dart-lang#2398. Update TouchEvent tests to not fail on platforms where it is not defined

Author: sgrekhov

LibTest/html/Element/onTouchCancel_A01_t01.dart

@@ -13,13 +13,18 @@ main() {
   var type = 'touchcancel';
   var x = document.body;
   if (x != null) {
+    var event;
+    try {
+      event = new TouchEvent(type);
+    } catch (_) {
+      // TouchEvent is not present in Safari and Firefox. Nothing to test.
+      return;
+    }
     asyncStart();
-    x.onTouchCancel.listen((e) {
+    x.onTouchLeave.listen((e) {
       Expect.equals(type, e.type);
       asyncEnd();
     });
-
-    var event = new TouchEvent(type);
     x.dispatchEvent(event);
   } else {
     Expect.fail("Body is null");

LibTest/html/Element/onTouchEnd_A01_t01.dart

@@ -13,13 +13,18 @@ main() {
   var type = 'touchend';
   var x = document.body;
   if (x != null) {
+    var event;
+    try {
+      event = new TouchEvent(type);
+    } catch (_) {
+      // TouchEvent is not present in Safari and Firefox. Nothing to test.
+      return;
+    }
     asyncStart();
-    x.onTouchEnd.listen((e) {
+    x.onTouchLeave.listen((e) {
       Expect.equals(type, e.type);
       asyncEnd();
     });
-
-    var event = new TouchEvent(type);
     x.dispatchEvent(event);
   } else {
     Expect.fail("Body is null");

LibTest/html/Element/onTouchEnter_A01_t01.dart

@@ -13,13 +13,18 @@ main() {
   var type = 'touchenter';
   var x = document.body;
   if (x != null) {
+    var event;
+    try {
+      event = new TouchEvent(type);
+    } catch (_) {
+      // TouchEvent is not present in Safari and Firefox. Nothing to test.
+      return;
+    }
     asyncStart();
-    x.onTouchEnter.listen((e) {
+    x.onTouchLeave.listen((e) {
       Expect.equals(type, e.type);
       asyncEnd();
     });
-
-    var event = new TouchEvent(type);
     x.dispatchEvent(event);
   } else {
     Expect.fail("Body is null");

LibTest/html/Element/onTouchLeave_A01_t01.dart

@@ -13,13 +13,18 @@ main() {
   var type = 'touchleave';
   var x = document.body;
   if (x != null) {
+    var event;
+    try {
+      event = new TouchEvent(type);
+    } catch (_) {
+      // TouchEvent is not present in Safari and Firefox. Nothing to test.
+      return;
+    }
     asyncStart();
     x.onTouchLeave.listen((e) {
       Expect.equals(type, e.type);
       asyncEnd();
     });
-
-    var event = new TouchEvent(type);
     x.dispatchEvent(event);
   } else {
     Expect.fail("Body is null");

LibTest/html/Element/onTouchMove_A01_t01.dart

@@ -13,13 +13,18 @@ main() {
   var type = 'touchmove';
   var x = document.body;
   if (x != null) {
+    var event;
+    try {
+      event = new TouchEvent(type);
+    } catch (_) {
+      // TouchEvent is not present in Safari and Firefox. Nothing to test.
+      return;
+    }
     asyncStart();
-    x.onTouchMove.listen((e) {
+    x.onTouchLeave.listen((e) {
       Expect.equals(type, e.type);
       asyncEnd();
     });
-
-    var event = new TouchEvent(type);
     x.dispatchEvent(event);
   } else {
     Expect.fail("Body is null");

LibTest/html/Element/onTouchStart_A01_t01.dart

@@ -13,13 +13,18 @@ main() {
   var type = 'touchstart';
   var x = document.body;
   if (x != null) {
+    var event;
+    try {
+      event = new TouchEvent(type);
+    } catch (_) {
+      // TouchEvent is not present in Safari and Firefox. Nothing to test.
+      return;
+    }
     asyncStart();
-    x.onTouchStart.listen((e) {
+    x.onTouchLeave.listen((e) {
       Expect.equals(type, e.type);
       asyncEnd();
     });
-
-    var event = new TouchEvent(type);
     x.dispatchEvent(event);
   } else {
     Expect.fail("Body is null");

