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test: postBody for intercepted fetch FormData with Blob (#31321)

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Fixes https://github.com/microsoft/playwright/issues/24077
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Yury Semikhatsky 2024-06-14 13:30:22 -07:00 committed by GitHub
parent fce2874796
commit 76ba94bce6
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36
tests/page/page-request-intercept.spec.ts
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@ -281,3 +281,39 @@ it('should fulfill popup main request using alias', async ({ page, server, isEle
]);
await expect(popup.locator('body')).toHaveText('hello');
});
it('request.postData is not null when fetching FormData with a Blob', {
annotation: { type: 'issue', description: 'https://github.com/microsoft/playwright/issues/24077' }
}, async ({ server, page, browserName, isElectron }) => {
it.fixme(isElectron, 'error: Browser context management is not supported.');
it.fixme(browserName === 'webkit', 'The body is empty in WebKit when intercepting');
await page.goto(server.EMPTY_PAGE);
await page.setContent(`
<script>
function doStuff() {
const formData = new FormData();
formData.append('file', new Blob(["hello"], { type: "text/plain" }));
fetch('/upload', {
method: 'POST',
body: formData
});
}
</script>
<body>
<button onclick="doStuff()" data-testid="click-me">Click me!</button>
</body>`);
let resolvePostData;
const postDataPromise = new Promise<string>(resolve => resolvePostData = resolve);
await page.route(server.PREFIX + '/upload', async (route, request) => {
expect(request.method()).toBe('POST');
resolvePostData(await request.postData());
await route.fulfill({
status: 200,
body: 'ok',
});
});
await page.getByTestId('click-me').click();
const postData = await postDataPromise;
expect(postData).toContain('Content-Disposition: form-data; name="file"; filename="blob"');
expect(postData).toContain('\r\nhello\r\n');
});