Test validate()

src/main.rs

@@ -253,4 +253,36 @@ mod tests {
 
         Ok(())
     }
+
+    #[test]
+    fn test_validate() -> Result<(), Box<dyn Error>> {
+        // Success first.
+        let meta = Path::new(env!("CARGO_MANIFEST_DIR"))
+            .join("corpus")
+            .join("v2")
+            .join("minimal.json");
+
+        match validate(meta.as_os_str().to_str().unwrap()) {
+            Ok(_) => (),
+            Err(e) => panic!("Validation failed: {e}"),
+        }
+
+        // Invalid next.
+        let meta = Path::new(env!("CARGO_MANIFEST_DIR"))
+            .join("corpus")
+            .join("invalid.json");
+
+        match std::panic::catch_unwind(|| validate(meta.as_os_str().to_str().unwrap())) {
+            Ok(_) => panic!("Should have failed on invalid.json but did not"),
+            Err(e) => {
+                if let Ok(msg) = e.downcast::<String>() {
+                    assert!(msg.contains(" missing properties 'version"));
+                } else {
+                    panic!("Unexpected panic error");
+                }
+            }
+        }
+
+        Ok(())
+    }
 }