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Side by Side Diff: webrtc/base/helpers_unittest.cc

Issue 2877023002: Move webrtc/{base => rtc_base} (Closed)
Patch Set: update presubmit.py and DEPS include rules Created 3 years, 5 months ago
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1 /*
2 * Copyright 2004 The WebRTC Project Authors. All rights reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include <string>
12
13 #include "webrtc/base/buffer.h"
14 #include "webrtc/base/gunit.h"
15 #include "webrtc/base/helpers.h"
16 #include "webrtc/base/ssladapter.h"
17
18 namespace rtc {
19
20 class RandomTest : public testing::Test {};
21
22 TEST_F(RandomTest, TestCreateRandomId) {
23 CreateRandomId();
24 }
25
26 TEST_F(RandomTest, TestCreateRandomDouble) {
27 for (int i = 0; i < 100; ++i) {
28 double r = CreateRandomDouble();
29 EXPECT_GE(r, 0.0);
30 EXPECT_LT(r, 1.0);
31 }
32 }
33
34 TEST_F(RandomTest, TestCreateNonZeroRandomId) {
35 EXPECT_NE(0U, CreateRandomNonZeroId());
36 }
37
38 TEST_F(RandomTest, TestCreateRandomString) {
39 std::string random = CreateRandomString(256);
40 EXPECT_EQ(256U, random.size());
41 std::string random2;
42 EXPECT_TRUE(CreateRandomString(256, &random2));
43 EXPECT_NE(random, random2);
44 EXPECT_EQ(256U, random2.size());
45 }
46
47 TEST_F(RandomTest, TestCreateRandomData) {
48 static size_t kRandomDataLength = 32;
49 std::string random1;
50 std::string random2;
51 EXPECT_TRUE(CreateRandomData(kRandomDataLength, &random1));
52 EXPECT_EQ(kRandomDataLength, random1.size());
53 EXPECT_TRUE(CreateRandomData(kRandomDataLength, &random2));
54 EXPECT_EQ(kRandomDataLength, random2.size());
55 EXPECT_NE(0, memcmp(random1.data(), random2.data(), kRandomDataLength));
56 }
57
58 TEST_F(RandomTest, TestCreateRandomStringEvenlyDivideTable) {
59 static std::string kUnbiasedTable("01234567");
60 std::string random;
61 EXPECT_TRUE(CreateRandomString(256, kUnbiasedTable, &random));
62 EXPECT_EQ(256U, random.size());
63
64 static std::string kBiasedTable("0123456789");
65 EXPECT_FALSE(CreateRandomString(256, kBiasedTable, &random));
66 EXPECT_EQ(0U, random.size());
67 }
68
69 TEST_F(RandomTest, TestCreateRandomUuid) {
70 std::string random = CreateRandomUuid();
71 EXPECT_EQ(36U, random.size());
72 }
73
74 TEST_F(RandomTest, TestCreateRandomForTest) {
75 // Make sure we get the output we expect.
76 SetRandomTestMode(true);
77 EXPECT_EQ(2154761789U, CreateRandomId());
78 EXPECT_EQ("h0ISP4S5SJKH/9EY", CreateRandomString(16));
79 EXPECT_EQ("41706e92-cdd3-46d9-a22d-8ff1737ffb11", CreateRandomUuid());
80 static size_t kRandomDataLength = 32;
81 std::string random;
82 EXPECT_TRUE(CreateRandomData(kRandomDataLength, &random));
83 EXPECT_EQ(kRandomDataLength, random.size());
84 Buffer expected("\xbd\x52\x2a\x4b\x97\x93\x2f\x1c"
85 "\xc4\x72\xab\xa2\x88\x68\x3e\xcc"
86 "\xa3\x8d\xaf\x13\x3b\xbc\x83\xbb"
87 "\x16\xf1\xcf\x56\x0c\xf5\x4a\x8b", kRandomDataLength);
88 EXPECT_EQ(0, memcmp(expected.data(), random.data(), kRandomDataLength));
89
90 // Reset and make sure we get the same output.
91 SetRandomTestMode(true);
92 EXPECT_EQ(2154761789U, CreateRandomId());
93 EXPECT_EQ("h0ISP4S5SJKH/9EY", CreateRandomString(16));
94 EXPECT_EQ("41706e92-cdd3-46d9-a22d-8ff1737ffb11", CreateRandomUuid());
95 EXPECT_TRUE(CreateRandomData(kRandomDataLength, &random));
96 EXPECT_EQ(kRandomDataLength, random.size());
97 EXPECT_EQ(0, memcmp(expected.data(), random.data(), kRandomDataLength));
98
99 // Test different character sets.
100 SetRandomTestMode(true);
101 std::string str;
102 EXPECT_TRUE(CreateRandomString(16, "a", &str));
103 EXPECT_EQ("aaaaaaaaaaaaaaaa", str);
104 EXPECT_TRUE(CreateRandomString(16, "abcd", &str));
105 EXPECT_EQ("dbaaabdaccbcabbd", str);
106
107 // Turn off test mode for other tests.
108 SetRandomTestMode(false);
109 }
110
111 } // namespace rtc
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