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// MIT License
//
// Copyright (c) 2025 Takatoshi Kondo
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
use mqtt_protocol_core::mqtt;
mod common;
#[test]
fn test_escape_ascii() {
common::init_tracing();
assert_eq!(
mqtt::packet::escape_binary_json_string(b"abc").unwrap(),
"abc"
);
}
#[test]
fn test_escape_specials() {
common::init_tracing();
// Valid UTF-8 special characters are preserved as-is (not pre-escaped)
assert_eq!(
mqtt::packet::escape_binary_json_string(b"\n\r\t\"\\").unwrap(),
"\n\r\t\"\\"
);
}
#[test]
fn test_escape_non_ascii() {
common::init_tracing();
// Use bytes that definitely cannot form valid UTF-8 (continuation bytes without start)
let result = mqtt::packet::escape_binary_json_string(b"\x80\x81\x82\x83");
assert_eq!(result, None);
}
#[test]
fn test_escape_valid_utf8() {
common::init_tracing();
// Valid UTF-8 string should be preserved as-is
assert_eq!(
mqtt::packet::escape_binary_json_string("Hello world".as_bytes()).unwrap(),
"Hello world"
);
// Valid UTF-8 with Japanese characters
assert_eq!(
mqtt::packet::escape_binary_json_string("こんにちは".as_bytes()).unwrap(),
"こんにちは"
);
}