detect-testing-library-utils.ts

import {
  ASTUtils,
  TSESLint,
  TSESTree,
} from '@typescript-eslint/experimental-utils';

import {
  getAssertNodeInfo,
  getDeepestIdentifierNode,
  getImportModuleName,
  getPropertyIdentifierNode,
  getReferenceNode,
  hasImportMatch,
  ImportModuleNode,
  isImportDeclaration,
  isImportDefaultSpecifier,
  isImportNamespaceSpecifier,
  isImportSpecifier,
  isLiteral,
  isMemberExpression,
  isObjectPattern,
  isProperty,
} from '../node-utils';
import {
  ABSENCE_MATCHERS,
  ALL_QUERIES_COMBINATIONS,
  ASYNC_UTILS,
  PRESENCE_MATCHERS,
} from '../utils';

const SETTING_OPTION_OFF = 'off' as const;

export type TestingLibrarySettings = {
  'testing-library/utils-module'?: string | typeof SETTING_OPTION_OFF;
  'testing-library/custom-renders'?: string[] | typeof SETTING_OPTION_OFF;
  'testing-library/custom-queries'?: string[] | typeof SETTING_OPTION_OFF;
};

export type TestingLibraryContext<
  TOptions extends readonly unknown[],
  TMessageIds extends string
> = Readonly<
  TSESLint.RuleContext<TMessageIds, TOptions> & {
    settings: TestingLibrarySettings;
  }
>;

export type EnhancedRuleCreate<
  TOptions extends readonly unknown[],
  TMessageIds extends string,
  TRuleListener extends TSESLint.RuleListener = TSESLint.RuleListener
> = (
  context: TestingLibraryContext<TOptions, TMessageIds>,
  optionsWithDefault: Readonly<TOptions>,
  detectionHelpers: Readonly<DetectionHelpers>
) => TRuleListener;

// Helpers methods
type GetTestingLibraryImportNodeFn = () => ImportModuleNode | null;
type GetCustomModuleImportNodeFn = () => ImportModuleNode | null;
type GetTestingLibraryImportNameFn = () => string | undefined;
type GetCustomModuleImportNameFn = () => string | undefined;
type IsTestingLibraryImportedFn = (isStrict?: boolean) => boolean;
type IsGetQueryVariantFn = (node: TSESTree.Identifier) => boolean;
type IsQueryQueryVariantFn = (node: TSESTree.Identifier) => boolean;
type IsFindQueryVariantFn = (node: TSESTree.Identifier) => boolean;
type IsSyncQueryFn = (node: TSESTree.Identifier) => boolean;
type IsAsyncQueryFn = (node: TSESTree.Identifier) => boolean;
type IsQueryFn = (node: TSESTree.Identifier) => boolean;
type IsCustomQueryFn = (node: TSESTree.Identifier) => boolean;
type IsBuiltInQueryFn = (node: TSESTree.Identifier) => boolean;
type IsAsyncUtilFn = (
  node: TSESTree.Identifier,
  validNames?: readonly typeof ASYNC_UTILS[number][]
) => boolean;
type IsFireEventMethodFn = (node: TSESTree.Identifier) => boolean;
type IsUserEventMethodFn = (node: TSESTree.Identifier) => boolean;
type IsRenderUtilFn = (node: TSESTree.Identifier | null) => boolean;
type IsRenderVariableDeclaratorFn = (
  node: TSESTree.VariableDeclarator
) => boolean;
type IsDebugUtilFn = (identifierNode: TSESTree.Identifier) => boolean;
type IsPresenceAssertFn = (node: TSESTree.MemberExpression) => boolean;
type IsAbsenceAssertFn = (node: TSESTree.MemberExpression) => boolean;
type CanReportErrorsFn = () => boolean;
type FindImportedUtilSpecifierFn = (
  specifierName: string
) => TSESTree.ImportClause | TSESTree.Identifier | undefined;
type IsNodeComingFromTestingLibraryFn = (
  node: TSESTree.MemberExpression | TSESTree.Identifier
) => boolean;

