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-rw-r--r--test/renderer/image_manager.test.cpp61
1 files changed, 60 insertions, 1 deletions
diff --git a/test/renderer/image_manager.test.cpp b/test/renderer/image_manager.test.cpp
index 51b257094a..a5fffce479 100644
--- a/test/renderer/image_manager.test.cpp
+++ b/test/renderer/image_manager.test.cpp
@@ -164,8 +164,10 @@ TEST(ImageManager, NotifiesRequestorImmediatelyIfDependenciesAreSatisfied) {
class StubImageManagerObserver : public ImageManagerObserver {
public:
int count = 0;
- virtual void onStyleImageMissing(const std::string&, std::function<void()> done) override {
+ std::function<void (const std::string&)> imageMissing = [](const std::string&){};
+ virtual void onStyleImageMissing(const std::string& id, std::function<void()> done) override {
count++;
+ imageMissing(id);
done();
}
};
@@ -234,3 +236,60 @@ TEST(ImageManager, OnStyleImageMissingAfterSpriteLoaded) {
EXPECT_EQ(observer.count, 1);
ASSERT_TRUE(notified);
}
+
+TEST(ImageManager, ReduceMemoryUsage) {
+ ImageManager imageManager;
+ StubImageManagerObserver observer;
+
+ observer.imageMissing = [&imageManager] (const std::string& id) {
+ imageManager.addImage(makeMutable<style::Image::Impl>(id, PremultipliedImage({ 16, 16 }), 1));
+ };
+
+ imageManager.setObserver(&observer);
+ imageManager.setLoaded(true);
+
+ // Single requestor
+ {
+ std::unique_ptr<StubImageRequestor> requestor = std::make_unique<StubImageRequestor>(imageManager);
+ imageManager.getImages(*requestor, std::make_pair(ImageDependencies{{"missing", ImageType::Icon}}, 0ull));
+ EXPECT_EQ(observer.count, 1);
+ ASSERT_FALSE(imageManager.getImage("missing") == nullptr);
+ }
+
+ // Reduce memory usage and check that unused image was deleted.
+ imageManager.reduceMemoryUse();
+ ASSERT_TRUE(imageManager.getImage("missing") == nullptr);
+
+ // Multiple requestors
+ {
+ std::unique_ptr<StubImageRequestor> requestor1 = std::make_unique<StubImageRequestor>(imageManager);
+ std::unique_ptr<StubImageRequestor> requestor2 = std::make_unique<StubImageRequestor>(imageManager);
+ imageManager.getImages(*requestor1, std::make_pair(ImageDependencies{{"missing", ImageType::Icon}}, 0ull));
+ imageManager.getImages(*requestor2, std::make_pair(ImageDependencies{{"missing", ImageType::Icon}}, 1ull));
+ EXPECT_EQ(observer.count, 2);
+ ASSERT_FALSE(imageManager.getImage("missing") == nullptr);
+ }
+
+ // Reduce memory usage and check that unused image was deleted when all requestors are destructed.
+ imageManager.reduceMemoryUse();
+ ASSERT_TRUE(imageManager.getImage("missing") == nullptr);
+
+ // Multiple requestors, check that image resource is not destroyed if there is at least 1 requestor that uses it.
+ std::unique_ptr<StubImageRequestor> requestor = std::make_unique<StubImageRequestor>(imageManager);
+ {
+ std::unique_ptr<StubImageRequestor> requestor1 = std::make_unique<StubImageRequestor>(imageManager);
+ imageManager.getImages(*requestor, std::make_pair(ImageDependencies{{"missing", ImageType::Icon}}, 0ull));
+ imageManager.getImages(*requestor1, std::make_pair(ImageDependencies{{"missing", ImageType::Icon}}, 1ull));
+ EXPECT_EQ(observer.count, 3);
+ ASSERT_FALSE(imageManager.getImage("missing") == nullptr);
+ }
+
+ // Reduce memory usage and check that requested image is not destructed.
+ imageManager.reduceMemoryUse();
+ ASSERT_FALSE(imageManager.getImage("missing") == nullptr);
+
+ // Release last requestor and check if resource was released after reduceMemoryUse().
+ requestor.reset();
+ imageManager.reduceMemoryUse();
+ ASSERT_TRUE(imageManager.getImage("missing") == nullptr);
+}