layout/style/test/test_transitions.html
author Ryan VanderMeulen <ryanvm@gmail.com>
Thu, 26 May 2016 11:21:20 -0400
changeset 299103 b0096c5c7277
parent 292799 fdc53ebd6d2e
permissions -rw-r--r--
Merge fx-team to m-c. a=merge
<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=435441
-->
<head>
  <title>Test for Bug 435441</title>
  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <script type="application/javascript" src="animation_utils.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  <style type="text/css">

  #display p { margin-top: 0; margin-bottom: 0; }
  #display .before, #display .after {
    width: -moz-fit-content; border: 1px solid black;
  }
  #display .before::before, #display .after::after {
    display: block;
    width: 0;
    text-indent: 0;
  }
  #display .before.started::before, #display .after.started::after {
    width: 100px;
    text-indent: 100px;
    transition: 8s width ease-in-out, 8s text-indent ease-in-out;
  }
  #display .before::before {
    content: "Before";
  }
  #display .after::after {
    content: "After";
  }

  </style>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=435441">Mozilla Bug 435441</a>
<div id="display">

</div>
<pre id="test">
<script type="application/javascript">

/** Test for Bug 435441 **/

// Run tests simultaneously so we don't have to take up too much time.
SimpleTest.waitForExplicitFinish();
SimpleTest.requestFlakyTimeout("untriaged");
var gTestsRunning = 0;
function TestStarted() { ++gTestsRunning; }
function TestFinished() { if (--gTestsRunning == 0) SimpleTest.finish(); }

// An array of arrays of functions to be called at the outer index number
// of seconds after the present.
var gFutureCalls = [];

function add_future_call(index, func)
{
    if (!(index in gFutureCalls)) {
        gFutureCalls[index] = [];
    }
    gFutureCalls[index].push(func);
    TestStarted();
}
var gStartTime1, gStartTime2;
var gCurrentTime;
var gSetupComplete = false;

function process_future_calls(index)
{
    var calls = gFutureCalls[index];
    if (!calls)
        return;
    gCurrentTime = Date.now();
    for (var i = 0; i < calls.length; ++i) {
        calls[i]();
        TestFinished();
    }
}

var timingFunctions = {
  // a map from the value of 'transition-timing-function' to an array of
  // the portions this function yields at 0 (always 0), 1/4, 1/2, and
  // 3/4 and all (always 1) of the way through the time of the
  // transition.  Each portion is represented as a value and an
  // acceptable error tolerance (based on a time error of 1%) for that
  // value.

  // ease
  "ease": bezier(0.25, 0.1, 0.25, 1),
  "cubic-bezier(0.25, 0.1, 0.25, 1.0)": bezier(0.25, 0.1, 0.25, 1),

  // linear and various synonyms for it
  "linear": function(x) { return x; },
  "cubic-bezier(0.0, 0.0, 1.0, 1.0)": function(x) { return x; },
  "cubic-bezier(0, 0, 1, 1)": function(x) { return x; },
  "cubic-bezier(0, 0, 0, 0.0)": function(x) { return x; },
  "cubic-bezier(1.0, 1, 0, 0)": function(x) { return x; },

  // ease-in
  "ease-in": bezier(0.42, 0, 1, 1),
  "cubic-bezier(0.42, 0, 1.0, 1.0)": bezier(0.42, 0, 1, 1),

  // ease-out
  "ease-out": bezier(0, 0, 0.58, 1),
  "cubic-bezier(0, 0, 0.58, 1.0)": bezier(0, 0, 0.58, 1),

  // ease-in-out
  "ease-in-out": bezier(0.42, 0, 0.58, 1),
  "cubic-bezier(0.42, 0, 0.58, 1.0)": bezier(0.42, 0, 0.58, 1),

  // other cubic-bezier values
  "cubic-bezier(0.4, 0.1, 0.7, 0.95)": bezier(0.4, 0.1, 0.7, 0.95),
  "cubic-bezier(1, 0, 0, 1)": bezier(1, 0, 0, 1),
  "cubic-bezier(0, 1, 1, 0)": bezier(0, 1, 1, 0),

};

var div = document.getElementById("display");

// Set up all the elements on which we are going to start transitions.

