diff --git a/tests/test_input.py b/tests/test_input.py
new file mode 100644
index 0000000..4ce4658
--- /dev/null
+++ b/tests/test_input.py
@@ -0,0 +1,47 @@
+"""Unit tests for the input command in the OBS WebSocket CLI."""
+
+from typer.testing import CliRunner
+
+from obsws_cli.app import app
+
+runner = CliRunner(mix_stderr=False)
+
+
+def test_input_list():
+    """Test the input list command."""
+    result = runner.invoke(app, ['input', 'list'])
+    assert result.exit_code == 0
+    assert 'Desktop Audio' in result.stdout
+    assert 'Mic/Aux' in result.stdout
+    assert all(
+        item in result.stdout
+        for item in ('Colour Source', 'Colour Source 2', 'Colour Source 3')
+    )
+
+
+def test_input_list_filter_input():
+    """Test the input list command with input filter."""
+    result = runner.invoke(app, ['input', 'list', '--input'])
+    assert result.exit_code == 0
+    assert 'Desktop Audio' not in result.stdout
+    assert 'Mic/Aux' in result.stdout
+
+
+def test_input_list_filter_output():
+    """Test the input list command with output filter."""
+    result = runner.invoke(app, ['input', 'list', '--output'])
+    assert result.exit_code == 0
+    assert 'Desktop Audio' in result.stdout
+    assert 'Mic/Aux' not in result.stdout
+
+
+def test_input_list_filter_colour():
+    """Test the input list command with colour filter."""
+    result = runner.invoke(app, ['input', 'list', '--colour'])
+    assert result.exit_code == 0
+    assert all(
+        item in result.stdout
+        for item in ('Colour Source', 'Colour Source 2', 'Colour Source 3')
+    )
+    assert 'Desktop Audio' not in result.stdout
+    assert 'Mic/Aux' not in result.stdout