test: improve cov

pyo3-macros-backend/src/frompyobject.rs

@@ -181,7 +181,9 @@ impl<'a> Container<'a> {
                                         attrs.getter = Some(FieldGetter::GetItem(Some(item_name)));
                                     }
                                     FieldGetter::GetItem(None) => bail_spanned!(from_item_all.span() => "Useless `item` - the struct is already annotated with `from_item_all`"),
-                                    FieldGetter::GetAttr(_) => bail_spanned!(from_item_all.span() => "The struct is already annotated with `from_item_all`, `attr` is not allowed"),
+                                    FieldGetter::GetAttr(_) => bail_spanned!(
+                                        from_item_all.span() => "The struct is already annotated with `from_item_all`, `attribute` is not allowed"
+                                    ),
                                 }
                             }
                         }

tests/ui/invalid_frompy_derive.rs

@@ -177,12 +177,18 @@ struct InvalidTransparentWithGetter {
 
 #[derive(FromPyObject)]
 #[pyo3(from_item_all)]
-struct ItemAllOnTuple(String);
+struct FromItemAllOnTuple(String);
 
 #[derive(FromPyObject)]
 #[pyo3(from_item_all)]
 #[pyo3(transparent)]
-struct ItemAllWithTransparent {
+struct FromItemAllWithTransparent {
+    field: String,
+}
+
+#[derive(FromPyObject)]
+#[pyo3(from_item_all, from_item_all)]
+struct MultipleFromItemAll {
     field: String,
 }
 
@@ -195,15 +201,15 @@ struct UselessItemAttr {
 
 #[derive(FromPyObject)]
 #[pyo3(from_item_all)]
-struct ItemAllConflictAttr {
-    #[pyo3(attr)]
+struct FromItemAllConflictAttr {
+    #[pyo3(attribute)]
     field: String,
 }
 
 #[derive(FromPyObject)]
 #[pyo3(from_item_all)]
-struct ItemAllConflictAttrWithArgs {
-    #[pyo3(attr("f"))]
+struct FromItemAllConflictAttrWithArgs {
+    #[pyo3(attribute("f"))]
     field: String,
 }
 

tests/ui/invalid_frompy_derive.stderr

@@ -200,20 +200,26 @@ error: `transparent` structs may not have a `getter` for the inner field
 186 |     field: String,
     |     ^^^^^
 
-error: Useless `item` - the struct is already annotated with `from_item_all`
-   --> tests/ui/invalid_frompy_derive.rs:190:8
+error: `from_item_all` may only be provided once
+   --> tests/ui/invalid_frompy_derive.rs:190:23
     |
-190 | #[pyo3(from_item_all)]
+190 | #[pyo3(from_item_all, from_item_all)]
+    |                       ^^^^^^^^^^^^^
+
+error: Useless `item` - the struct is already annotated with `from_item_all`
+   --> tests/ui/invalid_frompy_derive.rs:196:8
+    |
+196 | #[pyo3(from_item_all)]
     |        ^^^^^^^^^^^^^
 
-error: expected one of: `attribute`, `item`, `from_py_with`
-   --> tests/ui/invalid_frompy_derive.rs:199:12
+error: The struct is already annotated with `from_item_all`, `attribute` is not allowed
+   --> tests/ui/invalid_frompy_derive.rs:203:8
     |
-199 |     #[pyo3(attr)]
-    |            ^^^^
+203 | #[pyo3(from_item_all)]
+    |        ^^^^^^^^^^^^^
 
-error: expected one of: `attribute`, `item`, `from_py_with`
-   --> tests/ui/invalid_frompy_derive.rs:206:12
+error: The struct is already annotated with `from_item_all`, `attribute` is not allowed
+   --> tests/ui/invalid_frompy_derive.rs:210:8
     |
-206 |     #[pyo3(attr("f"))]
-    |            ^^^^
+210 | #[pyo3(from_item_all)]
+    |        ^^^^^^^^^^^^^