1 files changed, 60 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/dbg_macro.rs b/src/tools/clippy/tests/ui/dbg_macro.rs
new file mode 100644
index 000000000..25294e8c7
--- /dev/null
+++ b/src/tools/clippy/tests/ui/dbg_macro.rs
@@ -0,0 +1,60 @@
+// compile-flags: --test
+#![warn(clippy::dbg_macro)]
+
+fn foo(n: u32) -> u32 {
+    if let Some(n) = dbg!(n.checked_sub(4)) { n } else { n }
+}
+
+fn factorial(n: u32) -> u32 {
+    if dbg!(n <= 1) {
+        dbg!(1)
+    } else {
+        dbg!(n * factorial(n - 1))
+    }
+}
+
+fn main() {
+    dbg!(42);
+    dbg!(dbg!(dbg!(42)));
+    foo(3) + dbg!(factorial(4));
+    dbg!(1, 2, dbg!(3, 4));
+    dbg!(1, 2, 3, 4, 5);
+}
+
+mod issue7274 {
+    trait Thing<'b> {
+        fn foo(&self);
+    }
+
+    macro_rules! define_thing {
+        ($thing:ident, $body:expr) => {
+            impl<'a> Thing<'a> for $thing {
+                fn foo<'b>(&self) {
+                    $body
+                }
+            }
+        };
+    }
+
+    struct MyThing;
+    define_thing!(MyThing, {
+        dbg!(2);
+    });
+}
+
+#[test]
+pub fn issue8481() {
+    dbg!(1);
+}
+
+#[cfg(test)]
+fn foo2() {
+    dbg!(1);
+}
+
+#[cfg(test)]
+mod mod1 {
+    fn func() {
+        dbg!(1);
+    }
+}