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Chandler Carruth
582b2c04dd
This also factors out the code for doing this location from the driver to a tiny helper library. The motivation for this is letting tests locate data files like the prelude or other files needed by the toolchain more easily. A subsequent PR will use this heavily in the Clang runner and related logic for example.
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include "common/exe_path.h"
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#include <gtest/gtest.h>
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#include "llvm/ADT/SmallString.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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namespace Carbon {
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namespace {
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TEST(ExePath, FailureFallback) {
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llvm::SmallString<128> path = llvm::StringRef(getenv("TEST_TMPDIR"));
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llvm::sys::path::append(path, "non_existant_binary");
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std::string exe_path = FindExecutablePath(path);
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EXPECT_EQ(path, exe_path);
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}
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TEST(ExePath, File) {
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llvm::SmallString<128> path = llvm::StringRef(getenv("TEST_TMPDIR"));
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llvm::sys::path::append(path, "test_binary");
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int fd = -1;
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std::error_code ec = llvm::sys::fs::openFileForWrite(path, fd);
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ASSERT_TRUE(!ec) << "Error code: " << ec;
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close(fd);
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std::string exe_path = FindExecutablePath(path);
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EXPECT_EQ(path, exe_path);
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}
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TEST(ExePath, PathLookup) {
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// TODO: This is not likely to work well on Windows (outside of WSL). But some
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// of that may be hidden by Bazel's test environment. Regardless, we should
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// revisit this when we have good coverage of Windows build with something
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// appropriate for that platform.
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std::string exe_path = FindExecutablePath("bash");
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EXPECT_NE(exe_path, "bash");
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EXPECT_TRUE(llvm::sys::fs::exists(exe_path));
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EXPECT_TRUE(llvm::sys::fs::can_execute(exe_path));
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}
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} // namespace
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} // namespace Carbon
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