add more cli tests

tests/test_cli.py

@@ -1,6 +1,8 @@
 import pytest
+from click.testing import Result
 from typer.testing import CliRunner
 
+from raspi_poe_mon import main
 from raspi_poe_mon.main import app
 from raspi_poe_mon.version import __version__
 
@@ -9,30 +11,41 @@
 
 def test_main_help():
     result = runner.invoke(app, ["--help"])
-    assert result.exit_code == 0
-    assert "raspi-poe-mon" in result.stdout
+    validate_help(result, "raspi-poe-mon")
 
 
 def test_main_help_short():
     result = runner.invoke(app, ["-h"])
-    assert result.exit_code == 0
-    assert "raspi-poe-mon" in result.stdout
+    validate_help(result, "raspi-poe-mon")
 
 
 def test_main_no_params():
     result = runner.invoke(app, [])
-    assert result.exit_code == 0
-    assert "raspi-poe-mon" in result.stdout
+    validate_help(result, "raspi-poe-mon")
 
 
 def test_version():
     result = runner.invoke(app, ["--version"])
-    assert result.exit_code == 0
-    assert __version__ in result.stdout
+    validate_help(result, __version__)
 
 
 @pytest.mark.parametrize("command", ["display", "fan", "run"])
 def test_command_help(command: str):
     result = runner.invoke(app, [command, "--help"])
+    validate_help(result, f"raspi-poe-mon {command}")
+
+
+def validate_help(result: Result, contains: str):
     assert result.exit_code == 0
-    assert f"raspi-poe-mon {command}" in result.stdout
+    assert contains in result.stdout
+    print(result.stdout)
+
+
+@pytest.mark.timeout(2)
+def test_dry_run():
+    main.run(dry_run=True, verbose=True, frame_time=0.02, timeout=0.05)
+
+
+@pytest.mark.timeout(2)
+def test_profiling():
+    main.run(dry_run=True, profiling=True, frame_time=0.05, timeout=0.1)