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 "sysdeps/errno.h"
18 
19 #include <string>
20 
21 #include <gtest/gtest.h>
22 
23 void TestAdbStrError(int err, const char* expected) {
24     errno = 12345;
25     const char* result = adb_strerror(err);
26     // Check that errno is not overwritten.
27     EXPECT_EQ(12345, errno);
28     EXPECT_STREQ(expected, result);
29 }
30 
31 TEST(sysdeps_win32, adb_strerror) {
32     // Test an error code that should not have a mapped string. Use an error
33     // code that is not used by the internal implementation of adb_strerror().
34     TestAdbStrError(-2, "Unknown error");
35     // adb_strerror() uses -1 internally, so test that it can still be passed
36     // as a parameter.
37     TestAdbStrError(-1, "Unknown error");
38     // Test very big, positive unknown error.
39     TestAdbStrError(1000000, "Unknown error");
40 
41     // Test success case.
42     // Wine returns "Success" for strerror(0), Windows returns "No error", so accept both.
43     std::string success = adb_strerror(0);
44     EXPECT_TRUE(success == "Success" || success == "No error") << "strerror(0) = " << success;
45 
46     // Test error that regular strerror() should have a string for.
47     TestAdbStrError(EPERM, "Operation not permitted");
48     // Test error that regular strerror() doesn't have a string for, but that
49     // adb_strerror() returns.
50     TestAdbStrError(ECONNRESET, "Connection reset by peer");
51 }
52