Python assert_changes Examples

Example #1

File: test.py Project: zacharyvoase/assert_changes

 def unacceptable_change():
     value = 'AbcDef'
     with assert_changes(
             lambda: value,
             cmp=lambda old, new: old.lower() == new.lower()):
         value = 'GhiJkl'

Example #2

File: test.py Project: zacharyvoase/assert_changes

 def no_change():
     value = 123
     with assert_changes(lambda: value, new=lambda old: old + 1):
         pass

Example #3

File: test.py Project: zacharyvoase/assert_changes

 def test_passes_if_cmp_returns_True(self):
     value = 'AbcDef'
     with assert_changes(lambda: value,
                         cmp=lambda old, new: old.lower() == new.lower()):
         value = 'aBCdEF'

Example #4

File: test.py Project: zacharyvoase/assert_changes

 def test_passes_if_equal_to_new(self):
     value = 123
     with assert_changes(lambda: value, new=lambda old: old + 1):
         value += 1

Example #5

File: test.py Project: zacharyvoase/assert_changes

 def unacceptable_change():
     value = 'AbcDef'
     with assert_changes(lambda: value,
                         cmp=lambda old, new: old.lower() == new.lower()):
         value = 'GhiJkl'

Example #6

File: test.py Project: zacharyvoase/assert_changes

 def test_passes_if_cmp_returns_True(self):
     value = 'AbcDef'
     with assert_changes(lambda: value,
                         cmp=lambda old, new: old.lower() == new.lower()):
         value = 'aBCdEF'

Example #7

File: test.py Project: zacharyvoase/assert_changes

 def no_change():
     value = 123
     with assert_changes(lambda: value, new=lambda old: old + 1):
         pass

Example #8

File: test.py Project: zacharyvoase/assert_changes

 def test_passes_if_equal_to_new(self):
     value = 123
     with assert_changes(lambda: value, new=lambda old: old + 1):
         value += 1