export interface DetectionHelpers {
  getTestingLibraryImportNode: GetTestingLibraryImportNodeFn;
  getCustomModuleImportNode: GetCustomModuleImportNodeFn;
  getTestingLibraryImportName: GetTestingLibraryImportNameFn;
  getCustomModuleImportName: GetCustomModuleImportNameFn;
  isTestingLibraryImported: IsTestingLibraryImportedFn;
  isGetQueryVariant: IsGetQueryVariantFn;
  isQueryQueryVariant: IsQueryQueryVariantFn;
  isFindQueryVariant: IsFindQueryVariantFn;
  isSyncQuery: IsSyncQueryFn;
  isAsyncQuery: IsAsyncQueryFn;
  isQuery: IsQueryFn;
  isCustomQuery: IsCustomQueryFn;
  isBuiltInQuery: IsBuiltInQueryFn;
  isAsyncUtil: IsAsyncUtilFn;
  isFireEventUtil: (node: TSESTree.Identifier | null) => boolean;
  isUserEventUtil: (node: TSESTree.Identifier | null) => boolean;
  isFireEventMethod: IsFireEventMethodFn;
  isUserEventMethod: IsUserEventMethodFn;
  isRenderUtil: IsRenderUtilFn;
  isRenderVariableDeclarator: IsRenderVariableDeclaratorFn;
  isDebugUtil: IsDebugUtilFn;
  isPresenceAssert: IsPresenceAssertFn;
  isAbsenceAssert: IsAbsenceAssertFn;
  canReportErrors: CanReportErrorsFn;
  findImportedUtilSpecifier: FindImportedUtilSpecifierFn;
  isNodeComingFromTestingLibrary: IsNodeComingFromTestingLibraryFn;
}

const USER_EVENT_PACKAGE = '@testing-library/user-event';
const FIRE_EVENT_NAME = 'fireEvent';
const USER_EVENT_NAME = 'userEvent';
const RENDER_NAME = 'render';

export type DetectionOptions = {
  /**
   * If true, force `detectTestingLibraryUtils` to skip `canReportErrors`
   * so it doesn't opt-out rule listener.
   *
   * Useful when some rule apply to files other than testing ones
   * (e.g. `consistent-data-testid`)
   */
  skipRuleReportingCheck: boolean;
};

/**
 * Enhances a given rule `create` with helpers to detect Testing Library utils.
 */
export function detectTestingLibraryUtils<
  TOptions extends readonly unknown[],
  TMessageIds extends string,
  TRuleListener extends TSESLint.RuleListener = TSESLint.RuleListener
>(
  ruleCreate: EnhancedRuleCreate<TOptions, TMessageIds, TRuleListener>,
  { skipRuleReportingCheck = false }: Partial<DetectionOptions> = {}
) {
  return (
    context: TestingLibraryContext<TOptions, TMessageIds>,
    optionsWithDefault: Readonly<TOptions>
  ): TSESLint.RuleListener => {
    let importedTestingLibraryNode: ImportModuleNode | null = null;
    let importedCustomModuleNode: ImportModuleNode | null = null;
    let importedUserEventLibraryNode: ImportModuleNode | null = null;

    // Init options based on shared ESLint settings
    const customModuleSetting =
      context.settings['testing-library/utils-module'];
    const customRendersSetting =
      context.settings['testing-library/custom-renders'];
    const customQueriesSetting =
      context.settings['testing-library/custom-queries'];

