add tests for integration plugin

Author: joshuadavidthomas

tests/integration/test_plugin.py

@@ -2,6 +2,9 @@
 
 import pytest
 
+from tests.plugins.integration import CLI_FLAG
 
-def test_automatically_skip():
-    pytest.fail("tests in `integration` directory should be automatically skipped")
+
+def test_automatically_skip(request):
+    if not request.config.getoption(CLI_FLAG):
+        pytest.fail("tests in `integration` directory should be automatically skipped")

tests/plugins/test_integration.py

@@ -0,0 +1,18 @@
+from __future__ import annotations
+
+from .integration import CLI_FLAG
+from .integration import MARK
+
+
+def test_cli_flag_registered(pytestconfig):
+    assert pytestconfig.getoption(CLI_FLAG) in (
+        True,
+        False,
+    ), f"{CLI_FLAG} should be registered with pytest"
+
+
+def test_markers_registered(pytestconfig):
+    markers = pytestconfig.getini("markers")
+    assert any(
+        f"{MARK}:" in marker for marker in markers
+    ), f"{MARK} marker should be registered"