// We have two reference elements to check the expected timing range.
// They both have 8s linear transitions from 0 to 1000px.
function make_reference_p() {
    var p = document.createElement("p");
    p.appendChild(document.createTextNode("reference"));
    p.style.textIndent = "0px";
    p.style.transition = "8s text-indent linear";
    div.appendChild(p);
    return p;
}
var earlyref = make_reference_p();
var earlyrefcs = getComputedStyle(earlyref, "");

// Test all timing functions using a set of 8-second transitions, which
// we check at times 0, 2s, 4s, 6s, and 8s.
var tftests = [];
for (var tf in timingFunctions) {
    var p = document.createElement("p");
    var t = document.createTextNode("transition-timing-function: " + tf);
    p.appendChild(t);
    p.style.textIndent = "0px";
    p.style.transition = "8s text-indent linear";
    p.style.transitionTimingFunction = tf;
    div.appendChild(p);
    is(getComputedStyle(p, "").textIndent, "0px",
       "should be zero before changing value");
    tftests.push([ p, tf ]);
}

// Check that the timing function continues even when we restyle in the
// middle.
var interrupt_tests = [];
for (var restyleParent of [true, false]) {
    for (var itime = 2; itime < 8; itime += 2) {
        var p = document.createElement("p");
        var t = document.createTextNode("interrupt on " +
                                        (restyleParent ? "parent" : "node itself") +
                                        " at " + itime + "s");
        p.appendChild(t);
        p.style.textIndent = "0px";
        p.style.transition = "8s text-indent cubic-bezier(0, 1, 1, 0)";
        if (restyleParent) {
          var d = document.createElement("div");
          d.appendChild(p);
          div.appendChild(d);
        } else {
          div.appendChild(p);
        }
        is(getComputedStyle(p, "").textIndent, "0px",
           "should be zero before changing value");
        setTimeout("interrupt_tests[" + interrupt_tests.length + "]" +
                   "[0]" + (restyleParent ? ".parentNode" : "") +
                   ".style.color = 'blue';" +
                   "check_interrupt_tests()", itime*1000);
        interrupt_tests.push([ p, itime ]);
    }
}

// Test transition-delay values of -4s through 4s on a 4s transition
// with 'ease-out' timing function.
var delay_tests = {};
for (var d = -4; d <= 4; ++d) {
    var p = document.createElement("p");
    var delay = d + "s";
    var t = document.createTextNode("transition-delay: " + delay);
    p.appendChild(t);
    p.style.marginLeft = "0px";
    p.style.transition = "4s margin-left ease-out " + delay;
    div.appendChild(p);
    is(getComputedStyle(p, "").marginLeft, "0px",
       "should be zero before changing value");
    delay_tests[d] = p;
}

// Test transition-delay values of -4s through 4s on a 4s transition
// with duration of zero.
var delay_zero_tests = {};
for (var d = -4; d <= 4; ++d) {
    var p = document.createElement("p");
    var delay = d + "s";
    var t = document.createTextNode("transition-delay: " + delay);
    p.appendChild(t);
    p.style.marginLeft = "0px";
    p.style.transition = "0s margin-left linear " + delay;
    div.appendChild(p);
    is(getComputedStyle(p, "").marginLeft, "0px",
       "should be zero before changing value");
    delay_zero_tests[d] = p;
}

