added test 1, changed test2=test1 test3=test2 test1=new test

context_manager/answers/context_manager_as_class.py

@@ -0,0 +1,17 @@
+class File(object):
+    def __init__(self, file_name, method):
+        self.file_obj = open(file_name, method)
+    def __enter__(self):
+        return self.file_obj
+    def __exit__(self, type, value, traceback):
+        self.file_obj.close()
+
+def check(filename):
+    with File(filename, 'w') as opened_file:
+        opened_file.write('Yeah! You can write context manager as class)')
+
+
+def read_file(filename):
+    with open(filename, 'r') as f:
+        for line in f:
+            return format(line)

context_manager/context_manager_as_class.py

@@ -0,0 +1,16 @@
+class File(object):
+    """
+    Context manager class with '__init__', '__enter__', '__exit__' methods that opens and closes file.
+    """
+
+def check(filename):
+    """
+    Writes 'Yeah! You can write context manager as class)') into filename with File class.
+    :param filename: txt file
+    """
+
+
+def read_file(filename):
+    with open(filename, 'r') as f:
+        for line in f:
+            return format(line)

context_manager/instruction.md

@@ -1,42 +1,42 @@
 ### LEVEL-1.
 
-1. Look at the file write_into_file.py
+1. Look at the file context_manager_as_class.py
 
-2. Look at the tests in tests folder 
+2. Look at the test_context_manager_as_class.py in tests folder 
 
 3. Run tests with command:
 
-    ```python3 -m unittest tests/test_write_into_file.py```
+    ```python3 -m unittest tests/test_context_manager_as_class.py```
 
    As you see all your tests are failed
 
-4. Now, complete the functions in write_into_file.py
+4. Now, complete the functions in context_manager_as_class.py
 
 5. Run tests and all of them should be passed.
 
-6. Compare your answer with mine located in answers/write_into_file.py
+6. Compare your answer with mine located in answers/change_directory.py
 
 7. Congratulations, you have passed first level. Commit and push your changes. 
 
 ### LEVEL-2
 
-1. Look at the file change_directory.py
+1. Look at the file write_into_file.py
 
-2. Look at the test_change_directory.py in tests folder 
+2. Look at the tests in tests folder 
 
 3. Run tests with command:
 
-    ```python3 -m unittest tests/test_change_directory.py```
+    ```python3 -m unittest tests/test_write_into_file.py```
 
    As you see all your tests are failed
 
-4. Now, complete the functions in change_directory.py
+4. Now, complete the functions in write_into_file.py
 
 5. Run tests and all of them should be passed.
 
-6. Compare your answer with mine located in answers/change_directory.py
+6. Compare your answer with mine located in answers/write_into_file.py
 
-7. Congratulations, you have passed second level. Commit and push your changes. 
+7. Congratulations, you have passed first level. Commit and push your changes. 
 
 ### LEVEL-3
 
@@ -58,4 +58,3 @@
 
 7. Congratulations, you have passed second level. Commit and push your changes. 
 
-

context_manager/tests/test_context_manager_as_class.py

@@ -0,0 +1,11 @@
+from unittest import TestCase
+from context_manager_as_class import (
+    check,
+    read_file
+)
+
+class LevelOneTest(TestCase):
+    def test_write_with1(self):
+        check('first.txt')
+        result = read_file('first.txt')
+        self.assertEqual(result, 'Yeah! You can write context manager as class)')

context_manager/tests/test_write_into_file.py

@@ -6,7 +6,7 @@
     read_file
 )
 
-class LevelOneTest(TestCase):
+class LevelTwoTest(TestCase):
     def test_write_without(self):
         result = write_without_context_manager('first.txt')
         self.assertEqual(result, True)

docs/build/html/_sources/context_manager.rst.txt

@@ -24,18 +24,37 @@ or as class by using magic functions::
 
 We want you to pass three levels for a better understanding of **context manager**
 
+Context manager as class
+------------------------
 
+1. Look at the file context_manager_as_class.py
 
-LEVEL-1
--------
+2. Look at the test_context_manager_as_class.py in tests folder
+
+3. Run tests with command::
+
+    python3 -m unittest tests/test_context_manager_as_class.py
+
+   As you see all your tests are failed
+
+4. Now, complete the functions in context_manager_as_class.py
+
+5. Run tests and all of them should be passed.
+
+6. Compare your answer with mine located in answers/change_directory.py
+
+7. Congratulations, you have passed first level. Commit and push your changes.
+
+Write into file
+---------------
 
 1. Look at the file write_into_file.py
 
 2. Look at the tests in tests folter
 
 3. Run tests with command::
 
-    python3 -m unittest tests/tests_for_level_one.py
+    python3 -m unittest tests/tests_write_into_file.py
 
    As you see all your tests are failed
 
@@ -47,6 +66,22 @@ LEVEL-1
 
 7. Congratulations, you have passed first level. Commit and push your changes.
 
-LEVEL-2
--------
+Change directory
+----------------
+1. Look at the file change_directory.py
+
+2. Look at the test_change_directory.py in tests folder
+
+3. Run tests with command::
+
+    python3 -m unittest tests/test_change_directory.py
+
+   As you see all your tests are failed
+
+4. Now, complete the functions in change_directory.py
+
+5. Run tests and all of them should be passed.
+
+6. Compare your answer with mine located in answers/change_directory.py
 
