1 /*
2  * Copyright (C) 2016 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include <fcntl.h>
18 #include <stdio.h>
19 #include <stdlib.h>
20 #include <limits>
21 #include <cstddef>
22 
23 #include "android-base/file.h"
24 #include "android-base/test_utils.h"
25 #include <gtest/gtest.h>
26 
27 #include <binder/Parcel.h>
28 #include <binder/TextOutput.h>
29 
CheckMessage(CapturedStderr & cap,const char * expected,bool singleline)30 static void CheckMessage(CapturedStderr& cap,
31                          const char* expected,
32                          bool singleline) {
33     cap.Stop();
34     std::string output = cap.str();
35     if (singleline)
36         output.erase(std::remove(output.begin(), output.end(), '\n'));
37     ASSERT_EQ(output, expected);
38 }
39 
40 #define CHECK_LOG_(input, expect, singleline)    \
41 {                                                \
42     CapturedStderr cap;                          \
43     android::aerr << input << android::endl;     \
44     CheckMessage(cap, expect, singleline);       \
45 }                                                \
46 
47 #define CHECK_VAL_(val, singleline)              \
48 {                                                \
49     std::stringstream ss;                        \
50     ss << val;                                   \
51     std::string s = ss.str();                    \
52     CHECK_LOG_(val, s.c_str(), singleline);      \
53 }                                                \
54 
55 #define CHECK_LOG(input, expect) CHECK_LOG_(input, expect, true)
56 #define CHECK_VAL(val) CHECK_VAL_(val, true)
57 
TEST(TextOutput,HandlesStdEndl)58 TEST(TextOutput, HandlesStdEndl) {
59     CapturedStderr cap;
60     android::aerr << "foobar" << std::endl;
61     cap.Stop();
62     ASSERT_EQ(cap.str(), "foobar\n");
63 }
64 
TEST(TextOutput,HandlesCEndl)65 TEST(TextOutput, HandlesCEndl) {
66     CapturedStderr cap;
67     android::aerr << "foobar" << "\n";
68     cap.Stop();
69     ASSERT_EQ(cap.str(), "foobar\n");
70 }
71 
TEST(TextOutput,HandlesAndroidEndl)72 TEST(TextOutput, HandlesAndroidEndl) {
73     CapturedStderr cap;
74     android::aerr << "foobar" << android::endl;
75     cap.Stop();
76     ASSERT_EQ(cap.str(), "foobar\n");
77 }
78 
TEST(TextOutput,HandleEmptyString)79 TEST(TextOutput, HandleEmptyString) {
80     CHECK_LOG("", "");
81 }
82 
TEST(TextOutput,HandleString)83 TEST(TextOutput, HandleString) {
84     CHECK_LOG("foobar", "foobar");
85 }
86 
TEST(TextOutput,HandleNum)87 TEST(TextOutput, HandleNum) {
88     CHECK_LOG(12345, "12345");
89 }
90 
TEST(TextOutput,HandleBool)91 TEST(TextOutput, HandleBool) {
92     CHECK_LOG(false, "false");
93 }
94 
TEST(TextOutput,HandleChar)95 TEST(TextOutput, HandleChar) {
96     CHECK_LOG('T', "T");
97 }
98 
TEST(TextOutput,HandleParcel)99 TEST(TextOutput, HandleParcel) {
100     android::Parcel val;
101     CHECK_LOG(val, "Parcel(NULL)");
102 }
103 
TEST(TextOutput,HandleHexDump)104 TEST(TextOutput, HandleHexDump) {
105     const char buf[16] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
106     android::HexDump val(buf, sizeof(buf));
107     CHECK_LOG(val, "03020100 07060504 0b0a0908 0f0e0d0c '................'");
108 }
109 
TEST(TextOutput,HandleHexDumpCustom)110 TEST(TextOutput, HandleHexDumpCustom) {
111     const char buf[4] = {0x11,0x22,0x33,0x44};
112     android::HexDump val(buf, sizeof(buf), 4);
113     CHECK_LOG(val, "11 22 33 44 '.\"3D'");
114 }
115 
TEST(TextOutput,HandleTypeCode)116 TEST(TextOutput, HandleTypeCode) {
117     android::TypeCode val(1234);
118     CHECK_LOG(val, "'\\x04\\xd2'");
119 }
120 
TEST(TextOutput,HandleCookie)121 TEST(TextOutput, HandleCookie) {
122     int32_t val = 321; //0x141
123     CHECK_LOG((void*)(long)val, "0x141");
124 }
125 
TEST(TextOutput,HandleString8)126 TEST(TextOutput, HandleString8) {
127     android::String8 val("foobar");
128     CHECK_LOG(val, "foobar");
129 }
130 
TEST(TextOutput,HandleString16)131 TEST(TextOutput, HandleString16) {
132     android::String16 val("foobar");
133     CHECK_LOG(val, "foobar");
134 }
135 
136 template <typename T>
137 class TextTest : public testing::Test {};
138 
139 typedef testing::Types<short, unsigned short,
140                        int, unsigned int,
141                        long, unsigned long,
142                        long long, unsigned long long,
143                        float, double, long double> TestTypes;
144 TYPED_TEST_CASE(TextTest, TestTypes);
145 
TYPED_TEST(TextTest,TextMax)146 TYPED_TEST(TextTest, TextMax)
147 {
148     TypeParam max = std::numeric_limits<TypeParam>::max();
149     CHECK_VAL(max);
150 }
151 
TYPED_TEST(TextTest,TestMin)152 TYPED_TEST(TextTest, TestMin)
153 {
154     TypeParam min = std::numeric_limits<TypeParam>::min();
155     CHECK_VAL(min);
156 }
157 
TYPED_TEST(TextTest,TestDenom)158 TYPED_TEST(TextTest, TestDenom)
159 {
160     TypeParam min = std::numeric_limits<TypeParam>::denorm_min();
161     CHECK_VAL(min);
162 }
163 
TYPED_TEST(TextTest,TestEpsilon)164 TYPED_TEST(TextTest, TestEpsilon)
165 {
166     TypeParam eps = std::numeric_limits<TypeParam>::epsilon();
167     CHECK_VAL(eps);
168 }
169