domain methods for checking task order sections

tests/domain/test_legacy_task_orders.py

@@ -0,0 +1,28 @@
+import pytest
+
+from atst.domain.exceptions import NotFoundError
+from atst.domain.legacy_task_orders import LegacyTaskOrders
+from atst.eda_client import MockEDAClient
+
+from tests.factories import LegacyTaskOrderFactory
+
+
+def test_can_get_task_order():
+    new_to = LegacyTaskOrderFactory.create(number="0101969F")
+    to = LegacyTaskOrders.get(new_to.number)
+
+    assert to.id == to.id
+
+
+def test_nonexistent_task_order_raises_without_client():
+    with pytest.raises(NotFoundError):
+        LegacyTaskOrders.get("some fake number")
+
+
+def test_nonexistent_task_order_raises_with_client(monkeypatch):
+    monkeypatch.setattr(
+        "atst.domain.legacy_task_orders.LegacyTaskOrders._client",
+        lambda: MockEDAClient(),
+    )
+    with pytest.raises(NotFoundError):
+        LegacyTaskOrders.get("some other fake numer")