*Note: We have started a new series sharing a module, weekly once. Please
share your feedback. -- ChennaiPy*
*Module*: pynguin
*Installation*: pip install pynguin
*About*:
Pynguin, the PYthoN General UnIt test geNerator, is a tool that allows
developers to generate unit tests automatically.
Sample Source Code:
def triangle(x: int, y: int, z: int) -> str:
if x == y == z:
return "Equilateral triangle"
elif x == y or y == z or x == z:
return "Isosceles triangle"
else:
return "Scalene triangle"
*Prerequisite*:
To help prevent harming the system that runs Pynguin, its CLI will
immediately abort unless the environment variable PYNGUIN_DANGER_AWARE is
set.
ChennaiPy $ export PYNGUIN_DANGER_AWARE=1
*Execution*:
ChennaiPy $ pynguin --project_path ./ --output-path pynguin_output
--module-name pynguin_demo
ChennaiPy $ cd pynguin_output
pynguin_output $ ls -rtl
total 16
-rw-r--r-- 1 dev staff 879 29 May 23:26 test_pynguin_demo.py
-rw-r--r-- 1 dev staff 38 29 May 23:26 test_pynguin_demo_failing.py
Output:
*### Below testcases are automatically created by the module, with
different values passed*
# Automatically generated by Pynguin.
import pynguin_demo as module_0
def test_case_0():
int_0 = -156
int_1 = -5206
str_0 = module_0.triangle(int_1, int_0, int_1)
assert str_0 == 'Isosceles triangle'
str_1 = module_0.triangle(int_0, int_0, int_0)
assert str_1 == 'Equilateral triangle'
def test_case_1():
int_0 = 1038
int_1 = 5772
str_0 = module_0.triangle(int_0, int_1, int_1)
assert str_0 == 'Isosceles triangle'
def test_case_2():
int_0 = -785
int_1 = 3730
int_2 = -1030
str_0 = module_0.triangle(int_1, int_1, int_2)
assert str_0 == 'Isosceles triangle'
str_1 = module_0.triangle(int_0, int_0, int_0)
assert str_1 == 'Equilateral triangle'
def test_case_3():
int_0 = 1910
int_1 = 899
int_2 = None
str_0 = module_0.triangle(int_0, int_1, int_2)
assert str_0 == 'Scalene triangle'
*Reference*: https://pynguin.readthedocs.io/en/latest/user/quickstart.html
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