// Test that changing the value on an already-running transition to the
// value it currently happens to have resets the transition.
function make_reset_test(transition, description)
{
    var p = document.createElement("p");
    var t = document.createTextNode(description);
    p.appendChild(t);
    p.style.marginLeft = "0px";
    p.style.transition = transition;
    div.appendChild(p);
    is(getComputedStyle(p, "").marginLeft, "0px",
       "should be zero before changing value");
    return p;
}
var reset_test = make_reset_test("4s margin-left ease-out 4s", "transition-delay reset to starting point");
var reset_test_reference = make_reset_test("4s margin-left linear -3s", "reference for previous test (reset test)");

// Test that transitions on descendants start correctly when the
// inherited value is itself transitioning.  In other words, when
// ancestor and descendant both have a transition for the same property,
// and the descendant inherits the property from the ancestor, the
// descendant's transition starts as specified, based on the concepts of
// the before-change style, the after-change style, and the
// after-transition style.
var descendant_tests = [
    { parent_transition: "",
      child_transition: "4s text-indent" },
    { parent_transition: "4s text-indent",
      child_transition: "" },
    { parent_transition: "4s text-indent",
      child_transition: "16s text-indent" },
    { parent_transition: "4s text-indent",
      child_transition: "1s text-indent" },
    { parent_transition: "8s letter-spacing",
      child_transition: "4s text-indent" },
    { parent_transition: "4s text-indent",
      child_transition: "8s letter-spacing" },
    { parent_transition: "4s text-indent",
      child_transition: "8s all" },
    { parent_transition: "8s text-indent",
      child_transition: "4s all" },
    // examples with positive and negative delay
    { parent_transition: "4s text-indent 1s",
      child_transition: "8s text-indent" },
    { parent_transition: "4s text-indent -1s",
      child_transition: "8s text-indent" }
];

for (var i in descendant_tests) {
    var test = descendant_tests[i];
    test.parentNode = document.createElement("div");
    test.childNode = document.createElement("p");
    test.parentNode.appendChild(test.childNode);
    test.childNode.appendChild(document.createTextNode(
        "parent with \"" + test.parent_transition + "\" and " +
        "child with \"" + test.child_transition + "\""));
    test.parentNode.style.transition = test.parent_transition;
    test.childNode.style.transition = test.child_transition;
    test.parentNode.style.textIndent = "50px"; // transition from 50 to 150
    test.parentNode.style.letterSpacing = "10px"; // transition from 10 to 5
    div.appendChild(test.parentNode);
    var parentCS = getComputedStyle(test.parentNode, "");
    var childCS = getComputedStyle(test.childNode, "");
    is(parentCS.textIndent, "50px",
       "parent text-indent should be 50px before changing");
    is(parentCS.letterSpacing, "10px",
       "parent letter-spacing should be 10px before changing");
    is(childCS.textIndent, "50px",
       "child text-indent should be 50px before changing");
    is(childCS.letterSpacing, "10px",
       "child letter-spacing should be 10px before changing");
    test.childCS = childCS;
}

// For all of these transitions, the transition for margin-left should
// have a duration of 8s, and the default timing function (ease) and
// delay (0).
// This is because we're implementing the proposal in
// http://lists.w3.org/Archives/Public/www-style/2009Aug/0109.html
var number_tests = [
  { style: "transition: 4s margin, 8s margin-left" },
  { style: "transition: 4s margin-left, 8s margin" },
  { style: "transition-property: margin-left; " +
             "transition-duration: 8s, 2s" },
  { style: "transition-property: margin-left, margin-left; " + 
             "transition-duration: 2s, 8s" },
  { style: "transition-property: margin-left, margin-left, margin-left; " +
             "transition-duration: 8s, 2s" },
  { style: "transition-property: margin-left; " +
             "transition-duration: 8s, 16s" },
  { style: "transition-property: margin-left, margin-left; " + 
             "transition-duration: 16s, 8s" },
  { style: "transition-property: margin-left, margin-left, margin-left; " +
             "transition-duration: 8s, 16s" },
  { style: "transition-property: text-indent,word-spacing,margin-left; " +
             "transition-duration: 8s; " +
             "transition-delay: 0, 8s" },
  { style: "transition-property: text-indent,word-spacing,margin-left; " +
             "transition-duration: 8s, 16s; " +
             "transition-delay: 8s, 8s, 0, 8s, 8s, 8s" },
];