+7. Congratulations, you have passed second level. Commit and push your changes.

docs/build/html/context_manager.html

@@ -84,8 +84,9 @@
 <li class="toctree-l1"><a class="reference internal" href="fibonacci_numbers.html">Fibonacci numbers</a></li>
 <li class="toctree-l1"><a class="reference internal" href="decorators.html">Decorators</a></li>
 <li class="toctree-l1 current"><a class="current reference internal" href="#">Context manager</a><ul>
-<li class="toctree-l2"><a class="reference internal" href="#level-1">LEVEL-1</a></li>
-<li class="toctree-l2"><a class="reference internal" href="#level-2">LEVEL-2</a></li>
+<li class="toctree-l2"><a class="reference internal" href="#context-manager-as-class">Context manager as class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="#write-into-file">Write into file</a></li>
+<li class="toctree-l2"><a class="reference internal" href="#change-directory">Change directory</a></li>
 </ul>
 </li>
 </ul>
@@ -171,15 +172,38 @@ <h1>Context manager<a class="headerlink" href="#context-manager" title="Permalin
 </pre></div>
 </div>
 <p>We want you to pass three levels for a better understanding of <strong>context manager</strong></p>
-<div class="section" id="level-1">
-<h2>LEVEL-1<a class="headerlink" href="#level-1" title="Permalink to this headline">¶</a></h2>
+<div class="section" id="context-manager-as-class">
+<h2>Context manager as class<a class="headerlink" href="#context-manager-as-class" title="Permalink to this headline">¶</a></h2>
+<ol class="arabic">
+<li><p class="first">Look at the file context_manager_as_class.py</p>
+</li>
+<li><p class="first">Look at the test_context_manager_as_class.py in tests folder</p>
+</li>
+<li><p class="first">Run tests with command:</p>
+<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">python3</span> <span class="o">-</span><span class="n">m</span> <span class="n">unittest</span> <span class="n">tests</span><span class="o">/</span><span class="n">test_context_manager_as_class</span><span class="o">.</span><span class="n">py</span>
+</pre></div>
+</div>
+<p>As you see all your tests are failed</p>
+</li>
+<li><p class="first">Now, complete the functions in context_manager_as_class.py</p>
+</li>
+<li><p class="first">Run tests and all of them should be passed.</p>
+</li>
+<li><p class="first">Compare your answer with mine located in answers/change_directory.py</p>
+</li>
+<li><p class="first">Congratulations, you have passed first level. Commit and push your changes.</p>
+</li>
+</ol>
+</div>
+<div class="section" id="write-into-file">
+<h2>Write into file<a class="headerlink" href="#write-into-file" title="Permalink to this headline">¶</a></h2>
 <ol class="arabic">
 <li><p class="first">Look at the file write_into_file.py</p>
 </li>
 <li><p class="first">Look at the tests in tests folter</p>
 </li>
 <li><p class="first">Run tests with command:</p>
-<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">python3</span> <span class="o">-</span><span class="n">m</span> <span class="n">unittest</span> <span class="n">tests</span><span class="o">/</span><span class="n">tests_for_level_one</span><span class="o">.</span><span class="n">py</span>
+<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">python3</span> <span class="o">-</span><span class="n">m</span> <span class="n">unittest</span> <span class="n">tests</span><span class="o">/</span><span class="n">tests_write_into_file</span><span class="o">.</span><span class="n">py</span>
 </pre></div>
 </div>
 <p>As you see all your tests are failed</p>
@@ -194,8 +218,28 @@ <h2>LEVEL-1<a class="headerlink" href="#level-1" title="Permalink to this headli
 </li>
 </ol>
 </div>
-<div class="section" id="level-2">
-<h2>LEVEL-2<a class="headerlink" href="#level-2" title="Permalink to this headline">¶</a></h2>
+<div class="section" id="change-directory">
+<h2>Change directory<a class="headerlink" href="#change-directory" title="Permalink to this headline">¶</a></h2>
+<ol class="arabic">
+<li><p class="first">Look at the file change_directory.py</p>
+</li>
+<li><p class="first">Look at the test_change_directory.py in tests folder</p>
+</li>
+<li><p class="first">Run tests with command:</p>
+<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">python3</span> <span class="o">-</span><span class="n">m</span> <span class="n">unittest</span> <span class="n">tests</span><span class="o">/</span><span class="n">test_change_directory</span><span class="o">.</span><span class="n">py</span>
+</pre></div>
+</div>
+<p>As you see all your tests are failed</p>
+</li>
+<li><p class="first">Now, complete the functions in change_directory.py</p>
+</li>
+<li><p class="first">Run tests and all of them should be passed.</p>
+</li>
+<li><p class="first">Compare your answer with mine located in answers/change_directory.py</p>
+</li>
+<li><p class="first">Congratulations, you have passed second level. Commit and push your changes.</p>
+</li>
+</ol>
 </div>
 </div>