storybook/docs/snippets/angular/documentscreen-story-msw-graphql-query.ts.mdx

```ts
// YourPage.stories.ts

import { Meta, moduleMetadata, Story } from '@storybook/angular';

import { CommonModule } from '@angular/common';
import { HttpClientModule } from '@angular/common/http';

import { graphql } from 'msw';

import { DocumentScreen } from './YourPage.component';
import { DocumentList } from './DocumentList.component';
import { DocumentHeader } from './DocumentHeader.component';
import { PageLayout } from './PageLayout.component';

import { MockGraphQLModule } from './mock-graphql.module';

export default {
  /* 👇 The title prop is optional.
   * See https://storybook.js.org/docs/7.0/angular/configure/overview#configure-story-loading
   * to learn how to generate automatic titles
   */
  title: 'DocumentScreen',
  component: DocumentScreen,
  decorators: [
    moduleMetadata({
      declarations: [DocumentList, DocumentHeader, PageLayout],
      imports: [CommonModule, HttpClientModule, MockGraphQLModule],
    }),
  ],
} as Meta;

//👇The mocked data that will be used in the story
const TestData = {
  user: {
    userID: 1,
    name: 'Someone',
  },
  document: {
    id: 1,
    userID: 1,
    title: 'Something',
    brief: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit.',
    status: 'approved',
  },
  subdocuments: [
    {
      id: 1,
      userID: 1,
      title: 'Something',
      content:
        'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.',
      status: 'approved',
    },
    {
      id: 2,
      userID: 1,
      title: 'Something else',
      content:
        'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.',
      status: 'awaiting review',
    },
    {
      id: 3,
      userID: 2,
      title: 'Another document',
      content:
        'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.',
      status: 'approved',
    },
    {
      id: 4,
      userID: 2,
      title: 'Something',
      content:
        'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.',
      status: 'approved',
    },
  ],
};

export const MockedSuccess: Story = {
  parameters: {
    msw: [
      graphql.query('AllInfoQuery', (req, res, ctx) => {
        return res(ctx.data(TestData));
      }),
    ],
  },
};

export const MockedError: Story = {
  parameters: {
    msw: [
      graphql.query('AllInfoQuery', (req, res, ctx) => {
        return res(
          ctx.delay(800),
          ctx.errors([
            {
              message: 'Access denied',
            },
          ])
        );
      }),
    ],
  },
};
```