// Test purging when the max cache size is exceeded
static void test_internal_purge(skiatest::Reporter* reporter, const sk_sp<SkSpecialImage>& image) {
SkASSERT(image->getSize());
const size_t kCacheSize = image->getSize() + 10;
SkAutoTUnref<SkImageFilter::Cache> cache(SkImageFilter::Cache::Create(kCacheSize));
SkIRect clip = SkIRect::MakeWH(100, 100);
SkImageFilter::Cache::Key key1(0, SkMatrix::I(), clip, image->uniqueID(), image->subset());
SkImageFilter::Cache::Key key2(1, SkMatrix::I(), clip, image->uniqueID(), image->subset());
SkIPoint offset = SkIPoint::Make(3, 4);
cache->set(key1, image.get(), offset);
SkIPoint foundOffset;
REPORTER_ASSERT(reporter, cache->get(key1, &foundOffset));
// This should knock the first one out of the cache
cache->set(key2, image.get(), offset);
REPORTER_ASSERT(reporter, cache->get(key2, &foundOffset));
REPORTER_ASSERT(reporter, !cache->get(key1, &foundOffset));
}
