1// Copyright (c) 2012 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.
4//
5// Unit test for string manipulation functions used in the RLZ library.
6
7#include "rlz/lib/string_utils.h"
8
9#include "base/basictypes.h"
10#include "base/logging.h"
11#include "base/strings/utf_string_conversions.h"
12#include "rlz/lib/assert.h"
13#include "testing/gmock/include/gmock/gmock.h"
14#include "testing/gtest/include/gtest/gtest.h"
15
16TEST(StringUtilsUnittest, IsAscii) {
17  rlz_lib::SetExpectedAssertion("");
18
19  char bad_letters[] = {'\x80', '\xA0', '\xFF'};
20  for (size_t i = 0; i < arraysize(bad_letters); ++i)
21    EXPECT_FALSE(rlz_lib::IsAscii(bad_letters[i]));
22
23  char good_letters[] = {'A', '~', '\n', 0x7F, 0x00};
24  for (size_t i = 0; i < arraysize(good_letters); ++i)
25    EXPECT_TRUE(rlz_lib::IsAscii(good_letters[i]));
26}
27
28TEST(StringUtilsUnittest, HexStringToInteger) {
29  rlz_lib::SetExpectedAssertion("HexStringToInteger: text is NULL.");
30  EXPECT_EQ(0, rlz_lib::HexStringToInteger(NULL));
31
32  rlz_lib::SetExpectedAssertion("");
33  EXPECT_EQ(0, rlz_lib::HexStringToInteger(""));
34  EXPECT_EQ(0, rlz_lib::HexStringToInteger("   "));
35  EXPECT_EQ(0, rlz_lib::HexStringToInteger("  0x  "));
36  EXPECT_EQ(0, rlz_lib::HexStringToInteger("  0x0  "));
37  EXPECT_EQ(0x12345, rlz_lib::HexStringToInteger("12345"));
38  EXPECT_EQ(0xa34Ed0, rlz_lib::HexStringToInteger("a34Ed0"));
39  EXPECT_EQ(0xa34Ed0, rlz_lib::HexStringToInteger("0xa34Ed0"));
40  EXPECT_EQ(0xa34Ed0, rlz_lib::HexStringToInteger("   0xa34Ed0"));
41  EXPECT_EQ(0xa34Ed0, rlz_lib::HexStringToInteger("0xa34Ed0   "));
42  EXPECT_EQ(0xa34Ed0, rlz_lib::HexStringToInteger("   0xa34Ed0   "));
43  EXPECT_EQ(0xa34Ed0, rlz_lib::HexStringToInteger("   0x000a34Ed0   "));
44  EXPECT_EQ(0xa34Ed0, rlz_lib::HexStringToInteger("   000a34Ed0   "));
45
46  rlz_lib::SetExpectedAssertion(
47      "HexStringToInteger: text contains non-hex characters.");
48  EXPECT_EQ(0x12ff, rlz_lib::HexStringToInteger("12ffg"));
49  EXPECT_EQ(0x12f, rlz_lib::HexStringToInteger("12f 121"));
50  EXPECT_EQ(0x12f, rlz_lib::HexStringToInteger("12f 121"));
51  EXPECT_EQ(0, rlz_lib::HexStringToInteger("g12f"));
52  EXPECT_EQ(0, rlz_lib::HexStringToInteger("  0x0  \n"));
53
54  rlz_lib::SetExpectedAssertion("");
55}
56
57TEST(StringUtilsUnittest, TestBytesToString) {
58  unsigned char data[] = {0x1E, 0x00, 0x21, 0x67, 0xFF};
59  std::string result;
60
61  EXPECT_FALSE(rlz_lib::BytesToString(NULL, 5, &result));
62  EXPECT_FALSE(rlz_lib::BytesToString(data, 5, NULL));
63  EXPECT_FALSE(rlz_lib::BytesToString(NULL, 5, NULL));
64
65  EXPECT_TRUE(rlz_lib::BytesToString(data, 5, &result));
66  EXPECT_EQ(std::string("1E002167FF"), result);
67  EXPECT_TRUE(rlz_lib::BytesToString(data, 4, &result));
68  EXPECT_EQ(std::string("1E002167"), result);
69}
70