GHOP task #129: Write tests for path module

The GHOP task associated with this issue can be found at:
http://code.google.com/p/google-highly-open-participation-drupal/issues/...

Two more things beside chxs' notes:
- I prefer using assertText function when you look for plain text on a page (title,body, anything that is visible), assertWantedRaw is used if you want to assert something in source code i.e. "Page simpletest_XRs4 has been updated."
- after you change the alias, you could also check that old alias produces "page not found" error

Summary of changes:

• Added drupalModuleEnable().
• Removed t().
• Removed getNewAlias().
• Checks for: The path is already in use. and The alias %alias is already in use in this language. instead of checking see if alias call would return that page.
• Changed test location and removed _simpletest() hook.
• Changed raw tests to text.
• Checks to make sure that previous alias no longer works.

A few notes:

• I used the page_creation.test as an example and it appears to use both assertWantedRaw() and t() for the reason that t() adds <em></em> around inserted variables. To implement the check for the message stating that the alias is already in use I have to do the same thing and thus have to leave a assertWantedRaw() in my test case.

  $this->assertWantedRaw(t('Your %post has been created.', array ('%post' => 'Page')), 'Page created');

• The placement of tests and the simpletest hook are rather confusing since I was pointed to: http://www.lullabot.com/articles/introduction-unit-testing

I believe this test case includes all the requested changes.

Great work. You have made all the changes we asked for and I consider your task finished. I have two minor suggestions but this is really nitpicking

1. You can check that when alias is changed you really get page not found with sth like this
   $this->assertTitle(new PatternExpectation('/Page not found/'), 'We get page not found error');
2. as chx said user input is not run through t() function but warnings and notices that drupal outputs usually are i.e. t('The path is already in use.')

I added this small changes to the test so you don't need to bother with them and also committed this test to cvs.

Oh yeah I guess this is fixed now.

Regarding the hook confusion. You only need simpletest hook if you write tests for your own module (non core). Core tests are kept in simpletest module and are searched for in simpletest/tests dir. So any file that ends with ".test" in simpletest/tests is included automatically.

Thanks for clearing that up.