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# (C) Copyright 2005-2023 Enthought, Inc., Austin, TX
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in LICENSE.txt and may be redistributed only under
# the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
#
# Thanks for using Enthought open source!
import unittest
from traits.trait_list_object import TraitList
from traits.testing.api import UnittestTools
from pyface.data_view.abstract_data_model import DataViewSetError
from pyface.data_view.abstract_value_type import AbstractValueType
from pyface.data_view.value_types.api import IntValue, TextValue
from pyface.data_view.data_models.data_accessors import (
AttributeDataAccessor, IndexDataAccessor, KeyDataAccessor
)
from pyface.data_view.data_models.row_table_data_model import RowTableDataModel
class DataItem:
def __init__(self, a, b, c):
self.a = a
self.b = b
self.c = c
class TestRowTableDataModel(UnittestTools, unittest.TestCase):
def setUp(self):
super().setUp()
self.data = [
DataItem(a=i, b=10*i, c=str(i)) for i in range(10)
]
self.model = RowTableDataModel(
data=self.data,
row_header_data=AttributeDataAccessor(
attr='a',
value_type=IntValue(),
),
column_data=[
AttributeDataAccessor(
attr='b',
value_type=IntValue(),
),
AttributeDataAccessor(
attr='c',
value_type=TextValue(),
)
]
)
self.values_changed_event = None
self.structure_changed_event = None
self.model.observe(self.model_values_changed, 'values_changed')
self.model.observe(self.model_structure_changed, 'structure_changed')
def tearDown(self):
self.model.observe(
self.model_values_changed, 'values_changed', remove=True)
self.model.observe(
self.model_structure_changed, 'structure_changed', remove=True)
self.values_changed_event = None
self.structure_changed_event = None
super().tearDown()
def model_values_changed(self, event):
self.values_changed_event = event
def model_structure_changed(self, event):
self.structure_changed_event = event
def test_no_data(self):
model = RowTableDataModel()
self.assertEqual(model.get_column_count(), 0)
self.assertTrue(model.can_have_children(()))
self.assertEqual(model.get_row_count(()), 0)
def test_get_column_count(self):
result = self.model.get_column_count()
self.assertEqual(result, 2)
def test_can_have_children(self):
for row in self.model.iter_rows():
with self.subTest(row=row):
result = self.model.can_have_children(row)
if len(row) == 0:
self.assertEqual(result, True)
else:
self.assertEqual(result, False)
def test_get_row_count(self):
for row in self.model.iter_rows():
with self.subTest(row=row):
result = self.model.get_row_count(row)
if len(row) == 0:
self.assertEqual(result, 10)
else:
self.assertEqual(result, 0)
def test_get_value(self):
for row, column in self.model.iter_items():
with self.subTest(row=row, column=column):
result = self.model.get_value(row, column)
if len(row) == 0 and len(column) == 0:
self.assertEqual(result, 'A')
elif len(row) == 0:
attr = self.model.column_data[column[0]].attr
self.assertEqual(result, attr.title())
elif len(column) == 0:
self.assertEqual(result, row[0])
else:
attr = self.model.column_data[column[0]].attr
self.assertEqual(
result,
getattr(self.data[row[0]], attr)
)
def test_set_value(self):
for row, column in self.model.iter_items():
with self.subTest(row=row, column=column):
if len(row) == 0 and len(column) == 0:
with self.assertRaises(DataViewSetError):
self.model.set_value(row, column, 0)
elif len(row) == 0:
with self.assertRaises(DataViewSetError):
self.model.set_value(row, column, 0)
elif len(column) == 0:
value = 6.0 * row[0]
with self.assertTraitChanges(self.model, "values_changed"):
self.model.set_value(row, column, value)
self.assertEqual(self.data[row[0]].a, value)
self.assertEqual(
self.values_changed_event.new,
