1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // UNSUPPORTED: c++98, c++03
10 
11 // <filesystem>
12 
13 // class path
14 
15 // path& replace_extension(path const& p = path())
16 
17 #include "filesystem_include.h"
18 #include <type_traits>
19 #include <cassert>
20 
21 #include "test_macros.h"
22 #include "test_iterators.h"
23 #include "count_new.h"
24 #include "filesystem_test_helper.h"
25 
26 
27 struct ReplaceExtensionTestcase {
28   const char* value;
29   const char* expect;
30   const char* extension;
31 };
32 
33 const ReplaceExtensionTestcase TestCases[] =
34   {
35       {"", "", ""}
36     , {"foo.cpp", "foo", ""}
37     , {"foo.cpp", "foo.", "."}
38     , {"foo..cpp", "foo..txt", "txt"}
39     , {"", ".txt", "txt"}
40     , {"", ".txt", ".txt"}
41     , {"/foo", "/foo.txt", ".txt"}
42     , {"/foo", "/foo.txt", "txt"}
43     , {"/foo.cpp", "/foo.txt", ".txt"}
44     , {"/foo.cpp", "/foo.txt", "txt"}
45   };
46 const ReplaceExtensionTestcase NoArgCases[] =
47   {
48       {"", "", ""}
49     , {"foo", "foo", ""}
50     , {"foo.cpp", "foo", ""}
51     , {"foo..cpp", "foo.", ""}
52 };
53 
54 int main(int, char**)
55 {
56   using namespace fs;
57   for (auto const & TC : TestCases) {
58     path p(TC.value);
59     assert(p == TC.value);
60     path& Ref = (p.replace_extension(TC.extension));
61     assert(p == TC.expect);
62     assert(&Ref == &p);
63   }
64   for (auto const& TC : NoArgCases) {
65     path p(TC.value);
66     assert(p == TC.value);
67     path& Ref = (p.replace_extension());
68     assert(p == TC.expect);
69     assert(&Ref == &p);
70   }
71 
72   return 0;
73 }
74