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add test_encode_decimal, test_decode_decimal

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xiaopengli89 2020-04-06 18:09:45 +08:00 committed by Ryan Leckey
parent b354ed430d
commit 401ffd19e6
1 changed files with 39 additions and 0 deletions
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39
sqlx-core/src/mysql/types/bigdecimal.rs
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@ -139,3 +139,42 @@ impl Decode<'_, MySql> for BigDecimal {
}
}
}
#[test]
fn test_encode_decimal() {
let v = BigDecimal::new(BigInt::from(-105), 2);
let mut buf: Vec<u8> = vec![];
v.encode(&mut buf);
assert_eq!(buf, vec![0x05, 0x2D, 0x31, 0x2E, 0x30, 0x35]);
let v = BigDecimal::new(BigInt::from(-105), -3);
let mut buf: Vec<u8> = vec![];
v.encode(&mut buf);
assert_eq!(buf, vec![0x07, 0x2D, 0x31, 0x30, 0x35, 0x30, 0x30, 0x30]);
let v = BigDecimal::new(BigInt::from(105), 5);
let mut buf: Vec<u8> = vec![];
v.encode(&mut buf);
assert_eq!(buf, vec![0x07, 0x30, 0x2E, 0x30, 0x30, 0x31, 0x30, 0x35]);
}
#[test]
fn test_decode_decimal() {
let buf: Vec<u8> = vec![0x05, 0x2D, 0x31, 0x2E, 0x30, 0x35];
let v = BigDecimal::decode(MySqlValue::binary(
MySqlTypeInfo::new(TypeId::NEWDECIMAL), buf.as_slice(),
)).unwrap();
assert_eq!(v.to_string(), "-1.05");
let buf: Vec<u8> = vec![0x04, 0x30, 0x2E, 0x30, 0x35];
let v = BigDecimal::decode(MySqlValue::binary(
MySqlTypeInfo::new(TypeId::NEWDECIMAL), buf.as_slice(),
)).unwrap();
assert_eq!(v.to_string(), "0.05");
let buf: Vec<u8> = vec![0x06, 0x2D, 0x39, 0x30, 0x30, 0x30, 0x30];
let v = BigDecimal::decode(MySqlValue::binary(
MySqlTypeInfo::new(TypeId::NEWDECIMAL), buf.as_slice(),
)).unwrap();
assert_eq!(v.to_string(), "-90000");
}