Vendor import of clang trunk r130700:

http://llvm.org/svn/llvm-project/cfe/trunk@130700

1 files changed, 175 insertions, 0 deletions

diff --git a/unittests/Tooling/ToolingTest.cpp b/unittests/Tooling/ToolingTest.cpp
new file mode 100644
index 0000000..6e5bc6b
--- /dev/null
+++ b/unittests/Tooling/ToolingTest.cpp
@@ -0,0 +1,175 @@
+//===- unittest/Tooling/ToolingTest.cpp - Tooling unit tests --------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/Twine.h"
+#include "clang/AST/ASTConsumer.h"
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclGroup.h"
+#include "clang/Frontend/FrontendAction.h"
+#include "clang/Tooling/Tooling.h"
+#include "gtest/gtest.h"
+
+namespace clang {
+namespace tooling {
+
+namespace {
+/// Takes an ast consumer and returns it from CreateASTConsumer. This only
+/// works with single translation unit compilations.
+class TestAction : public clang::ASTFrontendAction {
+ public:
+  /// Takes ownership of TestConsumer.
+  explicit TestAction(clang::ASTConsumer *TestConsumer)
+      : TestConsumer(TestConsumer) {}
+
+ protected:
+  virtual clang::ASTConsumer* CreateASTConsumer(
+      clang::CompilerInstance& compiler, llvm::StringRef dummy) {
+    /// TestConsumer will be deleted by the framework calling us.
+    return TestConsumer;
+  }
+
+ private:
+  clang::ASTConsumer * const TestConsumer;
+};
+
+class FindTopLevelDeclConsumer : public clang::ASTConsumer {
+ public:
+  explicit FindTopLevelDeclConsumer(bool *FoundTopLevelDecl)
+      : FoundTopLevelDecl(FoundTopLevelDecl) {}
+  virtual void HandleTopLevelDecl(clang::DeclGroupRef DeclGroup) {
+    *FoundTopLevelDecl = true;
+  }
+ private:
+  bool * const FoundTopLevelDecl;
+};
+} // end namespace
+
+TEST(RunSyntaxOnlyToolOnCode, FindsTopLevelDeclOnEmptyCode) {
+  bool FoundTopLevelDecl = false;
+  EXPECT_TRUE(RunSyntaxOnlyToolOnCode(
+      new TestAction(new FindTopLevelDeclConsumer(&FoundTopLevelDecl)), ""));
+  EXPECT_TRUE(FoundTopLevelDecl);
+}
+
+namespace {
+class FindClassDeclXConsumer : public clang::ASTConsumer {
+ public:
+  FindClassDeclXConsumer(bool *FoundClassDeclX)
+      : FoundClassDeclX(FoundClassDeclX) {}
+  virtual void HandleTopLevelDecl(clang::DeclGroupRef GroupRef) {
+    if (CXXRecordDecl* Record = llvm::dyn_cast<clang::CXXRecordDecl>(
+            *GroupRef.begin())) {
+      if (Record->getName() == "X") {
+        *FoundClassDeclX = true;
+      }
+    }
+  }
+ private:
+  bool *FoundClassDeclX;
+};
+} // end namespace
+
+TEST(RunSyntaxOnlyToolOnCode, FindsClassDecl) {
+  bool FoundClassDeclX = false;
+  EXPECT_TRUE(RunSyntaxOnlyToolOnCode(new TestAction(
+      new FindClassDeclXConsumer(&FoundClassDeclX)), "class X;"));
+  EXPECT_TRUE(FoundClassDeclX);
+
+  FoundClassDeclX = false;
+  EXPECT_TRUE(RunSyntaxOnlyToolOnCode(new TestAction(
+      new FindClassDeclXConsumer(&FoundClassDeclX)), "class Y;"));
+  EXPECT_FALSE(FoundClassDeclX);
+}
+
+TEST(FindCompileArgsInJsonDatabase, FindsNothingIfEmpty) {
+  std::string ErrorMessage;
+  CompileCommand NotFound = FindCompileArgsInJsonDatabase(
+      "a-file.cpp", "", ErrorMessage);
+  EXPECT_TRUE(NotFound.CommandLine.empty()) << ErrorMessage;
+  EXPECT_TRUE(NotFound.Directory.empty()) << ErrorMessage;
+}
+
+TEST(FindCompileArgsInJsonDatabase, ReadsSingleEntry) {
+  llvm::StringRef Directory("/some/directory");
+  llvm::StringRef FileName("/path/to/a-file.cpp");
+  llvm::StringRef Command("/path/to/compiler and some arguments");