    /**
     * Small method to extract common checks to determine whether a node is
     * related to Testing Library or not.
     *
     * To determine whether a node is a valid Testing Library util, there are
     * two conditions to match:
     * - it's named in a particular way (decided by given callback)
     * - it's imported from valid Testing Library module (depends on aggressive
     *    reporting)
     */
    function isTestingLibraryUtil(
      node: TSESTree.Identifier,
      isUtilCallback: (
        identifierNodeName: string,
        originalNodeName?: string
      ) => boolean
    ): boolean {
      if (!node) {
        return false;
      }

      const referenceNode = getReferenceNode(node);
      const referenceNodeIdentifier = getPropertyIdentifierNode(referenceNode);

      if (!referenceNodeIdentifier) {
        return false;
      }

      const importedUtilSpecifier = getImportedUtilSpecifier(
        referenceNodeIdentifier
      );

      const originalNodeName =
        isImportSpecifier(importedUtilSpecifier) &&
        importedUtilSpecifier.local.name !== importedUtilSpecifier.imported.name
          ? importedUtilSpecifier.imported.name
          : undefined;

      if (!isUtilCallback(node.name, originalNodeName)) {
        return false;
      }

      if (isAggressiveModuleReportingEnabled()) {
        return true;
      }

      return isNodeComingFromTestingLibrary(referenceNodeIdentifier);
    }

    /**
     * Determines whether aggressive module reporting is enabled or not.
     *
     * This aggressive reporting mechanism is considered as enabled when custom
     * module is not set, so we need to assume everything matching Testing
     * Library utils is related to Testing Library no matter from where module
     * they are coming from. Otherwise, this aggressive reporting mechanism is
     * opted-out in favour to report only those utils coming from Testing
     * Library package or custom module set up on settings.
     */
    const isAggressiveModuleReportingEnabled = () => !customModuleSetting;

    /**
     * Determines whether aggressive render reporting is enabled or not.
     *
     * This aggressive reporting mechanism is considered as enabled when custom
     * renders are not set, so we need to assume every method containing
     * "render" is a valid Testing Library `render`. Otherwise, this aggressive
     * reporting mechanism is opted-out in favour to report only `render` or
     * names set up on custom renders setting.
     */
    const isAggressiveRenderReportingEnabled = (): boolean => {
      const isSwitchedOff = customRendersSetting === SETTING_OPTION_OFF;
      const hasCustomOptions =
        Array.isArray(customRendersSetting) && customRendersSetting.length > 0;

      return !isSwitchedOff && !hasCustomOptions;
    };

    /**
     * Determines whether Aggressive Reporting for queries is enabled or not.
     *
     * This Aggressive Reporting mechanism is considered as enabled when custom-queries setting is not set,
     * so the plugin needs to report both built-in and custom queries.
     * Otherwise, this Aggressive Reporting mechanism is opted-out in favour of reporting only built-in queries + those
     * indicated in custom-queries setting.
     */
    const isAggressiveQueryReportingEnabled = (): boolean => {
      const isSwitchedOff = customQueriesSetting === SETTING_OPTION_OFF;
      const hasCustomOptions =
        Array.isArray(customQueriesSetting) && customQueriesSetting.length > 0;

      return !isSwitchedOff && !hasCustomOptions;
    };

    const getCustomModule = (): string | undefined => {
      if (
        !isAggressiveModuleReportingEnabled() &&
        customModuleSetting !== SETTING_OPTION_OFF
      ) {
        return customModuleSetting;
      }
      return undefined;
    };

    const getCustomRenders = (): string[] => {
      if (
        !isAggressiveRenderReportingEnabled() &&
        customRendersSetting !== SETTING_OPTION_OFF
      ) {
        return customRendersSetting as string[];
      }

      return [];
    };

    const getCustomQueries = (): string[] => {
      if (
        !isAggressiveQueryReportingEnabled() &&
        customQueriesSetting !== SETTING_OPTION_OFF
      ) {
        return customQueriesSetting as string[];
      }

      return [];
    };

