Refactor command handling

This now supports usage/help texts

tests/packages/sshd/test_ping.py

@@ -1,8 +1,11 @@
+"""Test for the ping command."""
+import allure
 import pytest
 
 from .types import ClientRegistry, CommandRunner
 
 
+@allure.title("Test running the ping command")
 @pytest.mark.asyncio
 async def test_ping_command(
     ssh_command_runner: CommandRunner, client_registry: ClientRegistry
@@ -16,3 +19,21 @@ async def test_ping_command(
     assert result.stdout is not None
     assert isinstance(result.stdout, str)
     assert result.stdout.rstrip() == "PONG"
+
+@allure.title("Test ping help")
+@pytest.mark.asyncio
+async def test_ping_cmd_help(ssh_command_runner: CommandRunner,  client_registry: ClientRegistry) -> None:
+    """Test running ping --help."""
+    await client_registry["add_client"]("test-client", ["mysecret"])
+    result = await ssh_command_runner("test-client", "ping --help")
+
+    assert result.exit_status == 0
+
+    print(result.stdout)
+    assert isinstance(result.stdout, str)
+
+    lines = result.stdout.splitlines()
+
+    assert lines[0] == "ping"
+
+    assert len(lines) > 4