1suite('property-interpolation', function() {
2  test('unmatched inputs return step interpolation', function() {
3    tests = [['unknown', 'input', 'tuple'],
4             ['unknown', '10px', '50px'],
5             ['width', '100px', 'auto'],
6             ['width', 'auto', '100px']];
7    for (var i = 0; i < tests.length; i++) {
8      var property = tests[i][0];
9      var left = tests[i][1];
10      var right = tests[i][2];
11      interpolation = webAnimations1.propertyInterpolation(property, left, right);
12      assert.equal(interpolation(-1), left);
13      assert.equal(interpolation(0), left);
14      assert.equal(interpolation(0.45), left);
15      assert.equal(interpolation(0.5), right);
16      assert.equal(interpolation(0.55), right);
17      assert.equal(interpolation(1), right);
18      assert.equal(interpolation(2), right);
19    }
20  });
21
22  test('registers camel cased property names', function() {
23    function merge(a, b) {
24      return [a, b, function(x) { return a + b; }];
25    };
26    webAnimations1.addPropertiesHandler(Number, merge, ['dummy-property']);
27    assert.equal(webAnimations1.propertyInterpolation('dummy-property', 1, 2)(0.5), 3);
28    assert.equal(webAnimations1.propertyInterpolation('dummyProperty', 5, 3)(0.5), 8);
29  });
30});
31