@playwright/test (Playwright base)
    |
    v
base.fixture.ts (core fixtures)
    |
    +----> projects.fixture.ts
    +----> datasets.fixture.ts
    +----> tracing.fixture.ts
    +----> feedback-experiments-prompts.fixture.ts

import { test, expect } from '../../fixtures/projects.fixture';

test('Test name @tags', async ({ page, helperClient, createProjectApi }) => {
  // createProjectApi is the project name (string)
  // Project was created before this line runs
  // Project will be deleted after test completes (even on failure)
});

import { test, expect } from '../../fixtures/datasets.fixture';

test('Test name @tags', async ({ page, datasetsPage }) => {
  // datasetsPage is already navigated to the datasets page
  await datasetsPage.createDatasetByName('my-dataset');
});

import { test, expect } from '../../fixtures/projects.fixture';

test('Test name @tags', async ({ page, helperClient, createProjectApi }) => {
  const newName = 'updated_name';
  let nameUpdated = false;

  try {
    await helperClient.updateProject(createProjectApi, newName);
    nameUpdated = true;
    // ... verification ...
  } finally {
    // Manual cleanup because fixture doesn't know about the new name
    if (nameUpdated) {
      await helperClient.deleteProject(newName);
    }
  }
});

import { test, expect } from '../../fixtures/tracing.fixture';

test('Test name @tags', async ({ page, projectName, createTracesClient, tracesPage }) => {
  // At this point:
  // - A project named `projectName` exists
  // - 25 traces have been created in it
  // - tracesPage is ready to use (but needs navigation to the project first)
});