993 progress: two more files converted to pytest, one remaining (#1535)

* 993 pull out constants to module scope

* 993 convert assertions in test_storage.py

* 993 convert a test

* 993 convert a test using conftest fixture

* 993 convert test_validate_storage to pytest

* 993 easy test conversion

* 993 convert remainder of tests in ItemStorageExtensionTest

* 993 refactor test classes as a prelude to declassing

* 993 convert a test from StorageExtensionSummariesTest

* 993 rename for clarity post-declass

* 993 declass StorageExtensionSummariesTest tests

* 993 finish declassing

* 993 declass AssetStorageExtensionTest

* 993 finish declassing

* 993 better names for asset tests

* 993 start on test_timestamps.py

* 993 replace assertions

* 993 relocate cassettes prior to declassing

* 993 set up for test conversion

* 993 yet another nonfunctional declassing

* 993 convert tests to pytest

* 993 convert TimestampsSummariesTest

* 993 ruff's opinions

Author: teks

tests/conftest.py

@@ -26,6 +26,14 @@ def collection() -> Catalog:
     return Collection("test-collection", "A test collection", ARBITRARY_EXTENT)
 
 
+@pytest.fixture
+def multi_extent_collection() -> Collection:
+    # TODO this code is repeated many times; refactor to use this fixture
+    return Collection.from_file(
+        TestCases.get_path("data-files/collections/multi-extent.json")
+    )
+
+
 @pytest.fixture
 def item() -> Item:
     return Item("test-item", ARBITRARY_GEOM, ARBITRARY_BBOX, datetime.now(), {})