add test for HasParamSpec

Author: ranfdev

glib/src/param_spec.rs

@@ -2025,4 +2025,20 @@ mod tests {
         assert_eq!(pspec.minimum(), -2);
         assert_eq!(pspec.flags(), ParamFlags::READWRITE);
     }
+
+    #[test]
+    fn test_has_param_spec() {
+        let pspec = <i32 as HasParamSpec>::param_spec_builder()("name")
+            .blurb("Simple int parameter")
+            .minimum(-2)
+            .explicit_notify()
+            .build();
+
+        assert_eq!(pspec.name(), "name");
+        assert_eq!(pspec.blurb(), Some("Simple int parameter"));
+        assert_eq!(
+            pspec.flags(),
+            ParamFlags::READWRITE
+        );
+    }
 }