1 files changed, 109 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/dbg_macro/dbg_macro.rs b/src/tools/clippy/tests/ui/dbg_macro/dbg_macro.rs
new file mode 100644
index 000000000..3f4770c63
--- /dev/null
+++ b/src/tools/clippy/tests/ui/dbg_macro/dbg_macro.rs
@@ -0,0 +1,109 @@
+//@no-rustfix
+
+#![warn(clippy::dbg_macro)]
+
+#[path = "auxiliary/submodule.rs"]
+mod submodule;
+
+fn foo(n: u32) -> u32 {
+    if let Some(n) = dbg!(n.checked_sub(4)) { n } else { n }
+    //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+}
+fn bar(_: ()) {}
+
+fn factorial(n: u32) -> u32 {
+    if dbg!(n <= 1) {
+        //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+        dbg!(1)
+        //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+    } else {
+        dbg!(n * factorial(n - 1))
+        //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+    }
+}
+
+fn main() {
+    dbg!(42);
+    //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+    dbg!(dbg!(dbg!(42)));
+    //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+    foo(3) + dbg!(factorial(4));
+    //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+    dbg!(1, 2, dbg!(3, 4));
+    //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+    dbg!(1, 2, 3, 4, 5);
+    //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+}
+
+fn issue9914() {
+    macro_rules! foo {
+        ($x:expr) => {
+            $x;
+        };
+    }
+    macro_rules! foo2 {
+        ($x:expr) => {
+            $x;
+        };
+    }
+    macro_rules! expand_to_dbg {
+        () => {
+            dbg!();
+        };
+    }
+
+    dbg!();
+    //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+    #[allow(clippy::let_unit_value)]
+    let _ = dbg!();
+    //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+    bar(dbg!());
+    //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+    foo!(dbg!());
+    //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+    foo2!(foo!(dbg!()));
+    //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+    expand_to_dbg!();
+}
+
+mod issue7274 {
+    trait Thing<'b> {
+        fn foo(&self);
+    }
+
+    macro_rules! define_thing {
+        ($thing:ident, $body:expr) => {
+            impl<'a> Thing<'a> for $thing {
+                fn foo<'b>(&self) {
+                    $body
+                }
+            }
+        };
+    }
+
+    struct MyThing;
+    define_thing!(MyThing, {
+        dbg!(2);
+        //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+    });
+}
+
+#[test]
+pub fn issue8481() {
+    dbg!(1);
+    //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+}
+
+#[cfg(test)]
+fn foo2() {
+    dbg!(1);
+    //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+}
+
+#[cfg(test)]
+mod mod1 {
+    fn func() {
+        dbg!(1);
+        //~^ ERROR: the `dbg!` macro is intended as a debugging tool
+    }
+}