more error messages

[skip ci]

openapi_type/tests/fail/tuple_struct.rs

@@ -0,0 +1,6 @@
+use openapi_type::OpenapiType;
+
+#[derive(OpenapiType)]
+struct Foo(i64, i64);
+
+fn main() {}

openapi_type/tests/fail/tuple_struct.stderr

@@ -0,0 +1,5 @@
+error: #[derive(OpenapiType)] does not support tuple structs
+ --> $DIR/tuple_struct.rs:4:11
+  |
+4 | struct Foo(i64, i64);
+  |           ^^^^^^^^^^

openapi_type/tests/fail/tuple_variant.rs

@@ -0,0 +1,8 @@
+use openapi_type::OpenapiType;
+
+#[derive(OpenapiType)]
+enum Foo {
+	Pair(i64, i64)
+}
+
+fn main() {}

openapi_type/tests/fail/tuple_variant.stderr

@@ -0,0 +1,5 @@
+error: #[derive(OpenapiType)] does not support tuple variants
+ --> $DIR/tuple_variant.rs:5:6
+  |
+5 |     Pair(i64, i64)
+  |         ^^^^^^^^^^

openapi_type/tests/fail/union.rs

@@ -0,0 +1,9 @@
+use openapi_type::OpenapiType;
+
+#[derive(OpenapiType)]
+union Foo {
+	signed: i64,
+	unsigned: u64
+}
+
+fn main() {}

openapi_type/tests/fail/union.stderr

@@ -0,0 +1,5 @@
+error: #[derive(OpenapiType)] cannot be used on unions
+ --> $DIR/union.rs:4:1
+  |
+4 | union Foo {
+  | ^^^^^

openapi_type/tests/fail/unknown_attribute.rs

@@ -0,0 +1,7 @@
+use openapi_type::OpenapiType;
+
+#[derive(OpenapiType)]
+#[openapi(pizza)]
+struct Foo;
+
+fn main() {}

openapi_type/tests/fail/unknown_attribute.stderr

@@ -0,0 +1,5 @@
+error: Unexpected token
+ --> $DIR/unknown_attribute.rs:4:11
+  |
+4 | #[openapi(pizza)]
+  |           ^^^^^