gplint/build/rules/no-background-only-scenario.js

A Gherkin linter/validator written in Javascript.

export const name = 'no-background-only-scenario';
export function run({ feature }) {
    if (!feature) {
        return [];
    }
    const errors = [];
    function checkScenariosContainer(container) {
        container.children.forEach(child => {
            if (child.background) {
                if (container.children.filter(c => c.scenario).length < 2) {
                    errors.push(createError(child.background));
                }
            }
            else if (child.rule) {
                checkScenariosContainer(child.rule);
            }
        });
    }
    checkScenariosContainer(feature);
    return errors;
}
function createError(background) {
    return {
        message: 'Backgrounds are not allowed when there is just one scenario.',
        rule: name,
        line: background.location.line,
        column: background.location.column,
    };
}
export const documentation = {
    description: 'Disallows background when there is just one scenario.',
    examples: [{
            title: 'Example',
            description: 'Enable rule',
            config: {
                [name]: 'error',
            }
        }],
};
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