86 lines
2.8 KiB
JavaScript
86 lines
2.8 KiB
JavaScript
goog.require('ol.events');
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goog.require('ol.obj');
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goog.require('ol.render.canvas');
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describe('ol.render.canvas', function() {
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var font = document.createElement('link');
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font.href = 'https://fonts.googleapis.com/css?family=Abel&text=wmytzilWMYTZIL%40%23%2F%26%3F%24%2510';
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font.rel = 'stylesheet';
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var head = document.getElementsByTagName('head')[0];
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describe('ol.render.canvas.checkFont()', function() {
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var checkFont = ol.render.canvas.checkFont;
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it('does not clear the label cache for unavailable fonts', function(done) {
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ol.obj.clear(ol.render.canvas.checkedFonts_);
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var spy = sinon.spy();
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ol.events.listen(ol.render.canvas.labelCache, 'clear', spy);
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checkFont('12px foo,sans-serif');
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setTimeout(function() {
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ol.events.unlisten(ol.render.canvas.labelCache, 'clear', spy);
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expect(spy.callCount).to.be(0);
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done();
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}, 1600);
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});
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it('does not clear the label cache for available fonts', function(done) {
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ol.obj.clear(ol.render.canvas.checkedFonts_);
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var spy = sinon.spy();
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ol.events.listen(ol.render.canvas.labelCache, 'clear', spy);
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checkFont('12px sans-serif');
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setTimeout(function() {
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ol.events.unlisten(ol.render.canvas.labelCache, 'clear', spy);
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expect(spy.callCount).to.be(0);
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done();
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}, 800);
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});
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it('does not clear the label cache for the \'monospace\' font', function(done) {
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ol.obj.clear(ol.render.canvas.checkedFonts_);
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var spy = sinon.spy();
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ol.events.listen(ol.render.canvas.labelCache, 'clear', spy);
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checkFont('12px monospace');
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setTimeout(function() {
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ol.events.unlisten(ol.render.canvas.labelCache, 'clear', spy);
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expect(spy.callCount).to.be(0);
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done();
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}, 800);
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});
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it('clears the label cache for fonts that become available', function(done) {
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ol.obj.clear(ol.render.canvas.checkedFonts_);
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head.appendChild(font);
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var spy = sinon.spy();
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ol.events.listen(ol.render.canvas.labelCache, 'clear', spy);
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checkFont('12px Abel');
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setTimeout(function() {
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ol.events.unlisten(ol.render.canvas.labelCache, 'clear', spy);
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head.removeChild(font);
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expect(spy.callCount).to.be(1);
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done();
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}, 1600);
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});
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});
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describe('rotateAtOffset', function() {
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it('rotates a canvas at an offset point', function() {
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var context = {
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translate: sinon.spy(),
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rotate: sinon.spy()
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};
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ol.render.canvas.rotateAtOffset(context, Math.PI, 10, 10);
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expect(context.translate.callCount).to.be(2);
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expect(context.translate.firstCall.args).to.eql([10, 10]);
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expect(context.translate.secondCall.args).to.eql([-10, -10]);
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expect(context.rotate.callCount).to.be(1);
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expect(context.rotate.firstCall.args).to.eql([Math.PI]);
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});
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});
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});
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