run files_external owncloud tests with owncloud 10

[patrickjahns]

Description

Execute files_external tests with owncloud

This PR currently will fail for testCheckUpdate

core/tests/lib/Files/Storage/Storage.php

Lines 326 to 336 in 92b658a

	public function testCheckUpdate() {
	if ($this->instance instanceof \OC\Files\Storage\Wrapper\Wrapper) {
	$this->markTestSkipped('Cannot test update check on wrappers');
	}
	$textFile = \OC::$SERVERROOT . '/tests/data/lorem.txt';
	$watcher = $this->instance->getWatcher();
	$watcher->setPolicy(Watcher::CHECK_ALWAYS);
	$this->instance->file_put_contents('/lorem.txt', file_get_contents($textFile));
	$this->assertTrue($watcher->checkUpdate('/lorem.txt'), 'Update detected');
	$this->assertFalse($watcher->checkUpdate('/lorem.txt'), 'No update');
	}

Reason:
We compare local cached "permissions" with sharePermissions from remote:

return $sharePermissions !== $cachedData['permissions'];

https://github.com/owncloud/core/blob/master/lib/private/Files/Storage/DAV.php#L781

Screenshot from data tracked down in xdebug

I am unsure how {http://open-collaboration-services.org/ns}share-permissions correlates with the cached permissions field.
But it seems we do not cache it anywhere? @PVince81

Motivation and Context

Jenkins 🔫

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[patrickjahns]

@DeepDiver1975
assigned you to help with this

[patrickjahns]

@micbar
As discussed in person right now - when migrating webdav testing over to using a ownCloud 10 backend I stumpled upon this issue. This might be related to the case you are currently investigating

[PVince81]

issue created: #34735

I'd be surprised if the OC and SFTP fail as they used to pass a while ago as far as I remember

[micbar]

@patrickjahns is this still needed?

What are the next steps?

[patrickjahns]

Similar issue documented by QA here #35660

[DeepDiver1975]

As discussed in #35777 the master branch will from now on hold the ownCloud 10 codebase.

This PR targetted ownCloud 11 which is postponed to a far distant future.

Because of that I'm closing this PR and kindly ask you to re-submit this PR in a few days.

Thanks a lot for your patience