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|
use codecrafters_redis::resp_parser::*;
#[test]
fn test_valid_simple_strings() {
// Basic valid cases
assert_eq!(parse_simple_strings(b"+OK\r\n").unwrap().0, "OK");
assert_eq!(parse_simple_strings(b"+PONG\r\n").unwrap().0, "PONG");
assert_eq!(
parse_simple_strings(b"+Hello World\r\n").unwrap().0,
"Hello World"
);
// Empty string
assert_eq!(parse_simple_strings(b"+\r\n").unwrap().0, "");
// String with spaces and special characters (but no \r or \n)
assert_eq!(
parse_simple_strings(b"+Hello, World! 123\r\n").unwrap().0,
"Hello, World! 123"
);
// String with various ASCII characters
assert_eq!(
parse_simple_strings(b"+!@#$%^&*()_+-={}[]|\\:;\"'<>?,./ \r\n")
.unwrap()
.0,
"!@#$%^&*()_+-={}[]|\\:;\"'<>?,./ "
);
// Unicode characters (should work with UTF-8)
assert_eq!(
parse_simple_strings(b"+\xc3\xa9\xc3\xa1\xc3\xb1\r\n")
.unwrap()
.0,
"éáñ"
);
}
#[test]
fn test_invalid_prefix() {
// Missing '+' prefix
assert_eq!(
parse_simple_strings(b"OK\r\n").err().unwrap().message(),
"WRONGTYPE Operation against a key holding the wrong kind of value"
);
// Wrong prefix
assert_eq!(
parse_simple_strings(b"-Error\r\n").err().unwrap().message(),
"WRONGTYPE Operation against a key holding the wrong kind of value"
);
assert_eq!(
parse_simple_strings(b":123\r\n").err().unwrap().message(),
"WRONGTYPE Operation against a key holding the wrong kind of value"
);
assert_eq!(
parse_simple_strings(b"$5\r\nhello\r\n")
.err()
.unwrap()
.message(),
"WRONGTYPE Operation against a key holding the wrong kind of value"
);
}
#[test]
fn test_missing_crlf_terminator() {
// No CRLF at all
assert_eq!(
parse_simple_strings(b"+OK").err().unwrap().message(),
"ERR Unexpected end of input"
);
// Only \r
assert_eq!(
parse_simple_strings(b"+OK\r").err().unwrap().message(),
"ERR Unexpected end of input"
);
// Only \n
assert_eq!(
parse_simple_strings(b"+OK\n").err().unwrap().message(),
"ERR Unexpected end of input"
);
// Wrong order (\n\r instead of \r\n)
assert_eq!(
parse_simple_strings(b"+OK\n\r").err().unwrap().message(),
"ERR Unexpected end of input"
);
}
#[test]
fn test_invalid_characters_in_content() {
// Contains \r in content
assert_eq!(
parse_simple_strings(b"+Hello\rWorld\r\n")
.err()
.unwrap()
.message(),
"ERR invalid value"
);
// Contains \n in content
assert_eq!(
parse_simple_strings(b"+Hello\nWorld\r\n")
.err()
.unwrap()
.message(),
"ERR invalid value"
);
}
#[test]
fn test_empty_input() {
assert_eq!(
parse_simple_strings(b"").err().unwrap().message(),
"ERR Empty data"
);
}
#[test]
fn test_with_trailing_data() {
// RESP simple string with extra data after CRLF (should be ignored)
assert_eq!(parse_simple_strings(b"+OK\r\nextra_data").unwrap().0, "OK");
assert_eq!(
parse_simple_strings(b"+PONG\r\n+another_string\r\n")
.unwrap()
.0,
"PONG"
);
}
#[test]
fn test_real_world_redis_responses() {
// Common Redis simple string responses
assert_eq!(parse_simple_strings(b"+OK\r\n").unwrap().0, "OK");
assert_eq!(parse_simple_strings(b"+PONG\r\n").unwrap().0, "PONG");
assert_eq!(parse_simple_strings(b"+QUEUED\r\n").unwrap().0, "QUEUED");
// Redis status responses
assert_eq!(
parse_simple_strings(b"+Background saving started\r\n")
.unwrap()
.0,
"Background saving started"
);
assert_eq!(
parse_simple_strings(b"+Background saving successfully finished\r\n")
.unwrap()
.0,
"Background saving successfully finished"
);
}
#[test]
fn test_edge_cases() {
// Just the prefix and CRLF
assert_eq!(parse_simple_strings(b"+\r\n").unwrap().0, "");
// Long string
let long_string = "a".repeat(1000);
let mut input = b"+".to_vec();
input.extend_from_slice(long_string.as_bytes());
input.extend_from_slice(b"\r\n");
assert_eq!(parse_simple_strings(&input).unwrap().0, long_string);
// String with only spaces
assert_eq!(parse_simple_strings(b"+ \r\n").unwrap().0, " ");
// String with tabs and other whitespace
assert_eq!(parse_simple_strings(b"+\t \t\r\n").unwrap().0, "\t \t");
}
#[test]
fn test_binary_safety_within_limits() {
// Non-UTF8 bytes (but no \r or \n)
let mut input = b"+".to_vec();
input.extend_from_slice(&[0xFF, 0xFE, 0xFD]); // Invalid UTF-8
input.extend_from_slice(b"\r\n");
// Should handle invalid UTF-8 gracefully with replacement characters
if let RespType::SimpleString(data) = parse_simple_strings(&input).unwrap().0 {
assert!(!data.is_empty()); // Should contain replacement characters
}
}
|
