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Unified Diff: blimp/common/compositor/reference_tracker_unittest.cc

Issue 1982893002: [blimp] Add SkPicture caching support. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Addressed comments from kmarshall Created 4 years, 6 months ago
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Index: blimp/common/compositor/reference_tracker_unittest.cc
diff --git a/blimp/common/compositor/reference_tracker_unittest.cc b/blimp/common/compositor/reference_tracker_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..61456afc556f829de84bbc604d8a1f0511f29846
--- /dev/null
+++ b/blimp/common/compositor/reference_tracker_unittest.cc
@@ -0,0 +1,165 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "blimp/common/compositor/reference_tracker.h"
+
+#include <stdint.h>
+#include <algorithm>
+#include <unordered_set>
+#include <vector>
+
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace blimp {
+namespace {
+
+class ReferenceTrackerTest : public testing::Test {
+ public:
+ ReferenceTrackerTest() {}
Kevin M 2016/06/21 21:35:04 Add override dtor
nyquist 2016/06/24 11:11:15 Done.
+
+ protected:
+ ReferenceTracker tracker_;
+ std::vector<uint32_t> added_;
+ std::vector<uint32_t> removed_;
+
+ private:
+ DISALLOW_COPY_AND_ASSIGN(ReferenceTrackerTest);
+};
+
+TEST_F(ReferenceTrackerTest, SingleItemCommitFlow) {
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_TRUE(added_.empty());
+ EXPECT_TRUE(removed_.empty());
+
+ uint32_t item = 1;
+ tracker_.IncrementRefCount(item);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_THAT(added_, testing::UnorderedElementsAre(item));
+ EXPECT_TRUE(removed_.empty());
+ added_.clear();
+
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_TRUE(added_.empty());
+ EXPECT_TRUE(removed_.empty());
+
+ tracker_.DecrementRefCount(item);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_TRUE(added_.empty());
+ EXPECT_THAT(removed_, testing::UnorderedElementsAre(item));
+}
+
+TEST_F(ReferenceTrackerTest, SingleItemMultipleTimesInSingleCommit) {
+ uint32_t item = 1;
+ tracker_.IncrementRefCount(item);
+ tracker_.IncrementRefCount(item);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_THAT(added_, testing::UnorderedElementsAre(item));
+ EXPECT_TRUE(removed_.empty());
+ added_.clear();
+
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_TRUE(added_.empty());
+ EXPECT_TRUE(removed_.empty());
+
+ tracker_.DecrementRefCount(item);
+ tracker_.DecrementRefCount(item);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_TRUE(added_.empty());
+ EXPECT_THAT(removed_, testing::UnorderedElementsAre(item));
+}
+
+TEST_F(ReferenceTrackerTest, SingleItemMultipleTimesAcrossCommits) {
+ uint32_t item = 1;
+ tracker_.IncrementRefCount(item);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_THAT(added_, testing::UnorderedElementsAre(item));
+ EXPECT_TRUE(removed_.empty());
+ added_.clear();
+
+ tracker_.IncrementRefCount(item);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_TRUE(added_.empty());
+ EXPECT_TRUE(removed_.empty());
+
+ tracker_.DecrementRefCount(item);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_TRUE(added_.empty());
+ EXPECT_TRUE(removed_.empty());
+
+ tracker_.DecrementRefCount(item);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_TRUE(added_.empty());
+ EXPECT_THAT(removed_, testing::UnorderedElementsAre(item));
+}
+
+TEST_F(ReferenceTrackerTest, SingleItemComplexInteractions) {
+ uint32_t item = 1;
+ tracker_.IncrementRefCount(item);
+ tracker_.DecrementRefCount(item);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_TRUE(added_.empty());
+ EXPECT_TRUE(removed_.empty());
+
+ tracker_.IncrementRefCount(item);
+ tracker_.DecrementRefCount(item);
+ tracker_.IncrementRefCount(item);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_THAT(added_, testing::UnorderedElementsAre(item));
+ EXPECT_TRUE(removed_.empty());
+ added_.clear();
+
+ tracker_.DecrementRefCount(item);
+ tracker_.IncrementRefCount(item);
+ tracker_.DecrementRefCount(item);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_TRUE(added_.empty());
+ EXPECT_THAT(removed_, testing::UnorderedElementsAre(item));
+}
+
+TEST_F(ReferenceTrackerTest, MultipleItems) {
+ uint32_t item1 = 1;
+ uint32_t item2 = 2;
+ uint32_t item3 = 3;
+ tracker_.IncrementRefCount(item1);
+ tracker_.IncrementRefCount(item2);
+ tracker_.IncrementRefCount(item3);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_THAT(added_, testing::UnorderedElementsAre(item1, item2, item3));
+ EXPECT_EQ(3U, added_.size());
+ EXPECT_TRUE(removed_.empty());
+ added_.clear();
+
+ tracker_.DecrementRefCount(item3);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_TRUE(added_.empty());
+ EXPECT_THAT(removed_, testing::UnorderedElementsAre(item3));
+ removed_.clear();
+
+ tracker_.DecrementRefCount(item2);
+ tracker_.IncrementRefCount(item3);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_EQ(1U, added_.size());
+ EXPECT_EQ(1U, removed_.size());
+ EXPECT_THAT(added_, testing::UnorderedElementsAre(item3));
+ EXPECT_THAT(removed_, testing::UnorderedElementsAre(item2));
+ added_.clear();
+ removed_.clear();
+
+ tracker_.IncrementRefCount(item2);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_THAT(added_, testing::UnorderedElementsAre(item2));
+ EXPECT_TRUE(removed_.empty());
+ added_.clear();
+
+ tracker_.DecrementRefCount(item1);
+ tracker_.DecrementRefCount(item2);
+ tracker_.DecrementRefCount(item3);
+ tracker_.CommitRefCounts(&added_, &removed_);
+ EXPECT_TRUE(added_.empty());
+ EXPECT_THAT(removed_, testing::UnorderedElementsAre(item1, item2, item3));
+}
+
+} // namespace
+} // namespace blimp

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