Remove unnecessary web server restarts in functional test cases

[Ryan J Ollos]

There are numerous calls to FunctionalTestEnvironment.restart that seem to be unnecessary. I'm not sure why they were needed, but the issue may have been fixed with [12258].

The proposed changes reduce the execution time on my machine from 170-180 seconds to < 150 seconds.

Proposed changes in log:rjollos.git:t11443. Tested on Ubuntu 13.04. Please test execution on additional platforms if you can.

For reference the result of test execution on 1.0-stable at r12430 is:

$ PYTHONPATH=. python -m trac.test
Ran 1647 tests in 270.404s

[Ryan J Ollos]

A few more changes:

• In the call to unittest.makeSuite, test is the default prefix so it doesn't need to be specified (at least for Python 2.5-2.7):

  Help on function makeSuite in module unittest.loader:
  
  makeSuite(testCaseClass, prefix='test', sortUsing=<built-in function cmp>, suiteClass=<class 'unittest.suite.TestSuite'>)
  

• Consistent calls to unittest.main in each test case module.

[Jun Omae]

Results of functional tests with the following environments:

		log:rjollos.git:t11443	1.0-stable r12440
CentOS 5 with ext3	Python 2.5	1068.505s	1115.442s
CentOS 6 with ext4	Python 2.6	314.240s	462.444s
Windows XP sp3	Python 2.5	547.047s	567.766s

[Ryan J Ollos]

Thanks for testing!

Committed to 1.0-stable in [12448] and merged to trunk in [12449].

[Ryan J Ollos]

Removed two more instances of default prefix in [12791], merged in [12792].