Merge pull request #3212 from isabel-lombardi/add-test-m1-011

[FEAT] add test m1 011

Author: isabel-lombardi

projects/m1/011-note-to-frequency/README.md

@@ -14,21 +14,35 @@ with their frequencies.
 |   B4   |    493.88      |  
 
 
-Begin by writing a program that reads the name of a note from the user and displays the note’s frequency. 
-Your program should support all of the notes listed previously.
+Begin by writing a program that **reads the name of a note** from the user and **displays the note’s frequency**.  
+Your program should support all the notes listed previously.
 
-Once you have your program working correctly for the notes listed previously you should add support for all of the notes from C0 to C8. 
-While this could be done by adding many additional cases to your if statement, such a solution is cumbersome, inelegant and unacceptable for the purposes of this exercise. 
+Once you have your program working correctly for the notes listed previously 
+you should add support for all the notes from C0 to C8.   
+While this could be done by adding many additional cases to your if statement, such a solution is cumbersome, 
+inelegant and unacceptable for the purposes of this exercise. 
 Instead, you should exploit the relationship between notes in adjacent octaves. 
-In partic- ular, the frequency of any note in octave n is half the frequency of the corre- sponding note in octave n + 1. 
-By using this relationship, you should be able to add support for the additional notes without adding additional cases to your if statement.
+In particular, **the frequency of any note in octave n is half the frequency of the corresponding note in octave n + 1.** 
+By using this relationship, you should be able to add support for the additional notes without 
+adding additional cases to your if statement.
 
-Hint: You will want to access the characters in the note entered by the user individually when completing this exercise. 
-Begin by separating the letter from the octave. 
-Then compute the frequency for that letter in the fourth octave using the data in the table above. Once you have this frequency you should divide it by 2<sup>4−x</sup> , 
-where x is the octave number entered by the user. This will halve or double the frequency the correct number of times.
+Hint:  
+You will want to access the characters in the note entered by the user individually when completing this exercise.  
+Begin by separating the letter from the octave.  
+Then compute the frequency for that letter in the fourth octave using the data in the table above. 
+Once you have this frequency you should divide it by 2<sup>4−x</sup> , 
+where x is the octave number entered by the user. 
+This will halve or double the frequency the correct number of times.
 
+Example:  
+Input = F6  
+Output = 1396.9 
 
+
+Input = B0  
+Output = 30.8 
+
+https://pages.mtu.edu/~suits/notefreqs.html
 # Documentation
 
 For this project solution you may use:
@@ -38,6 +52,16 @@ For this project solution you may use:
 - Iteration
 - Strings
 
+
+# Test
+
+Execute the test to validate your solution.
+
+- **Python**: `python -m unittest python/test_note_to_frequency.py`
+
+https://pages.mtu.edu/~suits/notefreqs.html
+
+
 # Deadline
 
 This project requires to be completed in a maximum of **3 hours**

projects/m1/011-note-to-frequency/__init__.py

@@ -0,0 +1,48 @@
+import importlib
+import io
+import os
+import re
+import sys
+from pathlib import Path
+from unittest import TestCase, skipIf
+from unittest.mock import patch
+
+file_path = Path(__file__).absolute().parent / 'main.py'
+is_file_empty = os.stat(file_path).st_size == 0
+
+
+@skipIf(is_file_empty, 'Empty file. Test 011 Skipped')
+class TestNoteToFrequency(TestCase):
+
+    def setUp(self) -> None:
+        self.module_name = 'projects.m1.011-note-to-frequency.python.main'
+
+    @patch('builtins.input')
+    def test_ok(self, mock_input):
+        """
+        Check if return the expected result
+        """
+
+        mock_input.return_value = 'C7'
+
+        with patch('sys.stdout', new_callable=io.StringIO) as mock_print:
+            sys.modules.pop(self.module_name, None)
+            importlib.import_module(name=self.module_name, package='files')
+
+            result = float(re.findall(r'\d+\.\d', mock_print.getvalue())[-1])
+            self.assertEqual(2093.0, result)
+
+    @patch('builtins.input')
+    def test_ok_2(self, mock_input):
+        """
+        Check if return the expected result
+        """
+
+        mock_input.return_value = 'A0'
+
+        with patch('sys.stdout', new_callable=io.StringIO) as mock_print:
+            sys.modules.pop(self.module_name, None)
+            importlib.import_module(name=self.module_name, package='files')
+
+            result = float(re.findall(r'\d+\.\d', mock_print.getvalue())[-1])
+            self.assertEqual(27.5, result)