LibTest/html/Element/touchCancelEvent_A01_t01.dart

@@ -14,13 +14,18 @@ main() {
   var type = 'touchcancel';
   var x = document.body;
   if (x != null) {
+    var event;
+    try {
+      event = new TouchEvent(type);
+    } catch (_) {
+      // TouchEvent is not present in Safari and Firefox. Nothing to test.
+      return;
+    }
     asyncStart();
     Element.touchCancelEvent.forElement(x).listen((e) {
       Expect.equals(type, e.type);
       asyncEnd();
     });
-
-    var event = new TouchEvent(type);
     x.dispatchEvent(event);
   } else {
     Expect.fail("Body is null");

LibTest/html/Element/touchEndEvent_A01_t01.dart

@@ -14,13 +14,18 @@ main() {
   var type = 'touchend';
   var x = document.body;
   if (x != null) {
+    var event;
+    try {
+      event = new TouchEvent(type);
+    } catch (_) {
+      // TouchEvent is not present in Safari and Firefox. Nothing to test.
+      return;
+    }
     asyncStart();
     Element.touchEndEvent.forElement(x).listen((e) {
       Expect.equals(type, e.type);
       asyncEnd();
     });
-
-    var event = new TouchEvent(type);
     x.dispatchEvent(event);
   } else {
     Expect.fail("Body is null");

LibTest/html/Element/touchEnterEvent_A01_t01.dart

@@ -14,13 +14,18 @@ main() {
   var type = 'touchenter';
   var x = document.body;
   if (x != null) {
+    var event;
+    try {
+      event = new TouchEvent(type);
+    } catch (_) {
+      // TouchEvent is not present in Safari and Firefox. Nothing to test.
+      return;
+    }
     asyncStart();
     Element.touchEnterEvent.forElement(x).listen((e) {
       Expect.equals(type, e.type);
       asyncEnd();
     });
-
-    var event = new TouchEvent(type);
     x.dispatchEvent(event);
   } else {
     Expect.fail("Body is null");

LibTest/html/Element/touchLeaveEvent_A01_t01.dart

@@ -14,13 +14,18 @@ main() {
   var type = 'touchleave';
   var x = document.body;
   if (x != null) {
+    var event;
+    try {
+      event = new TouchEvent(type);
+    } catch (_) {
+      // TouchEvent is not present in Safari and Firefox. Nothing to test.
+      return;
+    }
     asyncStart();
     Element.touchLeaveEvent.forElement(x).listen((e) {
       Expect.equals(type, e.type);
       asyncEnd();
     });
-
-    var event = new TouchEvent(type);
     x.dispatchEvent(event);
   } else {
     Expect.fail("Body is null");

LibTest/html/Element/touchMoveEvent_A01_t01.dart

@@ -14,13 +14,18 @@ main() {
   var type = 'touchmove';
   var x = document.body;
   if (x != null) {
+    var event;
+    try {
+      event = new TouchEvent(type);
+    } catch (_) {
+      // TouchEvent is not present in Safari and Firefox. Nothing to test.
+      return;
+    }
     asyncStart();
     Element.touchMoveEvent.forElement(x).listen((e) {
       Expect.equals(type, e.type);
       asyncEnd();
     });
-
-    var event = new TouchEvent(type);
     x.dispatchEvent(event);
   } else {
     Expect.fail("Body is null");

LibTest/html/Element/touchStartEvent_A01_t01.dart

@@ -14,13 +14,18 @@ main() {
   var type = 'touchstart';
   var x = document.body;
   if (x != null) {
+    var event;
+    try {
+      event = new TouchEvent(type);
+    } catch (_) {
+      // TouchEvent is not present in Safari and Firefox. Nothing to test.
+      return;
+    }
     asyncStart();
     Element.touchStartEvent.forElement(x).listen((e) {
       Expect.equals(type, e.type);
       asyncEnd();
     });
-
-    var event = new TouchEvent(type);
     x.dispatchEvent(event);
   } else {
     Expect.fail("Body is null");

