<!doctype html>
<html>
<head>
<meta charset="utf-8">
<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css" />
<style>
body {
  margin: 40px;
}
.wrapper {
  display: grid;
  width: 400px;
  grid-gap: 10px;
  grid-template-columns: 100px 1fr 1fr 100px;
  background-color: #f00;
}
.box {
  background-color: #444;
  color: #fff;
}
</style>

<script>
"use strict";

SimpleTest.waitForExplicitFinish();

function runTests() {
  var wrapper = document.getElementById("wrapper");
  var grid = wrapper.getGridFragments()[0];
  var boxA = document.getElementById("boxA");
  var boxB = document.getElementById("boxB");

  // test property existence
  isnot(typeof(grid.cols.tracks), "undefined", "Grid.cols.tracks property exists.");
  isnot(typeof(grid.rows.tracks), "undefined", "Grid.rows.tracks property exists.");

  if ((typeof(grid.cols.tracks) != "undefined") &&
    (typeof(grid.rows.tracks) != "undefined")) {
    // test column and row track counts
    is(grid.cols.tracks.length, 4,
      "Grid.cols.tracks property has length that matches grid-template-columns."
    );
    is(grid.rows.tracks.length, 2,
      "Grid.rows.tracks property has length that matches content."
    );

    if ((grid.cols.tracks.length == 4) &&
        (grid.rows.tracks.length == 2)) {
      // test column track position
      is(grid.cols.tracks[1].start, 110, "Grid column track 2 position is as expected.");

      // test column track width
      is(grid.cols.tracks[0].breadth, boxA.offsetWidth,
        "Grid column track width (fixed size) matches item width."
      );
      is(grid.cols.tracks[1].breadth, boxB.offsetWidth,
        "Grid column track width (flexible size) matches item width."
      );
      is(grid.cols.tracks[1].breadth, grid.cols.tracks[2].breadth,
        "Grid column track widths with equal proportion flexible size actually are same size."
      );
    }
  }

  SimpleTest.finish();
}
</script>
</head>
<body onLoad="runTests();">

  <div id="wrapper" class="wrapper">
    <div id="boxA" class="box a">A</div>
    <div id="boxB" class="box b">B</div>
    <div class="box c">C</div>
    <div class="box d">D</div>
    <div class="box e">E</div>
    <div class="box f">F</div>
    <div class="box g">G</div>
    <div class="box h">H</div>
  </div>

</body>
</html>
