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Diffstat (limited to 'emulator/opengl/shared/emugl/common/pod_vector_unittest.cpp')
-rw-r--r-- | emulator/opengl/shared/emugl/common/pod_vector_unittest.cpp | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/emulator/opengl/shared/emugl/common/pod_vector_unittest.cpp b/emulator/opengl/shared/emugl/common/pod_vector_unittest.cpp new file mode 100644 index 0000000..9ce509a --- /dev/null +++ b/emulator/opengl/shared/emugl/common/pod_vector_unittest.cpp @@ -0,0 +1,127 @@ +// Copyright (C) 2014 The Android Open Source Project +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include "emugl/common/pod_vector.h" + +#include <gtest/gtest.h> + +namespace emugl { + +static int hashIndex(size_t n) { + return static_cast<int>(((n >> 14) * 13773) + (n * 51)); +} + +TEST(PodVector, Empty) { + PodVector<int> v; + EXPECT_TRUE(v.empty()); + EXPECT_EQ(0U, v.size()); +} + +TEST(PodVector, AppendOneItem) { + PodVector<int> v; + v.append(10234); + EXPECT_FALSE(v.empty()); + EXPECT_EQ(1U, v.size()); + EXPECT_EQ(10234, v[0]); +} + +TEST(PodVector, AppendLotsOfItems) { + PodVector<int> v; + const size_t kMaxCount = 10000; + for (size_t n = 0; n < kMaxCount; ++n) { + v.append(hashIndex(n)); + } + EXPECT_EQ(kMaxCount, v.size()); + for (size_t n = 0; n < kMaxCount; ++n) { + EXPECT_EQ(hashIndex(n), v[n]) << "At index " << n; + } +} + +TEST(PodVector, RemoveFrontItems) { + PodVector<int> v; + const size_t kMaxCount = 100; + for (size_t n = 0; n < kMaxCount; ++n) { + v.append(hashIndex(n)); + } + EXPECT_EQ(kMaxCount, v.size()); + for (size_t n = 0; n < kMaxCount; ++n) { + EXPECT_EQ(hashIndex(n), v[0]) << "At index " << n; + v.remove(0U); + EXPECT_EQ(kMaxCount - n - 1U, v.size()) << "At index " << n; + } +} + +TEST(PodVector, PrependItems) { + PodVector<int> v; + const size_t kMaxCount = 100; + for (size_t n = 0; n < kMaxCount; ++n) { + v.prepend(hashIndex(n)); + } + EXPECT_EQ(kMaxCount, v.size()); + for (size_t n = 0; n < kMaxCount; ++n) { + EXPECT_EQ(hashIndex(kMaxCount - n - 1), v[n]) << "At index " << n; + } +} + +TEST(PodVector, ResizeExpands) { + PodVector<int> v; + const size_t kMaxCount = 100; + const size_t kMaxCount2 = 10000; + for (size_t n = 0; n < kMaxCount; ++n) { + v.append(hashIndex(n)); + } + EXPECT_EQ(kMaxCount, v.size()); + v.resize(kMaxCount2); + EXPECT_EQ(kMaxCount2, v.size()); + for (size_t n = 0; n < kMaxCount; ++n) { + EXPECT_EQ(hashIndex(n), v[n]) << "At index " << n; + } +} + +TEST(PodVector, ResizeTruncates) { + PodVector<int> v; + const size_t kMaxCount = 10000; + const size_t kMaxCount2 = 10; + for (size_t n = 0; n < kMaxCount; ++n) { + v.append(hashIndex(n)); + } + EXPECT_EQ(kMaxCount, v.size()); + v.resize(kMaxCount2); + EXPECT_EQ(kMaxCount2, v.size()); + for (size_t n = 0; n < kMaxCount2; ++n) { + EXPECT_EQ(hashIndex(n), v[n]) << "At index " << n; + } +} + + +TEST(PodVector, AssignmentOperator) { + PodVector<int> v1; + const size_t kMaxCount = 10000; + for (size_t n = 0; n < kMaxCount; ++n) { + v1.append(hashIndex(n)); + } + EXPECT_EQ(kMaxCount, v1.size()); + + PodVector<int> v2; + v2 = v1; + + v1.reserve(0); + + EXPECT_EQ(kMaxCount, v2.size()); + for (size_t n = 0; n < kMaxCount; ++n) { + EXPECT_EQ(hashIndex(n), v2[n]) << "At index " << n; + } +} + +} // namespace emugl |