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import sys
import pytest
from pytestqt.qt_compat import qt_api
from pytestqt import modeltest
pytestmark = pytest.mark.usefixtures("qtbot")
class BasicModel(qt_api.QtCore.QAbstractItemModel):
def data(self, index, role=qt_api.QtCore.Qt.ItemDataRole.DisplayRole):
return None
def rowCount(self, parent=qt_api.QtCore.QModelIndex()):
return 0
def columnCount(self, parent=qt_api.QtCore.QModelIndex()):
return 0
def index(self, row, column, parent=qt_api.QtCore.QModelIndex()):
return qt_api.QtCore.QModelIndex()
def parent(self, index):
return qt_api.QtCore.QModelIndex()
def test_standard_item_model(qtmodeltester):
"""
Basic test which uses qtmodeltester with a qt_api.QtGui.QStandardItemModel.
"""
model = qt_api.QtGui.QStandardItemModel()
items = [qt_api.QtGui.QStandardItem(str(i)) for i in range(6)]
model.setItem(0, 0, items[0])
model.setItem(0, 1, items[1])
model.setItem(1, 0, items[2])
model.setItem(1, 1, items[3])
items[0].setChild(0, items[4])
items[4].setChild(0, items[5])
qtmodeltester.check(model, force_py=True)
def test_string_list_model(qtmodeltester):
model = qt_api.QtCore.QStringListModel()
model.setStringList(["hello", "world"])
qtmodeltester.check(model, force_py=True)
def test_sort_filter_proxy_model(qtmodeltester):
model = qt_api.QtCore.QStringListModel()
model.setStringList(["hello", "world"])
proxy = qt_api.QtCore.QSortFilterProxyModel()
proxy.setSourceModel(model)
qtmodeltester.check(proxy, force_py=True)
def test_standard_item_model_zero_columns(qtmodeltester):
model = qt_api.QtGui.QStandardItemModel()
qtmodeltester.check(model, force_py=True)
# QTBUG-92220
model.insertRows(0, 5)
model.removeRows(0, 5)
# QTBUG-92886
model.insertRows(0, 5)
model.removeRows(1, 2)
parent_index = model.index(0, 0)
model.insertRows(0, 5, parent_index)
model.insertRows(1, 2, parent_index)
@pytest.mark.parametrize(
"broken_role",
[
qt_api.QtCore.Qt.ItemDataRole.ToolTipRole,
qt_api.QtCore.Qt.ItemDataRole.StatusTipRole,
qt_api.QtCore.Qt.ItemDataRole.WhatsThisRole,
qt_api.QtCore.Qt.ItemDataRole.SizeHintRole,
qt_api.QtCore.Qt.ItemDataRole.FontRole,
qt_api.QtCore.Qt.ItemDataRole.BackgroundRole,
qt_api.QtCore.Qt.ItemDataRole.ForegroundRole,
qt_api.QtCore.Qt.ItemDataRole.TextAlignmentRole,
qt_api.QtCore.Qt.ItemDataRole.CheckStateRole,
],
)
def test_broken_types(check_model, broken_role):
"""
Check that qtmodeltester correctly captures data() returning invalid
values for various display roles.
"""
class BrokenTypeModel(qt_api.QtCore.QAbstractListModel):
def rowCount(self, parent=qt_api.QtCore.QModelIndex()):
if parent == qt_api.QtCore.QModelIndex():
return 1
else:
return 0
def data(
self,
index=qt_api.QtCore.QModelIndex(),
role=qt_api.QtCore.Qt.ItemDataRole.DisplayRole,
):
if role == broken_role:
return object() # This will fail the type check for any role
else:
return None
check_model(BrokenTypeModel(), should_pass=False)
xfail_py311_pyside2 = pytest.mark.xfail(
sys.version_info[:2] == (3, 11) and qt_api.pytest_qt_api == "pyside2",
reason="Fails to OR mask flags",
)
@pytest.mark.parametrize(
"role_value, should_pass",
[
pytest.param(
qt_api.QtCore.Qt.AlignmentFlag.AlignLeft, True, marks=xfail_py311_pyside2
),
pytest.param(
qt_api.QtCore.Qt.AlignmentFlag.AlignRight, True, marks=xfail_py311_pyside2
),
pytest.param(0xFFFFFF, False, marks=xfail_py311_pyside2),
("foo", False),
(object(), False),
],
)
def test_data_alignment(role_value, should_pass, check_model):
"""Test a custom model which returns a good and alignments from data().
qtmodeltest should capture this problem and fail when that happens.
