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/gunit.h"
14 #include "webrtc/base/helpers.h"
15 #include "webrtc/base/ssladapter.h"
16
17 namespace rtc {
18
19 class RandomTest : public testing::Test {};
20
TEST_F(RandomTest,TestCreateRandomId)21 TEST_F(RandomTest, TestCreateRandomId) {
22 CreateRandomId();
23 }
24
TEST_F(RandomTest,TestCreateRandomDouble)25 TEST_F(RandomTest, TestCreateRandomDouble) {
26 for (int i = 0; i < 100; ++i) {
27 double r = CreateRandomDouble();
28 EXPECT_GE(r, 0.0);
29 EXPECT_LT(r, 1.0);
30 }
31 }
32
TEST_F(RandomTest,TestCreateNonZeroRandomId)33 TEST_F(RandomTest, TestCreateNonZeroRandomId) {
34 EXPECT_NE(0U, CreateRandomNonZeroId());
35 }
36
TEST_F(RandomTest,TestCreateRandomString)37 TEST_F(RandomTest, TestCreateRandomString) {
38 std::string random = CreateRandomString(256);
39 EXPECT_EQ(256U, random.size());
40 std::string random2;
41 EXPECT_TRUE(CreateRandomString(256, &random2));
42 EXPECT_NE(random, random2);
43 EXPECT_EQ(256U, random2.size());
44 }
45
TEST_F(RandomTest,TestCreateRandomUuid)46 TEST_F(RandomTest, TestCreateRandomUuid) {
47 std::string random = CreateRandomUuid();
48 EXPECT_EQ(36U, random.size());
49 }
50
TEST_F(RandomTest,TestCreateRandomForTest)51 TEST_F(RandomTest, TestCreateRandomForTest) {
52 // Make sure we get the output we expect.
53 SetRandomTestMode(true);
54 EXPECT_EQ(2154761789U, CreateRandomId());
55 EXPECT_EQ("h0ISP4S5SJKH/9EY", CreateRandomString(16));
56 EXPECT_EQ("41706e92-cdd3-46d9-a22d-8ff1737ffb11", CreateRandomUuid());
57
58 // Reset and make sure we get the same output.
59 SetRandomTestMode(true);
60 EXPECT_EQ(2154761789U, CreateRandomId());
61 EXPECT_EQ("h0ISP4S5SJKH/9EY", CreateRandomString(16));
62 EXPECT_EQ("41706e92-cdd3-46d9-a22d-8ff1737ffb11", CreateRandomUuid());
63
64 // Test different character sets.
65 SetRandomTestMode(true);
66 std::string str;
67 EXPECT_TRUE(CreateRandomString(16, "a", &str));
68 EXPECT_EQ("aaaaaaaaaaaaaaaa", str);
69 EXPECT_TRUE(CreateRandomString(16, "abc", &str));
70 EXPECT_EQ("acbccaaaabbaacbb", str);
71
72 // Turn off test mode for other tests.
73 SetRandomTestMode(false);
74 }
75
76 } // namespace rtc
77