Merge pull request kennyledet#539 from ivanchoff/decimalToFraction_python

kennyledet · web-flow · commit 21404372e0de · 2020-11-29T13:17:41.000-06:00
Decimal to fraction python
diff --git a/Decimal_To_Fraction/Python/ivanchoff/decimalToFraction.py b/Decimal_To_Fraction/Python/ivanchoff/decimalToFraction.py
@@ -0,0 +1,21 @@
+# Module that cast a decimal number to fraction notation
+# Input:
+#    number: number to cast
+# return:
+#    tuple[0]: is the error, None is returned when the process has no error
+#              otherwise a string with message of error is returned
+#    tuple[1]: is number in fraction notation
+
+
+from fractions import Fraction
+
+def decimalToFraction(number):
+    if(isinstance(number,(int,float))):
+        ans = Fraction(number).limit_denominator()
+        return (None,str(ans))
+    else:
+        return ('error','arg must be number')
+
+if __name__ == '__main__':
+    print(decimalToFraction(3.45))
+
diff --git a/Decimal_To_Fraction/Python/ivanchoff/decimalToFraction_test.py b/Decimal_To_Fraction/Python/ivanchoff/decimalToFraction_test.py
@@ -0,0 +1,12 @@
+from decimalToFraction import decimalToFraction
+
+test_input = [2.34, 2.45, "hola", "mundo", 3.90]
+test_output_err = [None, None, 'error', 'error', None]
+
+for number, error  in zip(test_input,test_output_err):
+    ans = decimalToFraction(number)
+    if(ans[0] != error):
+        print('the code is wrong!!')
+    else:
+        print(number,' -> ',ans[1])
+    
diff --git a/Palindrome/ruby/ivanchoff/palindrome.rb b/Palindrome/ruby/ivanchoff/palindrome.rb
@@ -0,0 +1,9 @@
+# function that check if a string is palindrome (case sensitive)
+# input:
+#   str: word to check
+# return:
+#   true or false
+
+def palindrome?(str)
+  str == str.reverse
+end
diff --git a/Palindrome/ruby/ivanchoff/palindrome_test.rb b/Palindrome/ruby/ivanchoff/palindrome_test.rb
@@ -0,0 +1,25 @@
+require "./palindrome"
+
+begin
+  # raises an ArgumentError with the message "you messed up!"
+  if palindrome?("hola") == true
+    raise ArgumentError.new("The code for palindrome is wrong!")
+  else
+    print("hola is no-palindrome\n")
+  end
+  
+  if palindrome?("ala") == false
+    raise ArgumentError.new("The code for palindrome is wrong!")
+  else
+    print("ala is palindrome\n")
+  end
+  
+  if palindrome?("radar") == false
+    raise ArgumentError.new("The code for palindrome is wrong!")
+  else
+    print("radar is palindrome\n")
+  end
+  
+  rescue ArgumentError => e  
+    puts e.message
+end
