Merge pull request #77 from williangl/master

Adding cli_calculator on project

README.md

@@ -55,6 +55,7 @@ So far, the following projects have been integrated to this repo:
 |[Youtube video downloader](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/Youtube_Video_Downloader)|[Christopher He](https://github.com/hecris)|
 |[Zabbix API](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/zabbix_api)|[msg4sunny](https://github.com/msg4sunny)|
 |[Zip password cracker](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/zip_password_cracker)|[umar abdullahi](https://github.com/umarbrowser)|
+|[CLI Calculator](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/cli_calculator)|[Willian GL](https://github.com/williangl) |
 |[Find PhoneNumber in String](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/Find-PhoneNumber-in-String)|[Austin Zuniga](https://github.com/AustinZuniga)|
 
 ## How to use :

cli_calculator/README.md

@@ -0,0 +1,11 @@
+# calc_argparser
+Calculadora via CLI
+
+# Instructions
+To run CLI_Calculator execute:
+
+- `python args.py -h` - For help
+- `python args.py --sum x y` - To sum two numbers
+- `python args.py --sub x y` - To substraction two numbers
+- `python args.py --mult x y` - To multiplication two numbers
+- `python args.py --div x y` - To divide two numbers

cli_calculator/calc/__init__.py

@@ -0,0 +1,3 @@
+from .calc import sub, mult, div, soma
+
+__all__ = ['sub', 'mult', 'div', 'soma']

cli_calculator/calc/args.py

@@ -0,0 +1,29 @@
+"""Calculadora utilizando ArgumentParser."""
+
+from argparse import ArgumentParser
+
+from calc import soma, sub, mult, div
+
+
+parser = ArgumentParser(description='Calculadora')
+
+parser.add_argument('--sum', help='Operação de soma', action='store_true')
+parser.add_argument('--sub', help='Operação de subtração', action='store_true')
+parser.add_argument('--mult', help='Operação de multiplicação', action='store_true')
+parser.add_argument('--div', help='Operação de divisão', action='store_true')
+parser.add_argument('x', type=int, help='Primeiro valor')
+parser.add_argument('y', type=int, help='Segundo valor')
+
+args = parser.parse_args()
+
+if args.sum:
+    print(f'{soma(args.x, args.y)}')
+
+if args.sub:
+    print(f'{sub(args.x, args.y)}')
+
+if args.mult:
+    print(f'{mult(args.x, args.y)}')
+
+if args.div:
+    print(f'{div(args.x, args.y)}')

cli_calculator/calc/calc.py

@@ -0,0 +1,22 @@
+
+def soma(x :int, y: int) -> int:
+    """Função de soma."""
+    return x + y
+
+
+def sub(x :int, y: int) -> int:
+    """Função de subtração."""
+    return x - y
+
+def mult(x :int, y: int) -> int:
+    """Função de multiplicação."""
+    return x * y
+
+
+def div(x :int, y: int) -> int:
+    """Função de divisão."""
+    try:
+        return x / y
+
+    except ZeroDivisionError:
+        return 'Divisao por zero mal sucedida!!'

cli_calculator/tests/test_calc.py

@@ -0,0 +1,28 @@
+from unittest import TestCase
+
+from calc import soma, sub, mult, div
+
+
+class testCalc(TestCase):
+    def test_should_return_two_values_sum(self):
+        esperado = 1 + 2
+        self.assertEqual(esperado, soma(1,2))
+
+
+    def test_should_return_two_values_sub(self):
+        esperado = 1 - 2
+        self.assertEqual(esperado, sub(1,2))
+
+
+    def test_should_return_two_values_mult(self):
+        esperado = 1 * 2
+        self.assertEqual(esperado, mult(1,2))
+
+    def test_should_return_two_values_div(self):
+        esperado = 1 / 2
+        self.assertEqual(esperado, div(1,2))
+
+
+    def test_should_return_exceptio_on_division_by_zero(self):
+        esperado = 'Divisao por zero mal sucedida!!'
+        self.assertEqual(esperado, div(1,0))