fuse unit tests and fixes

repertory/librepertory/src/drives/fuse/fuse_drive.cpp

@@ -181,9 +181,14 @@ auto fuse_drive::create_impl(std::string api_path, mode_t mode,
       return api_error::item_exists;
     }
   } else {
+    if (is_directory_op ? file_exists : dir_exists) {
+      return is_directory_op ? api_error::item_exists
+                             : api_error::directory_exists;
+    }
+
     if (not(is_directory_op ? dir_exists : file_exists)) {
-      return (is_directory_op ? api_error::directory_not_found
-                              : api_error::item_not_found);
+      return is_directory_op ? api_error::directory_not_found
+                             : api_error::item_not_found;
     }
 
     if ((is_exclusive || is_truncate_op) && not file_exists) {
@@ -674,6 +679,7 @@ void fuse_drive::notify_fuse_main_exit(int &ret) {
 
 auto fuse_drive::open_impl(std::string api_path,
                            struct fuse_file_info *file_info) -> api_error {
+
   file_info->flags &= (~O_CREAT);
   return create_impl(api_path, 0, file_info);
 }
@@ -700,6 +706,14 @@ auto fuse_drive::opendir_impl(std::string api_path,
     return api_error::directory_not_found;
   }
 
+  if ((file_info->flags & O_APPEND) == O_APPEND) {
+    return api_error::directory_exists;
+  }
+
+  if ((file_info->flags & O_EXCL) == O_EXCL) {
+    return api_error::directory_exists;
+  }
+
   directory_item_list list{};
   res = provider_.get_directory_items(api_path, list);
   if (res != api_error::success) {

repertory/repertory_test/src/fuse_drive_create_and_open_test.cpp

@@ -470,6 +470,25 @@ TYPED_TEST(fuse_test, create_fails_if_invalid) {
     EXPECT_EQ(EINVAL, errno);
   }
 }
+
+TYPED_TEST(fuse_test, create_open_fails_if_path_is_directory) {
+  std::array<int, 9U> ops{
+      O_APPEND,        O_EXCL | O_WRONLY,   O_RDWR | O_APPEND,
+      O_RDWR | O_EXCL, O_RDWR | O_TRUNC,    O_RDWR,
+      O_TRUNC,         O_WRONLY | O_APPEND, O_WRONLY,
+  };
+
+  std::string dir_name{"create_test"};
+  auto dir_path = this->create_directory_and_test(dir_name);
+
+  for (auto &&flags : ops) {
+    auto handle = open(dir_path.c_str(), flags);
+    EXPECT_EQ(-1, handle);
+    EXPECT_EQ(EISDIR, errno);
+  }
+
+  this->rmdir_and_test(dir_path);
+}
 } // namespace repertory
 
 #endif // !defined(_WIN32)