Add a count test

Author: Sreesh Maheshwar

pyiceberg/table/__init__.py

@@ -1096,7 +1096,6 @@ def scan(
             limit=limit,
         )
 
-    # TODO: Consider more concise name
     def incremental_append_scan(
         self,
         row_filter: Union[str, BooleanExpression] = ALWAYS_TRUE,

tests/integration/test_reads.py

@@ -1118,6 +1118,20 @@ def test_incremental_append_scan_limit(catalog: Catalog) -> None:
     assert len(scan.to_arrow()) == 2
 
 
+@pytest.mark.integration
+@pytest.mark.parametrize("catalog", [pytest.lazy_fixture("session_catalog_hive"), pytest.lazy_fixture("session_catalog")])
+def test_incremental_append_scan_count(catalog: Catalog) -> None:
+    test_table = catalog.load_table("default.test_incremental_read")
+
+    scan = (
+        test_table.incremental_append_scan()
+        .from_snapshot_exclusive(test_table.snapshots()[0].snapshot_id)
+        .to_snapshot_inclusive(test_table.snapshots()[2].snapshot_id)
+    )
+
+    assert scan.count() == 3
+
+
 @pytest.mark.integration
 @pytest.mark.parametrize("catalog", [pytest.lazy_fixture("session_catalog_hive")])
 def test_incremental_append_scan_to_snapshot_defaults_to_current(catalog: Catalog) -> None: