expect(received).toContain(expected) // indexOf Expected substring: "Positional argument 'invalid_value' does not match the regex: ^[a-zA-Z0-9_]+$" Received string: " Syntax Error: You specified the following unknown values: \"invalid_value\".· Could not interpret them as a group, command name, or positional option. " at packages/imperative/src/cmd/src/syntax/__tests__/SyntaxValidator.unit.test.ts:71:46