diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 78d7b57..3634fc5 100644
--- a/.idea/workspace.xml
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-      <option name="PARAMETERS" value="" />
-      <option name="SHOW_COMMAND_LINE" value="false" />
-      <option name="EMULATE_TERMINAL" value="false" />
-      <option name="MODULE_MODE" value="false" />
-      <option name="REDIRECT_INPUT" value="false" />
-      <option name="INPUT_FILE" value="" />
-      <method v="2" />
-    </configuration>
-    <configuration name="Starthash" type="PythonConfigurationType" factoryName="Python" temporary="true">
+    <configuration name="hashes" type="PythonConfigurationType" factoryName="Python" temporary="true">
       <module name="Web- und Skriptsprachen (Python-Blockkurs)" />
       <option name="INTERPRETER_OPTIONS" value="" />
       <option name="PARENT_ENVS" value="true" />
@@ -415,7 +342,7 @@
       <option name="ADD_CONTENT_ROOTS" value="true" />
       <option name="ADD_SOURCE_ROOTS" value="true" />
       <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
-      <option name="SCRIPT_NAME" value="$PROJECT_DIR$/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/krypto/Starthash.py" />
+      <option name="SCRIPT_NAME" value="$PROJECT_DIR$/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/krypto/hashes.py" />
       <option name="PARAMETERS" value="" />
       <option name="SHOW_COMMAND_LINE" value="false" />
       <option name="EMULATE_TERMINAL" value="false" />
@@ -424,20 +351,65 @@
       <option name="INPUT_FILE" value="" />
       <method v="2" />
     </configuration>
+    <configuration name="Unittests for test_hashMod.TestHashMod" type="tests" factoryName="Unittests" temporary="true" nameIsGenerated="true">
+      <module name="Web- und Skriptsprachen (Python-Blockkurs)" />
+      <option name="INTERPRETER_OPTIONS" value="" />
+      <option name="PARENT_ENVS" value="true" />
+      <option name="SDK_HOME" value="" />
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018" />
+      <option name="IS_MODULE_SDK" value="true" />
+      <option name="ADD_CONTENT_ROOTS" value="true" />
+      <option name="ADD_SOURCE_ROOTS" value="true" />
+      <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
+      <option name="_new_additionalArguments" value="&quot;&quot;" />
+      <option name="_new_target" value="&quot;test_hashMod.TestHashMod&quot;" />
+      <option name="_new_targetType" value="&quot;PYTHON&quot;" />
+      <method v="2" />
+    </configuration>
+    <configuration name="Unittests for test_hashMod.TestHashMod.test_hashMod" type="tests" factoryName="Unittests" temporary="true" nameIsGenerated="true">
+      <module name="Web- und Skriptsprachen (Python-Blockkurs)" />
+      <option name="INTERPRETER_OPTIONS" value="" />
+      <option name="PARENT_ENVS" value="true" />
+      <option name="SDK_HOME" value="" />
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018" />
+      <option name="IS_MODULE_SDK" value="true" />
+      <option name="ADD_CONTENT_ROOTS" value="true" />
+      <option name="ADD_SOURCE_ROOTS" value="true" />
+      <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
+      <option name="_new_additionalArguments" value="&quot;&quot;" />
+      <option name="_new_target" value="&quot;test_hashMod.TestHashMod.test_hashMod&quot;" />
+      <option name="_new_targetType" value="&quot;PYTHON&quot;" />
+      <method v="2" />
+    </configuration>
+    <configuration name="Unittests in test_hashMod.py" type="tests" factoryName="Unittests" temporary="true" nameIsGenerated="true">
+      <module name="Web- und Skriptsprachen (Python-Blockkurs)" />
+      <option name="INTERPRETER_OPTIONS" value="" />
+      <option name="PARENT_ENVS" value="true" />
+      <option name="SDK_HOME" value="" />
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018" />
+      <option name="IS_MODULE_SDK" value="true" />
+      <option name="ADD_CONTENT_ROOTS" value="true" />
+      <option name="ADD_SOURCE_ROOTS" value="true" />
+      <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
+      <option name="_new_additionalArguments" value="&quot;&quot;" />
+      <option name="_new_target" value="&quot;$PROJECT_DIR$/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/test_hashMod.py&quot;" />
+      <option name="_new_targetType" value="&quot;PATH&quot;" />
+      <method v="2" />
+    </configuration>
     <list>
-      <item itemvalue="Python.Pong" />
-      <item itemvalue="Python.Aufg3_YingUndYang_Server" />
-      <item itemvalue="Python.Aufg4_Quadratzahlen_Server" />
+      <item itemvalue="Python.hashes" />
+      <item itemvalue="Python tests.Unittests in test_hashMod.py" />
+      <item itemvalue="Python tests.Unittests for test_hashMod.TestHashMod" />
+      <item itemvalue="Python tests.Unittests for test_hashMod.TestHashMod.test_hashMod" />
       <item itemvalue="Python.Aufg2_Starthash" />
-      <item itemvalue="Python.Starthash" />
