97 lines · cpp
1//===- unittests/Frontend/CompilerInstanceTest.cpp - CI tests -------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "flang/Frontend/CompilerInstance.h"10#include "flang/Frontend/TextDiagnosticPrinter.h"11#include "clang/Basic/DiagnosticOptions.h"12#include "llvm/Support/FileSystem.h"13 14#include "gtest/gtest.h"15 16using namespace llvm;17using namespace Fortran::frontend;18 19namespace {20 21TEST(CompilerInstance, SanityCheckForFileManager) {22 const char *inputSource = "InputSourceFile";23 std::string inputFile = "buffer-file-test.f";24 std::error_code ec;25 26 // 1. Create the input file for the file manager27 // AllSources (which is used to manage files inside every compiler instance),28 // works with paths. This means that it requires a physical file. Create one.29 std::unique_ptr<llvm::raw_fd_ostream> os{30 new llvm::raw_fd_ostream(inputFile, ec, llvm::sys::fs::OF_None)};31 if (ec)32 FAIL() << "Failed to create the input file";33 34 // Populate the input file with the pre-defined input and flush it.35 *(os) << inputSource;36 os.reset();37 38 // Get the path of the input file39 llvm::SmallString<64> cwd;40 if (std::error_code ec = llvm::sys::fs::current_path(cwd))41 FAIL() << "Failed to obtain the current working directory";42 std::string testFilePath(cwd.c_str());43 testFilePath += "/" + inputFile;44 45 // 2. Set up CompilerInstance (i.e. specify the input file)46 std::string buf;47 llvm::raw_string_ostream errorStream{buf};48 CompilerInstance compInst;49 const Fortran::parser::SourceFile *sf =50 compInst.getAllSources().Open(testFilePath, errorStream);51 52 // 3. Verify the content of the input file53 // This is just a sanity check to make sure that CompilerInstance is capable54 // of reading input files.55 llvm::ArrayRef<char> fileContent = sf->content();56 EXPECT_FALSE(fileContent.size() == 0);57 EXPECT_TRUE(58 llvm::StringRef(fileContent.data()).starts_with("InputSourceFile"));59 60 // 4. Delete the test file61 ec = llvm::sys::fs::remove(inputFile);62 if (ec)63 FAIL() << "Failed to delete the test file";64}65 66TEST(CompilerInstance, AllowDiagnosticLogWithUnownedDiagnosticConsumer) {67 // 1. Set-up a basic DiagnosticConsumer68 std::string diagnosticOutput;69 llvm::raw_string_ostream diagnosticsOS(diagnosticOutput);70 clang::DiagnosticOptions diagPrinterOpts;71 auto diagPrinter = std::make_unique<Fortran::frontend::TextDiagnosticPrinter>(72 diagnosticsOS, diagPrinterOpts);73 74 // 2. Create a CompilerInstance (to manage a DiagnosticEngine)75 CompilerInstance compInst;76 77 // 3. Set-up DiagnosticOptions78 clang::DiagnosticOptions diagOpts;79 // Tell the diagnostics engine to emit the diagnostic log to STDERR. This80 // ensures that a chained diagnostic consumer is created so that the test can81 // exercise the unowned diagnostic consumer in a chained consumer.82 diagOpts.DiagnosticLogFile = "-";83 84 // 4. Create a DiagnosticEngine with an unowned consumer85 IntrusiveRefCntPtr<clang::DiagnosticsEngine> diags =86 compInst.createDiagnostics(diagOpts, diagPrinter.get(),87 /*ShouldOwnClient=*/false);88 89 // 5. Report a diagnostic90 diags->Report(clang::diag::err_expected) << "no crash";91 92 // 6. Verify that the reported diagnostic wasn't lost and did end up in the93 // output stream94 ASSERT_EQ(diagnosticOutput, "error: expected no crash\n");95}96} // namespace97