Add initial tests for getCssMatrix()

test/getCssMatrix.test.js

@@ -0,0 +1,37 @@
+require("./chai.helper");
+var sinon = require("sinon");
+var domHelper = require("./dom.helper");
+
+describe("getCssMatrix", function () {
+ var stubMatrix = { a: 1, b: 1, c: 1, d: 1, e: 1, f: 1 };
+
+ // matrix for 90deg rotate
+ var stubWebkitCssMatrix = "matrix(0, 1, -1, 0, 0, 0)";
+
+ // matrix for 180deg rotate
+ var stubMsCssMatrix = "matrix(-1, 0, 0, -1, 0, 0)";
+
+ // matrix for 270deg rotate
+ var stubFooCssMatrix = "matrix(0, -1, 1, 0, 0, 0)";
+
+ beforeEach(function () {
+ domHelper(
+ "<div id=\"moo\"></div>"
+ );
+ });
+
+ it("should return a default matrix if no element argument passed", function () {
+ var matrix = $.getCssMatrix();
+ var expected = { a: 0, b: 0, c: 0, d: 0, e: 0, f: 0 };
+ matrix.should.eql(expected);
+ });
+
+ it("should return a default matrix for an element if an exception occurs", function () {
+ var stub = sinon.stub(window, "getComputedStyle").throws();
+ var expected = { a: 0, b: 0, c: 0, d: 0, e: 0, f: 0 };
+ var elt = document.getElementById("moo");
+ var matrix = $.getCssMatrix(elt);
+ matrix.should.eql(expected);
+ });
+
+});