(row, column, row, column)
)
else:
value = 6.0 * row[-1] + 2 * column[0]
with self.assertTraitChanges(self.model, "values_changed"):
self.model.set_value(row, column, value)
attr = self.model.column_data[column[0]].attr
self.assertEqual(
getattr(self.data[row[0]], attr),
value,
)
self.assertEqual(
self.values_changed_event.new,
(row, column, row, column)
)
def test_get_value_type(self):
for row, column in self.model.iter_items():
with self.subTest(row=row, column=column):
result = self.model.get_value_type(row, column)
if len(row) == 0 and len(column) == 0:
self.assertIsInstance(result, AbstractValueType)
self.assertIs(
result,
self.model.row_header_data.title_type,
)
elif len(row) == 0:
self.assertIsInstance(result, AbstractValueType)
self.assertIs(
result,
self.model.column_data[column[0]].title_type,
)
elif len(column) == 0:
self.assertIsInstance(result, AbstractValueType)
self.assertIs(
result,
self.model.row_header_data.value_type,
)
else:
self.assertIsInstance(result, AbstractValueType)
self.assertIs(
result,
self.model.column_data[column[0]].value_type,
)
def test_data_updated(self):
with self.assertTraitChanges(self.model, "structure_changed"):
self.model.data = [
DataItem(a=i+1, b=20*(i+1), c=str(i)) for i in range(10)
]
self.assertTrue(self.structure_changed_event.new)
def test_data_items_updated_item_added(self):
self.model.data = TraitList([
DataItem(a=i, b=10*i, c=str(i)) for i in range(10)
])
with self.assertTraitChanges(self.model, "structure_changed"):
self.model.data += [DataItem(a=100, b=200, c="a string")]
self.assertTrue(self.structure_changed_event.new)
def test_data_items_updated_item_replaced(self):
self.model.data = TraitList([
DataItem(a=i, b=10*i, c=str(i)) for i in range(10)
])
with self.assertTraitChanges(self.model, "values_changed"):
self.model.data[1] = DataItem(a=100, b=200, c="a string")
self.assertEqual(self.values_changed_event.new, ((1,), (), (1,), ()))
def test_data_items_updated_item_replaced_negative(self):
self.model.data = TraitList([
DataItem(a=i, b=10*i, c=str(i)) for i in range(10)
])
with self.assertTraitChanges(self.model, "values_changed"):
self.model.data[-2] = DataItem(a=100, b=200, c="a string")
self.assertEqual(self.values_changed_event.new, ((8,), (), (8,), ()))
def test_data_items_updated_items_replaced(self):
self.model.data = TraitList([
DataItem(a=i, b=10*i, c=str(i)) for i in range(10)
])
with self.assertTraitChanges(self.model, "values_changed"):
self.model.data[1:3] = [
DataItem(a=100, b=200, c="a string"),
DataItem(a=200, b=300, c="another string"),
]
self.assertEqual(self.values_changed_event.new, ((1,), (), (2,), ()))
def test_data_items_updated_slice_replaced(self):
self.model.data = TraitList([
DataItem(a=i, b=10*i, c=str(i)) for i in range(10)
])
with self.assertTraitChanges(self.model, "values_changed"):
self.model.data[1:4:2] = [
DataItem(a=100, b=200, c="a string"),
DataItem(a=200, b=300, c="another string"),
]
self.assertEqual(self.values_changed_event.new, ((1,), (), (3,), ()))
def test_data_items_updated_reverse_slice_replaced(self):
self.model.data = TraitList([
DataItem(a=i, b=10*i, c=str(i)) for i in range(10)
])
with self.assertTraitChanges(self.model, "values_changed"):
self.model.data[3:1:-1] = [
DataItem(a=100, b=200, c="a string"),
DataItem(a=200, b=300, c="another string"),
]
self.assertEqual(self.values_changed_event.new, ((2,), (), (3,), ()))
def test_row_header_data_updated(self):
with self.assertTraitChanges(self.model, "values_changed"):
self.model.row_header_data = AttributeDataAccessor(attr='b')
self.assertEqual(
self.values_changed_event.new,
((), (), (), ())
)
def test_row_header_data_values_updated(self):
with self.assertTraitChanges(self.model, "values_changed"):
