chore(core): introduce a wrapper for requestAnimationFrame

1 files changed, 47 insertions, 0 deletions

diff --git a/test/ng/rafSpec.js b/test/ng/rafSpec.js
new file mode 100644
index 00000000..6c15e2d2
--- /dev/null
+++ b/test/ng/rafSpec.js
@@ -0,0 +1,47 @@
+'use strict';
+
+describe('$$rAF', function() {
+  it('should queue and block animation frames', inject(function($$rAF) {
+    if(!$$rAF.supported) return;
+
+    var message;
+    $$rAF(function() {
+      message = 'yes';
+    });
+
+    expect(message).toBeUndefined();
+    $$rAF.flush();
+    expect(message).toBe('yes');
+  }));
+
+  it('should provide a cancellation method', inject(function($$rAF) {
+    if(!$$rAF.supported) return;
+
+    var present = true;
+    var cancel = $$rAF(function() {
+      present = false;
+    });
+
+    expect(present).toBe(true);
+    cancel();
+
+    try {
+      $$rAF.flush();
+    } catch(e) {};
+    expect(present).toBe(true);
+  }));
+
+  describe('mocks', function() {
+    it('should throw an error if no frames are present', inject(function($$rAF) {
+      if($$rAF.supported) {
+        var failed = false;
+        try {
+          $$rAF.flush();
+        } catch(e) {
+          failed = true;
+        }
+        expect(failed).toBe(true);
+      }
+    }));
+  });
+});