chore: import upstream snapshot with attribution

rust/perspective-python/perspective/tests/viewer/__init__.py

@@ -0,0 +1,11 @@
+#  ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
+#  ┃ ██████ ██████ ██████       █      █      █      █      █ █▄  ▀███ █       ┃
+#  ┃ ▄▄▄▄▄█ █▄▄▄▄▄ ▄▄▄▄▄█  ▀▀▀▀▀█▀▀▀▀▀ █ ▀▀▀▀▀█ ████████▌▐███ ███▄  ▀█ █ ▀▀▀▀▀ ┃
+#  ┃ █▀▀▀▀▀ █▀▀▀▀▀ █▀██▀▀ ▄▄▄▄▄ █ ▄▄▄▄▄█ ▄▄▄▄▄█ ████████▌▐███ █████▄   █ ▄▄▄▄▄ ┃
+#  ┃ █      ██████ █  ▀█▄       █ ██████      █      ███▌▐███ ███████▄ █       ┃
+#  ┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫
+#  ┃ 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). ┃
+#  ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛

rust/perspective-python/perspective/tests/viewer/test_viewer.py

@@ -0,0 +1,246 @@
+#  ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
+#  ┃ ██████ ██████ ██████       █      █      █      █      █ █▄  ▀███ █       ┃
+#  ┃ ▄▄▄▄▄█ █▄▄▄▄▄ ▄▄▄▄▄█  ▀▀▀▀▀█▀▀▀▀▀ █ ▀▀▀▀▀█ ████████▌▐███ ███▄  ▀█ █ ▀▀▀▀▀ ┃
+#  ┃ █▀▀▀▀▀ █▀▀▀▀▀ █▀██▀▀ ▄▄▄▄▄ █ ▄▄▄▄▄█ ▄▄▄▄▄█ ████████▌▐███ █████▄   █ ▄▄▄▄▄ ┃
+#  ┃ █      ██████ █  ▀█▄       █ ██████      █      ███▌▐███ ███████▄ █       ┃
+#  ┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫
+#  ┃ 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 numpy as np
+import pandas as pd
+import pytest
+from perspective.widget.viewer import PerspectiveViewer
+import perspective as psp
+
+client = psp.Server().new_local_client()
+Table = client.table
+
+
+class TestViewer:
+    def test_viewer_get_table(self):
+        table = Table({"a": [1, 2, 3]})
+        viewer = PerspectiveViewer()
+        viewer.load(table)
+        assert viewer.table == table
+
+    # loading
+
+    def test_viewer_load_table(self):
+        table = Table({"a": [1, 2, 3]})
+        viewer = PerspectiveViewer()
+        viewer.load(table)
+        assert viewer.columns == ["a"]
+
+    def test_viewer_load_named_table(self):
+        table = Table({"a": [1, 2, 3]}, name="data_1")
+        viewer = PerspectiveViewer()
+        viewer.load(table)
+        assert viewer.columns == ["a"]
+        assert viewer.table_name == "data_1"
+        assert viewer.table == table
+
+    def test_viewer_load_data(self):
+        viewer = PerspectiveViewer()
+        viewer.load({"a": [1, 2, 3]})
+        assert viewer.columns == ["a"]
+
+    def test_viewer_load_named_data(self):
+        viewer = PerspectiveViewer()
+        viewer.load({"a": [1, 2, 3]}, name="data_1")
+        assert viewer.columns == ["a"]
+        assert viewer.table_name == "data_1"
+
+    def test_viewer_load_schema(self):
+        viewer = PerspectiveViewer()
+        viewer.load({"a": "string", "b": "integer", "c": "boolean", "d": "string"})
+        for col in viewer.columns:
+            assert col in ["a", "b", "c", "d"]
+
+    def test_viewer_load_table_with_options(self):
+        table = Table({"a": [1, 2, 3]})
+        viewer = PerspectiveViewer()
+        # options should be disregarded when loading Table
+        viewer.load(table, limit=1)
+        assert viewer.columns == ["a"]
+        assert viewer.table.size() == 3
+
+    def test_viewer_load_data_with_options(self):
+        viewer = PerspectiveViewer()
+        # options should be forwarded to the Table constructor
+        viewer.load({"a": [1, 2, 3]}, limit=1)
+        assert viewer.columns == ["a"]
+        assert viewer.table.size() == 1
+
+    def test_viewer_load_clears_state(self):
+        table = Table({"a": [1, 2, 3]})
+        viewer = PerspectiveViewer(theme="Pro Dark", group_by=["a"])
+        viewer.load(table)
+        assert viewer.group_by == ["a"]
+        viewer.load({"b": [1, 2, 3]})
+        assert viewer.group_by == []
+        assert viewer.theme == "Pro Dark"  # should not break UI
+
+    @pytest.mark.skip
+    def test_viewer_load_np(self):
+        table = Table({"a": np.arange(1, 100)})
+        viewer = PerspectiveViewer()
+        viewer.load(table)
+        assert viewer.columns == ["a"]
+
+    @pytest.mark.skip
+    def test_viewer_load_np_data(self):
+        viewer = PerspectiveViewer()
+        viewer.load({"a": np.arange(1, 100)})
+        assert viewer.columns == ["a"]
+        assert viewer.table.size() == 99
+
+    @pytest.mark.skip
+    def test_viewer_load_df(self):
+        table = Table(pd.DataFrame({"a": np.arange(1, 100)}))
+        viewer = PerspectiveViewer()
+        viewer.load(table)
+        for col in viewer.columns:
+            assert col in ["index", "a"]
+        assert viewer.table.size() == 99
+
+    def test_viewer_load_df_data(self):
+        viewer = PerspectiveViewer()
+        viewer.load(pd.DataFrame({"a": np.arange(1, 100)}))
+        for col in viewer.columns:
