Add gTest unittests to clang, and write the first one.
This is the Makefile version only; the cmake implementation is coming soon.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124777 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/unittests/Frontend/FrontendActionTest.cpp b/unittests/Frontend/FrontendActionTest.cpp
new file mode 100644
index 0000000..49a6398
--- /dev/null
+++ b/unittests/Frontend/FrontendActionTest.cpp
@@ -0,0 +1,76 @@
+//===- unittests/Frontend/FrontendActionTest.cpp - FrontendAction tests ---===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/AST/RecursiveASTVisitor.h"
+#include "clang/AST/ASTConsumer.h"
+#include "clang/Frontend/CompilerInstance.h"
+#include "clang/Frontend/CompilerInvocation.h"
+#include "clang/Frontend/FrontendAction.h"
+
+#include "llvm/ADT/Triple.h"
+#include "llvm/LLVMContext.h"
+#include "llvm/Support/MemoryBuffer.h"
+
+#include "gtest/gtest.h"
+
+using namespace llvm;
+using namespace clang;
+
+namespace {
+
+class TestASTFrontendAction : public ASTFrontendAction {
+public:
+ std::vector<std::string> decl_names;
+
+ virtual ASTConsumer *CreateASTConsumer(CompilerInstance &CI,
+ StringRef InFile) {
+ return new Visitor(decl_names);
+ }
+
+private:
+ class Visitor : public ASTConsumer, public RecursiveASTVisitor<Visitor> {
+ public:
+ Visitor(std::vector<std::string> &decl_names) : decl_names_(decl_names) {}
+
+ virtual void HandleTranslationUnit(ASTContext &context) {
+ TraverseDecl(context.getTranslationUnitDecl());
+ }
+
+ virtual bool VisitNamedDecl(NamedDecl *Decl) {
+ decl_names_.push_back(Decl->getQualifiedNameAsString());
+ return true;
+ }
+
+ private:
+ std::vector<std::string> &decl_names_;
+ };
+};
+
+TEST(ASTFrontendAction, Sanity) {
+ CompilerInvocation *invocation = new CompilerInvocation;
+ invocation->getPreprocessorOpts().addRemappedFile(
+ "test.cc", MemoryBuffer::getMemBuffer("int main() { float x; }"));
+ invocation->getFrontendOpts().Inputs.push_back(
+ std::make_pair(IK_CXX, "test.cc"));
+ invocation->getFrontendOpts().ProgramAction = frontend::ParseSyntaxOnly;
+ invocation->getTargetOpts().Triple = "i386-unknown-linux-gnu";
+ CompilerInstance compiler;
+ compiler.setLLVMContext(new LLVMContext);
+ compiler.setInvocation(invocation);
+ compiler.createDiagnostics(0, NULL);
+
+ TestASTFrontendAction test_action;
+ ASSERT_TRUE(compiler.ExecuteAction(test_action));
+ ASSERT_EQ(3U, test_action.decl_names.size());
+ EXPECT_EQ("__builtin_va_list", test_action.decl_names[0]);
+ EXPECT_EQ("main", test_action.decl_names[1]);
+ EXPECT_EQ("x", test_action.decl_names[2]);
+}
+
+} // anonymous namespace