@amiceli/vitest-cucumber/dist/src/vitest/describe/describe-background.js

vitest tools to use Gherkin feature in unit tests

import { onTestFailed, test } from 'vitest';
import { ExpressionStep } from '../../parser/expression/ExpressionStep';
import { getVitestCucumberConfiguration } from '../configuration';
import { defineStepToTest, orderStepsToRun } from './define-step-test';
export function createBackgroundDescribeHandler({ background, predefinedSteps, backgroundCallback, }) {
    let backgroundStepsToRun = [];
    const config = getVitestCucumberConfiguration();
    const createScenarioStepCallback = (stepType) => {
        return (stepDetails, scenarioStepCallback) => {
            backgroundStepsToRun.push(defineStepToTest({
                parent: background,
                stepDetails,
                stepType,
                scenarioStepCallback,
            }));
        };
    };
    const scenarioStepsCallback = {
        Given: createScenarioStepCallback(`Given`),
        And: createScenarioStepCallback(`And`),
        context: {},
    };
    backgroundCallback(scenarioStepsCallback);
    const missingSteps = background.steps.filter((step) => {
        return (backgroundStepsToRun.find((s) => {
            return step.matchStep(s.step);
        }) === undefined);
    });
    for (const predefineStep of predefinedSteps) {
        const matchingSteps = missingSteps.filter((featureStep) => {
            if (featureStep.type !== predefineStep.step.type) {
                return false;
            }
            if (featureStep.details === predefineStep.step.details) {
                return true;
            }
            if (predefineStep.compiledPattern) {
                predefineStep.compiledPattern.regex.lastIndex = 0;
                return predefineStep.compiledPattern.regex.test(featureStep.details);
            }
            return false;
        });
        for (const missingStep of matchingSteps) {
            const params = ExpressionStep.matchStep(missingStep, predefineStep.step.details);
            backgroundStepsToRun.push({
                key: missingStep.getTitle(),
                fn: predefineStep.fn,
                step: missingStep,
                params: [
                    ...params,
                    missingStep.dataTables.length > 0
                        ? missingStep.dataTables
                        : null,
                    missingStep.docStrings,
                ].filter((p) => p !== null),
            });
            missingStep.isCalled = true;
        }
    }
    backgroundStepsToRun = orderStepsToRun(background, backgroundStepsToRun);
    background.checkIfStepWasCalled();
    return function backgroundDescribe() {
        test.for(backgroundStepsToRun.map((s) => {
            return [
                s.key,
                s,
            ];
        }))(`%s`, async ([, scenarioStep], ctx) => {
            onTestFailed(({ task }) => {
                const message = task.result?.errors?.at(0)?.message;
                config.onStepError({
                    error: new Error(message || `${scenarioStep.step.details} failed`),
                    ctx,
                    step: scenarioStep.step,
                });
            });
            await scenarioStep.fn(ctx, ...scenarioStep.params);
        });
    };
}