chore: import upstream snapshot with attribution

2026-07-13 12:25:07 +08:00
commit a26e856398
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+#  ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
+#  ┃ ██████ ██████ ██████       █      █      █      █      █ █▄  ▀███ █       ┃
+#  ┃ ▄▄▄▄▄█ █▄▄▄▄▄ ▄▄▄▄▄█  ▀▀▀▀▀█▀▀▀▀▀ █ ▀▀▀▀▀█ ████████▌▐███ ███▄  ▀█ █ ▀▀▀▀▀ ┃
+#  ┃ █▀▀▀▀▀ █▀▀▀▀▀ █▀██▀▀ ▄▄▄▄▄ █ ▄▄▄▄▄█ ▄▄▄▄▄█ ████████▌▐███ █████▄   █ ▄▄▄▄▄ ┃
+#  ┃ █      ██████ █  ▀█▄       █ ██████      █      ███▌▐███ ███████▄ █       ┃
+#  ┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫
+#  ┃ Copyright (c) 2017, the Perspective Authors.                              ┃
+#  ┃ ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ ┃
+#  ┃ This file is part of the Perspective library, distributed under the terms ┃
+#  ┃ of the [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0). ┃
+#  ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
+
+import perspective as psp
+
+client = psp.Server().new_local_client()
+Table = client.table
+
+
+class TestTableInfer(object):
+    def test_table_limit_wraparound_does_not_respect_partial_none(self):
+        t = Table({"a": "float", "b": "float"}, limit=3)
+        t.update([{"a": 10}, {"b": 1}, {"a": 20}, {"a": None, "b": 2}])
+        d1 = t.view().to_json()
+
+        t2 = Table({"a": "float", "b": "float"}, limit=3)
+        t2.update([{"a": 10}, {"b": 1}, {"a": 20}, {"b": 2}])
+        d2 = t2.view().to_json()
+
+        assert d1[0] == d2[0]
+        assert d1[1:] == d2[1:]
+
+    def test_table_limit_wraparound_does_not_respect_partial(self):
+        t = Table({"a": "float", "b": "float"}, limit=3)
+        t.update([{"a": 10}, {"b": 1}, {"a": 20}, {"a": 10, "b": 2}])
+        d1 = t.view().to_columns()
+
+        t2 = Table({"a": "float", "b": "float"}, limit=3)
+        t2.update([{"a": 10}, {"b": 1}, {"a": 20}, {"b": 2}])
+        d2 = t2.view().to_columns()
+
+        assert d1 != d2
+
+    def test_table_limit_with_json(self):
+        t = Table({"a": [1, 2, 3]}, limit=1)
+        assert t.size() == 1