diff --git a/+tests/+unit/InstallExtensionTest.m b/+tests/+unit/InstallExtensionTest.m
new file mode 100644
index 00000000..afce4c56
--- /dev/null
+++ b/+tests/+unit/InstallExtensionTest.m
@@ -0,0 +1,49 @@
+classdef InstallExtensionTest < matlab.unittest.TestCase
+
+    methods (TestClassSetup)
+        function setupClass(testCase)
+            % Get the root path of the matnwb repository
+            rootPath = misc.getMatnwbDir();
+
+            % Use a fixture to add the folder to the search path
+            testCase.applyFixture(matlab.unittest.fixtures.PathFixture(rootPath));
+
+            % Use a fixture to create a temporary working directory
+            testCase.applyFixture(matlab.unittest.fixtures.WorkingFolderFixture);
+            generateCore('savedir', '.');
+        end
+    end
+
+    methods (Test)
+        function testInstallExtension(testCase)
+            nwbInstallExtension("ndx-miniscope", 'savedir', '.')
+
+            testCase.verifyTrue(isfolder('./+types/+ndx_miniscope'), ...
+                'Folder with extension types does not exist')
+        end
+
+        function testUseInstalledExtension(testCase)
+            nwbObject = testCase.initNwbFile();
+            
+            miniscopeDevice = types.ndx_miniscope.Miniscope(...
+                'deviceType', 'test_device', ...
+                'compression', 'GREY', ...
+                'frameRate', '30fps', ...
+                'framesPerFile', int8(100) );
+
+            nwbObject.general_devices.set('TestMiniscope', miniscopeDevice);
+             
+            testCase.verifyClass(nwbObject.general_devices.get('TestMiniscope'), ...
+                'types.ndx_miniscope.Miniscope')
+        end
+    end
+
+    methods (Static)
+        function nwb = initNwbFile()
+            nwb = NwbFile( ...
+                'session_description', 'test file for nwb extension', ...
+                'identifier', 'export_test', ...
+                'session_start_time', datetime("now", 'TimeZone', 'local') );
+        end
+    end
+end