     </list>
     <recent_temporary>
       <list>
+        <item itemvalue="Python tests.Unittests for test_hashMod.TestHashMod.test_hashMod" />
         <item itemvalue="Python.Aufg2_Starthash" />
-        <item itemvalue="Python.Starthash" />
-        <item itemvalue="Python.Aufg4_Quadratzahlen_Server" />
-        <item itemvalue="Python.Aufg3_YingUndYang_Server" />
-        <item itemvalue="Python.Pong" />
+        <item itemvalue="Python.hashes" />
+        <item itemvalue="Python tests.Unittests for test_hashMod.TestHashMod" />
+        <item itemvalue="Python tests.Unittests in test_hashMod.py" />
       </list>
     </recent_temporary>
   </component>
@@ -494,19 +466,46 @@
       <option name="project" value="LOCAL" />
       <updated>1539862104249</updated>
     </task>
-    <option name="localTasksCounter" value="7" />
+    <task id="LOCAL-00007" summary="Zwischenstand zweiter Praktikumstag: Erstellung des Moduls + Modulverzeichnis">
+      <created>1540215936875</created>
+      <option name="number" value="00007" />
+      <option name="presentableId" value="LOCAL-00007" />
+      <option name="project" value="LOCAL" />
+      <updated>1540215936875</updated>
+    </task>
+    <option name="localTasksCounter" value="8" />
     <servers />
   </component>
+  <component name="TestHistory">
+    <history-entry file="Unittests_in_test_hashMod_py - 2018.10.22 at 16h 23m 50s.xml">
+      <configuration name="Unittests in test_hashMod.py" configurationId="tests" />
+    </history-entry>
+    <history-entry file="Unittests_for_test_hashMod_TestHashMod - 2018.10.22 at 16h 29m 02s.xml">
+      <configuration name="Unittests for test_hashMod.TestHashMod" configurationId="tests" />
+    </history-entry>
+    <history-entry file="Unittests_for_test_hashMod_TestHashMod_test_hashMod - 2018.10.22 at 16h 33m 11s.xml">
+      <configuration name="Unittests for test_hashMod.TestHashMod.test_hashMod" configurationId="tests" />
+    </history-entry>
+    <history-entry file="Unittests_for_test_hashMod_TestHashMod_test_hashMod - 2018.10.22 at 16h 33m 30s.xml">
+      <configuration name="Unittests for test_hashMod.TestHashMod.test_hashMod" configurationId="tests" />
+    </history-entry>
+    <history-entry file="Unittests_for_test_hashMod_TestHashMod_test_hashMod - 2018.10.22 at 16h 34m 00s.xml">
+      <configuration name="Unittests for test_hashMod.TestHashMod.test_hashMod" configurationId="tests" />
+    </history-entry>
+    <history-entry file="Unittests_for_test_hashMod_TestHashMod_test_hashMod - 2018.10.22 at 16h 35m 44s.xml">
+      <configuration name="Unittests for test_hashMod.TestHashMod.test_hashMod" configurationId="tests" />
+    </history-entry>
+  </component>
   <component name="ToolWindowManager">
     <frame x="-8" y="-8" width="1616" height="876" extended-state="6" />
     <editor active="true" />
     <layout>
-      <window_info active="true" content_ui="combo" id="Project" order="0" visible="true" weight="0.24357326" />
+      <window_info content_ui="combo" id="Project" order="0" visible="true" weight="0.24357326" />
       <window_info id="Structure" order="1" side_tool="true" weight="0.25" />
       <window_info id="Favorites" order="2" side_tool="true" />
       <window_info anchor="bottom" id="Message" order="0" />
       <window_info anchor="bottom" id="Find" order="1" />
-      <window_info anchor="bottom" id="Run" order="2" weight="0.32839838" />
+      <window_info active="true" anchor="bottom" id="Run" order="2" visible="true" weight="0.32839838" />
       <window_info anchor="bottom" id="Debug" order="3" weight="0.39973083" />
       <window_info anchor="bottom" id="Cvs" order="4" weight="0.25" />
       <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
@@ -560,7 +559,8 @@
     <MESSAGE value="Das ist ein Commit-Test für Janko" />
     <MESSAGE value="Fertiges PONG-Spiel (Beta-Version zu finden unter &quot;Tag2_EigenesSpiel.py&quot;)" />
     <MESSAGE value="Zwischenstand erster Praktikumstag: Aufgaben 1-3 funktionieren, Aufgabe 4 ist noch zu implementieren" />
-    <option name="LAST_COMMIT_MESSAGE" value="Zwischenstand erster Praktikumstag: Aufgaben 1-3 funktionieren, Aufgabe 4 ist noch zu implementieren" />
+    <MESSAGE value="Zwischenstand zweiter Praktikumstag: Erstellung des Moduls + Modulverzeichnis" />
+    <option name="LAST_COMMIT_MESSAGE" value="Zwischenstand zweiter Praktikumstag: Erstellung des Moduls + Modulverzeichnis" />
   </component>
   <component name="XDebuggerManager">
     <watches-manager>
@@ -693,33 +693,6 @@
       <provider selected="true" editor-type-id="text-editor" />
     </entry>
     <entry file="file://$PROJECT_DIR$/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/krypto/Starthash.py" />
-    <entry file="file://$PROJECT_DIR$/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/krypto/hashes.py">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="221">
-          <caret line="13" column="21" selection-start-line="13" selection-start-column="21" selection-end-line="13" selection-end-column="21" />
