Merge pull request #670 from terror/add-check-pangram

add check pangram

Author: goswami-rahul

README.md

@@ -325,6 +325,7 @@ If you want to uninstall algorithms, it is as simple as:
     - [judge_circle](algorithms/strings/judge_circle.py)
     - [strong_password](algorithms/strings/strong_password.py)
     - [caesar_cipher](algorithms/strings/caesar_cipher.py)
+    - [check_pangram](algorithms/strings/check_pangram.py
     - [contain_string](algorithms/strings/contain_string.py)
     - [count_binary_substring](algorithms/strings/count_binary_substring.py)
     - [repeat_string](algorithms/strings/repeat_string.py)

algorithms/strings/__init__.py

@@ -25,6 +25,7 @@
 from .judge_circle import *
 from .strong_password import *
 from .caesar_cipher import *
+from .check_pangram import *
 from .contain_string import *
 from .count_binary_substring import *
 from .repeat_string import *

algorithms/strings/check_pangram.py

@@ -0,0 +1,10 @@
+"""
+Algorithm that checks if a given string is a pangram or not
+"""
+
+def check_pangram(input_string):
+    alphabet = "abcdefghijklmnopqrstuvwxyz"
+    for ch in alphabet:
+        if ch not in input_string.lower():
+            return False
+    return True 

tests/test_strings.py

@@ -28,6 +28,7 @@
     judge_circle,
     strong_password,
     caesar_cipher,
+    check_pangram,
     contain_string,
     count_binary_substring,
     repeat_string,
@@ -454,6 +455,11 @@ def test_caesar_cipher(self):
         self.assertEqual("Lipps_Asvph!", caesar_cipher("Hello_World!", 4))
         self.assertEqual("okffng-Qwvb", caesar_cipher("middle-Outz", 2))
 
+class TestCheckPangram(unittest.TestCase):
+    def test_check_pangram(self):
+        self.assertTrue(check_pangram("The quick brown fox jumps over the lazy dog"))
+        self.assertFalse(check_pangram("The quick brown fox"))
+
 
 class TestContainString(unittest.TestCase):
     def test_contain_string(self):