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How to use unstable_trace method in Playwright Internal

Best JavaScript code snippet using playwright-internal

Tracing-test.internal.js

Source:Tracing-test.internal.js

...27  describe('enableSchedulerTracing enabled', () => {28    beforeEach(() => loadModules({enableSchedulerTracing: true}));29    it('should return the value of a traced function', () => {30      expect(31        SchedulerTracing.unstable_trace('arbitrary', currentTime, () => 123),32      ).toBe(123);33    });34    it('should return the value of a clear function', () => {35      expect(SchedulerTracing.unstable_clear(() => 123)).toBe(123);36    });37    it('should return the value of a wrapped function', () => {38      let wrapped;39      SchedulerTracing.unstable_trace('arbitrary', currentTime, () => {40        wrapped = SchedulerTracing.unstable_wrap(() => 123);41      });42      expect(wrapped()).toBe(123);43    });44    it('should pass arguments through to a wrapped function', done => {45      let wrapped;46      SchedulerTracing.unstable_trace('arbitrary', currentTime, () => {47        wrapped = SchedulerTracing.unstable_wrap((param1, param2) => {48          expect(param1).toBe('foo');49          expect(param2).toBe('bar');50          done();51        });52      });53      wrapped('foo', 'bar');54    });55    it('should return an empty set when outside of a traced event', () => {56      expect(SchedulerTracing.unstable_getCurrent()).toContainNoInteractions();57    });58    it('should report the traced interaction from within the trace callback', done => {59      advanceTimeBy(100);60      SchedulerTracing.unstable_trace('some event', currentTime, () => {61        const interactions = SchedulerTracing.unstable_getCurrent();62        expect(interactions).toMatchInteractions([63          {name: 'some event', timestamp: 100},64        ]);65        done();66      });67    });68    it('should report the traced interaction from within wrapped callbacks', done => {69      let wrappedIndirection;70      function indirection() {71        const interactions = SchedulerTracing.unstable_getCurrent();72        expect(interactions).toMatchInteractions([73          {name: 'some event', timestamp: 100},74        ]);75        done();76      }77      advanceTimeBy(100);78      SchedulerTracing.unstable_trace('some event', currentTime, () => {79        wrappedIndirection = SchedulerTracing.unstable_wrap(indirection);80      });81      advanceTimeBy(50);82      wrappedIndirection();83    });84    it('should clear the interaction stack for traced callbacks', () => {85      let innerTestReached = false;86      SchedulerTracing.unstable_trace('outer event', currentTime, () => {87        expect(SchedulerTracing.unstable_getCurrent()).toMatchInteractions([88          {name: 'outer event'},89        ]);90        SchedulerTracing.unstable_clear(() => {91          expect(SchedulerTracing.unstable_getCurrent()).toMatchInteractions(92            [],93          );94          SchedulerTracing.unstable_trace('inner event', currentTime, () => {95            expect(SchedulerTracing.unstable_getCurrent()).toMatchInteractions([96              {name: 'inner event'},97            ]);98            innerTestReached = true;99          });100        });101        expect(SchedulerTracing.unstable_getCurrent()).toMatchInteractions([102          {name: 'outer event'},103        ]);104      });105      expect(innerTestReached).toBe(true);106    });107    it('should clear the interaction stack for wrapped callbacks', () => {108      let innerTestReached = false;109      let wrappedIndirection;110      const indirection = jest.fn(() => {111        expect(SchedulerTracing.unstable_getCurrent()).toMatchInteractions([112          {name: 'outer event'},113        ]);114        SchedulerTracing.unstable_clear(() => {115          expect(SchedulerTracing.unstable_getCurrent()).toMatchInteractions(116            [],117          );118          SchedulerTracing.unstable_trace('inner event', currentTime, () => {119            expect(SchedulerTracing.unstable_getCurrent()).toMatchInteractions([120              {name: 'inner event'},121            ]);122            innerTestReached = true;123          });124        });125        expect(SchedulerTracing.unstable_getCurrent()).toMatchInteractions([126          {name: 'outer event'},127        ]);128      });129      SchedulerTracing.unstable_trace('outer event', currentTime, () => {130        wrappedIndirection = SchedulerTracing.unstable_wrap(indirection);131      });132      wrappedIndirection();133      expect(innerTestReached).toBe(true);134    });135    it('should support nested traced events', done => {136      advanceTimeBy(100);137      let innerIndirectionTraced = false;138      let outerIndirectionTraced = false;139      function innerIndirection() {140        const interactions = SchedulerTracing.unstable_getCurrent();141        expect(interactions).toMatchInteractions([142          {name: 'outer event', timestamp: 100},143          {name: 'inner event', timestamp: 150},144        ]);145        innerIndirectionTraced = true;146      }147      function outerIndirection() {148        const interactions = SchedulerTracing.unstable_getCurrent();149        expect(interactions).toMatchInteractions([150          {name: 'outer event', timestamp: 100},151        ]);152        outerIndirectionTraced = true;153      }154      SchedulerTracing.unstable_trace('outer event', currentTime, () => {155        // Verify the current