    // Helpers for Testing Library detection.
    const getTestingLibraryImportNode: GetTestingLibraryImportNodeFn = () => {
      return importedTestingLibraryNode;
    };

    const getCustomModuleImportNode: GetCustomModuleImportNodeFn = () => {
      return importedCustomModuleNode;
    };

    const getTestingLibraryImportName: GetTestingLibraryImportNameFn = () => {
      return getImportModuleName(importedTestingLibraryNode);
    };

    const getCustomModuleImportName: GetCustomModuleImportNameFn = () => {
      return getImportModuleName(importedCustomModuleNode);
    };

    /**
     * Determines whether Testing Library utils are imported or not for
     * current file being analyzed.
     *
     * By default, it is ALWAYS considered as imported. This is what we call
     * "aggressive reporting" so we don't miss TL utils reexported from
     * custom modules.
     *
     * However, there is a setting to customize the module where TL utils can
     * be imported from: "testing-library/utils-module". If this setting is enabled,
     * then this method will return `true` ONLY IF a testing-library package
     * or custom module are imported.
     */
    const isTestingLibraryImported: IsTestingLibraryImportedFn = (
      isStrict = false
    ) => {
      const isSomeModuleImported =
        !!importedTestingLibraryNode || !!importedCustomModuleNode;

      return (
        (!isStrict && isAggressiveModuleReportingEnabled()) ||
        isSomeModuleImported
      );
    };

    /**
     * Determines whether a given node is a reportable query,
     * either a built-in or a custom one.
     *
     * Depending on Aggressive Query Reporting setting, custom queries will be
     * reportable or not.
     */
    const isQuery: IsQueryFn = (node) => {
      const hasQueryPattern = /^(get|query|find)(All)?By.+$/.test(node.name);
      if (!hasQueryPattern) {
        return false;
      }

      if (isAggressiveQueryReportingEnabled()) {
        return true;
      }

      const customQueries = getCustomQueries();
      const isBuiltInQuery = ALL_QUERIES_COMBINATIONS.includes(node.name);
      const isReportableCustomQuery = customQueries.some((pattern) =>
        new RegExp(pattern).test(node.name)
      );
      return isBuiltInQuery || isReportableCustomQuery;
    };

    /**
     * Determines whether a given node is `get*` query variant or not.
     */
    const isGetQueryVariant: IsGetQueryVariantFn = (node) => {
      return isQuery(node) && node.name.startsWith('get');
    };

    /**
     * Determines whether a given node is `query*` query variant or not.
     */
    const isQueryQueryVariant: IsQueryQueryVariantFn = (node) => {
      return isQuery(node) && node.name.startsWith('query');
    };

    /**
     * Determines whether a given node is `find*` query variant or not.
     */
    const isFindQueryVariant: IsFindQueryVariantFn = (node) => {
      return isQuery(node) && node.name.startsWith('find');
    };

    /**
     * Determines whether a given node is sync query or not.
     */
    const isSyncQuery: IsSyncQueryFn = (node) => {
      return isGetQueryVariant(node) || isQueryQueryVariant(node);
    };

    /**
     * Determines whether a given node is async query or not.
     */
    const isAsyncQuery: IsAsyncQueryFn = (node) => {
      return isFindQueryVariant(node);
    };

    const isCustomQuery: IsCustomQueryFn = (node) => {
      return isQuery(node) && !ALL_QUERIES_COMBINATIONS.includes(node.name);
    };

    const isBuiltInQuery = (node: TSESTree.Identifier): boolean => {
      return isQuery(node) && ALL_QUERIES_COMBINATIONS.includes(node.name);
    };

