if (AstUtil.isMethodNamed(mce, "contains")) {
            checkOutputContains(mce);
        } else if (AstUtil.isMethodNamed(mce, "assertOutputContains")) {
            Expression objectExpr = mce.getObjectExpression();
            checkIndirectOutputContains(objectExpr, mce);
        }
    }

    private void checkOutputContains(MethodCallExpression call) {
        ASTNode receiver = call.getReceiver();