const memoizedTest = () => ({
  contextName, // Name of step & group of tests
  initialStateFn, // <- Fn that runs initial state tests of step
  interactionsFn, // <- Fn that runs behaviour and user interactions tests
  proceedFn, // <- Fn used to proceed to next step
  userCase, // Specific param to proceed to diferent ramifications of user cases
}) => {
  // Initialize cached block
  localStorage.setObject(
    contextName,
    localStorage.getObject(contextName) || {},
  );
  // Use default if not an object, or a atribute key
  // generated like: ['key1:value1/key2:value2/key3:value3']
  const userCaseKey = typeof userCase !== 'object'
    ? (userCase || 'default')
    : Object.keys(userCase).map(key => `${key}:${userCase[key]}`).join('/');

  if (localStorage.getObject(contextName)[userCaseKey]) {
    // Finish this step without further testing
    proceedFn && context(`${contextName} - SKIPPING`, () => proceedFn(userCase));
  } else {
    const ucOrEmptyObj = userCase || {};
    context(contextName, () => {
      // Run all tests from step
      initialStateFn(ucOrEmptyObj);
      interactionsFn(ucOrEmptyObj);
      // And now, proceed to next step
      // unless it's the last step
      proceedFn && proceedFn(ucOrEmptyObj);
    });
    // Mark the tests as already run to avoid repeating
    localStorage.setObject(
      contextName,
      Object.assign(
        {},
        localStorage.getObject(contextName),
        { [userCaseKey]: true },
      ),
    );
  }
};


export const generateTest = memoizedTest();