Run Jest Tests as sequence of steps

environment-step.js

/* eslint-disable */

import NodeEnvironment from "jest-environment-node";

/**
 * Enables to run as steps of a pipeline
 *
 * Features
 *  - run all previous tests before running the current test
 *  - Skip all future steps if current step fails
 *
 * Conditions
 *  - Works only with one describe block in a file
 *
 * Usage
 *
 *   just add this file as `@jest-environment` code-block
 *  ```
 *  /**
 *   * @jest-environment ./tests/steps/environment
 *   * /
 *  ```
 *
 */
export default class StepEnvironment extends NodeEnvironment {
  async handleTestEvent(event, state) {
    const skipFutureTests = (testName, state) => {
      let foundSelectedTest = false;
      state.currentDescribeBlock.children[0].tests.forEach(test => {
        if (!foundSelectedTest) {
          if (test.name == testName) {
            foundSelectedTest = true;
          }
        } else {
          test.mode = "skip";
        }
      });
    };

    if (
      event.name == "run_describe_start" &&
      event.describeBlock.tests.length > 0
    ) {
      const testNamePattern = state.testNamePattern
        ? state.testNamePattern.toString()
        : "//i";
      const testNamePatternStr = testNamePattern.substring(
        1,
        testNamePattern.length - 2
      );
      const describeBlockName = event.describeBlock.name;
      if (
        testNamePatternStr.startsWith(describeBlockName) &&
        testNamePatternStr.length > describeBlockName.length
      ) {
        // testNamePattern starts with this describe name , and has more to it
        // meaning trying to run a specific test

        // reset the namePattern only to describeBlock name
        state.testNamePattern = new RegExp(describeBlockName, "i");

        // skip all future tests
        const testName = testNamePatternStr
          .substring(describeBlockName.length)
          .trim();

        skipFutureTests(testName, state);
      }
    }

    //skip future tests if current test failed
    if (event.name == "test_fn_failure") {
      skipFutureTests(event.test.name, state);
    }
  }
}

Use https://www.npmjs.com/package/jest-environment-steps package to get going easily