diff --git a/meshtastic/test/test_mesh_interface.py b/meshtastic/test/test_mesh_interface.py
index 77a5608..5862141 100644
--- a/meshtastic/test/test_mesh_interface.py
+++ b/meshtastic/test/test_mesh_interface.py
@@ -1,4 +1,4 @@
-"""Meshtastic unit tests for node.py"""
+"""Meshtastic unit tests for mesh_interface.py"""
 
 import re
 
@@ -9,7 +9,7 @@ from meshtastic.mesh_interface import MeshInterface
 
 @pytest.mark.unit
 def test_MeshInterface(capsys):
-    """Test that we instantiate a MeshInterface"""
+    """Test that we can instantiate a MeshInterface"""
     iface = MeshInterface(noProto=True)
     iface.showInfo()
     iface.localNode.showInfo()
diff --git a/meshtastic/test/test_stream_interface.py b/meshtastic/test/test_stream_interface.py
new file mode 100644
index 0000000..2d051cb
--- /dev/null
+++ b/meshtastic/test/test_stream_interface.py
@@ -0,0 +1,14 @@
+"""Meshtastic unit tests for stream_interface.py"""
+
+
+import pytest
+
+from meshtastic.stream_interface import StreamInterface
+
+
+@pytest.mark.unit
+def test_StreamInterface():
+    """Test that we can instantiate a StreamInterface"""
+    with pytest.raises(Exception) as pytest_wrapped_e:
+        StreamInterface(noProto=True)
+    assert pytest_wrapped_e.type == Exception
diff --git a/meshtastic/test/test_tcp_interface.py b/meshtastic/test/test_tcp_interface.py
new file mode 100644
index 0000000..aa35018
--- /dev/null
+++ b/meshtastic/test/test_tcp_interface.py
@@ -0,0 +1,26 @@
+"""Meshtastic unit tests for tcp_interface.py"""
+
+import re
+
+from unittest.mock import patch
+import pytest
+
+from meshtastic.tcp_interface import TCPInterface
+
+
+@pytest.mark.unit
+def test_TCPInterface(capsys):
+    """Test that we can instantiate a TCPInterface"""
+    with patch('socket.socket') as mock_socket:
+        iface = TCPInterface(hostname='localhost', noProto=True)
+        iface.showInfo()
+        iface.localNode.showInfo()
+        out, err = capsys.readouterr()
+        assert re.search(r'Owner: None \(None\)', out, re.MULTILINE)
+        assert re.search(r'Nodes', out, re.MULTILINE)
+        assert re.search(r'Preferences', out, re.MULTILINE)
+        assert re.search(r'Channels', out, re.MULTILINE)
+        assert re.search(r'Primary channel URL', out, re.MULTILINE)
+        assert err == ''
+        assert mock_socket.called
+        iface.close()
diff --git a/meshtastic/test/test_util.py b/meshtastic/test/test_util.py
index ea3253b..cf5f638 100644
--- a/meshtastic/test/test_util.py
+++ b/meshtastic/test/test_util.py
@@ -1,4 +1,4 @@
-"""Meshtastic unit tests for node.py"""
+"""Meshtastic unit tests for util.py"""
 
 import re