1 files changed, 56 insertions, 0 deletions
diff --git a/LayoutTests/fast/dom/DeviceOrientation/script-tests/null-values.js b/LayoutTests/fast/dom/DeviceOrientation/script-tests/null-values.js
new file mode 100644
index 0000000..ccde66a
--- /dev/null
+++ b/LayoutTests/fast/dom/DeviceOrientation/script-tests/null-values.js
@@ -0,0 +1,56 @@
+description('Tests using null values for some of the event properties.');
+
+var mockEvent;
+function setMockOrientation(alpha, beta, gamma) {
+    mockEvent = {alpha: alpha, beta: beta, gamma: gamma};
+    if (window.layoutTestController)
+        layoutTestController.setMockDeviceOrientation(
+            null != mockEvent.alpha, null == mockEvent.alpha ? 0 : mockEvent.alpha,
+            null != mockEvent.beta, null == mockEvent.beta ? 0 : mockEvent.beta,
+            null != mockEvent.gamma, null == mockEvent.gamma ? 0 : mockEvent.gamma);
+    else
+        debug('This test can not be run without the LayoutTestController');
+}
+
+var deviceOrientationEvent;
+function checkOrientation(event) {
+    deviceOrientationEvent = event;
+    shouldBe('deviceOrientationEvent.alpha', 'mockEvent.alpha');
+    shouldBe('deviceOrientationEvent.beta', 'mockEvent.beta');
+    shouldBe('deviceOrientationEvent.gamma', 'mockEvent.gamma');
+}
+
+function firstListener(event) {
+    checkOrientation(event);
+    window.removeEventListener('deviceorientation', firstListener);
+
+    setMockOrientation(1.1, null, null);
+    window.addEventListener('deviceorientation', secondListener);
+}
+
+function secondListener(event) {
+    checkOrientation(event);
+    window.removeEventListener('deviceorientation', secondListener);
+
+    setMockOrientation(null, 2.2, null);
+    window.addEventListener('deviceorientation', thirdListener);
+}
+
+function thirdListener(event) {
+    checkOrientation(event);
+    window.removeEventListener('deviceorientation', thirdListener);
+
+    setMockOrientation(null, null, 3.3);
+    window.addEventListener('deviceorientation', fourthListener);
+}
+
+function fourthListener(event) {
+    checkOrientation(event);
+    finishJSTest();
+}
+
+setMockOrientation(null, null, null);
+window.addEventListener('deviceorientation', firstListener);
+
+window.jsTestIsAsync = true;
+window.successfullyParsed = true;