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// Copyright (c) the JPEG XL Project 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 "lib/jxl/padded_bytes.h"
#include <jxl/memory_manager.h>
#include <cstddef>
#include "lib/jxl/test_memory_manager.h"
#include "lib/jxl/test_utils.h"
#include "lib/jxl/testing.h"
namespace jxl {
namespace {
TEST(PaddedBytesTest, TestNonEmptyFirstByteZero) {
JxlMemoryManager* memory_manager = jxl::test::MemoryManager();
JXL_TEST_ASSIGN_OR_DIE(PaddedBytes pb,
PaddedBytes::WithInitialSpace(memory_manager, 1));
EXPECT_EQ(0, pb[0]);
// Even after resizing..
EXPECT_TRUE(pb.resize(20));
EXPECT_EQ(0, pb[0]);
// And reserving.
EXPECT_TRUE(pb.reserve(200));
EXPECT_EQ(0, pb[0]);
}
TEST(PaddedBytesTest, TestEmptyFirstByteZero) {
JxlMemoryManager* memory_manager = jxl::test::MemoryManager();
JXL_TEST_ASSIGN_OR_DIE(PaddedBytes pb,
PaddedBytes::WithInitialSpace(memory_manager, 0));
// After resizing - new zero is written despite there being nothing to copy.
ASSERT_TRUE(pb.resize(20));
EXPECT_EQ(0, pb[0]);
}
TEST(PaddedBytesTest, TestFillWithoutReserve) {
JxlMemoryManager* memory_manager = jxl::test::MemoryManager();
PaddedBytes pb{memory_manager};
for (size_t i = 0; i < 170u; ++i) {
EXPECT_TRUE(pb.push_back(i));
}
EXPECT_EQ(170u, pb.size());
EXPECT_GE(pb.capacity(), 170u);
}
TEST(PaddedBytesTest, TestFillWithExactReserve) {
JxlMemoryManager* memory_manager = jxl::test::MemoryManager();
PaddedBytes pb{memory_manager};
EXPECT_TRUE(pb.reserve(170));
for (size_t i = 0; i < 170u; ++i) {
EXPECT_TRUE(pb.push_back(i));
}
EXPECT_EQ(170u, pb.size());
EXPECT_EQ(pb.capacity(), 170u);
}
TEST(PaddedBytesTest, TestFillWithMoreReserve) {
JxlMemoryManager* memory_manager = jxl::test::MemoryManager();
PaddedBytes pb{memory_manager};
EXPECT_TRUE(pb.reserve(171));
for (size_t i = 0; i < 170u; ++i) {
EXPECT_TRUE(pb.push_back(i));
}
EXPECT_EQ(170u, pb.size());
EXPECT_GT(pb.capacity(), 170u);
}
} // namespace
} // namespace jxl