+  std::string ErrorMessage;
+  CompileCommand FoundCommand = FindCompileArgsInJsonDatabase(
+      FileName,
+      (llvm::Twine("[{\"directory\":\"") + Directory + "\"," +
+                     "\"command\":\"" + Command + "\","
+                     "\"file\":\"" + FileName + "\"}]").str(), ErrorMessage);
+  EXPECT_EQ(Directory, FoundCommand.Directory) << ErrorMessage;
+  ASSERT_EQ(4u, FoundCommand.CommandLine.size()) << ErrorMessage;
+  EXPECT_EQ("/path/to/compiler", FoundCommand.CommandLine[0]) << ErrorMessage;
+  EXPECT_EQ("and", FoundCommand.CommandLine[1]) << ErrorMessage;
+  EXPECT_EQ("some", FoundCommand.CommandLine[2]) << ErrorMessage;
+  EXPECT_EQ("arguments", FoundCommand.CommandLine[3]) << ErrorMessage;
+
+  CompileCommand NotFound = FindCompileArgsInJsonDatabase(
+      "a-file.cpp",
+      (llvm::Twine("[{\"directory\":\"") + Directory + "\"," +
+                     "\"command\":\"" + Command + "\","
+                     "\"file\":\"" + FileName + "\"}]").str(), ErrorMessage);
+  EXPECT_TRUE(NotFound.Directory.empty()) << ErrorMessage;
+  EXPECT_TRUE(NotFound.CommandLine.empty()) << ErrorMessage;
+}
+
+TEST(FindCompileArgsInJsonDatabase, ReadsCompileCommandLinesWithSpaces) {
+  llvm::StringRef Directory("/some/directory");
+  llvm::StringRef FileName("/path/to/a-file.cpp");
+  llvm::StringRef Command("\\\"/path to compiler\\\" \\\"and an argument\\\"");
+  std::string ErrorMessage;
+  CompileCommand FoundCommand = FindCompileArgsInJsonDatabase(
+      FileName,
+      (llvm::Twine("[{\"directory\":\"") + Directory + "\"," +
+                     "\"command\":\"" + Command + "\","
+                     "\"file\":\"" + FileName + "\"}]").str(), ErrorMessage);
+  ASSERT_EQ(2u, FoundCommand.CommandLine.size());
+  EXPECT_EQ("/path to compiler", FoundCommand.CommandLine[0]) << ErrorMessage;
+  EXPECT_EQ("and an argument", FoundCommand.CommandLine[1]) << ErrorMessage;
+}
+
+TEST(FindCompileArgsInJsonDatabase, ReadsDirectoryWithSpaces) {
+  llvm::StringRef Directory("/some directory / with spaces");
+  llvm::StringRef FileName("/path/to/a-file.cpp");
+  llvm::StringRef Command("a command");
+  std::string ErrorMessage;
+  CompileCommand FoundCommand = FindCompileArgsInJsonDatabase(
+      FileName,
+      (llvm::Twine("[{\"directory\":\"") + Directory + "\"," +
+                     "\"command\":\"" + Command + "\","
+                     "\"file\":\"" + FileName + "\"}]").str(), ErrorMessage);
+  EXPECT_EQ(Directory, FoundCommand.Directory) << ErrorMessage;
+}
+
+TEST(FindCompileArgsInJsonDatabase, FindsEntry) {
+  llvm::StringRef Directory("directory");
+  llvm::StringRef FileName("file");
+  llvm::StringRef Command("command");
+  std::string JsonDatabase = "[";
+  for (int I = 0; I < 10; ++I) {
+    if (I > 0) JsonDatabase += ",";
+    JsonDatabase += (llvm::Twine(
+        "{\"directory\":\"") + Directory + llvm::Twine(I) + "\"," +
+         "\"command\":\"" + Command + llvm::Twine(I) + "\","
+         "\"file\":\"" + FileName + llvm::Twine(I) + "\"}").str();
+  }
+  JsonDatabase += "]";
+  std::string ErrorMessage;
+  CompileCommand FoundCommand = FindCompileArgsInJsonDatabase(
+      "file4", JsonDatabase, ErrorMessage);
+  EXPECT_EQ("directory4", FoundCommand.Directory) << ErrorMessage;
+  ASSERT_EQ(1u, FoundCommand.CommandLine.size()) << ErrorMessage;
+  EXPECT_EQ("command4", FoundCommand.CommandLine[0]) << ErrorMessage;
+}
+
+} // end namespace tooling
+} // end namespace clang
+