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92 lines
2.1 KiB
92 lines
2.1 KiB
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/**
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* Module dependencies.
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*/
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var Canvas = require('../')
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, Image = Canvas.Image
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, assert = require('assert');
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var png = __dirname + '/fixtures/clock.png';
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describe('Image', function () {
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it('Image', function () {
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assert.ok(Image instanceof Function);
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});
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it('Image#onload', function () {
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var img = new Image
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, onloadCalled = 0;
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assert.strictEqual(null, img.onload);
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assert.strictEqual(false, img.complete);
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img.onload = function () {
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onloadCalled += 1;
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assert.strictEqual(img.src, png);
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};
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img.src = png;
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assert.strictEqual(1, onloadCalled);
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assert.strictEqual(img.src, png);
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assert.strictEqual(true, img.complete);
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assert.strictEqual(320, img.width);
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assert.strictEqual(320, img.height);
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});
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it('Image#onerror', function () {
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var img = new Image
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, error
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, onerrorCalled = 0;
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assert.strictEqual(null, img.onerror);
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assert.strictEqual(false, img.complete);
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img.onload = function () {
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assert.fail('called onload');
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};
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img.onerror = function (err) {
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onerrorCalled += 1;
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error = err;
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};
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try {
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img.src = png + 's';
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} catch (err) {
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assert.fail('error did not invoke onerror(): ' + err);
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}
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assert.strictEqual(1, onerrorCalled);
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assert.strictEqual(img.src, png + 's');
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assert.strictEqual(false, img.complete);
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assert.ok(error instanceof Error, 'did not invoke onerror() with error');
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});
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it('Image#{width,height}', function () {
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var img = new Image
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, onloadCalled = 0;
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assert.strictEqual(0, img.width);
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assert.strictEqual(0, img.height);
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img.onload = function () {
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onloadCalled += 1;
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assert.strictEqual(320, img.width);
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assert.strictEqual(320, img.height);
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};
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img.src = png;
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assert.strictEqual(1, onloadCalled);
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assert.strictEqual(320, img.width);
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assert.strictEqual(320, img.height);
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});
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it('Image#src set empty buffer', function () {
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var image = new Canvas.Image();
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image.src = new Buffer(0);
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image.src = new Buffer('');
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});
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});
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