diff --git a/tests/test_Arbin.py b/tests/test_Arbin.py
index 97c34a7..9032a9b 100644
--- a/tests/test_Arbin.py
+++ b/tests/test_Arbin.py
@@ -14,6 +14,15 @@ from galvani import res2sqlite
 have_mdbtools = (subprocess.call(['which', 'mdb-export'], stdout=None) == 0)
 
 
+def test_res2sqlite_help():
+    """Test running `res2sqlite --help`.
+
+    This should work even when mdbtools is not installed.
+    """
+    help_output = subprocess.check_output(['res2sqlite', '--help'])
+    assert b'Convert Arbin .res files to sqlite3 databases' in help_output
+
+
 @pytest.mark.skipif(have_mdbtools, reason='This tests the failure when mdbtools is not installed')
 def test_convert_Arbin_no_mdbtools(testdata_dir, tmpdir):
     """Checks that the conversion fails with an appropriate error message."""
@@ -29,7 +38,7 @@ def test_convert_Arbin_no_mdbtools(testdata_dir, tmpdir):
 
 @pytest.mark.skipif(not have_mdbtools, reason='Reading the Arbin file requires MDBTools')
 @pytest.mark.parametrize('basename', ['arbin1'])
-def test_convert_Arbin_to_sqlite(testdata_dir, tmpdir, basename):
+def test_convert_Arbin_to_sqlite_function(testdata_dir, tmpdir, basename):
     """Convert an Arbin file to SQLite using the functional interface."""
     res_file = os.path.join(testdata_dir, basename + '.res')
     sqlite_file = os.path.join(str(tmpdir), basename + '.s3db')
@@ -38,3 +47,15 @@ def test_convert_Arbin_to_sqlite(testdata_dir, tmpdir, basename):
     with sqlite3.connect(sqlite_file) as conn:
         csr = conn.execute('SELECT * FROM Channel_Normal_Table;')
         csr.fetchone()
+
+
+@pytest.mark.skipif(not have_mdbtools, reason='Reading the Arbin file requires MDBTools')
+def test_convert_cmdline(testdata_dir, tmpdir):
+    """Checks that the conversion fails with an appropriate error message."""
+    res_file = os.path.join(testdata_dir, 'arbin1.res')
+    sqlite_file = os.path.join(str(tmpdir), 'arbin1.s3db')
+    subprocess.check_call(['res2sqlite', res_file, sqlite_file])
+    assert os.path.isfile(sqlite_file)
+    with sqlite3.connect(sqlite_file) as conn:
+        csr = conn.execute('SELECT * FROM Channel_Normal_Table;')
+        csr.fetchone()