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Use matches! in examples.

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This commit is contained in:
Stephen Chung
2020-03-14 23:40:30 +08:00
parent b9e4040635
commit 6e076c409d
6 changed files with 98 additions and 84 deletions
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110
tests/math.rs
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@@ -24,54 +24,76 @@ fn test_math() -> Result<(), EvalAltResult> {
{
#[cfg(not(feature = "only_i32"))]
{
match engine.eval::<INT>("(-9223372036854775808).abs()") {
Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
r => panic!("should return overflow error: {:?}", r),
}
match engine.eval::<INT>("9223372036854775807 + 1") {
Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
r => panic!("should return overflow error: {:?}", r),
}
match engine.eval::<INT>("-9223372036854775808 - 1") {
Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
r => panic!("should return underflow error: {:?}", r),
}
match engine.eval::<INT>("9223372036854775807 * 9223372036854775807") {
Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
r => panic!("should return overflow error: {:?}", r),
}
match engine.eval::<INT>("9223372036854775807 / 0") {
Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
r => panic!("should return division by zero error: {:?}", r),
}
match engine.eval::<INT>("9223372036854775807 % 0") {
Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
r => panic!("should return division by zero error: {:?}", r),
}
assert!(matches!(
engine
.eval::<INT>("(-9223372036854775808).abs()")
.expect_err("expects negation overflow"),
EvalAltResult::ErrorArithmetic(_, _)
));
assert!(matches!(
engine
.eval::<INT>("9223372036854775807 + 1")
.expect_err("expects overflow"),
EvalAltResult::ErrorArithmetic(_, _)
));
assert!(matches!(
engine
.eval::<INT>("-9223372036854775808 - 1")
.expect_err("expects underflow"),
EvalAltResult::ErrorArithmetic(_, _)
));
assert!(matches!(
engine
.eval::<INT>("9223372036854775807 * 9223372036854775807")
.expect_err("expects overflow"),
EvalAltResult::ErrorArithmetic(_, _)
));
assert!(matches!(
engine
.eval::<INT>("9223372036854775807 / 0")
.expect_err("expects division by zero"),
EvalAltResult::ErrorArithmetic(_, _)
));
assert!(matches!(
engine
.eval::<INT>("9223372036854775807 % 0")
.expect_err("expects division by zero"),
EvalAltResult::ErrorArithmetic(_, _)
));
}
#[cfg(feature = "only_i32")]
{
match engine.eval::<INT>("2147483647 + 1") {
Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
r => panic!("should return overflow error: {:?}", r),
}
match engine.eval::<INT>("-2147483648 - 1") {
Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
r => panic!("should return underflow error: {:?}", r),
}
match engine.eval::<INT>("2147483647 * 2147483647") {
Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
r => panic!("should return overflow error: {:?}", r),
}
match engine.eval::<INT>("2147483647 / 0") {
Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
r => panic!("should return division by zero error: {:?}", r),
}
match engine.eval::<INT>("2147483647 % 0") {
Err(EvalAltResult::ErrorArithmetic(_, _)) => (),
r => panic!("should return division by zero error: {:?}", r),
}
assert!(matches!(
engine
.eval::<INT>("2147483647 + 1")
.expect_err("expects overflow"),
EvalAltResult::ErrorArithmetic(_, _)
));
assert!(matches!(
engine
.eval::<INT>("-2147483648 - 1")
.expect_err("expects underflow"),
EvalAltResult::ErrorArithmetic(_, _)
));
assert!(matches!(
engine
.eval::<INT>("2147483647 * 2147483647")
.expect_err("expects overflow"),
EvalAltResult::ErrorArithmetic(_, _)
));
assert!(matches!(
engine
.eval::<INT>("2147483647 / 0")
.expect_err("expects division by zero"),
EvalAltResult::ErrorArithmetic(_, _)
));
assert!(matches!(
engine
.eval::<INT>("2147483647 % 0")
.expect_err("expects division by zero"),
EvalAltResult::ErrorArithmetic(_, _)
));
}
}