for (var i in number_tests) {
    var test = number_tests[i];
    var p = document.createElement("p");
    p.setAttribute("style", test.style);
    var t = document.createTextNode(test.style);
    p.appendChild(t);
    p.style.marginLeft = "100px";
    div.appendChild(p);
    is(getComputedStyle(p, "").marginLeft, "100px",
       "should be 100px before changing value");
    test.node = p;
}

// Test transitions that are also from-display:none, to-display:none, and
// display:none throughout.
var from_none_test, to_none_test, always_none_test;
function make_display_test(initially_none, text)
{
    var p = document.createElement("p");
    p.appendChild(document.createTextNode(text));
    p.style.textIndent = "0px";
    p.style.transition = "8s text-indent ease-in-out";
    if (initially_none)
        p.style.display = "none";
    div.appendChild(p);
    return p;
}
from_none_test   = make_display_test(true,  "transition from display:none");
to_none_test     = make_display_test(false, "transition to display:none");
always_none_test = make_display_test(true,  "transition always display:none");
var display_tests = [ from_none_test, to_none_test, always_none_test ];

// Test transitions on pseudo-elements
var before_test, after_test;
function make_pseudo_elem_test(pseudo)
{
    var p = document.createElement("p");
    p.className = pseudo;
    div.appendChild(p);
    return {"pseudo": pseudo, element: p};
}
before_test = make_pseudo_elem_test("before");
after_test = make_pseudo_elem_test("after");
var pseudo_element_tests = [ before_test, after_test ];

// FIXME (Bug 522599): Test a transition that reverses partway through.

var lateref = make_reference_p();
var laterefcs = getComputedStyle(lateref, "");

// flush style changes
var x = getComputedStyle(div, "").color;

// Start our timer as close as possible to when we start the first
// transition.
// Do not use setInterval because once it gets off in time, it stays off.
for (var i = 1; i <= 8; ++i) {
    setTimeout(process_future_calls, i * 1000, i);
}
gStartTime1 = Date.now(); // set before any transitions have started

// Start all the transitions.
earlyref.style.textIndent = "1000px";
for (var test in tftests) {
    var p = tftests[test][0];
    p.style.textIndent = "100px";
}
for (var test in interrupt_tests) {
    var p = interrupt_tests[test][0];
    p.style.textIndent = "100px";
}
for (var d in delay_tests) {
    var p = delay_tests[d];
    p.style.marginLeft = "100px";
}
for (var d in delay_zero_tests) {
    var p = delay_zero_tests[d];
    p.style.marginLeft = "100px";
}
reset_test.style.marginLeft = "100px";
reset_test_reference.style.marginLeft = "100px";
for (var i in descendant_tests) {
    var test = descendant_tests[i];
    test.parentNode.style.textIndent = "150px";
    test.parentNode.style.letterSpacing = "5px";
}
for (var i in number_tests) {
    var test = number_tests[i];
    test.node.style.marginLeft = "50px";
}
from_none_test.style.textIndent = "100px";
from_none_test.style.display = "";
to_none_test.style.textIndent = "100px";
to_none_test.style.display = "none";
always_none_test.style.textIndent = "100px";
for (var i in pseudo_element_tests) {
    var test = pseudo_element_tests[i];
    test.element.classList.add("started");
}
lateref.style.textIndent = "1000px";

// flush style changes
x = getComputedStyle(div, "").color;

gStartTime2 = Date.now(); // set after all transitions have started
gCurrentTime = gStartTime2;

