diff --git a/README.md b/README.md
index 821f38f..6e5edab 100644
--- a/README.md
+++ b/README.md
@@ -16,19 +16,22 @@ NOTE: ALL INSTRUCTIONS ARE FOR LINUX.
 
 ## 2. Create virtual environment
 2.1. Terminal command  
-- python3 -m venv env_demo_partsERP  
+- python3 -m venv env_demo_braille  
 
 ## 3. Enter virtual environment
 3.1. Terminal command  
-- source env_demo_partsERP/bin/activate  
+- source env_demo_braille/bin/activate  
 
 ## 4. Install required python packages
 4.1. Terminal command  
 - pip3 install -r requirements.txt  
 
 ## 11. Run project
-11.1. Terminal command  
-- python3 model_gen/main.py
+11.1. Run interactive translator tool with terminal command  
+- python3 main.py
+
+11.2. Run tests
+- python3 tests/all_tests.py
 
 
 # Gallery
diff --git a/business_objects/__pycache__/translation_braille.cpython-312.pyc b/business_objects/__pycache__/translation_braille.cpython-312.pyc
index 253320c..316f856 100644
Binary files a/business_objects/__pycache__/translation_braille.cpython-312.pyc and b/business_objects/__pycache__/translation_braille.cpython-312.pyc differ
diff --git a/business_objects/translation_braille.py b/business_objects/translation_braille.py
index 7a09990..582f1e7 100644
--- a/business_objects/translation_braille.py
+++ b/business_objects/translation_braille.py
@@ -61,7 +61,7 @@ class Translation_Braille(BaseModel):
                     break
                 if known_translations.apply(lambda x: x.iloc[3] == key and x.iloc[1].value <= self.translation_proficiency_level.value, axis=1).any():
                     translation_Braille = known_translations.apply(lambda x: x if (x.iloc[3] == key and x.iloc[1].value <= self.translation_proficiency_level.value) else None, axis=1).dropna().values.tolist()[0]
-                    braille_text.append(translation_Braille.iloc[2])
+                    braille_text.append(translation_Braille[2])
                     index_key_start += key_length
                     found_key = True
                     break
diff --git a/tests/all_tests.py b/tests/all_tests.py
new file mode 100644
index 0000000..16d7541
--- /dev/null
+++ b/tests/all_tests.py
@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+"""
+@author: Edward Middleton-Smith
+"""
+
+from end_to_end_test_alphabet_level_translation import test_alphabet_level_translation
+from end_to_end_test_simple_word_and_groupsigns_level_translation import test_simple_words_and_groupsigns_level_translation
+from end_to_end_test_lower_contractions_level_translation import test_lower_contractions_level_translation
+from integration_test_get_all_characters import test_get_all_characters
+
+
+if __name__ == "__main__":
+    # Integration test
+    test_get_all_characters()
+    # End to end tests
+    test_alphabet_level_translation()
+    test_simple_words_and_groupsigns_level_translation()
+    test_lower_contractions_level_translation()
+        
\ No newline at end of file
diff --git a/tests/end_to_end_test_alphabet_level_translation.py b/tests/end_to_end_test_alphabet_level_translation.py
new file mode 100644
index 0000000..c555c28
--- /dev/null
+++ b/tests/end_to_end_test_alphabet_level_translation.py
@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+"""
+@author: Edward Middleton-Smith
+"""
+
+from context import business_objects
+from business_objects.braille_proficiency_level import Braille_Proficiency_Level
+from business_objects.character_braille import Character_Braille
+from business_objects.translation_braille import Translation_Braille
+
+def test_alphabet_level_translation():
+    print('Alphabet Level Translation')
+    translation = Translation_Braille(
+        plaintext = "Be good",
+        translation_proficiency_level = Braille_Proficiency_Level(1)
+    )
+    translation.print()
+
+if __name__ == "__main__":
+    test_alphabet_level_translation()
+        
\ No newline at end of file
diff --git a/tests/end_to_end_test_lower_contractions_level_translation.py b/tests/end_to_end_test_lower_contractions_level_translation.py
new file mode 100644
index 0000000..77b3a8a
--- /dev/null
+++ b/tests/end_to_end_test_lower_contractions_level_translation.py
@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+"""
+@author: Edward Middleton-Smith
+"""
+
+from context import business_objects
+from business_objects.braille_proficiency_level import Braille_Proficiency_Level
+from business_objects.character_braille import Character_Braille
+from business_objects.translation_braille import Translation_Braille
+
+def test_lower_contractions_level_translation():
+    print('Lower Contractions Level Translation')
+    translation = Translation_Braille(
+        plaintext = "Be good",
+        translation_proficiency_level = Braille_Proficiency_Level(3)
+    )
+    translation.print()
+
+if __name__ == "__main__":
+    test_lower_contractions_level_translation()
+        
\ No newline at end of file
diff --git a/tests/end_to_end_test_simple_word_and_groupsigns_level_translation.py b/tests/end_to_end_test_simple_word_and_groupsigns_level_translation.py
new file mode 100644
index 0000000..60b1a7d
--- /dev/null
+++ b/tests/end_to_end_test_simple_word_and_groupsigns_level_translation.py
@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+"""
+@author: Edward Middleton-Smith
+"""
+
+from context import business_objects
+from business_objects.braille_proficiency_level import Braille_Proficiency_Level
+from business_objects.character_braille import Character_Braille
+from business_objects.translation_braille import Translation_Braille
+
+def test_simple_words_and_groupsigns_level_translation():
+    print('Simple Words And Groupsigns Level Translation')
+    translation = Translation_Braille(
+        plaintext = "Be good",
+        translation_proficiency_level = Braille_Proficiency_Level(2)
+    )
+    translation.print()
+
+if __name__ == "__main__":
+    test_simple_words_and_groupsigns_level_translation()
+        
\ No newline at end of file
diff --git a/tests/end_to_end_test_translation_braille.py b/tests/integration_test_get_all_characters.py
similarity index 94%
rename from tests/end_to_end_test_translation_braille.py
rename to tests/integration_test_get_all_characters.py
index d15819f..1ec65ef 100644
--- a/tests/end_to_end_test_translation_braille.py
+++ b/tests/integration_test_get_all_characters.py
@@ -7,7 +7,7 @@ from context import business_objects
 from business_objects.character_braille import Character_Braille
 from business_objects.translation_braille import Translation_Braille
 
-if __name__ == "__main__":
+def test_get_all_characters():
     braille_translations = Translation_Braille.get_defaults()
     for braille_translation_row in braille_translations.iterrows():
         braille_translation_series = braille_translation_row[1]
@@ -19,4 +19,6 @@ if __name__ == "__main__":
 
         braille_translation = Translation_Braille(plaintext = plaintext, translation_proficiency_level = translation_proficiency_level, braille_text = braille_characters)
         braille_translation.print()
-        
\ No newline at end of file
+
+if __name__ == "__main__":
+    test_get_all_characters()
\ No newline at end of file