add unit test for check_record_delimiter using OpenAI's GPT-3

Author: BohuTANG

src/query/formats/src/lib.rs

@@ -28,5 +28,6 @@ pub use field_decoder::*;
 pub use file_format_type::parse_timezone;
 pub use file_format_type::FileFormatOptionsExt;
 pub use file_format_type::FileFormatTypeExt;
+pub use format_option_checker::check_record_delimiter;
 
 use crate::common_settings::CommonSettings;

src/query/formats/tests/it/format_option_checker.rs

@@ -0,0 +1,37 @@
+// Copyright 2022 Datafuse Labs.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use common_formats::check_record_delimiter;
+
+/// This test code is written by OpenAI's GPT-3.
+#[test]
+fn test_check_record_delimiter() {
+    let mut option = "".to_string();
+    assert!(check_record_delimiter(&mut option).is_ok());
+    assert_eq!(option, "\n");
+
+    let mut option = "|".to_string();
+    assert!(check_record_delimiter(&mut option).is_ok());
+    assert_eq!(option, "|");
+
+    let mut option = "\r\n".to_string();
+    assert!(check_record_delimiter(&mut option).is_ok());
+    assert_eq!(option, "\r\n");
+
+    let mut option = "foo".to_string();
+    assert!(check_record_delimiter(&mut option).is_err());
+
+    let mut option = "|\r".to_string();
+    assert!(check_record_delimiter(&mut option).is_err());
+}

src/query/formats/tests/it/main.rs

@@ -21,6 +21,7 @@ use common_meta_types::StageFileFormatType;
 use common_settings::Settings;
 
 mod field_encoder;
+mod format_option_checker;
 mod output_format_json_each_row;
 mod output_format_tcsv;
 mod output_format_utils;