1 files changed, 47 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/serde.rs b/src/tools/clippy/tests/ui/serde.rs
new file mode 100644
index 000000000..5843344eb
--- /dev/null
+++ b/src/tools/clippy/tests/ui/serde.rs
@@ -0,0 +1,47 @@
+#![warn(clippy::serde_api_misuse)]
+#![allow(dead_code)]
+
+extern crate serde;
+
+struct A;
+
+impl<'de> serde::de::Visitor<'de> for A {
+    type Value = ();
+
+    fn expecting(&self, _: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        unimplemented!()
+    }
+
+    fn visit_str<E>(self, _v: &str) -> Result<Self::Value, E>
+    where
+        E: serde::de::Error,
+    {
+        unimplemented!()
+    }
+
+    fn visit_string<E>(self, _v: String) -> Result<Self::Value, E>
+    where
+        E: serde::de::Error,
+    {
+        unimplemented!()
+    }
+}
+
+struct B;
+
+impl<'de> serde::de::Visitor<'de> for B {
+    type Value = ();
+
+    fn expecting(&self, _: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        unimplemented!()
+    }
+
+    fn visit_string<E>(self, _v: String) -> Result<Self::Value, E>
+    where
+        E: serde::de::Error,
+    {
+        unimplemented!()
+    }
+}
+
+fn main() {}