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Occasionally it is useful to have unittest which take inputs. While we normally try to have this test be more of a lit test we occasionally don't have tools that can exercise the code in the right way to test certain things. LLDB has been using this style of unit test for a while, particularly with regards to how it tests core dump and minidump file parsing. Recently i needed this as well for the case where we want to test that some of the PDB reading code works correctly. It needs to exercise the code in a way that is not covered by any dumper and would be impractical to implement in one of the dumpers, but requires a valid PDB file. Since this is now needed by more than one project, it makes sense to have this be a generally supported thing that unit tests can do, and we just encourage people to use this sparingly. Differential Revision: https://reviews.llvm.org/D51561 llvm-svn: 341502
37 lines
1.0 KiB
C++
37 lines
1.0 KiB
C++
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#include "llvm/Testing/Support/SupportHelpers.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/Path.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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using namespace llvm::unittest;
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extern const char *TestMainArgv0;
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SmallString<128> llvm::unittest::getInputFileDirectory() {
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llvm::SmallString<128> Result = llvm::sys::path::parent_path(TestMainArgv0);
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llvm::sys::fs::make_absolute(Result);
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llvm::sys::path::append(Result, "llvm.srcdir.txt");
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EXPECT_TRUE(llvm::sys::fs::is_directory(Result))
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<< "Unit test source directory file does not exist.";
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auto File = MemoryBuffer::getFile(Result);
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EXPECT_TRUE(static_cast<bool>(File))
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<< "Could not open unit test source directory file.";
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Result.clear();
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Result.append((*File)->getBuffer().trim());
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llvm::sys::path::append(Result, "Inputs");
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llvm::sys::path::native(Result);
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return std::move(Result);
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}
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