Add more tests for match_overlapping_arm lint

rust-lang · Jan 24, 2021 · 0518911 · 0518911
1 parent 70704db
commit 0518911
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Showing 2 changed files with 43 additions and 1 deletion.
diff --git a/tests/ui/match_overlapping_arm.rs b/tests/ui/match_overlapping_arm.rs
@@ -69,6 +69,24 @@ fn overlapping() {
  _ => (),
  }
 
+ match 42 {
+ 0..14 => println!("0 .. 14"),
+ 5..10 => println!("5 .. 10"),
+ _ => (),
+ }
+
+ match 42 {
+ 5..14 => println!("5 .. 14"),
+ 0..=10 => println!("0 ... 10"),
+ _ => (),
+ }
+
+ match 42 {
+ 0..7 => println!("0 .. 7"),
+ 0..=10 => println!("0 ... 10"),
+ _ => (),
+ }
+
  /*
  // FIXME(JohnTitor): uncomment this once rustfmt knows half-open patterns
  match 42 {

diff --git a/tests/ui/match_overlapping_arm.stderr b/tests/ui/match_overlapping_arm.stderr
@@ -35,5 +35,29 @@ note: overlaps with this
 LL | 0..=11 => println!("0 ... 11"),
  | ^^^^^^
 
-error: aborting due to 3 previous errors
+error: some ranges overlap
+ --> $DIR/match_overlapping_arm.rs:80:9
+ |
+LL | 0..=10 => println!("0 ... 10"),
+ | ^^^^^^
+ |
+note: overlaps with this
+ --> $DIR/match_overlapping_arm.rs:79:9
+ |
+LL | 5..14 => println!("5 .. 14"),
+ | ^^^^^
+
+error: some ranges overlap
+ --> $DIR/match_overlapping_arm.rs:85:9
+ |
+LL | 0..7 => println!("0 .. 7"),
+ | ^^^^
+ |
+note: overlaps with this
+ --> $DIR/match_overlapping_arm.rs:86:9
+ |
+LL | 0..=10 => println!("0 ... 10"),
+ | ^^^^^^
+
+error: aborting due to 5 previous errors