    /**
     * Determines whether a given node is a valid async util or not.
     *
     * A node will be interpreted as a valid async util based on two conditions:
     * the name matches with some Testing Library async util, and the node is
     * coming from Testing Library module.
     *
     * The latter depends on Aggressive module reporting:
     * if enabled, then it doesn't matter from where the given node was imported
     * from as it will be considered part of Testing Library.
     * Otherwise, it means `custom-module` has been set up, so only those nodes
     * coming from Testing Library will be considered as valid.
     */
    const isAsyncUtil: IsAsyncUtilFn = (node, validNames = ASYNC_UTILS) => {
      return isTestingLibraryUtil(
        node,
        (identifierNodeName, originalNodeName) => {
          return (
            (validNames as string[]).includes(identifierNodeName) ||
            (!!originalNodeName &&
              (validNames as string[]).includes(originalNodeName))
          );
        }
      );
    };

    /**
     * Determines whether a given node is fireEvent util itself or not.
     *
     * Not to be confused with {@link isFireEventMethod}
     */
    const isFireEventUtil = (node: TSESTree.Identifier | null): boolean => {
      if (!node) return false;

      return isTestingLibraryUtil(
        node,
        (identifierNodeName, originalNodeName) => {
          return [identifierNodeName, originalNodeName].includes('fireEvent');
        }
      );
    };

    /**
     * Determines whether a given node is userEvent util itself or not.
     *
     * Not to be confused with {@link isUserEventMethod}
     */
    const isUserEventUtil = (node: TSESTree.Identifier | null): boolean => {
      if (!node) return false;

      const userEvent = findImportedUserEventSpecifier();
      let userEventName: string | undefined;

      if (userEvent) {
        userEventName = userEvent.name;
      } else if (isAggressiveModuleReportingEnabled()) {
        userEventName = USER_EVENT_NAME;
      }

      if (!userEventName) {
        return false;
      }

      return node.name === userEventName;
    };

    /**
     * Determines whether a given node is fireEvent method or not
     */
    const isFireEventMethod: IsFireEventMethodFn = (node) => {
      const fireEventUtil = findImportedUtilSpecifier(FIRE_EVENT_NAME);
      let fireEventUtilName: string | undefined;

      if (fireEventUtil) {
        fireEventUtilName = ASTUtils.isIdentifier(fireEventUtil)
          ? fireEventUtil.name
          : fireEventUtil.local.name;
      } else if (isAggressiveModuleReportingEnabled()) {
        fireEventUtilName = FIRE_EVENT_NAME;
      }

      if (!fireEventUtilName) {
        return false;
      }

      const parentMemberExpression: TSESTree.MemberExpression | undefined =
        node.parent && isMemberExpression(node.parent)
          ? node.parent
          : undefined;

      if (!parentMemberExpression) {
        return false;
      }

      // make sure that given node it's not fireEvent object itself
      if (
        [fireEventUtilName, FIRE_EVENT_NAME].includes(node.name) ||
        (ASTUtils.isIdentifier(parentMemberExpression.object) &&
          parentMemberExpression.object.name === node.name)
      ) {
        return false;
      }

      // check fireEvent.click() usage
      const regularCall =
        ASTUtils.isIdentifier(parentMemberExpression.object) &&
        parentMemberExpression.object.name === fireEventUtilName;

      // check testingLibraryUtils.fireEvent.click() usage
      const wildcardCall =
        isMemberExpression(parentMemberExpression.object) &&
        ASTUtils.isIdentifier(parentMemberExpression.object.object) &&
        parentMemberExpression.object.object.name === fireEventUtilName &&
        ASTUtils.isIdentifier(parentMemberExpression.object.property) &&
        parentMemberExpression.object.property.name === FIRE_EVENT_NAME;

      return regularCall || wildcardCall;
    };

    const isUserEventMethod: IsUserEventMethodFn = (node) => {
      const userEvent = findImportedUserEventSpecifier();
      let userEventName: string | undefined;

      if (userEvent) {
        userEventName = userEvent.name;
      } else if (isAggressiveModuleReportingEnabled()) {
        userEventName = USER_EVENT_NAME;
      }

      if (!userEventName) {
        return false;
      }

      const parentMemberExpression: TSESTree.MemberExpression | undefined =
        node.parent && isMemberExpression(node.parent)
          ? node.parent
          : undefined;

      if (!parentMemberExpression) {
        return false;
      }

      // make sure that given node it's not userEvent object itself
      if (
        [userEventName, USER_EVENT_NAME].includes(node.name) ||
        (ASTUtils.isIdentifier(parentMemberExpression.object) &&
          parentMemberExpression.object.name === node.name)
      ) {
        return false;
      }

