Allows retrieving all files in a CompilationDatabase.

Patch by Tobias Koenig, some test changes by myself.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160167 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 38 insertions, 0 deletions

diff --git a/unittests/Tooling/CompilationDatabaseTest.cpp b/unittests/Tooling/CompilationDatabaseTest.cpp
index 7753c15410..591d48dbbd 100644
--- a/unittests/Tooling/CompilationDatabaseTest.cpp
+++ b/unittests/Tooling/CompilationDatabaseTest.cpp
@@ -38,6 +38,35 @@ TEST(JSONCompilationDatabase, ErrsOnInvalidFormat) {
   expectFailure("[{\"command\":\"\",\"file\":\"\"}]", "Missing directory");
 }
 
+static std::vector<std::string> getAllFiles(StringRef JSONDatabase,
+                                            std::string &ErrorMessage) {
+  llvm::OwningPtr<CompilationDatabase> Database(
+      JSONCompilationDatabase::loadFromBuffer(JSONDatabase, ErrorMessage));
+  if (!Database) {
+    ADD_FAILURE() << ErrorMessage;
+    return std::vector<std::string>();
+  }
+  return Database->getAllFiles();
+}
+
+TEST(JSONCompilationDatabase, GetAllFiles) {
+  std::string ErrorMessage;
+  EXPECT_EQ(std::vector<std::string>(),
+            getAllFiles("[]", ErrorMessage)) << ErrorMessage;
+
+  std::vector<std::string> expected_files;
+  expected_files.push_back("file1");
+  expected_files.push_back("file2");
+  EXPECT_EQ(expected_files, getAllFiles(
+    "[{\"directory\":\"dir\","
+      "\"command\":\"command\","
+      "\"file\":\"file1\"},"
+    " {\"directory\":\"dir\","
+      "\"command\":\"command\","
+      "\"file\":\"file2\"}]",
+    ErrorMessage)) << ErrorMessage;
+}
+
 static CompileCommand findCompileArgsInJsonDatabase(StringRef FileName,
                                                     StringRef JSONDatabase,
                                                     std::string &ErrorMessage) {
@@ -255,6 +284,15 @@ TEST(FixedCompilationDatabase, ReturnsFixedCommandLine) {
   EXPECT_EQ(ExpectedCommandLine, Result[0].CommandLine);
 }
 
+TEST(FixedCompilationDatabase, GetAllFiles) {
+  std::vector<std::string> CommandLine;
+  CommandLine.push_back("one");
+  CommandLine.push_back("two");
+  FixedCompilationDatabase Database(".", CommandLine);
+
+  EXPECT_EQ(0ul, Database.getAllFiles().size());
+}
+
 TEST(ParseFixedCompilationDatabase, ReturnsNullOnEmptyArgumentList) {
   int Argc = 0;
   llvm::OwningPtr<FixedCompilationDatabase> Database(