traced event156        let interactions = SchedulerTracing.unstable_getCurrent();157        expect(interactions).toMatchInteractions([158          {name: 'outer event', timestamp: 100},159        ]);160        advanceTimeBy(50);161        const wrapperOuterIndirection = SchedulerTracing.unstable_wrap(162          outerIndirection,163        );164        let wrapperInnerIndirection;165        let innerEventTraced = false;166        // Verify that a nested event is properly traced167        SchedulerTracing.unstable_trace('inner event', currentTime, () => {168          interactions = SchedulerTracing.unstable_getCurrent();169          expect(interactions).toMatchInteractions([170            {name: 'outer event', timestamp: 100},171            {name: 'inner event', timestamp: 150},172          ]);173          // Verify that a wrapped outer callback is properly traced174          wrapperOuterIndirection();175          expect(outerIndirectionTraced).toBe(true);176          wrapperInnerIndirection = SchedulerTracing.unstable_wrap(177            innerIndirection,178          );179          innerEventTraced = true;180        });181        expect(innerEventTraced).toBe(true);182        // Verify that the original event is restored183        interactions = SchedulerTracing.unstable_getCurrent();184        expect(interactions).toMatchInteractions([185          {name: 'outer event', timestamp: 100},186        ]);187        // Verify that a wrapped nested callback is properly traced188        wrapperInnerIndirection();189        expect(innerIndirectionTraced).toBe(true);190        done();191      });192    });193    describe('error handling', () => {194      it('should reset state appropriately when an error occurs in a trace callback', done => {195        advanceTimeBy(100);196        SchedulerTracing.unstable_trace('outer event', currentTime, () => {197          expect(() => {198            SchedulerTracing.unstable_trace('inner event', currentTime, () => {199              throw Error('intentional');200            });201          }).toThrow();202          expect(SchedulerTracing.unstable_getCurrent()).toMatchInteractions([203            {name: 'outer event', timestamp: 100},204          ]);205          done();206        });207      });208      it('should reset state appropriately when an error occurs in a wrapped callback', done => {209        advanceTimeBy(100);210        SchedulerTracing.unstable_trace('outer event', currentTime, () => {211          let wrappedCallback;212          SchedulerTracing.unstable_trace('inner event', currentTime, () => {213            wrappedCallback = SchedulerTracing.unstable_wrap(() => {214              throw Error('intentional');215            });216          });217          expect(wrappedCallback).toThrow();218          expect(SchedulerTracing.unstable_getCurrent()).toMatchInteractions([219            {name: 'outer event', timestamp: 100},220          ]);221          done();222        });223      });224    });225    describe('advanced integration', () => {226      it('should return a unique threadID per request', () => {227        expect(SchedulerTracing.unstable_getThreadID()).not.toBe(228          SchedulerTracing.unstable_getThreadID(),229        );230      });231      it('should expose the current set of interactions to be externally manipulated', () => {232        SchedulerTracing.unstable_trace('outer event', currentTime, () => {233          expect(SchedulerTracing.__interactionsRef.current).toBe(234            SchedulerTracing.unstable_getCurrent(),235          );236          SchedulerTracing.__interactionsRef.current = new Set([237            {name: 'override event'},238          ]);239          expect(SchedulerTracing.unstable_getCurrent()).toMatchInteractions([240            {name: 'override event'},241          ]);242        });243      });244      it('should expose a subscriber ref to be externally manipulated', () => {245        SchedulerTracing.unstable_trace('outer event', currentTime, () => {246          expect(SchedulerTracing.__subscriberRef).toEqual({247            current: null,248          });249        });250      });251    });252  });253  describe('enableSchedulerTracing disabled', () => {254    beforeEach(() => loadModules({enableSchedulerTracing: false}));255    it('should return the value of a traced function', () => {256      expect(257        SchedulerTracing.unstable_trace('arbitrary', currentTime, () => 123),258      ).toBe(123);259    });260    it('should return the value of a wrapped function', () => {261      let wrapped;262      SchedulerTracing.unstable_trace('arbitrary', currentTime, () => {263        wrapped = SchedulerTracing.unstable_wrap(() => 123);264      });265      expect(wrapped()).toBe(123);266    });267    it('should return null for traced interactions', () => {268      expect(SchedulerTracing.unstable_getCurrent()).toBe(null);269    });270    it('should execute traced callbacks', done => {271      SchedulerTracing.unstable_trace('some event', currentTime, () => {272        expect(SchedulerTracing.unstable_getCurrent()).toBe(null);273        done();274      });275    });276    it('should return the value of a clear function', () => {277      expect(SchedulerTracing.unstable_clear(() => 123)).toBe(123);278    });279    it('should execute wrapped callbacks', done => {280      const wrappedCallback = SchedulerTracing.unstable_wrap(() => {281        expect(SchedulerTracing.unstable_getCurrent()).toBe(null);282        done();283      });284      wrappedCallback();285    });...

