Drop '__main__' from tests

Direct test invocation doesn't work reliably across all environments.
Using 'nosetests $FILE' is much more efficient.

test/test_bootstrap3.py

@@ -24,6 +24,3 @@ find_and_load_cases(Bootstrap3ThemeTestCase,
                     less_dir='bootstrap3/less',
                     less_files=['theme'],
                     css_dir='bootstrap3/css')
-
-if __name__ == "__main__":
-    unittest.main()

test/test_color.py

@@ -1,12 +1,12 @@
 """
-    lesscpy tests.
+    lesscpy color tests.
 """
 import unittest
+
 from lesscpy.lessc import color
 
 
 class TestLessColor(unittest.TestCase):
-
     def setUp(self):
         self.color = color.Color()
 
@@ -182,6 +182,3 @@ class TestLessColor(unittest.TestCase):
 
         ]:
             self.assertEqual(test(c, p), v, v)
-
-if __name__ == '__main__':
-    unittest.main()

test/test_expression.py

@@ -1,4 +1,8 @@
+"""
+    lesscpy expression tests.
+"""
 import unittest
+
 from lesscpy.plib.expression import Expression
 
 
@@ -52,7 +56,3 @@ class TestExpression(unittest.TestCase):
         ]:
             e = Expression(test[:3])
             self.assertEqual(test[3], e.parse(None), test)
-
-
-if __name__ == '__main__':
-    unittest.main()

test/test_identifier.py

@@ -1,4 +1,5 @@
 import unittest
+
 from lesscpy.lessc.scope import Scope
 from lesscpy.plib.identifier import Identifier
 
@@ -98,6 +99,3 @@ class TestIdentifier(unittest.TestCase):
             t, r = i
             id = Identifier(t, 0)
             self.assertEqual(id.parse(sc).fmt(fl), r, i)
-
-if __name__ == '__main__':
-    unittest.main()

test/test_issues.py

@@ -14,6 +14,3 @@ find_and_load_cases(IssuesTestCase,
                     less_dir='less/issues',
                     css_dir='css/issues',
                     css_minimized=False)
-
-if __name__ == "__main__":
-    unittest.main()

test/test_less.py

@@ -13,6 +13,3 @@ class LessTestCase(unittest.TestCase):
 find_and_load_cases(LessTestCase,
                     less_dir='less',
                     css_dir='css')
-
-if __name__ == "__main__":
-    unittest.main()

test/test_utility.py

@@ -1,4 +1,5 @@
 import unittest
+
 import lesscpy.lessc.utility as utility
 
 
@@ -102,7 +103,3 @@ class TestUtility(unittest.TestCase):
         self.assertEqual(3.0, test(10.0 / 3, 0))
         self.assertEqual(4, test(3.5))
         self.assertEqual(4, test(4.5))
-
-
-if __name__ == '__main__':
-    unittest.main()