We have about a dozen export buttons. The most I can assert from a feature file today is that a toast appeared, which passed happily for two weeks while the export was returning an empty file.
Is there a download step anywhere? I cannot find one in the step library.
Accepted answer
No download step ships. There is an open issue with a proposed set — filename, size, content type, CSV row count — and none of it is written yet.
The base class gives you waitForDownload(), so a project step is short:
@When('I export the current view as CSV')
async exportCsv() {
const download = await this.waitForDownload(() =>
this.page.getByRole('button', { name: 'Export' }).click(),
);
this.lastExport = await download.path();
expect(download.suggestedFilename()).toContain('.csv');
}Then a Then step that reads the file and asserts on it.
Given what you described — a toast that passed while the file was empty — please assert on content and not just on the filename. A zero-byte report.csv satisfies every filename check you can write.
Minimum useful pair: a byte size above some floor, and a row count that matches something you know (the number of rows the UI was showing). The second one has caught genuine bugs for us twice, both times a filter that applied on screen and not in the export.
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