I will be so glad when we stop supporting old PHP

actually we could right now. but I don't like to introduce that change in
a feature branch.

make use of exception wrapper in io test

Handle breaking class rename in PHPUnit 6.0

See for reference #1837 and sebastianbergmann/phpunit#2503

PHPUnit 6 now only supports namespaced classes

However those classes are already supported in PHP 5.7 so we can switch
to them without breaking backward-compatibility.

mysql 4.11+ hash is supposed to be upper case. fixes #1825

fixed typo in function name

changed embedSVG to inlineSVG and make it return contents

This makes it more flexible to use on the expense of needing one echo
more.

more cleanup in embedSVG

now comments and line breaks between tags are removed

Add test to verify that no error occurs

Without the change in issue #1801, or commit
1b26d16d86d6a898466211861adc1dff2286da2b respectively, this adjusted
test would throw an error since it would att

Add test to verify that no error occurs

Without the change in issue #1801, or commit
1b26d16d86d6a898466211861adc1dff2286da2b respectively, this adjusted
test would throw an error since it would attempt to use another array as
an array-key.

The fact that the test passes without error means that the bug is fixed.

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Fix media changelog test that did not expect delayed changelog entry

What happened was that in the place of the new `waitForTick`-call an
actual delay happened and therefore the file modification ti

Fix media changelog test that did not expect delayed changelog entry

What happened was that in the place of the new `waitForTick`-call an
actual delay happened and therefore the file modification time and the
deletion entry were two different points in time, resulting in random
test failures. The test enforces this now, the condition to test has
been adjusted.

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Add testing of delayed writes to the remote API

Added more testing to ensure correct handling of delayed writes

refactor: handle default options w/ other optgroups

fix: ensure that there is only 1 selected option

Multiple selected option would not be valid HTML.

Add test for optgroup support in selects

use waitForTick in all our tests

refactored the remote API tests

Now each command is checked within it's own test on a completely clean
install. Hopefuly this also takes care of the flaky test behavior seen
at Travis occasionally.

do not static cache useheading during tests

This took me way to long to figure out. The useheading setting was
cached in a static variable which is fine usually as it doesn't change
during a single

do not static cache useheading during tests

This took me way to long to figure out. The useheading setting was
cached in a static variable which is fine usually as it doesn't change
during a single request. But in testing we want to change it often.

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fix problems with header that look falsy. fixes #1770

fix test test_deletedimage

add deleted media test

fix tests for newer PHPUnit. fixes #1643

getMock is deprecated in new PHPUnit versions and createMock is the
recommended replacement. However that one is not available in older
PHPUnit releases. Sin

fix tests for newer PHPUnit. fixes #1643

getMock is deprecated in new PHPUnit versions and createMock is the
recommended replacement. However that one is not available in older
PHPUnit releases. Since we still support older PHP releases we have to
support older PHPUnit releases as well.

This add some compatibility functions to our TestCase class and replaces
all calls to getMock. Tested with PHPUnit 4.6.6 and 5.5.0.

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filesize_h might not be used in HTML content only #1622

Using an HTML entitiy might be problematic in non HTML renderers or when
the output is escaped again.

try to fix flaky test by clearing the statcache

run HTTP tests against EU server

this hopefully helps with recent problems of spradically failing tests.