Add tests for directive collections.

unittests/main.cpp

@@ -1,22 +1,42 @@
-#include <gtest/gtest.h>
+#include "Test.h"
 #include <llvm/Support/CommandLine.h>
 
 namespace clice {
 
-llvm::cl::opt<std::string> test_dir_path("test-dir",
-                                         llvm::cl::desc("specify the test source directory path"),
-                                         llvm::cl::value_desc("path"),
-                                         llvm::cl::Required);
+namespace cl {
 
-std::string test_dir() {
-    return test_dir_path;
+llvm::cl::opt<std::string> test_dir("test-dir",
+                                    llvm::cl::desc("specify the test source directory path"),
+                                    llvm::cl::value_desc("path"),
+                                    llvm::cl::Required);
+
+llvm::SmallString<128> resource_dir;
+
+}  // namespace cl
+
+namespace test {
+
+llvm::StringRef source_dir() {
+    return cl::test_dir.getValue();
 }
 
+llvm::StringRef resource_dir() {
+    return cl::resource_dir.c_str();
+}
+
+}  // namespace test
+
 }  // namespace clice
 
 int main(int argc, char** argv) {
     testing::InitGoogleTest(&argc, argv);
     llvm::cl::ParseCommandLineOptions(argc, argv, "clice test\n");
+
+    if(auto error = clice::fs::real_path(llvm::Twine(argv[0]) + "/../../lib/clang/20)",
+                                         clice::cl::resource_dir)) {
+        llvm::errs() << "Failed to get resource directory, because " << error.message() << '\n';
+    }
+
     return RUN_ALL_TESTS();
 }