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Add more test cases for match_wildcard_for_single_variants

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This commit is contained in:
Vardan Margaryan 2020-05-16 00:19:30 +03:00
parent 2620d2449d
commit d90625385e
3 changed files with 104 additions and 4 deletions
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43
tests/ui/match_wildcard_for_single_variants.fixed
View file

@ -9,10 +9,51 @@ enum Foo {
C,
}
enum Color {
Red,
Green,
Blue,
Rgb(u8, u8, u8),
}
fn main() {
match Foo::A {
let f = Foo::A;
match f {
Foo::A => {},
Foo::B => {},
Foo::C => {},
}
let color = Color::Red;
// check exhaustive bindings
match color {
Color::Red => {},
Color::Green => {},
Color::Rgb(_r, _g, _b) => {},
Color::Blue => {},
}
// check exhaustive wild
match color {
Color::Red => {},
Color::Green => {},
Color::Rgb(..) => {},
Color::Blue => {},
}
match color {
Color::Red => {},
Color::Green => {},
Color::Rgb(_, _, _) => {},
Color::Blue => {},
}
// shouldn't lint as there is one missing variant
// and one that isn't exhaustively covered
match color {
Color::Red => {},
Color::Green => {},
Color::Rgb(255, _, _) => {},
_ => {},
}
}

43
tests/ui/match_wildcard_for_single_variants.rs
View file

@ -9,10 +9,51 @@ enum Foo {
C,
}
enum Color {
Red,
Green,
Blue,
Rgb(u8, u8, u8),
}
fn main() {
match Foo::A {
let f = Foo::A;
match f {
Foo::A => {},
Foo::B => {},
_ => {},
}
let color = Color::Red;
// check exhaustive bindings
match color {
Color::Red => {},
Color::Green => {},
Color::Rgb(_r, _g, _b) => {},
_ => {},
}
// check exhaustive wild
match color {
Color::Red => {},
Color::Green => {},
Color::Rgb(..) => {},
_ => {},
}
match color {
Color::Red => {},
Color::Green => {},
Color::Rgb(_, _, _) => {},
_ => {},
}
// shouldn't lint as there is one missing variant
// and one that isn't exhaustively covered
match color {
Color::Red => {},
Color::Green => {},
Color::Rgb(255, _, _) => {},
_ => {},
}
}

22
tests/ui/match_wildcard_for_single_variants.stderr
View file

@ -1,10 +1,28 @@
error: wildcard match will miss any future added variants
--> $DIR/match_wildcard_for_single_variants.rs:16:9
--> $DIR/match_wildcard_for_single_variants.rs:24:9
|
LL | _ => {},
| ^ help: try this: `Foo::C`
|
= note: `-D clippy::match-wildcard-for-single-variants` implied by `-D warnings`
error: aborting due to previous error
error: wildcard match will miss any future added variants
--> $DIR/match_wildcard_for_single_variants.rs:34:9
|
LL | _ => {},
| ^ help: try this: `Color::Blue`
error: wildcard match will miss any future added variants
--> $DIR/match_wildcard_for_single_variants.rs:42:9
|
LL | _ => {},
| ^ help: try this: `Color::Blue`
error: wildcard match will miss any future added variants
--> $DIR/match_wildcard_for_single_variants.rs:48:9
|
LL | _ => {},
| ^ help: try this: `Color::Blue`
error: aborting due to 4 previous errors