<!doctype html>
<script>
if (window.testRunner)
testRunner.dumpAsText();
var TESTS = [
["#000", 0, 0, 0],
["#001", 0, 0, 17],
["#012", 0, 17, 34],
["#123", 17, 34, 51],
["#0001", 0, 0, 0, 17],
["#0012", 0, 0, 17,34],
["#0123", 0, 17, 34, 51],
["#1234", 17, 34, 51, 68],
["#000000", 0, 0, 0],
["#000012", 0, 0, 18],
["#001234", 0, 18, 52],
["#123456", 18, 52, 86],
["#00000000", 0, 0, 0, 0],
["#00000012", 0, 0, 0, 18],
["#00001234", 0, 0, 18, 52],
["#00123456", 0, 18, 52, 86],
["#12345678", 18, 52, 86, 120],
// Bad content from here on shows the red failure color.
["#12x3", 255, 0, 0],
["#123x", 255, 0, 0],
["#123x4567", 255, 0, 0],
["#1234567r", 255, 0, 0],
["#123456x6", 255, 0, 0],
];
function extractComponents(rgbValue) {
var re = /rgba?\((\d+),\s(\d+),\s(\d+)(,\s([\d\.]+))?\)/;
var match = re.exec(rgbValue);
var results = [parseInt(match[1]), parseInt(match[2]), parseInt(match[3])];
if (match[5])
results.push(Math.round(parseFloat(match[5]) * 255));
return results;
}
function componentsMatch(components, expectedR, expectedG, expectedB, expectedA) {
if (components[0] == expectedR && components[1] == expectedG && components[2] == expectedB) {
if (components.length != 4)
return true;
return components[3] == expectedA;
}
}
function componentsAsRGBA(r, g, b, a) {
if (a !== undefined)
return "red:" + r + " green: " + g + " blue: " + b + " alpha: " + a;
return "red:" + r + " green: " + g + " blue: " + b;
}
function runTest() {
var element = document.querySelector("p");
var results = "";
for (var test of TESTS) {
element.style.color = test[0];
var components = extractComponents(window.getComputedStyle(element).color);
if (componentsMatch(components, test[1], test[2], test[3], test[4]))
results += "PASS " + test[0] + " was " + componentsAsRGBA(test[1], test[2], test[3], test[4]) + "<br>";
else
results += "FAIL " + test[0] + " should be " + componentsAsRGBA(test[1], test[2], test[3], test[4]) + " but was " + componentsAsRGBA(components[0], components[1], components[2], components[3]) + "<br>";
// Force a color reset and style recalc.
element.style.color = "red";
computedStyle = window.getComputedStyle(element).color;
}
document.querySelector("div").innerHTML = results;
}
window.addEventListener("load", runTest, false);
</script>
<div id="results"></div>
<p></p>