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 #include <binder/Debug.h>
30 
CheckMessage(CapturedStderr & cap,const char * expected,bool singleline)31 static void CheckMessage(CapturedStderr& cap,
32                          const char* expected,
33                          bool singleline) {
34     cap.Stop();
35     std::string output = cap.str();
36     if (singleline)
37         output.erase(std::remove(output.begin(), output.end(), '\n'));
38     ASSERT_EQ(output, expected);
39 }
40 
41 #define CHECK_LOG_(input, expect, singleline)    \
42 {                                                \
43     CapturedStderr cap;                          \
44     android::aerr << input << android::endl;     \
45     CheckMessage(cap, expect, singleline);       \
46 }                                                \
47 
48 #define CHECK_VAL_(val, singleline)              \
49 {                                                \
50     std::stringstream ss;                        \
51     ss << val;                                   \
52     std::string s = ss.str();                    \
53     CHECK_LOG_(val, s.c_str(), singleline);      \
54 }                                                \
55 
56 #define CHECK_LOG(input, expect) CHECK_LOG_(input, expect, true)
57 #define CHECK_VAL(val) CHECK_VAL_(val, true)
58 
TEST(TextOutput,HandlesStdEndl)59 TEST(TextOutput, HandlesStdEndl) {
60     CapturedStderr cap;
61     android::aerr << "foobar" << std::endl;
62     cap.Stop();
63     ASSERT_EQ(cap.str(), "foobar\n");
64 }
65 
TEST(TextOutput,HandlesCEndl)66 TEST(TextOutput, HandlesCEndl) {
67     CapturedStderr cap;
68     android::aerr << "foobar" << "\n";
69     cap.Stop();
70     ASSERT_EQ(cap.str(), "foobar\n");
71 }
72 
TEST(TextOutput,HandlesAndroidEndl)73 TEST(TextOutput, HandlesAndroidEndl) {
74     CapturedStderr cap;
75     android::aerr << "foobar" << android::endl;
76     cap.Stop();
77     ASSERT_EQ(cap.str(), "foobar\n");
78 }
79 
TEST(TextOutput,HandleEmptyString)80 TEST(TextOutput, HandleEmptyString) {
81     CHECK_LOG("", "");
82 }
83 
TEST(TextOutput,HandleString)84 TEST(TextOutput, HandleString) {
85     CHECK_LOG("foobar", "foobar");
86 }
87 
TEST(TextOutput,HandleNum)88 TEST(TextOutput, HandleNum) {
89     CHECK_LOG(12345, "12345");
90 }
91 
TEST(TextOutput,HandleBool)92 TEST(TextOutput, HandleBool) {
93     CHECK_LOG(false, "false");
94 }
95 
TEST(TextOutput,HandleChar)96 TEST(TextOutput, HandleChar) {
97     CHECK_LOG('T', "T");
98 }
99 
TEST(TextOutput,HandleParcel)100 TEST(TextOutput, HandleParcel) {
101     android::Parcel val;
102     CHECK_LOG(val, "Parcel(NULL)");
103 }
104 
TEST(TextOutput,HandleHexDump)105 TEST(TextOutput, HandleHexDump) {
106     const char buf[16] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
107     android::HexDump val(buf, sizeof(buf));
108     CHECK_LOG(val, "03020100 07060504 0b0a0908 0f0e0d0c '................'");
109 }
110 
TEST(TextOutput,HandleHexDumpCustom)111 TEST(TextOutput, HandleHexDumpCustom) {
112     const char buf[4] = {0x11,0x22,0x33,0x44};
113     android::HexDump val(buf, sizeof(buf), 4);
114     CHECK_LOG(val, "11 22 33 44 '.\"3D'");
115 }
116 
TEST(TextOutput,HandleTypeCode)117 TEST(TextOutput, HandleTypeCode) {
118     android::TypeCode val(1234);
119     CHECK_LOG(val, "'\\x04\\xd2'");
120 }
121 
TEST(TextOutput,HandleCookie)122 TEST(TextOutput, HandleCookie) {
123     int32_t val = 321; //0x141
124     CHECK_LOG((void*)(long)val, "0x141");
125 }
126 
TEST(TextOutput,HandleString8)127 TEST(TextOutput, HandleString8) {
128     android::String8 val("foobar");
129     CHECK_LOG(val, "foobar");
130 }
131 
TEST(TextOutput,HandleString16)132 TEST(TextOutput, HandleString16) {
133     android::String16 val("foobar");
134     CHECK_LOG(val, "foobar");
135 }
136 
137 template <typename T>
138 class TextTest : public testing::Test {};
139 
140 typedef testing::Types<short, unsigned short,
141                        int, unsigned int,
142                        long, unsigned long,
143                        long long, unsigned long long,
144                        float, double, long double> TestTypes;
145 TYPED_TEST_CASE(TextTest, TestTypes);
146 
TYPED_TEST(TextTest,TextMax)147 TYPED_TEST(TextTest, TextMax)
148 {
149     TypeParam max = std::numeric_limits<TypeParam>::max();
150     CHECK_VAL(max);
151 }
152 
TYPED_TEST(TextTest,TestMin)153 TYPED_TEST(TextTest, TestMin)
154 {
155     TypeParam min = std::numeric_limits<TypeParam>::min();
156     CHECK_VAL(min);
157 }
158 
TYPED_TEST(TextTest,TestDenom)159 TYPED_TEST(TextTest, TestDenom)
160 {
161     TypeParam min = std::numeric_limits<TypeParam>::denorm_min();
162     CHECK_VAL(min);
163 }
164 
TYPED_TEST(TextTest,TestEpsilon)165 TYPED_TEST(TextTest, TestEpsilon)
166 {
167     TypeParam eps = std::numeric_limits<TypeParam>::epsilon();
168     CHECK_VAL(eps);
169 }
170