feat: add digest-gated internal main deployment

tests/settings/test_base_settings.py

@@ -0,0 +1,29 @@
+import pytest
+from django.core.exceptions import ImproperlyConfigured
+from settings.base import _env_bool
+
+
+def test_env_bool_uses_explicit_default(monkeypatch):
+    monkeypatch.delenv("TEST_BOOLEAN_FLAG", raising=False)
+
+    assert _env_bool("TEST_BOOLEAN_FLAG", default=True) is True
+    assert _env_bool("TEST_BOOLEAN_FLAG", default=False) is False
+
+
+def test_env_bool_accepts_supported_false_values(monkeypatch):
+    for value in ("0", "false", "NO", " off "):
+        monkeypatch.setenv("TEST_BOOLEAN_FLAG", value)
+        assert _env_bool("TEST_BOOLEAN_FLAG", default=True) is False
+
+
+def test_env_bool_accepts_supported_true_values(monkeypatch):
+    for value in ("1", "true", "YES", " on "):
+        monkeypatch.setenv("TEST_BOOLEAN_FLAG", value)
+        assert _env_bool("TEST_BOOLEAN_FLAG", default=False) is True
+
+
+def test_env_bool_rejects_ambiguous_values(monkeypatch):
+    monkeypatch.setenv("TEST_BOOLEAN_FLAG", "enabled")
+
+    with pytest.raises(ImproperlyConfigured, match="TEST_BOOLEAN_FLAG must be one of"):
+        _env_bool("TEST_BOOLEAN_FLAG", default=True)