Add test coverage for schema summary types

Author: duckontheweb

tests/test_collection.py

@@ -9,7 +9,7 @@
 from pystac.extensions.eo import EOExtension
 from pystac.validation import validate_dict
 from pystac import Collection, Item, Extent, SpatialExtent, TemporalExtent, CatalogType
-from pystac.utils import datetime_to_str
+from pystac.utils import datetime_to_str, get_required
 from tests.utils import TestCases, ARBITRARY_GEOM, ARBITRARY_BBOX
 
 TEST_DATETIME = datetime(2020, 3, 14, 16, 32)
@@ -182,6 +182,20 @@ def test_assets(self) -> None:
         collection = pystac.Collection.from_dict(data)
         collection.validate()
 
+    def test_schema_summary(self) -> None:
+        collection = pystac.Collection.from_file(
+            TestCases.get_path(
+                "data-files/examples/1.0.0/collection-only/collection-with-schemas.json"
+            )
+        )
+        instruments_schema = get_required(
+            collection.summaries.get_schema("instruments"),
+            collection.summaries,
+            "instruments",
+        )
+
+        self.assertIsInstance(instruments_schema, dict)
+
 
 class ExtentTest(unittest.TestCase):
     def test_spatial_allows_single_bbox(self) -> None: