diff --git a/tests/test_instrument.py b/tests/test_instrument.py
new file mode 100644
index 0000000000000000000000000000000000000000..bde2d0e851354f61cf97b6b0fd4623a9f8c89934
--- /dev/null
+++ b/tests/test_instrument.py
@@ -0,0 +1,11 @@
+#! /usr/bin/env python3
+# -*- coding: utf-8 -*-
+# pylint: disable=missing-module-docstring
+
+from lisainstrument import Instrument
+
+
+def test_run():
+    """Test that simulations can run."""
+    instru = Instrument(size=100)
+    instru.simulate()
diff --git a/tests/test_lisa.py b/tests/test_lisa.py
deleted file mode 100644
index 7290d0ec6c05a87d577b7f258779b38cd48a993b..0000000000000000000000000000000000000000
--- a/tests/test_lisa.py
+++ /dev/null
@@ -1,9 +0,0 @@
-#! /usr/bin/env python3
-# -*- coding: utf-8 -*-
-# pylint: disable=missing-module-docstring
-
-import unittest
-
-
-if __name__ == '__main__':
-    unittest.main()
diff --git a/tests/test_noises.py b/tests/test_noises.py
deleted file mode 100644
index 7290d0ec6c05a87d577b7f258779b38cd48a993b..0000000000000000000000000000000000000000
--- a/tests/test_noises.py
+++ /dev/null
@@ -1,9 +0,0 @@
-#! /usr/bin/env python3
-# -*- coding: utf-8 -*-
-# pylint: disable=missing-module-docstring
-
-import unittest
-
-
-if __name__ == '__main__':
-    unittest.main()