      // check userEvent.click() usage
      return (
        ASTUtils.isIdentifier(parentMemberExpression.object) &&
        parentMemberExpression.object.name === userEventName
      );
    };

    /**
     * Determines whether a given node is a valid render util or not.
     *
     * A node will be interpreted as a valid render based on two conditions:
     * the name matches with a valid "render" option, and the node is coming
     * from Testing Library module. This depends on:
     *
     * - Aggressive render reporting: if enabled, then every node name
     * containing "render" will be assumed as Testing Library render util.
     * Otherwise, it means `custom-modules` has been set up, so only those nodes
     * named as "render" or some of the `custom-modules` options will be
     * considered as Testing Library render util.
     * - Aggressive module reporting: if enabled, then it doesn't matter from
     * where the given node was imported from as it will be considered part of
     * Testing Library. Otherwise, it means `custom-module` has been set up, so
     * only those nodes coming from Testing Library will be considered as valid.
     */
    const isRenderUtil: IsRenderUtilFn = (node) => {
      if (!node) return false;

      return isTestingLibraryUtil(
        node,
        (identifierNodeName, originalNodeName) => {
          if (isAggressiveRenderReportingEnabled()) {
            return identifierNodeName.toLowerCase().includes(RENDER_NAME);
          }

          return [RENDER_NAME, ...getCustomRenders()].some(
            (validRenderName) =>
              validRenderName === identifierNodeName ||
              (Boolean(originalNodeName) &&
                validRenderName === originalNodeName)
          );
        }
      );
    };

    const isRenderVariableDeclarator: IsRenderVariableDeclaratorFn = (node) => {
      if (!node.init) {
        return false;
      }
      const initIdentifierNode = getDeepestIdentifierNode(node.init);

      if (!initIdentifierNode) {
        return false;
      }

      return isRenderUtil(initIdentifierNode);
    };

    const isDebugUtil: IsDebugUtilFn = (identifierNode) => {
      const isBuiltInConsole =
        isMemberExpression(identifierNode.parent) &&
        ASTUtils.isIdentifier(identifierNode.parent.object) &&
        identifierNode.parent.object.name === 'console';

      return (
        !isBuiltInConsole &&
        isTestingLibraryUtil(
          identifierNode,
          (identifierNodeName, originalNodeName) => {
            return [identifierNodeName, originalNodeName]
              .filter(Boolean)
              .includes('debug');
          }
        )
      );
    };

    /**
     * Determines whether a given MemberExpression node is a presence assert
     *
     * Presence asserts could have shape of:
     *  - expect(element).toBeInTheDocument()
     *  - expect(element).not.toBeNull()
     */
    const isPresenceAssert: IsPresenceAssertFn = (node) => {
      const { matcher, isNegated } = getAssertNodeInfo(node);

      if (!matcher) {
        return false;
      }

      return isNegated
        ? ABSENCE_MATCHERS.includes(matcher)
        : PRESENCE_MATCHERS.includes(matcher);
    };

    /**
     * Determines whether a given MemberExpression node is an absence assert
     *
     * Absence asserts could have shape of:
     *  - expect(element).toBeNull()
     *  - expect(element).not.toBeInTheDocument()
     */
    const isAbsenceAssert: IsAbsenceAssertFn = (node) => {
      const { matcher, isNegated } = getAssertNodeInfo(node);

      if (!matcher) {
        return false;
      }

      return isNegated
        ? PRESENCE_MATCHERS.includes(matcher)
        : ABSENCE_MATCHERS.includes(matcher);
    };