/**
 * Assert that a transition whose timing function yields the bezier
 * |func|, running from |start_time| to |end_time| (both in seconds
 * relative to when the transitions were started) should have produced
 * computed value |cval| given that the transition was from
 * |start_value| to |end_value| (both numbers in CSS pixels).
 */
function check_transition_value(func, start_time, end_time,
                                start_value, end_value, cval, desc,
                                xfail)
{
    /**
     * Compute the value at a given time |elapsed|, by normalizing the
     * input to the timing function using start_time and end_time and
     * then turning the output into a value using start_value and
     * end_value.
     *
     * The |error_direction| argument should be either -1, 0, or 1,
     * suggesting adding on a little bit of error, to allow for the
     * cubic-bezier calculation being an approximation.  The amount of
     * error is proportional to the slope of the timing function, since
     * the error is added to the *input* of the timing function (after
     * normalization to 0-1 based on start_time and end_time).
     */
    function value_at(elapsed, error_direction) {
        var time_portion = (elapsed - start_time) / (end_time - start_time);
        if (time_portion < 0)
            time_portion = 0;
        else if (time_portion > 1)
            time_portion = 1;
        // Assume a small error since bezier computation can be off slightly.
        // (This test's computation is probably more accurate than Mozilla's.)
        var value_portion = func(time_portion + error_direction * 0.0005);
        if (value_portion < 0)
            value_portion = 0;
        else if (value_portion > 1)
            value_portion = 1;
        var value = (1 - value_portion) * start_value + value_portion * end_value;
        if (start_value > end_value)
            error_direction = -error_direction;
        // Computed values get rounded to 1/60th of a pixel.
        return value + error_direction * 0.02;
    }

    var time_range; // in seconds
    var uns_range; // |range| before being sorted (so errors give it
                   // in the original order
    if (!gSetupComplete) {
        // No timers involved
        time_range = [0, 0];
        if (start_time < 0) {
            uns_range = [ value_at(0, -1), value_at(0, 1) ];
        } else {
            var val = value_at(0, 0);
            uns_range = [val, val];
        }
    } else {
        time_range = [ px_to_num(earlyrefcs.textIndent) / 125,
                       px_to_num(laterefcs.textIndent) / 125 ];
        // seconds
        uns_range = [ value_at(time_range[0], -1),
                      value_at(time_range[1], 1) ];
    }
    var range = uns_range.concat(). /* concat to clone array */
                  sort(function compareNumbers(a,b) { return a - b; });
    var actual = px_to_num(cval);

    var fn = ok;
    if (xfail && xfail(range))
      fn = todo;

    fn(range[0] <= actual && actual <= range[1],
       desc + ": computed value " + cval + " should be between " +
       uns_range[0].toFixed(6) + "px and " + uns_range[1].toFixed(6) +
       "px at time between " + time_range[0] + "s and " + time_range[1] + "s.");
}

function check_ref_range()
{
    // This is the only test where we compare the progress of the
    // transitions to an actual time; we need considerable tolerance at
    // the low end (we are using half a second).
    var expected_range = [ (gCurrentTime - gStartTime2 - 40) / 8,
                           (Date.now() - gStartTime1 + 20) / 8 ];
    if (expected_range[0] > 1000) {
        expected_range[0] = 1000;
    }
    if (expected_range[1] > 1000) {
        expected_range[1] = 1000;
    }
    function check(desc, value) {
        // The timing on the unit test VMs is not reliable, so make this
        // test report PASS when it succeeds and TODO when it fails.
        var passed = expected_range[0] <= value && value <= expected_range[1];
        (passed ? ok : todo)(passed,
           desc + ": computed value " + value + "px should be between " +
           expected_range[0].toFixed(6) + "px and " +
           expected_range[1].toFixed(6) + "px at time between " +
           expected_range[0]/125 + "s and " + expected_range[1]/125 + "s.");
    }
    check("early reference", px_to_num(earlyrefcs.textIndent));
    check("late reference", px_to_num(laterefcs.textIndent));
}

for (var i = 1; i <= 8; ++i) {
    add_future_call(i, check_ref_range);
}

function check_tf_test()
{
    for (var test in tftests) {
        var p = tftests[test][0];
        var tf = tftests[test][1];

        check_transition_value(timingFunctions[tf], 0, 8, 0, 100,
                               getComputedStyle(p, "").textIndent,
                               "timing function test for timing function " + tf);

