add test for custom class name

pyo3cls/src/py_class.rs

@@ -224,6 +224,7 @@ fn parse_attribute(attr: String) -> HashMap<&'static str, syn::Ident> {
     let mut params = HashMap::new();
 
     if let Ok(tts) = syn::parse_token_trees(&attr) {
+        let mut elem = Vec::new();
         let mut elems = Vec::new();
 
         for tt in tts.iter() {
@@ -232,7 +233,6 @@ fn parse_attribute(attr: String) -> HashMap<&'static str, syn::Ident> {
                     println!("Wrong format: {:?}", attr.to_string());
                 }
                 &syn::TokenTree::Delimited(ref delimited) => {
-                    let mut elem = Vec::new();
                     for tt in delimited.tts.iter() {
                         match tt {
                             &syn::TokenTree::Token(syn::Token::Comma) => {
@@ -245,6 +245,9 @@ fn parse_attribute(attr: String) -> HashMap<&'static str, syn::Ident> {
                 }
             }
         }
+        if !elem.is_empty() {
+            elems.push(elem);
+        }
 
         for elem in elems {
             if elem.len() < 3 {

tests/test_class.rs

@@ -51,6 +51,18 @@ fn empty_class() {
     py_assert!(py, typeobj, "typeobj.__name__ == 'EmptyClass'");
 }
 
+
+#[py::class(name=CustomName)]
+struct EmptyClass2 { }
+
+#[test]
+fn custom_class_name() {
+    let gil = Python::acquire_gil();
+    let py = gil.python();
+    let typeobj = py.get_type::<EmptyClass2>();
+    py_assert!(py, typeobj, "typeobj.__name__ == 'CustomName'");
+}
+
 #[py::class]
 struct EmptyClassInModule { }