Make unit tests robust to the value of CIBW_ENABLE

Author: joerick

unit_test/main_tests/main_options_test.py

@@ -422,6 +422,8 @@ def test_debug_traceback(monkeypatch, method, capfd):
 
 @pytest.mark.parametrize("method", ["unset", "command_line", "env_var"])
 def test_enable(method, intercepted_build_args, monkeypatch):
+    monkeypatch.delenv("CIBW_ENABLE")
+
     if method == "command_line":
         monkeypatch.setattr(sys, "argv", [*sys.argv, "--enable", "pypy"])
     elif method == "env_var":

unit_test/option_prepare_test.py

@@ -51,6 +51,7 @@ def ignore_context_call(*args, **kwargs):
 @pytest.mark.usefixtures("mock_build_container", "fake_package_dir")
 def test_build_default_launches(monkeypatch):
     monkeypatch.setattr(sys, "argv", [*sys.argv, "--platform=linux"])
+    monkeypatch.delenv("CIBW_ENABLE")
 
     main()