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# coding: spec
# You ensure the file has the coding: spec comment as the first line as above
# and that nose-of-yeti has registered the spec codec
# The codec will then turn what you have written into python code that can be
# executed.
# The test can then be specified using describes and its
from unittest import TestCase
def test_is_possible_to_add_numbers ():
assert 1 +1 ==2
def test_is_possible_to_add_the_number_three (three =3 ):
# Contrived example of default arguments
assert 1 +three ==4
class TestPythonMathematics :
# ^^ is replaced with "class test_Python_Mathematics:"
def test_is_be_able_to_add_two_numbers (self ):
# ^^ is replaced with "def test_is_able_to_add_two_numbers(self):"
assert 2 +3 ==5
assert 2 +0 ==2
def test_cant_divide_by_zero (self ):
try :
2 /0
assert False ,"Expected an error"
except ZeroDivisionError :
pass
# We can also define a class for the describes
# Either when we create the tokeniser and register it
# Or inside the spec file itself, per describe
class DifferentBase (TestCase ):
def x (self ):
return 5
class TestInheritance (DifferentBase ):
def test_has_an_x_equal_to_5 (self ):
self .assertEqual (self .x (),5 )
# You can even nest describes
class TestNumbers (TestCase ):
def setUp (self ):
__import__ ("noseOfYeti").tokeniser .TestSetup (super ()).sync_before_each ();self .number1 =1
self .number2 =2
def test_has_number1_as_1 (self ):
self .assertEqual (self .number1 ,1 )
class TestNumbers_TestingNumber3 (TestNumbers ):
def setUp (self ):
__import__ ("noseOfYeti").tokeniser .TestSetup (super ()).sync_before_each ();self .number3 =3
def test_has_number1_from_the_lower_level_describe (self ):
self .assertEqual (self .number1 ,1 )
def test_also_has_number3 (self ):
self .assertEqual (self .number3 ,3 )
class TestNumbers_TestingNumber3_LetsChangeANumber (TestNumbers_TestingNumber3 ):
def setUp (self ):
__import__ ("noseOfYeti").tokeniser .TestSetup (super ()).sync_before_each ();self .number1 =4
def test_changed_number1_but_kept_others (self ):
self .assertEqual (self .number1 ,4 )
self .assertEqual (self .number2 ,2 )
self .assertEqual (self .number3 ,3 )
TestPythonMathematics .is_noy_spec =True # type: ignore
TestInheritance .is_noy_spec =True # type: ignore
TestNumbers .is_noy_spec =True # type: ignore
TestNumbers_TestingNumber3 .is_noy_spec =True # type: ignore
TestNumbers_TestingNumber3_LetsChangeANumber .is_noy_spec =True # type: ignore
TestPythonMathematics .test_cant_divide_by_zero .__testname__ ="can't divide by zero" # type: ignore
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