    }

    check_interrupt_tests();
}

check_tf_test();
add_future_call(2, check_tf_test);
add_future_call(4, check_tf_test);
add_future_call(6, check_tf_test);
add_future_call(8, check_tf_test);

function check_interrupt_tests()
{
    for (var test in interrupt_tests) {
        var p = interrupt_tests[test][0];
        var itime = interrupt_tests[test][1];

        check_transition_value(timingFunctions["cubic-bezier(0, 1, 1, 0)"],
                               0, 8, 0, 100,
                               getComputedStyle(p, "").textIndent,
                               "interrupt " +
                               (p.parentNode == div ? "" : "on parent ") +
                               "test for time " + itime + "s");
    }
}

// check_interrupt_tests is called from check_tf_test and from
// where we reset the interrupts

function check_delay_test(time)
{
    var tf = timingFunctions["ease-out"];
    for (var d in delay_tests) {
        var p = delay_tests[d];

        check_transition_value(tf, Number(d), Number(d) + 4, 0, 100,
                               getComputedStyle(p, "").marginLeft,
                               "delay test for delay " + d + "s");
    }
}

check_delay_test(0);
for (var i = 1; i <= 8; ++i) {
    add_future_call(i, check_delay_test);
}

function check_delay_zero_test(time)
{
    for (var d in delay_zero_tests) {
        var p = delay_zero_tests[d];

        time_range = [ px_to_num(earlyrefcs.textIndent) / 125,
                       px_to_num(laterefcs.textIndent) / 125 ];
        var m = getComputedStyle(p, "").marginLeft;
        var desc = "delay_zero test for delay " + d + "s";
        if (time_range[0] < d && time_range[1] < d) {
            is(m, "0px", desc);
        } else if ((time_range[0] > d && time_range[1] > d) ||
                   (d == 0 && time == 0)) {
            is(m, "100px", desc);
        }
    }
}

check_delay_zero_test(0);
for (var i = 1; i <= 8; ++i) {
    add_future_call(i, check_delay_zero_test);
}

function reset_reset_test(time)
{
    reset_test.style.marginLeft = "0px";
}
function check_reset_test(time)
{
    is(getComputedStyle(reset_test, "").marginLeft, "0px",
       "reset test value at time " + time + "s.");
}
check_reset_test(0);
// reset the reset test right now so we don't have to worry about clock skew
// To make sure that this is valid, check that a pretty-much-identical test is
// already transitioning.
is(getComputedStyle(reset_test_reference, "").marginLeft, "75px",
   "reset test reference value");
reset_reset_test();
check_reset_test(0);
for (var i = 1; i <= 8; ++i) {
    (function(j) {
        add_future_call(j, function() { check_reset_test(j); });
    })(i);
}

check_descendant_tests();
add_future_call(2, check_descendant_tests);
add_future_call(6, check_descendant_tests);

function check_descendant_tests() {
    // text-indent: transition from 50px to 150px
    // letter-spacing: transition from 10px to 5px
    var values = {};
    values["text-indent"] = [ 50, 150 ];
    values["letter-spacing"] = [ 10, 5 ];
    var tf = timingFunctions["ease"];

    var time = px_to_num(earlyrefcs.textIndent) / 125;

    for (var i in descendant_tests) {
        var test = descendant_tests[i];

