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How to use errorWithLocations method in Playwright Internal

Best JavaScript code snippet using playwright-internal

fixtures.js

Source:fixtures.js

...105        }106        const fn = value;107        const previous = this.registrations.get(name);108        if (previous && options) {109          if (previous.scope !== options.scope) throw errorWithLocations(`Fixture "${name}" has already been registered as a { scope: '${previous.scope}' } fixture.`, {110            location,111            name112          }, previous);113          if (previous.auto !== options.auto) throw errorWithLocations(`Fixture "${name}" has already been registered as a { auto: '${previous.scope}' } fixture.`, {114            location,115            name116          }, previous);117        } else if (previous) {118          options = {119            auto: previous.auto,120            scope: previous.scope121          };122        } else if (!options) {123          options = {124            auto: false,125            scope: 'test'126          };127        }128        if (options.scope !== 'test' && options.scope !== 'worker') throw errorWithLocations(`Fixture "${name}" has unknown { scope: '${options.scope}' }.`, {129          location,130          name131        });132        if (options.scope === 'worker' && disallowWorkerFixtures) throw errorWithLocations(`Cannot use({ ${name} }) in a describe group, because it forces a new worker.\nMake it top-level in the test file or put in the configuration file.`, {133          location,134          name135        });136        const deps = fixtureParameterNames(fn, location);137        const registration = {138          id: '',139          name,140          location,141          scope: options.scope,142          fn,143          auto: options.auto,144          deps,145          super: previous146        };147        registrationId(registration);148        this.registrations.set(name, registration);149      }150    }151    this.digest = this.validate();152  }153  validate() {154    const markers = new Map();155    const stack = [];156    const visit = registration => {157      markers.set(registration, 'visiting');158      stack.push(registration);159      for (const name of registration.deps) {160        const dep = this.resolveDependency(registration, name);161        if (!dep) {162          if (name === registration.name) throw errorWithLocations(`Fixture "${registration.name}" references itself, but does not have a base implementation.`, registration);else throw errorWithLocations(`Fixture "${registration.name}" has unknown parameter "${name}".`, registration);163        }164        if (registration.scope === 'worker' && dep.scope === 'test') throw errorWithLocations(`Worker fixture "${registration.name}" cannot depend on a test fixture "${name}".`, registration, dep);165        if (!markers.has(dep)) {166          visit(dep);167        } else if (markers.get(dep) === 'visiting') {168          const index = stack.indexOf(dep);169          const regs = stack.slice(index, stack.length);170          const names = regs.map(r => `"${r.name}"`);171          throw errorWithLocations(`Fixtures ${names.join(' -> ')} -> "${dep.name}" form a dependency cycle.`, ...regs);172        }173      }174      markers.set(registration, 'visited');175      stack.pop();176    };177    const hash = crypto.createHash('sha1');178    const names = Array.from(this.registrations.keys()).sort();179    for (const name of names) {180      const registration = this.registrations.get(name);181      visit(registration);182      if (registration.scope === 'worker') hash.update(registration.id + ';');183    }184    return hash.digest('hex');185  }186  validateFunction(fn, prefix, location) {187    const visit = registration => {188      for (const name of registration.deps) visit(this.resolveDependency(registration, name));189    };190    for (const name of fixtureParameterNames(fn, location)) {191      const registration = this.registrations.get(name);192      if (!registration) throw errorWithLocations(`${prefix} has unknown parameter "${name}".`, {193        location,194        name: prefix,195        quoted: false196      });197      visit(registration);198    }199  }200  resolveDependency(registration, name) {201    if (name === registration.name) return registration.super;202    return this.registrations.get(name);203  }204}205exports.FixturePool = FixturePool;206class FixtureRunner {207  constructor() {208    this.testScopeClean = true;209    this.pool = void 0;210    this.instanceForId = new Map();211  }212  setPool(pool) {213    if (!this.testScopeClean) throw new Error('Did not teardown test scope');214    if (this.pool && pool.digest !