-          <folding>
-            <marker date="1540201003227" expanded="true" signature="129:134" ph="..." />
-          </folding>
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/Aufg2_Starthash.py">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="102">
-          <caret line="7" column="19" selection-start-line="7" selection-start-column="19" selection-end-line="7" selection-end-column="19" />
-          <folding>
-            <element signature="e#0#10#0" expanded="true" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/Aufg4_VerwendungVonUnittest.py">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="34">
-          <caret line="2" selection-start-line="2" selection-end-line="2" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/mEIM-Praktikum_Webentwicklung/Tag1_15.10.2018/Aufg4_Quadratzahlen_Server.py">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="391">
@@ -730,5 +703,42 @@
         </state>
       </provider>
     </entry>
+    <entry file="file://$PROJECT_DIR$/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/Aufg4_VerwendungVonUnittest.py">
+      <provider selected="true" editor-type-id="text-editor">
+        <state>
+          <caret column="15" lean-forward="true" selection-start-column="15" selection-end-column="15" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/krypto/hashes.py">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="170">
+          <caret line="10" column="14" selection-start-line="10" selection-start-column="14" selection-end-line="10" selection-end-column="14" />
+          <folding>
+            <marker date="1540218923327" expanded="true" signature="129:134" ph="..." />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/Aufg2_Starthash.py">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="51">
+          <caret line="3" column="11" selection-start-line="3" selection-start-column="11" selection-end-line="3" selection-end-column="11" />
+          <folding>
+            <element signature="e#0#10#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/test_hashMod.py">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="221">
+          <caret line="13" column="18" selection-start-line="13" selection-start-column="18" selection-end-line="13" selection-end-column="18" />
+          <folding>
+            <element signature="e#0#29#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
   </component>
 </project>
\ No newline at end of file
diff --git a/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/Aufg4_VerwendungVonUnittest.py b/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/Aufg4_VerwendungVonUnittest.py
deleted file mode 100644
index c5c2eee..0000000
--- a/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/Aufg4_VerwendungVonUnittest.py
+++ /dev/null
@@ -1,2 +0,0 @@
-import unittest
-
diff --git a/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/__init__.py b/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/krypto/hashes.py b/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/krypto/hashes.py
index f92151c..4d35317 100644
--- a/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/krypto/hashes.py
+++ b/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/krypto/hashes.py
@@ -8,7 +8,7 @@ def hashMod(bytes):
         result += byte
     return result % sys.maxsize
 
-if __name__ != "__main__":
+if __name__ == "__main__":
     myByteArray = bytearray("Schokopraline", encoding='utf-8')
     hashvalue = hashMod(myByteArray)
     print("Ohne importierten Aufruf lautet der Hashwert zu 'Schokopraline': ", hashvalue)
\ No newline at end of file
diff --git a/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/test_hashMod.py b/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/test_hashMod.py
new file mode 100644
index 0000000..1ca16f2
--- /dev/null
+++ b/mEIM-Praktikum_Webentwicklung/Tag2_22.10.2018/test_hashMod.py
@@ -0,0 +1,16 @@
+from unittest import TestCase
+
+from krypto import hashes
+
+
+class TestHashMod(TestCase):
+    def test_hashMod(self):
+        firstCall = hashes.hashMod("Sahnetorte".encode('utf-8'))
+        secondCall = hashes.hashMod("Sahnetorte".encode('utf-8'))
+        straingeCall = hashes.hashMod("Kirschkuchen".encode('utf-8'))
+
+        self.assertEqual(firstCall, secondCall, "Die Werte sind gleich! -> Test geglückt") # firstCall and secondCall are Equal so test should finish with OK
+
+        self.assertNotEqual(firstCall, straingeCall, "Die Werte sind ungleich, Test ebenfalls geglückt!")  # firstCall and straingeCall are not equal so test should finish with OK
+
+        #self.assertEqual(firstCall, straingeCall, "Die Werte sind gleich! -> Test geglückt") # firstCall and Strainge call are not equal but equality is tested. Test should finish with FAILED
diff --git a/mEIM-Praktikum_Webentwicklung/__init__.py b/mEIM-Praktikum_Webentwicklung/__init__.py
new file mode 100644
index 0000000..e69de29