1 //===-- TestRunner.cpp ----------------------------------------------------===//
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 #include "TestRunner.h"
10 
11 using namespace llvm;
12 
13 /// Gets Current Working Directory and tries to create a Tmp Directory
14 static SmallString<128> initializeTmpDirectory() {
15   SmallString<128> CWD;
16   if (std::error_code EC = sys::fs::current_path(CWD)) {
17     errs() << "Error getting current directory: " << EC.message() << "!\n";
18     exit(1);
19   }
20 
21   SmallString<128> TmpDirectory;
22   sys::path::append(TmpDirectory, CWD, "tmp");
23   if (std::error_code EC = sys::fs::create_directory(TmpDirectory))
24     errs() << "Error creating tmp directory: " << EC.message() << "!\n";
25 
26   return TmpDirectory;
27 }
28 
29 TestRunner::TestRunner(StringRef TestName, std::vector<std::string> TestArgs)
30     : TestName(TestName), TestArgs(std::move(TestArgs)) {
31   TmpDirectory = initializeTmpDirectory();
32 }
33 
34 /// Runs the interestingness test, passes file to be tested as first argument
35 /// and other specified test arguments after that.
36 int TestRunner::run(StringRef Filename) {
37   std::vector<StringRef> ProgramArgs;
38   ProgramArgs.push_back(TestName);
39   ProgramArgs.push_back(Filename);
40 
41   for (auto Arg : TestArgs)
42     ProgramArgs.push_back(Arg.c_str());
43 
44   Optional<StringRef> Redirects[3]; // STDIN, STDOUT, STDERR
45   std::string ErrMsg;
46   int Result =
47       sys::ExecuteAndWait(TestName, ProgramArgs, None, Redirects,
48                           /*SecondsToWait=*/0, /*MemoryLimit=*/0, &ErrMsg);
49 
50   if (Result < 0) {
51     Error E = make_error<StringError>("Error running interesting-ness test: " +
52                                           ErrMsg,
53                                       inconvertibleErrorCode());
54     errs() << toString(std::move(E));
55     exit(1);
56   }
57 
58   return !Result;
59 }
60