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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/der/input.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace net::der::test {
constexpr uint8_t kInput[] = {'t', 'e', 's', 't'};
const uint8_t kInput2[] = {'t', 'e', 'a', 'l'};
TEST(InputTest, Equals) {
Input test(kInput);
Input test2(kInput);
EXPECT_EQ(test, test2);
uint8_t input_copy[std::size(kInput)] = {0};
memcpy(input_copy, kInput, std::size(kInput));
Input test_copy(input_copy);
EXPECT_EQ(test, test_copy);
Input test_truncated(kInput, std::size(kInput) - 1);
EXPECT_NE(test, test_truncated);
EXPECT_NE(test_truncated, test);
}
TEST(InputTest, LessThan) {
Input test(kInput);
EXPECT_FALSE(test < test);
Input test2(kInput2);
EXPECT_FALSE(test < test2);
EXPECT_TRUE(test2 < test);
Input test_truncated(kInput, std::size(kInput) - 1);
EXPECT_FALSE(test < test_truncated);
EXPECT_TRUE(test_truncated < test);
}
TEST(InputTest, AsString) {
Input input(kInput);
std::string expected_string(reinterpret_cast<const char*>(kInput),
std::size(kInput));
EXPECT_EQ(expected_string, input.AsString());
}
TEST(InputTest, StaticArray) {
Input input(kInput);
EXPECT_EQ(std::size(kInput), input.Length());
Input input2(kInput);
EXPECT_EQ(input, input2);
}
TEST(InputTest, ConstExpr) {
constexpr Input default_input;
static_assert(default_input.Length() == 0);
static_assert(default_input.UnsafeData() == nullptr);
constexpr Input const_array_input(kInput);
static_assert(const_array_input.Length() == 4);
static_assert(const_array_input.UnsafeData() == kInput);
static_assert(default_input < const_array_input);
constexpr Input ptr_len_input(kInput, 2);
static_assert(ptr_len_input.Length() == 2);
static_assert(ptr_len_input.UnsafeData() == kInput);
static_assert(ptr_len_input < const_array_input);
Input runtime_input(kInput2, 2);
EXPECT_EQ(runtime_input, ptr_len_input);
}
TEST(ByteReaderTest, NoReadPastEnd) {
ByteReader reader(Input(nullptr, 0));
uint8_t data;
EXPECT_FALSE(reader.ReadByte(&data));
}
TEST(ByteReaderTest, ReadToEnd) {
uint8_t out;
ByteReader reader((Input(kInput)));
for (uint8_t input : kInput) {
ASSERT_TRUE(reader.ReadByte(&out));
ASSERT_EQ(input, out);
}
EXPECT_FALSE(reader.ReadByte(&out));
}
TEST(ByteReaderTest, PartialReadFails) {
Input out;
ByteReader reader((Input(kInput)));
EXPECT_FALSE(reader.ReadBytes(5, &out));
}
TEST(ByteReaderTest, HasMore) {
Input out;
ByteReader reader((Input(kInput)));
ASSERT_TRUE(reader.HasMore());
ASSERT_TRUE(reader.ReadBytes(std::size(kInput), &out));
ASSERT_FALSE(reader.HasMore());
}
} // namespace net::der::test
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