diff --git a/src/cpl_cli/main.py b/src/cpl_cli/main.py
index 5ccac3ed..4b6959d9 100644
--- a/src/cpl_cli/main.py
+++ b/src/cpl_cli/main.py
@@ -41,12 +41,12 @@ def main():
 if __name__ == '__main__':
     main()
 
-#           ((
-#           ( `)
-#           ; / ,
-#          /  \/
-#         /  |
-#        /  ~/
-#       / )  )   ~ edraft
-#   ___// | /
-#   `--'  \_~-,
+#         ((
+#         ( `)
+#         ; / ,
+#        /  \/
+#       /  |
+#      /  ~/
+#     / )  )   ~ edraft
+# ___// | /
+# `--'  \_~-,
diff --git a/unittests/unittests_cli/add_test_case.py b/unittests/unittests_cli/add_test_case.py
index c2f493b3..27964fbe 100644
--- a/unittests/unittests_cli/add_test_case.py
+++ b/unittests/unittests_cli/add_test_case.py
@@ -1,10 +1,52 @@
+import json
+import os
+import shutil
 import unittest
 
+from cpl_core.utils import String
+
+from unittests_cli.constants import PLAYGROUND_PATH
+from unittests_shared.cli_commands import CLICommands
+
 
 class AddTestCase(unittest.TestCase):
 
-    def setUp(self):
-        pass
+    def __init__(self, methodName: str):
+        unittest.TestCase.__init__(self, methodName)
+        self._source = 'add-test-project'
+        self._target = 'add-test-library'
+        self._project_file = f'src/{String.convert_to_snake_case(self._source)}/{self._source}.json'
 
-    def test_equal(self):
-        pass
+    def _get_project_settings(self):
+        with open(os.path.join(os.getcwd(), self._project_file), 'r', encoding='utf-8') as cfg:
+            # load json
+            project_json = json.load(cfg)
+            cfg.close()
+
+        return project_json
+
+    def setUp(self):
+        os.chdir(os.path.abspath(PLAYGROUND_PATH))
+        # create projects
+        CLICommands.new('console', self._source, '--ab', '--s')
+        os.chdir(os.path.join(os.getcwd(), self._source))
+        CLICommands.new('console', self._target, '--ab', '--s')
+
+    def cleanUp(self):
+        # remove projects
+        if not os.path.exists(os.path.abspath(os.path.join(PLAYGROUND_PATH, self._source))):
+            return
+
+        shutil.rmtree(os.path.abspath(os.path.join(PLAYGROUND_PATH, self._source)))
+
+    def test_add(self):
+        CLICommands.add(self._source, self._target)
+        settings = self._get_project_settings()
+        self.assertNotEqual(settings, {})
+        self.assertIn('ProjectSettings', settings)
+        self.assertIn('ProjectReferences', settings['BuildSettings'])
+        self.assertIn('BuildSettings', settings)
+        self.assertIn(
+            f'../{String.convert_to_snake_case(self._target)}/{self._target}.json',
+            settings['BuildSettings']['ProjectReferences']
+        )
diff --git a/unittests/unittests_cli/cli_test_suite.py b/unittests/unittests_cli/cli_test_suite.py
index f1a7d7ea..ffc3eb95 100644
--- a/unittests/unittests_cli/cli_test_suite.py
+++ b/unittests/unittests_cli/cli_test_suite.py
@@ -5,6 +5,7 @@ import unittest
 from typing import Optional
 from unittest import TestResult
 
+from unittests_cli.add_test_case import AddTestCase
 from unittests_cli.constants import PLAYGROUND_PATH
 from unittests_cli.generate_test_case import GenerateTestCase
 from unittests_cli.new_test_case import NewTestCase
@@ -32,7 +33,7 @@ class CLITestSuite(unittest.TestSuite):
         # self.addTests(loader.loadTestsFromTestCase(UpdateTestCase))
 
         # workspace needed
-        # self.addTests(loader.loadTestsFromTestCase(AddTestCase))
+        self.addTests(loader.loadTestsFromTestCase(AddTestCase))
         # self.addTests(loader.loadTestsFromTestCase(RemoveTestCase))
 
     def _setup(self):
diff --git a/unittests/unittests_shared/cli_commands.py b/unittests/unittests_shared/cli_commands.py
index 5c04db12..68ed508c 100644
--- a/unittests/unittests_shared/cli_commands.py
+++ b/unittests/unittests_shared/cli_commands.py
@@ -17,6 +17,10 @@ class CLICommands:
 
         subprocess.run(command, env=env_vars)
 
+    @classmethod
+    def add(cls, source: str, target: str):
+        cls._run('add', source, target)
+
     @classmethod
     def generate(cls, schematic: str, name: str, output=False):
         cls._run('generate', schematic, name, output=output)