1 // Copyright 2016 The Android Open Source Project
2 //
3 // This software is licensed under the terms of the GNU General Public
4 // License version 2, as published by the Free Software Foundation, and
5 // may be copied, distributed, and modified under those terms.
6 //
7 // This program is distributed in the hope that it will be useful,
8 // but WITHOUT ANY WARRANTY; without even the implied warranty of
9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 // GNU General Public License for more details.
11
12 #include "android/base/StringParse.h"
13
14 #include "android/base/threads/FunctorThread.h"
15 #include "android/base/testing/Utils.h"
16 #include <gtest/gtest.h>
17
18 namespace android {
19 namespace base {
20
testScanf()21 static void testScanf() {
22 static const char comma[] = "1,3";
23 static const char dot[] = "1.3";
24 static const char format[] = "%f%n";
25 float val = 0;
26 int n = 0;
27
28 // Now make sure we parse floating point strings as expected.
29 EXPECT_EQ(1, sscanf(dot, format, &val, &n));
30 EXPECT_FLOAT_EQ(1, val);
31 EXPECT_EQ(1, n);
32 EXPECT_EQ(1, sscanf(comma, format, &val, &n));
33 EXPECT_FLOAT_EQ(1.3, val);
34 EXPECT_EQ(3, n);
35
36 // C-Locale parsing should be able to parse strings with C locale
37 EXPECT_EQ(1, SscanfWithCLocale(dot, format, &val, &n));
38 EXPECT_FLOAT_EQ(1.3, val);
39 EXPECT_EQ(3, n);
40
41 // And the regular parsing still works as it used to.
42 EXPECT_EQ(1, sscanf(dot, format, &val, &n));
43 EXPECT_FLOAT_EQ(1, val);
44 EXPECT_EQ(1, n);
45 EXPECT_EQ(1, sscanf(comma, format, &val, &n));
46 EXPECT_FLOAT_EQ(1.3, val);
47 EXPECT_EQ(3, n);
48 }
49
50 // These are flaky as they depend on the build env.
TEST(StringParse,DISABLED_SscanfWithCLocale)51 TEST(StringParse, DISABLED_SscanfWithCLocale) {
52 auto scopedCommaLocale = setScopedCommaLocale();
53 testScanf();
54 }
55
TEST(StringParse,DISABLED_SscanfWithCLocaleThreads)56 TEST(StringParse, DISABLED_SscanfWithCLocaleThreads) {
57 auto scopedCommaLocale = setScopedCommaLocale();
58
59 std::vector<std::unique_ptr<FunctorThread>> threads;
60 for (int i = 0; i < 20; ++i) {
61 threads.emplace_back(new FunctorThread(&testScanf));
62 }
63 for (auto& t : threads) {
64 ASSERT_TRUE(t->start());
65 }
66 for (auto& t : threads) {
67 ASSERT_TRUE(t->wait());
68 }
69 }
70
71 } // namespace base
72 } // namespace android
73