Fails at unit tests!

C:\GitHub\robotframework-selenium2library\test>python run_tests.py python firefox
Running unit tests
++.......................E...........................................................................
++======================================================================
ERROR: test_find_by_partial_link_text (locators.test_elementfinder.ElementFinderTests)
++----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\GitHub\robotframework-selenium2library\test\unit\locators\test_elementfinder.py", line 252, in test_find_by_partial_link_
text
result = finder.find(browser, "partial link=my link")
File "C:\GitHub\robotframework-selenium2library\test..\src\Selenium2Library\locators\elementfinder.py", line 28, in find
raise ValueError("Element locator with prefix '" + prefix + "' is not supported")
ValueError: Element locator with prefix 'partial link' is not supported

++----------------------------------------------------------------------
Ran 99 tests in 0.203s

FAILED (errors=1)

1 unit tests failed - not running acceptance tests!

lina1 submitted the code for this test in a different branch than #308 which contains the code this test is for. FYI, lina1, if you commit to the same branch you have a pull request for, it is automatically added to the pull request.
Thank you for submitting this.