Use scoped_ptr::Pass instead of scoped_ptr::PassAs<T>.
[chromium-blink-merge.git] / base / big_endian_unittest.cc
blob0e4b3f1812b7643d66268a5fe53f0afebd0247ec
1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "base/big_endian.h"
7 #include "base/strings/string_piece.h"
8 #include "testing/gtest/include/gtest/gtest.h"
10 namespace base {
12 TEST(BigEndianReaderTest, ReadsValues) {
13 char data[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF,
14 0x1A, 0x2B, 0x3C, 0x4D, 0x5E };
15 char buf[2];
16 uint8 u8;
17 uint16 u16;
18 uint32 u32;
19 uint64 u64;
20 base::StringPiece piece;
21 BigEndianReader reader(data, sizeof(data));
23 EXPECT_TRUE(reader.Skip(2));
24 EXPECT_EQ(data + 2, reader.ptr());
25 EXPECT_EQ(reader.remaining(), static_cast<int>(sizeof(data)) - 2);
26 EXPECT_TRUE(reader.ReadBytes(buf, sizeof(buf)));
27 EXPECT_EQ(0x2, buf[0]);
28 EXPECT_EQ(0x3, buf[1]);
29 EXPECT_TRUE(reader.ReadU8(&u8));
30 EXPECT_EQ(0x4, u8);
31 EXPECT_TRUE(reader.ReadU16(&u16));
32 EXPECT_EQ(0x0506, u16);
33 EXPECT_TRUE(reader.ReadU32(&u32));
34 EXPECT_EQ(0x0708090Au, u32);
35 EXPECT_TRUE(reader.ReadU64(&u64));
36 EXPECT_EQ(0x0B0C0D0E0F1A2B3Cllu, u64);
37 base::StringPiece expected(reader.ptr(), 2);
38 EXPECT_TRUE(reader.ReadPiece(&piece, 2));
39 EXPECT_EQ(2u, piece.size());
40 EXPECT_EQ(expected.data(), piece.data());
43 TEST(BigEndianReaderTest, RespectsLength) {
44 char data[8];
45 char buf[2];
46 uint8 u8;
47 uint16 u16;
48 uint32 u32;
49 uint64 u64;
50 base::StringPiece piece;
51 BigEndianReader reader(data, sizeof(data));
52 // 8 left
53 EXPECT_FALSE(reader.Skip(9));
54 EXPECT_TRUE(reader.Skip(1));
55 // 7 left
56 EXPECT_FALSE(reader.ReadU64(&u64));
57 EXPECT_TRUE(reader.Skip(4));
58 // 3 left
59 EXPECT_FALSE(reader.ReadU32(&u32));
60 EXPECT_FALSE(reader.ReadPiece(&piece, 4));
61 EXPECT_TRUE(reader.Skip(2));
62 // 1 left
63 EXPECT_FALSE(reader.ReadU16(&u16));
64 EXPECT_FALSE(reader.ReadBytes(buf, 2));
65 EXPECT_TRUE(reader.Skip(1));
66 // 0 left
67 EXPECT_FALSE(reader.ReadU8(&u8));
68 EXPECT_EQ(0, reader.remaining());
71 TEST(BigEndianWriterTest, WritesValues) {
72 char expected[] = { 0, 0, 2, 3, 4, 5, 6, 7, 8, 9, 0xA, 0xB, 0xC, 0xD, 0xE,
73 0xF, 0x1A, 0x2B, 0x3C };
74 char data[sizeof(expected)];
75 char buf[] = { 0x2, 0x3 };
76 memset(data, 0, sizeof(data));
77 BigEndianWriter writer(data, sizeof(data));
79 EXPECT_TRUE(writer.Skip(2));
80 EXPECT_TRUE(writer.WriteBytes(buf, sizeof(buf)));
81 EXPECT_TRUE(writer.WriteU8(0x4));
82 EXPECT_TRUE(writer.WriteU16(0x0506));
83 EXPECT_TRUE(writer.WriteU32(0x0708090A));
84 EXPECT_TRUE(writer.WriteU64(0x0B0C0D0E0F1A2B3Cllu));
85 EXPECT_EQ(0, memcmp(expected, data, sizeof(expected)));
88 TEST(BigEndianWriterTest, RespectsLength) {
89 char data[8];
90 char buf[2];
91 uint8 u8 = 0;
92 uint16 u16 = 0;
93 uint32 u32 = 0;
94 uint64 u64 = 0;
95 BigEndianWriter writer(data, sizeof(data));
96 // 8 left
97 EXPECT_FALSE(writer.Skip(9));
98 EXPECT_TRUE(writer.Skip(1));
99 // 7 left
100 EXPECT_FALSE(writer.WriteU64(u64));
101 EXPECT_TRUE(writer.Skip(4));
102 // 3 left
103 EXPECT_FALSE(writer.WriteU32(u32));
104 EXPECT_TRUE(writer.Skip(2));
105 // 1 left
106 EXPECT_FALSE(writer.WriteU16(u16));
107 EXPECT_FALSE(writer.WriteBytes(buf, 2));
108 EXPECT_TRUE(writer.Skip(1));
109 // 0 left
110 EXPECT_FALSE(writer.WriteU8(u8));
111 EXPECT_EQ(0, writer.remaining());
114 } // namespace base