Improved Tests for Schema Size Limit (Issue #312)(Adding Test max encoded schema limit exceeded to pallet/schema)

pallets/schema/src/tests.rs

@@ -314,3 +314,48 @@ fn test_schema_lookup() {
 		}
 	});
 }
+
+#[cfg(test)]
+mod tests {
+	// This module contains unit tests for the `pallet/schema` module.
+	// Unit tests are isolated tests that focus on the functionality of a single module
+	// and are typically run during development and testing to ensure the module
+	// behaves as expected.
+	// The `#[cfg(test)]` attribute ensures this module is only compiled when the
+	// `test` feature is enabled.
+	use super::*;
+	use mock::MockStorage; // Assuming you have a mock for storage
+
+	#[test]
+	fn test_max_encoded_schema_limit_exceeded_create() {
+		// Arrange
+		let mut mock_storage = MockStorage::new();
+		const MAX_SCHEMA_SIZE: usize = 1024; // Replace with the actual value
+
+		// Act
+		let large_schema_data = vec![0u8; MAX_SCHEMA_SIZE + 1];
+		let result = Schema::create(
+			Origin::signed(DID_00), // Replace with appropriate origin type
+			large_schema_data.clone(),
+			Default::default(),
+		);
+
+		// Assert
+		assert_eq!(result.err().unwrap(), Error::<Test>::MaxEncodedSchemaLimitExceeded,);
+	}
+
+	// Add similar test cases for other functions that might return the error
+
+	#[test]
+	fn test_max_encoded_schema_limit_exceeded_edge_case() {
+		// Arrange (similar to above)
+
+		// Act
+		let almost_large_data = vec![0u8; MAX_SCHEMA_SIZE - 1];
+		let result =
+			Schema::create(Origin::signed(DID_00), almost_large_data.clone(), Default::default());
+
+		// Assert
+		assert!(result.is_ok()); // Should not exceed limit
+	}
+}