LibTest/html/IFrameElement/onTouchCancel_A01_t01.dart

@@ -12,13 +12,17 @@ import "../../../Utils/expect.dart";
 main() {
   var type = 'touchcancel';
   var x = new IFrameElement();
-
+  var event;
+  try {
+    event = new TouchEvent(type);
+  } catch (_) {
+    // TouchEvent is not present in Safari and Firefox. Nothing to test.
+    return;
+  }
   asyncStart();
   x.onTouchCancel.listen((e) {
     Expect.equals(type, e.type);
     asyncEnd();
   });
-
-  var event = new TouchEvent(type);
   x.dispatchEvent(event);
 }

LibTest/html/IFrameElement/onTouchEnd_A01_t01.dart

@@ -12,13 +12,17 @@ import "../../../Utils/expect.dart";
 main() {
   var type = 'touchend';
   var x = new IFrameElement();
-
+  var event;
+  try {
+    event = new TouchEvent(type);
+  } catch (_) {
+    // TouchEvent is not present in Safari and Firefox. Nothing to test.
+    return;
+  }
   asyncStart();
   x.onTouchEnd.listen((e) {
     Expect.equals(type, e.type);
     asyncEnd();
   });
-
-  var event = new TouchEvent(type);
   x.dispatchEvent(event);
 }

LibTest/html/IFrameElement/onTouchEnter_A01_t01.dart

@@ -12,13 +12,17 @@ import "../../../Utils/expect.dart";
 main() {
   var type = 'touchenter';
   var x = new IFrameElement();
-
+  var event;
+  try {
+    event = new TouchEvent(type);
+  } catch (_) {
+    // TouchEvent is not present in Safari and Firefox. Nothing to test.
+    return;
+  }
   asyncStart();
   x.onTouchEnter.listen((e) {
     Expect.equals(type, e.type);
     asyncEnd();
   });
-
-  var event = new TouchEvent(type);
   x.dispatchEvent(event);
 }

LibTest/html/IFrameElement/onTouchLeave_A01_t01.dart

@@ -12,13 +12,17 @@ import "../../../Utils/expect.dart";
 main() {
   var type = 'touchleave';
   var x = new IFrameElement();
-
+  var event;
+  try {
+    event = new TouchEvent(type);
+  } catch (_) {
+    // TouchEvent is not present in Safari and Firefox. Nothing to test.
+    return;
+  }
   asyncStart();
   x.onTouchLeave.listen((e) {
     Expect.equals(type, e.type);
     asyncEnd();
   });
-
-  var event = new TouchEvent(type);
   x.dispatchEvent(event);
 }

LibTest/html/IFrameElement/onTouchMove_A01_t01.dart

@@ -12,13 +12,17 @@ import "../../../Utils/expect.dart";
 main() {
   var type = 'touchmove';
   var x = new IFrameElement();
-
+  var event;
+  try {
+    event = new TouchEvent(type);
+  } catch (_) {
+    // TouchEvent is not present in Safari and Firefox. Nothing to test.
+    return;
+  }
   asyncStart();
   x.onTouchMove.listen((e) {
     Expect.equals(type, e.type);
     asyncEnd();
   });
-
-  var event = new TouchEvent(type);
   x.dispatchEvent(event);
 }

LibTest/html/IFrameElement/onTouchStart_A01_t01.dart

@@ -12,13 +12,17 @@ import "../../../Utils/expect.dart";
 main() {
   var type = 'touchstart';
   var x = new IFrameElement();
-
+  var event;
+  try {
+    event = new TouchEvent(type);
+  } catch (_) {
+    // TouchEvent is not present in Safari and Firefox. Nothing to test.
+    return;
+  }
   asyncStart();
   x.onTouchStart.listen((e) {
     Expect.equals(type, e.type);
     asyncEnd();
   });
-
-  var event = new TouchEvent(type);
   x.dispatchEvent(event);
 }