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<head>
    <title>Geometry Interfaces: DOMMatrixReadOnly methods do not mutate the object</title>
    <link href="mailto:peter.hall@algomi.com" rel="author" title="Peter Hall">
    <link rel="help" href="https://drafts.fxtf.org/geometry-1/#dom-dommatrixreadonly">
    <script src="support/dommatrix-test-util.js"></script>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
</head>
<body>
    <p>Test DOMMatrixReadOnly methods do not mutate the object</p>
    <div id="log"></div>
    <script>

        function initialMatrix(){
          return DOMMatrixReadOnly.fromMatrix(
            {
              m11:1,   m12:-0.5, m13: 0.5,  m14:0,
              m21:0.5, m22:2,    m23: -0.5, m24:0,
              m31:0,   m32:0,    m33: 1,    m34:0,
              m41:0,   m42:0,    m43: 0,    m44:1,
              is2D: false
            }
          );
        }

        test(function() {
          var matrix = initialMatrix();
          matrix.translate(1,5,3);
          checkDOMMatrix(matrix, initialMatrix());
        },"test translate() doesn't mutate");

        test(function() {
          var matrix = initialMatrix();
          matrix.scale(1,5,3,0,1,3);
          checkDOMMatrix(matrix, initialMatrix());
        },"test scale() doesn't mutate");

        test(function() {
          var matrix = initialMatrix();
          matrix.scale3d(3,2,1,1);
          checkDOMMatrix(matrix, initialMatrix());
        },"test scale3d() doesn't mutate");

        test(function() {
          var matrix = initialMatrix();
          matrix.rotate(Math.PI, Math.PI/2, Math.PI/6);
          checkDOMMatrix(matrix, initialMatrix());
        },"test rotate() doesn't mutate");

        test(function() {
          var matrix = initialMatrix();
          matrix.rotateFromVector(10,-4);
          checkDOMMatrix(matrix, initialMatrix());
        },"test rotateFromVector() doesn't mutate");

        test(function() {
          var matrix = initialMatrix();
          matrix.rotateAxisAngle(3,4,5, Math.PI/6);
          checkDOMMatrix(matrix, initialMatrix());
        },"test rotateAxisAngle() doesn't mutate");

        test(function() {
          var matrix = initialMatrix();
          matrix.skewX(20);
          checkDOMMatrix(matrix, initialMatrix());
        },"test skewX() doesn't mutate");

        test(function() {
          var matrix = initialMatrix();
          matrix.skewY(20);
          checkDOMMatrix(matrix, initialMatrix());
        },"test skewY() doesn't mutate");

        test(function() {
          var matrix = initialMatrix();
          matrix.multiply({ m11:1, m12:2, m13: 0, m14:0,
                            m21:-1, m22:2, m23: -1, m24:0,
                            m31:0, m32:0, m33: 1, m34:0,
                            m41:5, m42:0, m43: 2, m44:1,
                            is2D: false,
                            isIdentity:false });
          checkDOMMatrix(matrix, initialMatrix());
        },"test multiply() doesn't mutate");

        test(function() {
          var matrix = initialMatrix();
          matrix.flipX();
          checkDOMMatrix(matrix, initialMatrix());
        },"test flipX() doesn't mutate");

        test(function() {
          var matrix = initialMatrix();
          matrix.flipY();
          checkDOMMatrix(matrix, initialMatrix());
        },"test flipY() doesn't mutate");

        test(function() {
          var matrix = initialMatrix();
          matrix.inverse();
          checkDOMMatrix(matrix, initialMatrix());
        },"test inverse() doesn't mutate");

    </script>
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