        /* ti=text-indent, ls=letter-spacing */
        var child_ti_duration = 0;
        var child_ls_duration = 0;
        var child_ti_delay = 0;
        var child_ls_delay = 0;

        if (test.parent_transition != "") {
            var props = test.parent_transition.split(" ");
            var duration = parseInt(props[0]);
            var delay = (props.length > 2) ? parseInt(props[2]) : 0;
            var property = props[1];
            if (property == "text-indent") {
                child_ti_duration = duration;
                child_ti_delay = delay;
            } else if (property == "letter-spacing") {
                child_ls_duration = duration;
                child_ls_delay = delay;
            } else {
                ok(false, "fix this test (unexpected transition-property " +
                          property + " on parent)");
            }
        }

        if (test.child_transition != "") {
            var props = test.child_transition.split(" ");
            var duration = parseInt(props[0]);
            var delay = (props.length > 2) ? parseInt(props[2]) : 0;
            var property = props[1];
            if (property != "text-indent" && property != "letter-spacing" &&
                property != "all") {
                ok(false, "fix this test (unexpected transition-property " +
                          property + " on child)");
            }

            // Override the parent's transition with the child's as long
            // as the child transition is still running.
            if (property != "letter-spacing" && duration + delay > time) {
                child_ti_duration = duration;
                child_ti_delay = delay;
            }
            if (property != "text-indent" && duration + delay > time) {
                child_ls_duration = duration;
                child_ls_delay = delay;
            }
        }

        var time_portions = {
          "text-indent":
            { duration: child_ti_duration, delay: child_ti_delay },
          "letter-spacing":
            { duration: child_ls_duration, delay: child_ls_delay },
        };

        for (var prop in {"text-indent": true, "letter-spacing": true}) {
            var time_portion = time_portions[prop];

            if (time_portion.duration == 0) {
                time_portion.duration = 0.01;
                time_portion.delay = -1;
            }

            check_transition_value(tf, time_portion.delay,
                                   time_portion.delay + time_portion.duration,
                                   values[prop][0], values[prop][1],
                                   test.childCS.getPropertyValue(prop),
                                   "descendant test, property " + prop);
        }
    }
}

function check_number_tests()
{
    var tf = timingFunctions["ease"];
    for (var d in number_tests) {
        var test = number_tests[d];
        var p = test.node;

        check_transition_value(tf, 0, 8, 100, 50,
                               getComputedStyle(p, "").marginLeft,
                               "number of transitions test for style " +
                                 test.style);
    }
}

check_number_tests(0);
add_future_call(2, check_number_tests);
add_future_call(4, check_number_tests);
add_future_call(6, check_number_tests);
add_future_call(8, check_number_tests);

function check_display_tests(time)
{
    for (var i in display_tests) {
        var p = display_tests[i];

        // There is no transition if the old or new style is display:none, so
        // the computed value is always the end value.
        var computedValue = getComputedStyle(p, "").textIndent;
        is(computedValue, "100px",
           "display test for test with " + p.childNodes[0].data +
           ": computed value " + computedValue + " should be 100px.");
    }
}

check_display_tests(0);
add_future_call(2, function() { check_display_tests(2); });
add_future_call(4, function() { check_display_tests(4); });
add_future_call(6, function() { check_display_tests(6); });
add_future_call(8, function() { check_display_tests(8); });

function check_pseudo_element_tests(time)
{
    var tf = timingFunctions["ease-in-out"];
    for (var i in pseudo_element_tests) {
        var test = pseudo_element_tests[i];

        check_transition_value(tf, 0, 8, 0, 100,
                               getComputedStyle(test.element, "").width,
                               "::"+test.pseudo+" test");
        check_transition_value(tf, 0, 8, 0, 100,
                               getComputedStyle(test.element,
                                                "::"+test.pseudo).textIndent,
                               "::"+test.pseudo+" indent test");
    }
}
check_pseudo_element_tests(0);
add_future_call(2, function() { check_pseudo_element_tests(2); });
add_future_call(4, function() { check_pseudo_element_tests(4); });
add_future_call(6, function() { check_pseudo_element_tests(6); });
add_future_call(8, function() { check_pseudo_element_tests(8); });

gSetupComplete = true;
</script>
</pre>
</body>
</html>