async def test_should_be_able_to_reset_selected_files_with_empty_file_list(
page: Page, server):
await page.set_content("<input type=file>")
page.once("filechooser",
lambda file_chooser: file_chooser.set_files(FILE_TO_UPLOAD))
file_length = 0
async with page.expect_file_chooser():
file_length = await page.eval_on_selector(
"input",
"""async picker => {
picker.click();
await new Promise(x => picker.oninput = x);
return picker.files.length;
}""",
)
assert file_length == 1
page.once("filechooser", lambda file_chooser: file_chooser.set_files([]))
async with page.expect_file_chooser():
file_length = await page.eval_on_selector(
"input",
"""async picker => {
picker.click();
await new Promise(x => picker.oninput = x);
return picker.files.length;
}""",
)
assert file_length == 0
async def test_should_accept_single_file(page: Page):
await page.set_content(
'<input type=file oninput="javascript:console.timeStamp()">')
async with page.expect_file_chooser() as fc_info:
await page.click("input")
file_chooser = await fc_info.value
assert file_chooser.page == page
assert file_chooser.element
await file_chooser.set_files(FILE_TO_UPLOAD)
assert await page.eval_on_selector("input",
"input => input.files.length") == 1
assert (await page.eval_on_selector(
"input", "input => input.files[0].name") == "file-to-upload.txt")
async def test_should_work_when_file_input_is_attached_to_dom(page: Page):
await page.set_content("<input type=file>")
async with page.expect_file_chooser() as fc_info:
await page.click("input")
file_chooser = await fc_info.value
assert file_chooser