    /**
     * Gets a string and verifies if it was imported/required by Testing Library
     * related module.
     */
    const findImportedUtilSpecifier: FindImportedUtilSpecifierFn = (
      specifierName
    ) => {
      const node = getCustomModuleImportNode() ?? getTestingLibraryImportNode();

      if (!node) {
        return undefined;
      }

      if (isImportDeclaration(node)) {
        const namedExport = node.specifiers.find((n) => {
          return (
            isImportSpecifier(n) &&
            [n.imported.name, n.local.name].includes(specifierName)
          );
        });

        // it is "import { foo [as alias] } from 'baz'""
        if (namedExport) {
          return namedExport;
        }

        // it could be "import * as rtl from 'baz'"
        return node.specifiers.find((n) => isImportNamespaceSpecifier(n));
      } else {
        if (!ASTUtils.isVariableDeclarator(node.parent)) {
          return undefined;
        }
        const requireNode = node.parent;

        if (ASTUtils.isIdentifier(requireNode.id)) {
          // this is const rtl = require('foo')
          return requireNode.id;
        }

        // this should be const { something } = require('foo')
        if (!isObjectPattern(requireNode.id)) {
          return undefined;
        }

        const property = requireNode.id.properties.find(
          (n) =>
            isProperty(n) &&
            ASTUtils.isIdentifier(n.key) &&
            n.key.name === specifierName
        );
        if (!property) {
          return undefined;
        }
        return (property as TSESTree.Property).key as TSESTree.Identifier;
      }
    };

    const findImportedUserEventSpecifier: () => TSESTree.Identifier | null = () => {
      if (!importedUserEventLibraryNode) {
        return null;
      }

      if (isImportDeclaration(importedUserEventLibraryNode)) {
        const userEventIdentifier = importedUserEventLibraryNode.specifiers.find(
          (specifier) => isImportDefaultSpecifier(specifier)
        );

        if (userEventIdentifier) {
          return userEventIdentifier.local;
        }
      } else {
        if (
          !ASTUtils.isVariableDeclarator(importedUserEventLibraryNode.parent)
        ) {
          return null;
        }

        const requireNode = importedUserEventLibraryNode.parent;
        if (!ASTUtils.isIdentifier(requireNode.id)) {
          return null;
        }

        return requireNode.id;
      }

      return null;
    };

    const getImportedUtilSpecifier = (
      node: TSESTree.MemberExpression | TSESTree.Identifier
    ): TSESTree.ImportClause | TSESTree.Identifier | undefined => {
      const identifierName: string | undefined = getPropertyIdentifierNode(node)
        ?.name;

      if (!identifierName) {
        return undefined;
      }

      return findImportedUtilSpecifier(identifierName);
    };

    /**
     * Determines if file inspected meets all conditions to be reported by rules or not.
     */
    const canReportErrors: CanReportErrorsFn = () => {
      return skipRuleReportingCheck || isTestingLibraryImported();
    };

    /**
     * Determines whether a node is imported from a valid Testing Library module
     *
     * This method will try to find any import matching the given node name,
     * and also make sure the name is a valid match in case it's been renamed.
     */
    const isNodeComingFromTestingLibrary: IsNodeComingFromTestingLibraryFn = (
      node
    ) => {
      const importNode = getImportedUtilSpecifier(node);

      if (!importNode) {
        return false;
      }

      const identifierName: string | undefined = getPropertyIdentifierNode(node)
        ?.name;

      if (!identifierName) {
        return false;
      }

      return hasImportMatch(importNode, identifierName);
    };

    const helpers: DetectionHelpers = {
      getTestingLibraryImportNode,
      getCustomModuleImportNode,
      getTestingLibraryImportName,
      getCustomModuleImportName,
      isTestingLibraryImported,
      isGetQueryVariant,
      isQueryQueryVariant,
      isFindQueryVariant,
      isSyncQuery,
      isAsyncQuery,
      isQuery,
      isCustomQuery,
      isBuiltInQuery,
      isAsyncUtil,
      isFireEventUtil,
      isUserEventUtil,
      isFireEventMethod,
      isUserEventMethod,
      isRenderUtil,
      isRenderVariableDeclarator,
      isDebugUtil,
      isPresenceAssert,
      isAbsenceAssert,
      canReportErrors,
      findImportedUtilSpecifier,
      isNodeComingFromTestingLibrary,
    };

