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// Copyright 2022 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "core/fxcrt/small_buffer.h"
#include <algorithm>
#include "testing/gtest/include/gtest/gtest.h"
namespace fxcrt {
TEST(SmallBuffer, Empty) {
SmallBuffer<int, 4> buffer(0);
EXPECT_EQ(buffer.data(), buffer.fixed_for_test());
EXPECT_EQ(buffer.begin(), buffer.end());
}
TEST(SmallBuffer, NoFixed) {
SmallBuffer<int, 0> buffer(4);
EXPECT_EQ(buffer.data(), buffer.dynamic_for_test());
std::fill(buffer.begin(), buffer.end(), 42);
int* ptr = buffer.data();
EXPECT_EQ(42, ptr[0]);
EXPECT_EQ(42, ptr[1]);
EXPECT_EQ(42, ptr[2]);
EXPECT_EQ(42, ptr[3]);
}
TEST(SmallBuffer, NoFixedEmpty) {
SmallBuffer<int, 0> buffer(0);
EXPECT_EQ(buffer.data(), buffer.fixed_for_test());
EXPECT_EQ(buffer.begin(), buffer.end());
}
TEST(SmallBuffer, Fixed) {
SmallBuffer<int, 4> buffer(2);
EXPECT_EQ(buffer.data(), buffer.fixed_for_test());
std::fill(buffer.begin(), buffer.end(), 42);
int* ptr = buffer.data();
EXPECT_EQ(42, ptr[0]);
EXPECT_EQ(42, ptr[1]);
}
TEST(SmallBuffer, Dynamic) {
SmallBuffer<int, 2> buffer(4);
EXPECT_EQ(buffer.data(), buffer.dynamic_for_test());
std::fill(buffer.begin(), buffer.end(), 42);
int* ptr = buffer.data();
EXPECT_EQ(42, ptr[0]);
EXPECT_EQ(42, ptr[1]);
EXPECT_EQ(42, ptr[2]);
EXPECT_EQ(42, ptr[3]);
}
} // namespace fxcrt
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