<!DOCTYPE html>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>

<div id="target"></div>

<script>
function compareValue(property, calcValue, expectedValue) {
    target.style[property] = '';
    target.style[property] = calcValue;
    var computedCalcValue = getComputedStyle(target)[property];

    target.style[property] = expectedValue;
    var computedExpectedValue = getComputedStyle(target)[property];
    assert_equals(computedCalcValue, computedExpectedValue, calcValue + ' should equal to ' + expectedValue);
}

test(function() {
    compareValue("transition-delay", "calc(4s + 1s)", "5s");
    compareValue("transition-delay", "calc(4s + 1ms)", "4.001s");
    compareValue("transition-delay", "calc(4ms + 1ms)", "0.005s");
    compareValue("transition-delay", "calc(4s - 1s)", "3s");
    compareValue("transition-delay", "calc(4s - 1ms)", "3.999s");
    compareValue("transition-delay", "calc(4 * 1s)", "4s");
    compareValue("transition-delay", "calc(4 * 1ms)", "0.004s");
    compareValue("transition-delay", "calc(4s / 2)", "2s");
    compareValue("transition-delay", "calc(4ms / 2)", "0.002s");
}, "Tests calc() with time units.");

test(function() {
    compareValue("transform", "rotate(calc(45deg + 45deg))", "rotate(90deg)");
    compareValue("transform", "rotate(calc(45deg + 1rad))", "rotate(102.3deg)");
    compareValue("transform", "rotate(calc(20deg + 200grad))", "rotate(200deg)");
    compareValue("transform", "rotate(calc(200deg + 0.5turn))", "rotate(200deg)");
    compareValue("transform", "rotate(calc(45rad + 45rad))", "rotate(90rad)");
    compareValue("transform", "rotate(calc(1rad + 40grad))", "matrix(-0.0574904875548093, 0.998346054151921, -0.998346054151921, -0.0574904875548093, 0, 0)");
    compareValue("transform", "rotate(calc(1rad + 0.5turn))", "matrix(-0.54030230586814, -0.841470984807896, 0.841470984807896, -0.54030230586814, 0, 0)");
    compareValue("transform", "rotate(calc(45grad + 45grad))", "rotate(90grad)");
    compareValue("transform", "rotate(calc(10grad + 0.5turn))", "rotate(189deg)");

    compareValue("transform", "rotate(calc(45deg - 15deg))", "rotate(30deg)");
    compareValue("transform", "rotate(calc(90deg - 1rad))", "matrix(0.841470984807897, 0.54030230586814, -0.54030230586814, 0.841470984807897, 0, 0)");
    compareValue("transform", "rotate(calc(38deg - 20grad))", "rotate(20deg)");
    compareValue("transform", "rotate(calc(360deg - 0.5turn))", "rotate(180deg)");
    compareValue("transform", "rotate(calc(45rad - 15rad))", "rotate(30rad)");
    compareValue("transform", "rotate(calc(30rad - 10grad))", "matrix(-0.955728013201613, 0.294251533184956, -0.294251533184956, -0.955728013201613, 0, 0)");
    compareValue("transform", "rotate(calc(4rad - 0.1turn))", "matrix(-0.973646143183581, -0.228063999490797, 0.228063999490797, -0.973646143183581, 0, 0)");
    compareValue("transform", "rotate(calc(45grad - 15grad))", "rotate(30grad)");
    compareValue("transform", "rotate(calc(100grad - 0.25turn))", "rotate(0deg)");

    compareValue("transform", "rotate(calc(45deg * 2))", "rotate(90deg)");
    compareValue("transform", "rotate(calc(2 * 45rad))", "rotate(90rad)");
    compareValue("transform", "rotate(calc(45grad * 2))", "rotate(90grad)");
    compareValue("transform", "rotate(calc(2 * 45turn))", "rotate(90turn)");

    compareValue("transform", "rotate(calc(90deg / 2))", "rotate(45deg)");
    compareValue("transform", "rotate(calc(90rad / 2))", "rotate(45rad)");
    compareValue("transform", "rotate(calc(90grad / 2))", "rotate(45grad)");
    compareValue("transform", "rotate(calc(90turn / 2))", "rotate(45turn)");
}, "Tests calc() with angle units.");

test(function() {
    // NOTE: Since there is no CSS property that uses frequency at the moment we only test the parsing.
    compareValue("pitch", "calc(10Hz + 20Hz)", null);
    compareValue("pitch", "calc(10kHz + 20kHz)", null);
    compareValue("pitch", "calc(10kHz + 20Hz)", null);
    compareValue("pitch", "calc(20Hz - 10Hz)", null);
    compareValue("pitch", "calc(20kHz - 10kHz)", null);
    compareValue("pitch", "calc(20kHz - 10Hz)", null);
    compareValue("pitch", "calc(10Hz * 2)", null);
    compareValue("pitch", "calc(10kHz * 2)", null);
    compareValue("pitch", "calc(10Hz / 2)", null);
    compareValue("pitch", "calc(10kHz / 2)", null);
}, "Tests calc() with frequency units.");

test(function() {
    compareValue("transition-delay", "calc(4000ms)", "4s");
    compareValue("transform", "rotate(calc(50grad)", "rotate(45deg)");
}, "Tests unit conversion of single values in calc().");
</script>