+            assert col in ["index", "a"]
+
+    # update
+
+    def test_viewer_update_dict(self):
+        table = Table({"a": [1, 2, 3]})
+        viewer = PerspectiveViewer()
+        viewer.load(table)
+        viewer.update({"a": [4, 5, 6]})
+        assert table.size() == 6
+        assert viewer.table.size() == 6
+        assert viewer.table.view().to_columns() == {"a": [1, 2, 3, 4, 5, 6]}
+
+    def test_viewer_update_list(self):
+        table = Table({"a": [1, 2, 3]})
+        viewer = PerspectiveViewer()
+        viewer.load(table)
+        viewer.update([{"a": 4}, {"a": 5}, {"a": 6}])
+        assert table.size() == 6
+        assert viewer.table.size() == 6
+        assert viewer.table.view().to_columns() == {"a": [1, 2, 3, 4, 5, 6]}
+
+    def test_viewer_update_df(self):
+        table = Table({"a": [1, 2, 3]})
+        viewer = PerspectiveViewer()
+        viewer.load(table)
+        viewer.update(pd.DataFrame({"a": [4, 5, 6]}))
+        assert table.size() == 6
+        assert viewer.table.size() == 6
+        assert viewer.table.view().to_columns() == {"a": [1, 2, 3, 4, 5, 6]}
+
+    def test_viewer_update_dict_partial(self):
+        table = Table({"a": [1, 2, 3], "b": [5, 6, 7]}, index="a")
+        viewer = PerspectiveViewer()
+        viewer.load(table)
+        viewer.update({"a": [1, 2, 3], "b": [8, 9, 10]})
+        assert table.size() == 3
+        assert viewer.table.size() == 3
+        assert viewer.table.view().to_columns() == {"a": [1, 2, 3], "b": [8, 9, 10]}
+
+    # clear
+
+    def test_viewer_clear(self):
+        table = Table({"a": [1, 2, 3]})
+        viewer = PerspectiveViewer()
+        viewer.load(table)
+        viewer.clear()
+        assert viewer.table.size() == 0
+        assert viewer.table.schema() == {"a": "integer"}
+
+    # replace
+
+    def test_viewer_replace(self):
+        table = Table({"a": [1, 2, 3]})
+        viewer = PerspectiveViewer()
+        viewer.load(table)
+        viewer.replace({"a": [4, 5, 6]})
+        assert viewer.table.size() == 3
+        assert viewer.table.schema() == {"a": "integer"}
+        assert viewer.table.view().to_columns() == {"a": [4, 5, 6]}
+
+    # reset
+
+    def test_viewer_reset(self):
+        table = Table({"a": [1, 2, 3]})
+        viewer = PerspectiveViewer(plugin="X Bar", filter=[["a", "==", 2]])
+        viewer.load(table)
+        assert viewer.filter == [["a", "==", 2]]
+        viewer.reset()
+        assert viewer.plugin == "Datagrid"
+        assert viewer.filter == []
+
+    # delete
+
+    def test_viewer_delete(self):
+        table = Table({"a": [1, 2, 3]})
+        viewer = PerspectiveViewer(plugin="X Bar", filter=[["a", "==", 2]])
+        viewer.load(table)
+        assert viewer.filter == [["a", "==", 2]]
+        viewer.delete()
+        assert viewer.table_name is None
+        assert viewer.table is None
+
+    def test_viewer_delete_without_table(self):
+        table = Table({"a": [1, 2, 3]})
+        viewer = PerspectiveViewer(plugin="X Bar", filter=[["a", "==", 2]])
+        viewer.load(table)
+        assert viewer.filter == [["a", "==", 2]]
+        viewer.delete(delete_table=False)
+        assert viewer.table_name is not None
+        assert viewer.table is not None
+        assert viewer.filter == []
+
+    def test_save_restore(self):
+        table = Table({"a": [1, 2, 3]})
+        viewer = PerspectiveViewer(
+            plugin="X Bar", filter=[["a", "==", 2]], expressions={'"a" * 2': '"a" * 2'}
+        )
+        viewer.load(table)
+
+        # Save config
+        config = viewer.save()
+        assert viewer.filter == [["a", "==", 2]]
+        assert config["filter"] == [["a", "==", 2]]
+        assert viewer.plugin == "X Bar"
+        assert config["plugin"] == "X Bar"
+        assert config["expressions"] == {'"a" * 2': '"a" * 2'}
+
+        # reset configuration
+        viewer.reset()
+        assert viewer.plugin == "Datagrid"
+        assert viewer.filter == []
+        assert viewer.expressions == {}
+
+        # restore configuration
+        viewer.restore(**config)
+        assert viewer.filter == [["a", "==", 2]]
+        assert viewer.plugin == "X Bar"
+        assert viewer.expressions == {'"a" * 2': '"a" * 2'}
+
+    def test_save_restore_plugin_config(self):
+        viewer = PerspectiveViewer(
+            plugin="Datagrid", plugin_config={"columns": {"a": {"fixed": 4}}}
+        )
+        config = viewer.save()
+
+        assert config["plugin_config"] == {"columns": {"a": {"fixed": 4}}}
+
+        viewer.reset()
+        assert viewer.plugin_config == {}
+
+        viewer.restore(**config)
+        assert viewer.plugin_config == config["plugin_config"]