // Check if the protocol is matched.
+    assert_equals(scenario["source_scheme"] + ":", location.protocol,
+                  "Protocol of the test page should match the scenario.")
+
+    assert_own_property(resourceInvoker, scenario.subresource,
+                        "Subresource should be supported");
+
+  }, "[MixedContentTestCase] The test scenario should be valid.");
+}
+
+// For easier debugging runs, we can fail a test earlier.
+SanityChecker.prototype.setFailTimeout = function(test, timeout) {
+  // Due to missing implementations, tests time out, so we fail them early.
+  // TODO(kristijanburnik): Once WPT rolled in:
+  //   https://github.com/w3c/testharness.js/pull/127
+  // Refactor to make use of step_timeout.
+  setTimeout(function() {
+    test.step(function() {
+      assert_equals(test.phase, test.phases.COMPLETE,
+                    "Expected test to complete.");
+      test.done();
+    })
+  }, timeout || 1000);
+}