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import type { StoryObj } from '@storybook/web-components';
import { expect, within } from '@storybook/test';
import '../custom-element/custom-element.js';
import '../custom-element/http-request.js';
import {handlers} from '../mocks/handlers.ts';
type TProps = { title: string; slice: string; url: string; };
const defs: TProps =
{ title: ''
, slice: 'page'
, url: '/pokemon?limit=6'
};
type Story = StoryObj<TProps>;
function sleep(ms: number) { return new Promise((resolve) => setTimeout(resolve, ms)); }
function Template({title, slice, url}: TProps)
{
return `
<fieldset>
<legend>${title}</legend>
<custom-element>
<template><!-- wrapping into template to prevent images loading within DCE declaration -->
<http-request
url="{ //slice/url }"
slice="${slice}"
></http-request>
<input placeholder="URL for fetch" slice="url" value="{ //url ?? '${ url }' }"/>
<button>set</button>
<button slice="url" slice-value="''" slice-event="click">set blank</button>
<button slice="url" slice-value="'/reflect'" slice-event="click">/reflect</button>
<button slice="url" slice-value="'/pokemon'" slice-event="click">/pokemon</button>
<button slice="url" slice-value="'/pokemon?limit=6'" slice-event="click">/pokemon?limit=6</button>
<button slice="url" slice-value="'/pokemon?limit=3'" slice-event="click">/pokemon?limit=3</button>
<p>Pokemon Count: {count(/datadom/slice/${slice}//results)}</p>
<if test="count(/datadom/slice/${slice}//results) < 0">
<h3>loading...</h3>
</if>
<for-each select="/datadom/slice/${slice}//results">
<variable name="pokeid"
select="substring-before( substring-after( @url, 'https://pokeapi.co/api/v2/pokemon/'),'/')"
></variable>
<button>
<value-of select='@name'/>
</button>
</for-each>
<for-each select="//slice/${slice}/value/*">
<ul>
<var data-testid="request-section"><value-of select='name(.)'/></var>
<for-each select="@*">
<div>
<var>@{local-name(.)}</var>
=
<code data-testid="attr-{local-name(.)}">{.}</code>
</div>
</for-each>
</ul>
</for-each>
</template>
</custom-element>
</fieldset>
`;
}
const meta =
{ title: 'http-request'
, render: (args: TProps) => Template(args)
, renderPlay: async function renderPlay(story: StoryObj)
{
// @ts-ignore
document.body.innerHTML = ( story.render ? story : meta ).render({...defs, ...story.args});
await new Promise(resolve => setTimeout(async () =>
{
// @ts-ignore
await story.play({canvasElement: document.body.firstElementChild as HTMLElement});
resolve(0);
}, 0));
},
};
export default meta;
export const Demo:Story =
{ args : {title: 'url and slice',url:'/pokemon?limit=4'}
, play: async ({canvasElement}) =>
{
const canvas = within(canvasElement);
await canvas.findByText(Demo.args!.title as string);
expect( await canvas.findByText('bulbasaur')).toBeInTheDocument();
expect( await canvas.findByText('Pokemon Count: 4')).toBeInTheDocument(canvasElement);
},
parameters: { msw: handlers },
};
export const UrlChange:Story =
{ args : {title: 'url change',url:''}
, play: async ({canvasElement}) =>
{
const canvas = within(canvasElement);
await canvas.findByText(UrlChange.args!.title as string);
const byText = txt => canvas.getByText(txt)
const requestElement = canvasElement.querySelector('http-request')
, urlAttr = () => requestElement.getAttribute('url');
expect( byText('Pokemon Count: 0') ).toBeInTheDocument();
expect( urlAttr() ).toEqual('');
byText( '/pokemon' ).click();
await sleep(100);
expect( urlAttr() ).toEqual('/pokemon');
expect( byText('Pokemon Count: 6') ).toBeInTheDocument();
byText( '/pokemon?limit=6' ).click();
await sleep(100);
expect( urlAttr() ).toEqual('/pokemon?limit=6');
expect( byText('Pokemon Count: 6') ).toBeInTheDocument();
byText( '/pokemon?limit=3' ).click();
await sleep(100);
expect( urlAttr() ).toEqual('/pokemon?limit=3');
expect( byText('Pokemon Count: 3') ).toBeInTheDocument();
byText( 'set blank' ).click();
await sleep(100);
