72 lines
2.0 KiB
JavaScript
72 lines
2.0 KiB
JavaScript
goog.provide('ol.test.style.IconImageCache');
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describe('ol.style.IconImageCache', function() {
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var originalMaxCacheSize;
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beforeEach(function() {
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var cache = ol.style.IconImageCache.getInstance();
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cache.clear();
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originalMaxCacheSize = cache.maxCacheSize;
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cache.maxCacheSize_ = 4;
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});
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afterEach(function() {
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var cache = ol.style.IconImageCache.getInstance();
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cache.maxCacheSize_ = originalMaxCacheSize;
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cache.clear();
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});
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describe('#expire', function() {
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it('expires images when expected', function() {
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var cache = ol.style.IconImageCache.getInstance();
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var i, src, iconImage, key;
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for (i = 0; i < 4; ++i) {
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src = i + '';
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iconImage = new ol.style.IconImage_(src, null);
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cache.set(src, null, iconImage);
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}
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expect(cache.cacheSize_).to.eql(4);
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cache.expire();
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expect(cache.cacheSize_).to.eql(4);
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src = '4';
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iconImage = new ol.style.IconImage_(src, null);
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cache.set(src, null, iconImage);
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expect(cache.cacheSize_).to.eql(5);
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cache.expire(); // remove '0' and '4'
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expect(cache.cacheSize_).to.eql(3);
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src = '0';
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iconImage = new ol.style.IconImage_(src, null);
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goog.events.listen(iconImage, goog.events.EventType.CHANGE,
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goog.nullFunction, false);
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cache.set(src, null, iconImage);
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expect(cache.cacheSize_).to.eql(4);
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src = '4';
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iconImage = new ol.style.IconImage_(src, null);
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goog.events.listen(iconImage, goog.events.EventType.CHANGE,
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goog.nullFunction, false);
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cache.set(src, null, iconImage);
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expect(cache.cacheSize_).to.eql(5);
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// check that '0' and '4' are not removed from the cache
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cache.expire();
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key = ol.style.IconImageCache.getKey('0', null);
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expect(key in cache.cache_).to.be.ok();
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key = ol.style.IconImageCache.getKey('4', null);
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expect(key in cache.cache_).to.be.ok();
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});
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});
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});
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goog.require('goog.events');
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goog.require('goog.events.EventType');
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goog.require('ol.style.IconImageCache');
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