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  const trace = await page.context().newTrace();7  await trace.start({ screenshots: true, snapshots: true });8  await page.click('text=Show more');9  await trace.stop({ path: 'trace.zip' });10  await browser.close();11})();

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  await page.unstable_trace('trace.zip');6  await browser.close();7})();

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  page.on('pageerror', err => {7    console.log(err);8  });9  await page.click('text=No thanks');10  await page.click('text=Sign in');11  await page.click('text=Sign in');12  await browser.close();13})();14    at assertExecutionContext (/Users/xxxxxx/xxxxxx/xxxxxx/xxxxxx/xxxxxx/node_modules/playwright/lib/server/frames.js:138:13)15    at Frame._click (/Users/xxxxxx/xxxxxx/xxxxxx/xxxxxx/xxxxxx/xxxxxx/node_modules/playwright/lib/server/frames.js:444:5)16    at Frame.click (/Users/xxxxxx/xxxxxx/xxxxxx/xxxxxx/xxxxxx/xxxxxx/node_modules/playwright/lib/server/frames.js:433:21)17    at Page.click (/Users/xxxxxx/xxxxxx/xxxxxx/xxxxxx/xxxxxx/xxxxxx/node_modules/playwright/lib/server/page.js:1010:31)18    at main (/Users/xxxxxx/xxxxxx/xxxxxx/xxxxxx/xxxxxx/xxxxxx/test.js:15:10)19    at processTicksAndRejections (internal/process/task_queues.js:95:5)20await page.waitForLoadState('networkidle');21await page.waitForNavigation();22await page.waitForLoadState('load');23await page.waitForLoadState('domcontentloaded');24await page.waitForLoadState('networkidle');

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch({ headless: false });4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.screenshot({ path: `example.png` });7  await browser.close();8})();

Using AI Code Generation

1const playwright = require('playwright');2(async () => {3  const browser = await playwright.chromium.launch();4  const page = await browser.newPage();5  const trace = await page._trace.start({ screenshots: true, snapshots: true });6  await page.click('text=Get Started');7  await page.close();8  await browser.close();9  await trace.stop({ path: 'trace.zip' });10})();

Using AI Code Generation

1const { chromium } = require("playwright");2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  const trace = await page._context._browserContext._browser._channel.unstable_trace({ screenshots: true, snapshots: true });6  await page.click("text=Get started");7  await page.close();8  await browser.close();9  const result = await trace.stop();10  console.log(result);11})();12    at ChannelOwner._wrapApiCall (/Users/XXX/Projects/playwright/trace/node_modules/playwright/lib/protocol/channels.js:411:20)13    at ChannelOwner._wrapApiCall (/Users/XXX/Projects/playwright/trace/node_modules/playwright/lib/protocol/channels.js:413:20)14    at ChannelOwner._wrapApiCall (/Users/XXX/Projects/playwright/trace/node_modules/playwright/lib/protocol/channels.js:413:20)15    at ChannelOwner._wrapApiCall (/Users/XXX/Projects/playwright/trace/node_modules/playwright/lib/protocol/channels.js:413:20)16    at ChannelOwner._wrapApiCall (/Users/XXX/Projects/playwright/trace/node_modules/playwright/lib/protocol/channels.js:413:20)17    at ChannelOwner._wrapApiCall (/Users/XXX/Projects/playwright/trace/node_modules/playwright/lib/protocol/channels.js:413:20)18    at ChannelOwner._wrapApiCall (/Users/XXX/Projects/playwright/trace/node_modules/playwright/lib/protocol/channels.js:413:20)19    at ChannelOwner._wrapApiCall (/Users/XXX/Projects/playwright/trace/node_modules/playwright/lib/protocol/channels.js:413:20)20    at ChannelOwner._wrapApiCall (/Users/XXX/Projects/playwright/trace/node_modules/playwright/lib/protocol/channels.js:413:20)

Using AI Code Generation

1const playwright = require('playwright');2const trace = require('playwright/lib/trace/recorder');3const fs = require('fs');4(async () => {5  const browser = await playwright.chromium.launch();6  const context = await browser.newContext();7  const page = await context.newPage();8  const tracePath = 'trace.json';9  await trace.start(page, tracePath);10  await trace.stop(page);11  await browser.close();12})();13{14  "metadata": {15  },16    {17      "page": {18        "frame": {19        }20      },21        {22          "data": {23          }24        },25        {26          "data": {27            "responseHeaders": {28              "content-type": "text/html; charset=utf-8",29              "x-xss-protection": "1; mode=block"30            },31          }32        },33        {34          "data": {

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch({ headless: false });4  const context = await browser.newContext();5  await context.tracing.start({ screenshots: true, snapshots: true });6  const page = await context.newPage();7  await context.tracing.stop({ path: 'trace.zip' });8  await browser.close();9})();

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