== this.pool.digest) throw new Error('Digests do not match');215    this.pool = pool;216  }217  async teardownScope(scope) {218    let error; // Teardown fixtures in the reverse order.219    const fixtures = Array.from(this.instanceForId.values()).reverse();220    for (const fixture of fixtures) {221      if (fixture.registration.scope === scope) {222        try {223          await fixture.teardown();224        } catch (e) {225          if (error === undefined) error = e;226        }227      }228    }229    if (scope === 'test') this.testScopeClean = true;230    if (error !== undefined) throw error;231  }232  async resolveParametersAndRunHookOrTest(fn, workerInfo, testInfo, paramsStepCallback) {233    // Install all automatic fixtures.234    for (const registration of this.pool.registrations.values()) {235      const shouldSkip = !testInfo && registration.scope === 'test';236      if (registration.auto && !shouldSkip) await this.setupFixtureForRegistration(registration, workerInfo, testInfo);237    } // Install used fixtures.238    const names = fixtureParameterNames(fn, {239      file: '<unused>',240      line: 1,241      column: 1242    });243    const params = {};244    for (const name of names) {245      const registration = this.pool.registrations.get(name);246      const fixture = await this.setupFixtureForRegistration(registration, workerInfo, testInfo);247      params[name] = fixture.value;248    } // Report fixture hooks step as completed.249    paramsStepCallback === null || paramsStepCallback === void 0 ? void 0 : paramsStepCallback();250    return fn(params, testInfo || workerInfo);251  }252  async setupFixtureForRegistration(registration, workerInfo, testInfo) {253    if (registration.scope === 'test') this.testScopeClean = false;254    let fixture = this.instanceForId.get(registration.id);255    if (fixture) return fixture;256    fixture = new Fixture(this, registration);257    this.instanceForId.set(registration.id, fixture);258    await fixture.setup(workerInfo, testInfo);259    return fixture;260  }261  dependsOnWorkerFixturesOnly(fn, location) {262    const names = fixtureParameterNames(fn, location);263    for (const name of names) {264      const registration = this.pool.registrations.get(name);265      if (registration.scope !== 'worker') return false;266    }267    return true;268  }269}270exports.FixtureRunner = FixtureRunner;271const signatureSymbol = Symbol('signature');272function fixtureParameterNames(fn, location) {273  if (typeof fn !== 'function') return [];274  if (!fn[signatureSymbol]) fn[signatureSymbol] = innerFixtureParameterNames(fn, location);275  return fn[signatureSymbol];276}277function innerFixtureParameterNames(fn, location) {278  const text = fn.toString();279  const match = text.match(/(?:async)?(?:\s+function)?[^(]*\(([^)]*)/);280  if (!match) return [];281  const trimmedParams = match[1].trim();282  if (!trimmedParams) return [];283  const [firstParam] = splitByComma(trimmedParams);284  if (firstParam[0] !== '{' || firstParam[firstParam.length - 1] !== '}') throw errorWithLocations('First argument must use the object destructuring pattern: ' + firstParam, {285    location286  });287  const props = splitByComma(firstParam.substring(1, firstParam.length - 1)).map(prop => {288    const colon = prop.indexOf(':');289    return colon === -1 ? prop : prop.substring(0, colon).trim();290  });291  return props;292}293function splitByComma(s) {294  const result = [];295  const stack = [];296  let start = 0;297  for (let i = 0; i < s.length; i++) {298    if (s[i] === '{' || s[i] === '[') {299      stack.push(s[i] === '{' ? '}' : ']');300    } else if (s[i] === stack[stack.length - 1]) {301      stack.pop();302    } else if (!stack.length && s[i] === ',') {303      const token = s.substring(start, i).trim();304      if (token) result.push(token);305      start = i + 1;306    }307  }308  const lastToken = s.substring(start).trim();309  if (lastToken) result.push(lastToken);310  return result;311} // name + superId, fn -> id312const registrationIdMap = new Map();313let lastId = 0;314function registrationId(registration) {315  if (registration.id) return registration.id;316  const key = registration.name + '@@@' + (registration.super ? registrationId(registration.super) : '');317  let map = registrationIdMap.get(key);318  if (!map) {319    map = new Map();320    registrationIdMap.set(key, map);321  }322  if (!map.has(registration.fn)) map.set(registration.fn, String(lastId++));323  registration.id = map.get(registration.fn);324  return registration.id;325}326function errorWithLocations(message, ...defined) {327  for (const {328    name,329    location,330    quoted331  } of defined) {332    let prefix = '';333    if (name && quoted === false) prefix = name + ' ';else if (name) prefix = `"${name}" `;334    message += `\n  ${prefix}defined at ${(0, _util.formatLocation)(location)}`;335  }336  return new Error(message);...

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