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<meta charset=utf-8>
<meta name="timeout" content="long">
<title>Div.</title>
<script src="js/test-harness.js"></script>
<script src="../js/webgpu-functions.js"></script>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script>
const whlslTests = {};
const epsilon = 0.0001;

whlslTests.vectorDiv = async () => {
    const program = `
        float foo() {
            float2 x = float2(10, 30);
            float2 y = float2(5, 10);
            float2 r = x / y;
            return r.x / r.y;
        }
    `;
    assert_approx_equals(await callFloatFunction(program, "foo", []), 2/3, epsilon);
};

whlslTests.vectorDivWithScalar = async () => {
    const program = `
        float foo() {
            float2 x = float2(10, 25);
            float2 r = x / 5.0;
            return r.x / r.y;
        }
    `;
    assert_approx_equals(await callFloatFunction(program, "foo", []), 2/5, epsilon);
};

whlslTests.vectorDivWithScalar2 = async () => {
    const program = `
        float foo() {
            float2 x = float2(10, 25);
            float2 r = 100 / x;
            return r.x / r.y;
        }
    `;
    assert_approx_equals(await callFloatFunction(program, "foo", []), 10/4, epsilon);
};

whlslTests.matrixDiv = async () => {
    const program = `
        bool foo() {
            float2x2 m;
            m[0] = float2(20, 30);
            m[1] = float2(40, 50);

            float2x2 m2;
            m2[0] = float2(-1.0, -1.0);
            m2[1] = float2(-1.0, -1.0);

            m = m / m2;

            if (m[0][0] == -20.0 && m[0][1] == -30.0 && m[1][0] == -40.0 && m[1][1] == -50.0)
                return true;
            return false;
        }
    `;
    assert_equals(await callBoolFunction(program,  "foo", []), true);
};

whlslTests.matrixDivScalar = async () => {
    const program = `
        bool foo() {
            float2x2 m;
            m[0] = float2(20, 30);
            m[1] = float2(40, 50);

            m = m / -1.0;

            if (m[0][0] == -20.0 && m[0][1] == -30.0 && m[1][0] == -40.0 && m[1][1] == -50.0)
                return true;
            return false;
        }
    `;
    assert_equals(await callBoolFunction(program,  "foo", []), true);
};

whlslTests.matrixDivScalar2 = async () => {
    const program = `
        bool foo() {
            float2x2 m;
            m[0] = float2(10, 20);
            m[1] = float2(25, 50);

            m = 100.0 / m;

            if (m[0][0] == 10.0 && m[0][1] == 5.0 && m[1][0] == 4.0 && m[1][1] == 2.0)
                return true;
            return false;
        }
    `;
    assert_equals(await callBoolFunction(program,  "foo", []), true);
};

runTests(whlslTests);
</script>
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