Add tests for error types with custom functions and types

libimagerror/src/error_gen.rs

@@ -115,7 +115,11 @@ macro_rules! generate_error_types {
         $kindname: ident,
         $($kind:ident => $string:expr),*
     ) => {
-        generate_custom_error_types!($name, $kindname, members = {}, functions = {}, $($kind),*);
+        #[derive(Debug, Clone, Eq, PartialEq, Ord, PartialOrd, Copy)]
+        pub struct SomeNotExistingTypeWithATypeNameNoOneWillEverChoose {}
+        generate_custom_error_types!($name, $kindname,
+                                     SomeNotExistingTypeWithATypeNameNoOneWillEverChoose,
+                                     $($kind => $string),*);
     }
 }
 
@@ -129,6 +133,36 @@ mod test {
             TestErrorKindB => "testerrorkind B");
     );
 
+    #[derive(Debug, Clone, Eq, PartialEq, Ord, PartialOrd, Copy)]
+    pub struct CustomData {
+        pub test: i32,
+        pub othr: i64,
+    }
+
+    generate_error_imports!();
+
+    generate_custom_error_types!(CustomTestError, CustomTestErrorKind,
+        CustomData,
+        CustomErrorKindA => "customerrorkind a",
+        CustomErrorKindB => "customerrorkind B");
+
+    impl CustomTestError {
+        pub fn test(&self) -> i32 {
+            match self.custom_data {
+                Some(t) => t.test,
+                None => 0,
+            }
+        }
+
+        pub fn bar(&self) -> i64 {
+            match self.custom_data {
+                Some(t) => t.othr,
+                None => 0,
+            }
+        }
+    }
+
+
     #[test]
     fn test_a() {
         use self::error::{TestError, TestErrorKind};