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// Copyright (c) 2016 The WebM 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 in the root of the source
// tree. An additional intellectual property rights grant can be found
// in the file PATENTS. All contributing project authors may
// be found in the AUTHORS file in the root of the source tree.
#include "src/var_int_parser.h"
#include "gtest/gtest.h"
#include "test_utils/parser_test.h"
#include "webm/status.h"
using webm::ParserTest;
using webm::Status;
using webm::VarIntParser;
namespace {
class VarIntParserTest : public ParserTest<VarIntParser> {};
TEST_F(VarIntParserTest, NoMarkerBit) {
SetReaderData({0x00});
ParseAndExpectResult(Status::kInvalidElementValue);
}
TEST_F(VarIntParserTest, EarlyEndOfFile) {
SetReaderData({0x01});
ParseAndExpectResult(Status::kEndOfFile);
}
TEST_F(VarIntParserTest, ValidValue) {
SetReaderData({0x80});
ParseAndVerify();
EXPECT_EQ(static_cast<std::uint64_t>(0), parser_.value());
EXPECT_EQ(1, parser_.encoded_length());
ResetParser();
SetReaderData({0x01, 0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE});
ParseAndVerify();
EXPECT_EQ(static_cast<std::uint64_t>(0x123456789ABCDE), parser_.value());
EXPECT_EQ(8, parser_.encoded_length());
}
TEST_F(VarIntParserTest, IncrementalParse) {
SetReaderData({0x11, 0x23, 0x45, 0x67});
IncrementalParseAndVerify();
EXPECT_EQ(static_cast<std::uint64_t>(0x01234567), parser_.value());
EXPECT_EQ(4, parser_.encoded_length());
}
} // namespace
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