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-rw-r--r--src/tools/clippy/tests/ui/cmp_owned/comparison_flip.rs29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/cmp_owned/comparison_flip.rs b/src/tools/clippy/tests/ui/cmp_owned/comparison_flip.rs
new file mode 100644
index 000000000..662673abb
--- /dev/null
+++ b/src/tools/clippy/tests/ui/cmp_owned/comparison_flip.rs
@@ -0,0 +1,29 @@
+// run-rustfix
+
+use std::fmt::{self, Display};
+
+fn main() {
+ let a = Foo;
+
+ if a.to_string() != "bar" {
+ println!("foo");
+ }
+
+ if "bar" != a.to_string() {
+ println!("foo");
+ }
+}
+
+struct Foo;
+
+impl Display for Foo {
+ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+ write!(f, "foo")
+ }
+}
+
+impl PartialEq<&str> for Foo {
+ fn eq(&self, other: &&str) -> bool {
+ "foo" == *other
+ }
+}