Protractor e2e test case for downloading pdf file
Solution 1
I can currently set download path location
Chrome
capabilities: {
'browserName': 'chrome',
'platform': 'ANY',
'version': 'ANY',
'chromeOptions': {
// Get rid of --ignore-certificate yellow warning
args: ['--no-sandbox', '--test-type=browser'],
// Set download path and avoid prompting for download even though
// this is already the default on Chrome but for completeness
prefs: {
'download': {
'prompt_for_download': false,
'default_directory': '/e2e/downloads/',
}
}
}
}
For remote testing you would need a more complex infrastructure like setting up a Samba share or network shared directory destination.
Firefox
var FirefoxProfile = require('firefox-profile');
var q = require('q');
[...]
getMultiCapabilities: getFirefoxProfile,
framework: 'jasmine2',
[...]
function getFirefoxProfile() {
"use strict";
var deferred = q.defer();
var firefoxProfile = new FirefoxProfile();
firefoxProfile.setPreference("browser.download.folderList", 2);
firefoxProfile.setPreference("browser.download.manager.showWhenStarting", false);
firefoxProfile.setPreference("browser.download.dir", '/tmp');
firefoxProfile.setPreference("browser.helperApps.neverAsk.saveToDisk", "application/vnd.openxmlformats-officedocument.wordprocessingml.document");
firefoxProfile.encoded(function(encodedProfile) {
var multiCapabilities = [{
browserName: 'firefox',
firefox_profile : encodedProfile
}];
deferred.resolve(multiCapabilities);
});
return deferred.promise;
}
Finally and maybe obvious, to trigger the download you click on the download link as you know, e.g.
$('a.some-download-link').click();
Solution 2
I needed to check the contents of the downloaded file (a CSV export in my case) against an expected result, and found the following to work:
var filename = '/tmp/export.csv';
var fs = require('fs');
if (fs.existsSync(filename)) {
// Make sure the browser doesn't have to rename the download.
fs.unlinkSync(filename);
}
$('a.download').click();
browser.driver.wait(function() {
// Wait until the file has been downloaded.
// We need to wait thus as otherwise protractor has a nasty habit of
// trying to do any following tests while the file is still being
// downloaded and hasn't been moved to its final location.
return fs.existsSync(filename);
}, 30000).then(function() {
// Do whatever checks you need here. This is a simple comparison;
// for a larger file you might want to do calculate the file's MD5
// hash and see if it matches what you expect.
expect(fs.readFileSync(filename, { encoding: 'utf8' })).toEqual(
"A,B,C\r\n"
);
});
I found Leo's configuration suggestion helpful for allowing the download to be saved somewhere accessible.
The 30000ms timeout is the default, so could be omitted, but I'm leaving it in as a reminder in case someone would like to change it.
Solution 3
The solutions above would not work for remote browser testing, e.g. via BrowserStack. An alternative solution, just for Chrome, could look like this:
if ((await browser.getCapabilities()).get('browserName') === 'chrome') {
await browser.driver.get('chrome://downloads/');
const items =
await browser.executeScript('return downloads.Manager.get().items_') as any[];
expect(items.length).toBe(1);
expect(items[0].file_name).toBe('some.pdf');
}
Solution 4
it could be the test for checking href attribute like so:
var link = element(by.css("a.pdf"));
expect(link.getAttribute('href')).toEqual('someExactUrl');
user3061796
Updated on December 30, 2021Comments
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user3061796 over 2 years
Can anyone tell me how to write test case for a link to download pdf file using jasmine framework ? Thanks in advance.
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Leo Gallucci over 9 yearsI'm glad my answer helped! :) I also ended up writing a helper
function waitFileExists(fileAbsPath)
;) -
andrepm over 9 yearsHello Leo, i'm trying to set a default path location for Chrome, but apparently your solution didn't worked for me.
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Rogério Peixoto about 8 yearswhat about phantomjs?
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rohitkadam19 almost 8 years@LeoGallucci With above code, Firefox doesn't spawn and no errors. But if I use browserName:'firefox' in export.config, it opens firefox successfully. What could be reason? Thanks!
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Leo Gallucci almost 8 yearsYes, of course if you want to use Firefox you need to set browserName:'firefox'
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Nick over 7 years@LeoGallucci I would need to use 1 config file and pass browserName as parameter how can i achieve this, i see for 'FIREFOX' "getMultiCapabilities" is used and for 'CHROME' "capabilities" is used. help would be greatly appreciated.
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Bruno Soko over 7 years@LeoGallucci can you please share what you did in the
waitFileExists(fileAbsPath)
? are you on that method working to get form thefileAbsPath
so it can work on any computer? -
Leo Gallucci over 7 yearsWhat do you mean, the code is right up there, see "Wait until the file has been downloaded."
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Jeremy Kahan over 7 yearsHas anyone had success developing the same for Internet Explorer?