expect( urlAttr() ).toEqual('');
expect( byText('Pokemon Count: 0') ).toBeInTheDocument();
},
parameters: { msw: handlers },
};
export const Http404:Story =
{ args : {title: 'http-request with error', url: '/404'}
, play: async ({canvasElement}) =>
{ const canvas = within(canvasElement)
, $t = async testId=> (await canvas.findByTestId(testId)).textContent;
await canvas.findByText(Http404.args!.title as string);
await sleep(200);
expect( await $t('attr-status')).to.include('404');
},
parameters: { msw: handlers },
};
export const LifecycleInitialized:Story =
{ args: { title: 'http-request with delayed .5 seconds response', url: '/noreturn'}
, play: async ({canvasElement}) =>
{ const canvas = within(canvasElement);
await canvas.findByText(LifecycleInitialized.args!.title as string);
expect( await canvas.findByText('request') ).toBeInTheDocument(); // after DCE initiated
expect( canvas.queryByText('response') ).toBe(null); // response is not available
// wait while response appears ~ 0.5 seconds
expect( await canvas.findByText('response') ).toBeInTheDocument(); // only after delay is shown
expect( await canvas.findByText('bulbasaur') ).toBeInTheDocument();
expect( await canvas.findByText('Pokemon Count: 6') ).toBeInTheDocument();
},
parameters: { msw: handlers },
};
export const RequestResponseHeaders:Story =
{ args: { title: 'http-request headers and response status and headers', url: '/reflect'}
, play: async ({canvasElement}) =>
{ const canvas = within(canvasElement);
await canvas.findByText(RequestResponseHeaders.args!.title as string);
await sleep(200);
// see response made by /reflect handler
const te = await canvas.findByTestId('section-request-attr-x-test');
expect( te ).toBeInTheDocument();
expect( te.textContent.trim() ).toEqual('testing');
const t1 = await canvas.findByTestId('section-response-attr-x-test');
expect( t1 ).toBeInTheDocument();
expect( t1.textContent.trim() ).toEqual('reflected-testing');
const tAdded = await canvas.findByTestId('section-response-attr-x-added');
expect( tAdded ).toBeInTheDocument();
expect( tAdded.textContent.trim() ).toEqual('abc');
},
parameters: { msw: handlers },
render : ({url,title}) => `
<fieldset>
<legend>${title}</legend>
<p> <b>request</b> headers are populated into dedicated <b>slice/request/headers</b></p>
<custom-element tag="headers-demo" >
<template>
<http-request
url="${url}"
slice="request_slice"
type="text"
mode="cors"
header-x-test="testing"
></http-request>
Content of <code>//slice/request_slice</code> is filled by <b>request</b> and <b>response</b>
from <code>${url}</code>
<h3>Samples</h3>
<table>
<tr><th>//slice/request_slice/value/request/headers/@mode</th>
<td><value-of select="//slice/request_slice/value/request/@mode"/></td></tr>
<tr><th>//slice/request_slice/value/response/headers/@content-type</th>
<td><value-of select="//slice/request_slice/value/response/headers/@content-type"/></td></tr>
<tr><th>//slice/request_slice/value/response/@status</th>
<td><value-of select="//slice/request_slice/value/response/@status"/></td></tr>
</table>
<for-each select="//slice/request_slice/value/*">
<xsl:variable name="section">{name(.)}</xsl:variable>
<ul date-testid="section-{$section}">
<b data-testid="request-section"><value-of select='name(.)'/></b>
<for-each select="@*">
<div>
<var >@{local-name(.)}</var>
=
<code data-testid="section-{$section}-prop-{local-name(.)}">{.}</code>
</div>
</for-each>
<for-each select="*">
<div>
<b data-testid="section-deep"><value-of select='local-name(.)'/></b>
<ul>
<for-each select="@*">
<li>
<var data-testid="section-attribute">@{local-name(.)}</var>
=
<code data-testid="section-{$section}-attr-{local-name(.)}">{.}</code>
</li>
</for-each>
<code><value-of select='.'/></code>
</ul>
</div>
</for-each>
</ul>
</for-each>
</template>
</custom-element>
<headers-demo></headers-demo>
</fieldset>
`
};
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