Enforce tests exist for each component

AllComponents.test.ts

// This file assures that a Jest test file and Cypress test file exists for each component.
import path from "path";
import fs from "fs";

function getFiles(filepath: string) {
  return fs.readdirSync(filepath).filter(function (file) {
    return fs.statSync(path.join(filepath, file)).isFile();
  });
}

function getComponentNames() {
  const componentsPath = path.join(__dirname, "./");
  const componentFiles = getFiles(componentsPath)
    .filter((f) => f.endsWith(".tsx")) // The component files should all have a .tsx extension
    .filter((f) => !f.endsWith(".test.tsx")) // Ignore tests

  return componentFiles.map((filename) => {
    const filenameWithoutExtension = filename.replace(".tsx", "");
    return filenameWithoutExtension;
  });
}

const components = getComponentNames().map((f) => [f, true]);

test.each(components)(
  "Jest unit tests should exist for %s",
  (input, output) => {
    // By convention, each Jest test is stored in this path,
    // and should have the same name as the component, with a ".test.tsx" extension.
    const expectedTestPath = path.join(__dirname, `${input}.test.tsx`);
    expect(fs.existsSync(expectedTestPath)).toBe(output);
  }
);

test.each(components)(
  "Cypress integration test should exist for %s",
  (input, output) => {
    // By convention, each Cypress test is stored in this path,
    // and should have the same name as the component, with a ".spec.ts" extension.
    const expectedTestPath = path.join(
      __dirname,
      "../",
      "cypress",
      "integration",
      `${input}.spec.ts`
    );
    expect(fs.existsSync(expectedTestPath)).toBe(output);
  }
);