    // Instructions for Testing Library detection.
    const detectionInstructions: TSESLint.RuleListener = {
      /**
       * This ImportDeclaration rule listener will check if Testing Library related
       * modules are imported. Since imports happen first thing in a file, it's
       * safe to use `isImportingTestingLibraryModule` and `isImportingCustomModule`
       * since they will have corresponding value already updated when reporting other
       * parts of the file.
       */
      ImportDeclaration(node: TSESTree.ImportDeclaration) {
        // check only if testing library import not found yet so we avoid
        // to override importedTestingLibraryNode after it's found
        if (
          !importedTestingLibraryNode &&
          /testing-library/g.test(node.source.value as string)
        ) {
          importedTestingLibraryNode = node;
        }

        // check only if custom module import not found yet so we avoid
        // to override importedCustomModuleNode after it's found
        const customModule = getCustomModule();
        if (
          customModule &&
          !importedCustomModuleNode &&
          String(node.source.value).endsWith(customModule)
        ) {
          importedCustomModuleNode = node;
        }

        // check only if user-event import not found yet so we avoid
        // to override importedUserEventLibraryNode after it's found
        if (
          !importedUserEventLibraryNode &&
          String(node.source.value) === USER_EVENT_PACKAGE
        ) {
          importedUserEventLibraryNode = node;
        }
      },

      // Check if Testing Library related modules are loaded with required.
      [`CallExpression > Identifier[name="require"]`](
        node: TSESTree.Identifier
      ) {
        const callExpression = node.parent as TSESTree.CallExpression;
        const { arguments: args } = callExpression;

        if (
          !importedTestingLibraryNode &&
          args.some(
            (arg) =>
              isLiteral(arg) &&
              typeof arg.value === 'string' &&
              /testing-library/g.test(arg.value)
          )
        ) {
          importedTestingLibraryNode = callExpression;
        }

        const customModule = getCustomModule();
        if (
          !importedCustomModuleNode &&
          args.some(
            (arg) =>
              customModule &&
              isLiteral(arg) &&
              typeof arg.value === 'string' &&
              arg.value.endsWith(customModule)
          )
        ) {
          importedCustomModuleNode = callExpression;
        }

        if (
          !importedCustomModuleNode &&
          args.some(
            (arg) =>
              isLiteral(arg) &&
              typeof arg.value === 'string' &&
              arg.value === USER_EVENT_PACKAGE
          )
        ) {
          importedUserEventLibraryNode = callExpression;
        }
      },
    };

    // update given rule to inject Testing Library detection
    const ruleInstructions = ruleCreate(context, optionsWithDefault, helpers);
    const enhancedRuleInstructions: TSESLint.RuleListener = {};

    const allKeys = new Set(
      Object.keys(detectionInstructions).concat(Object.keys(ruleInstructions))
    );

    // Iterate over ALL instructions keys so we can override original rule instructions
    // to prevent their execution if conditions to report errors are not met.
    allKeys.forEach((instruction) => {
      enhancedRuleInstructions[instruction] = (node) => {
        if (instruction in detectionInstructions) {
          detectionInstructions[instruction]?.(node);
        }

        if (canReportErrors() && ruleInstructions[instruction]) {
          return ruleInstructions[instruction]?.(node);
        }
      };
    });

    return enhancedRuleInstructions;
  };
}