self.model.row_header_data.updated = (self.model.row_header_data, 'value')
self.assertEqual(
self.values_changed_event.new,
((0,), (), (9,), ())
)
def test_row_header_data_title_updated(self):
with self.assertTraitChanges(self.model, "values_changed"):
self.model.row_header_data.updated = (self.model.row_header_data, 'title')
self.assertEqual(
self.values_changed_event.new,
((), (), (), ())
)
def test_no_data_row_header_data_update(self):
model = RowTableDataModel(
row_header_data=AttributeDataAccessor(
attr='a',
value_type=IntValue(),
),
column_data=[
AttributeDataAccessor(
attr='b',
value_type=IntValue(),
),
AttributeDataAccessor(
attr='c',
value_type=TextValue(),
)
]
)
# check that updating accessors is safe with empty data
with self.assertTraitDoesNotChange(model, 'values_changed'):
model.row_header_data.attr = 'b'
def test_column_data_updated(self):
with self.assertTraitChanges(self.model, "structure_changed"):
self.model.column_data = [
AttributeDataAccessor(
attr='c',
value_type=TextValue(),
),
AttributeDataAccessor(
attr='b',
value_type=IntValue(),
),
]
self.assertTrue(self.structure_changed_event.new)
def test_column_data_items_updated(self):
with self.assertTraitChanges(self.model, "structure_changed"):
self.model.column_data.pop()
self.assertTrue(self.structure_changed_event.new)
def test_column_data_value_updated(self):
with self.assertTraitChanges(self.model, "values_changed"):
self.model.column_data[0].updated = (self.model.column_data[0], 'value')
self.assertEqual(
self.values_changed_event.new,
((0,), (0,), (9,), (0,))
)
def test_no_data_column_data_update(self):
model = RowTableDataModel(
row_header_data=AttributeDataAccessor(
attr='a',
value_type=IntValue(),
),
column_data=[
AttributeDataAccessor(
attr='b',
value_type=IntValue(),
),
AttributeDataAccessor(
attr='c',
value_type=TextValue(),
)
]
)
with self.assertTraitDoesNotChange(model, 'values_changed'):
model.column_data[0].attr = 'a'
def test_column_data_title_updated(self):
with self.assertTraitChanges(self.model, "values_changed"):
self.model.column_data[0].updated = (self.model.column_data[0], 'title')
self.assertEqual(
self.values_changed_event.new,
((), (0,), (), (0,))
)
def test_list_tuple_data(self):
data = [
(i, 10*i, str(i)) for i in range(10)
]
model = RowTableDataModel(
data=data,
row_header_data=IndexDataAccessor(
index=0,
value_type=IntValue(),
),
column_data=[
IndexDataAccessor(
index=1,
value_type=IntValue(),
),
IndexDataAccessor(
index=2,
value_type=TextValue(),
)
]
)
for row, column in model.iter_items():
with self.subTest(row=row, column=column):
result = model.get_value(row, column)
if len(row) == 0 and len(column) == 0:
self.assertEqual(result, '0')
elif len(row) == 0:
index = model.column_data[column[0]].index
self.assertEqual(result, str(index))
elif len(column) == 0:
self.assertEqual(result, row[0])
else:
index = model.column_data[column[0]].index
self.assertEqual(
result,
data[row[0]][index]
)
def test_list_dict_data(self):
data = [
{'a': i, 'b': 10*i, 'c': str(i)} for i in range(10)
]
model = RowTableDataModel(
data=data,
row_header_data=KeyDataAccessor(
key='a',
value_type=IntValue(),
),
column_data=[
KeyDataAccessor(
key='b',
value_type=IntValue(),
),
KeyDataAccessor(
key='c',
value_type=TextValue(),
)
]
)
for row, column in model.iter_items():
with self.subTest(row=row, column=column):
result = model.get_value(row, column)
if len(row) == 0 and len(column) == 0:
self.assertEqual(result, 'A')
elif len(row) == 0:
key = model.column_data[column[0]].key
self.assertEqual(result, str(key).title())
elif len(column) == 0:
self.assertEqual(result, data[row[0]]['a'])
else:
key = model.column_data[column[0]].key
self.assertEqual(
result,
data[row[0]][key]
)
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