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Add and improve tests

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This commit is contained in:
Andreas Hocevar
2017-11-16 09:30:36 +01:00
parent febbba78dc
commit c35789ba73
2 changed files with 52 additions and 35 deletions
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78
test/spec/ol/render/canvas/index.test.js
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@@ -12,56 +12,72 @@ describe('ol.render.canvas', function() {
describe('ol.render.canvas.checkFont()', function() {
beforeEach(function() {
ol.obj.clear(ol.render.canvas.checkedFonts_);
ol.render.canvas.getMeasureContext();
ol.render.canvas.measureTextHeight('12px sans-serif');
});
var checkFont = ol.render.canvas.checkFont;
var retries = 60;
it('does not clear the label cache for unavailable fonts', function(done) {
ol.obj.clear(ol.render.canvas.checkedFonts_);
it('does not clear label cache and measurements for unavailable fonts', function(done) {
this.timeout(3000);
var spy = sinon.spy();
ol.events.listen(ol.render.canvas.labelCache, 'clear', spy);
var interval = setInterval(function() {
if (ol.render.canvas.checkedFonts_['foo'] == retries && ol.render.canvas.checkedFonts_['sans-serif'] == retries) {
clearInterval(interval);
ol.events.unlisten(ol.render.canvas.labelCache, 'clear', spy);
expect(spy.callCount).to.be(0);
expect(ol.render.canvas.measureContext_).to.not.be(null);
expect(ol.render.canvas.textHeights_).to.not.eql({});
done();
}
}, 32);
checkFont('12px foo,sans-serif');
setTimeout(function() {
ol.events.unlisten(ol.render.canvas.labelCache, 'clear', spy);
expect(spy.callCount).to.be(0);
done();
}, 1600);
});
it('does not clear the label cache for available fonts', function(done) {
ol.obj.clear(ol.render.canvas.checkedFonts_);
it('does not clear label cache and measurements for available fonts', function(done) {
var spy = sinon.spy();
ol.events.listen(ol.render.canvas.labelCache, 'clear', spy);
var interval = setInterval(function() {
if (ol.render.canvas.checkedFonts_['sans-serif'] == retries) {
clearInterval(interval);
ol.events.unlisten(ol.render.canvas.labelCache, 'clear', spy);
expect(spy.callCount).to.be(0);
expect(ol.render.canvas.measureContext_).to.not.be(null);
expect(ol.render.canvas.textHeights_).to.not.eql({});
done();
}
}, 32);
checkFont('12px sans-serif');
setTimeout(function() {
ol.events.unlisten(ol.render.canvas.labelCache, 'clear', spy);
expect(spy.callCount).to.be(0);
done();
}, 800);
});
it('does not clear the label cache for the \'monospace\' font', function(done) {
ol.obj.clear(ol.render.canvas.checkedFonts_);
it('does not clear label cache and measurements for the \'monospace\' font', function(done) {
var spy = sinon.spy();
ol.events.listen(ol.render.canvas.labelCache, 'clear', spy);
var interval = setInterval(function() {
if (ol.render.canvas.checkedFonts_['monospace'] == retries) {
clearInterval(interval);
ol.events.unlisten(ol.render.canvas.labelCache, 'clear', spy);
expect(spy.callCount).to.be(0);
expect(ol.render.canvas.measureContext_).to.not.be(null);
expect(ol.render.canvas.textHeights_).to.not.eql({});
done();
}
}, 32);
checkFont('12px monospace');
setTimeout(function() {
ol.events.unlisten(ol.render.canvas.labelCache, 'clear', spy);
expect(spy.callCount).to.be(0);
done();
}, 800);
});
it('clears the label cache for fonts that become available', function(done) {
ol.obj.clear(ol.render.canvas.checkedFonts_);
it('clears label cache and measurements for fonts that become available', function(done) {
head.appendChild(font);
var spy = sinon.spy();
ol.events.listen(ol.render.canvas.labelCache, 'clear', spy);
checkFont('12px Abel');
setTimeout(function() {
ol.events.unlisten(ol.render.canvas.labelCache, 'clear', spy);
head.removeChild(font);
expect(spy.callCount).to.be(1);
ol.events.listen(ol.render.canvas.labelCache, 'clear', function() {
expect(ol.render.canvas.measureContext_).to.be(null);
expect(ol.render.canvas.textHeights_).to.eql({});
done();
}, 1600);
});
checkFont('12px Abel');
});
});