<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<body>
<canvas id="canvas" width="200" height="200"></canvas>
<script>
var ctx = document.getElementById('canvas').getContext('2d');
function checkResult(expectedColors, sigma) {
data = ctx.getImageData(50, 50, 1, 1).data;
for (var i = 0; i < 4; i++)
assert_approx_equals(data[i], expectedColors[i], sigma);
}
function drawRectanglesOn(contextOrPath) {
contextOrPath.rect(0, 0, 100, 100);
contextOrPath.rect(25, 25, 50, 50);
}
function testFillWith(fillRule, path) {
ctx.fillStyle = 'rgb(255,0,0)';
ctx.beginPath();
ctx.fillRect(0, 0, 100, 100);
ctx.fillStyle = 'rgb(0,255,0)';
if (path) {
if (fillRule) {
ctx.fill(path, fillRule);
} else {
ctx.fill(path);
}
} else {
ctx.beginPath();
drawRectanglesOn(ctx);
if (fillRule) {
ctx.fill(fillRule);
} else {
ctx.fill();
}
}
if (fillRule == 'evenodd') {
checkResult([255, 0, 0, 255], 5);
} else {
checkResult([0, 255, 0, 255], 5);
}
}
test(function(t) {
fillRules = [undefined, 'nonzero', 'evenodd'];
path = new Path2D();
drawRectanglesOn(path);
for (var i = 0; i < fillRules.length; i++) {
testFillWith(fillRules[i]);
testFillWith(fillRules[i], path);
}
// Test exception cases.
assert_throws_js(TypeError, function() {
ctx.fill(null);
});
assert_throws_js(TypeError, function() {
ctx.fill(null, null);
});
assert_throws_js(TypeError, function() {
ctx.fill(null, 'nonzero');
});
assert_throws_js(TypeError, function() {
ctx.fill(path, null);
});
assert_throws_js(TypeError, function() {
ctx.fill([], 'nonzero');
});
assert_throws_js(TypeError, function() {
ctx.fill({}, 'nonzero');
});
assert_throws_js(TypeError, function() {
ctx.fill(null, 'evenodd');
});
assert_throws_js(TypeError, function() {
ctx.fill([], 'evenodd');
});
assert_throws_js(TypeError, function() {
ctx.fill({}, 'evenodd');
});
assert_throws_js(TypeError, function() {
ctx.fill('gazonk');
});
assert_throws_js(TypeError, function() {
ctx.fill(path, 'gazonk');
});
assert_throws_js(TypeError, function() {
ctx.fill(undefined, undefined);
});
assert_throws_js(TypeError, function() {
ctx.fill(undefined, path);
});
}, "Series of tests to ensure fill() works with path and winding rule parameters.");
</script>
</body>