"""
class MyModel(qt_api.QtCore.QAbstractListModel):
def rowCount(self, parent=qt_api.QtCore.QModelIndex()):
return 1 if parent == qt_api.QtCore.QModelIndex() else 0
def data(
self,
index=qt_api.QtCore.QModelIndex(),
role=qt_api.QtCore.Qt.ItemDataRole.DisplayRole,
):
if role == qt_api.QtCore.Qt.ItemDataRole.TextAlignmentRole:
return role_value
elif role == qt_api.QtCore.Qt.ItemDataRole.DisplayRole:
if index == self.index(0, 0):
return "Hello"
return None
check_model(MyModel(), should_pass=should_pass)
def test_header_handling(check_model):
class MyModel(qt_api.QtCore.QAbstractListModel):
def rowCount(self, parent=qt_api.QtCore.QModelIndex()):
return 1 if parent == qt_api.QtCore.QModelIndex() else 0
def set_header_text(self, header):
self._header_text = header
self.headerDataChanged.emit(qt_api.QtCore.Qt.Orientation.Vertical, 0, 0)
self.headerDataChanged.emit(qt_api.QtCore.Qt.Orientation.Horizontal, 0, 0)
def headerData(
self, section, orientation, role=qt_api.QtCore.Qt.ItemDataRole.DisplayRole
):
return self._header_text
def data(
self,
index=qt_api.QtCore.QModelIndex(),
role=qt_api.QtCore.Qt.ItemDataRole.DisplayRole,
):
if (
role == qt_api.QtCore.Qt.ItemDataRole.DisplayRole
and index == self.index(0, 0)
):
return "Contents"
return None
model = MyModel()
model.set_header_text("Start Header")
check_model(model, should_pass=True)
model.set_header_text("New Header")
@pytest.fixture
def check_model(qtmodeltester):
"""
Return a check_model(model, should_pass=True) function that uses
qtmodeltester to check if the model is OK or not according to the
``should_pass`` parameter.
"""
def check(model, should_pass=True):
if should_pass:
qtmodeltester.check(model, force_py=True)
else:
with pytest.raises(AssertionError):
qtmodeltester.check(model, force_py=True)
return check
def test_invalid_column_count(qtmodeltester):
"""Basic check with an invalid model."""
class Model(BasicModel):
def columnCount(self, parent=qt_api.QtCore.QModelIndex()):
return -1
model = Model()
with pytest.raises(AssertionError):
qtmodeltester.check(model, force_py=True)
def test_changing_model_insert(qtmodeltester):
model = qt_api.QtGui.QStandardItemModel()
item = qt_api.QtGui.QStandardItem("foo")
qtmodeltester.check(model, force_py=True)
model.insertRow(0, item)
def test_changing_model_remove(qtmodeltester):
model = qt_api.QtGui.QStandardItemModel()
item = qt_api.QtGui.QStandardItem("foo")
model.setItem(0, 0, item)
qtmodeltester.check(model, force_py=True)
model.removeRow(0)
def test_changing_model_data(qtmodeltester):
model = qt_api.QtGui.QStandardItemModel()
item = qt_api.QtGui.QStandardItem("foo")
model.setItem(0, 0, item)
qtmodeltester.check(model, force_py=True)
model.setData(model.index(0, 0), "hello world")
@pytest.mark.parametrize(
"orientation",
[qt_api.QtCore.Qt.Orientation.Horizontal, qt_api.QtCore.Qt.Orientation.Vertical],
)
def test_changing_model_header_data(qtmodeltester, orientation):
model = qt_api.QtGui.QStandardItemModel()
item = qt_api.QtGui.QStandardItem("foo")
model.setItem(0, 0, item)
qtmodeltester.check(model, force_py=True)
model.setHeaderData(0, orientation, "blah")
def test_changing_model_sort(qtmodeltester):
"""Sorting emits layoutChanged"""
model = qt_api.QtGui.QStandardItemModel()
item = qt_api.QtGui.QStandardItem("foo")
model.setItem(0, 0, item)
qtmodeltester.check(model, force_py=True)
model.sort(0)
def test_nop(qtmodeltester):
"""We should not get a crash on cleanup with no model."""
def test_overridden_methods(qtmodeltester):
"""Make sure overridden methods of a model are actually run.
With a previous implementation of the modeltester using sip.cast, the custom
implementations did never actually run.
"""
class Model(BasicModel):
def __init__(self, parent=None):
super().__init__(parent)
self.row_count_did_run = False
def rowCount(self, parent=None):
self.row_count_did_run = True
return 0
model = Model()
assert not model.row_count_did_run
qtmodeltester.check(model, force_py=True)
assert model.row_count_did_run
def test_fetch_more(qtmodeltester):
class Model(qt_api.QtGui.QStandardItemModel):
def canFetchMore(self, parent):
return True
def fetchMore(self, parent):
"""Force a re-check while fetching more."""
self.setData(self.index(0, 0), "bar")
model = Model()
item = qt_api.QtGui.QStandardItem("foo")
model.setItem(0, 0, item)
qtmodeltester.check(model, force_py=True)
def test_invalid_parent(qtmodeltester):
class Model(qt_api.QtGui.QStandardItemModel):
def parent(self, index):
if index == self.index(0, 0, parent=self.index(0, 0)):
return self.index(0, 0)
else:
return qt_api.QtCore.QModelIndex()
model = Model()
item = qt_api.QtGui.QStandardItem("foo")
item2 = qt_api.QtGui.QStandardItem("bar")
item3 = qt_api.QtGui.QStandardItem("bar")
model.setItem(0, 0, item)
item.setChild(0, item2)
item2.setChild(0, item3)
with pytest.raises(AssertionError):
qtmodeltester.check(model, force_py=True)
@pytest.mark.skipif(not modeltest.HAS_QT_TESTER, reason="No Qt modeltester available")
def test_qt_tester_valid(testdir):
testdir.makepyfile(
"""
from pytestqt.qt_compat import qt_api
from pytestqt import modeltest
assert modeltest.HAS_QT_TESTER
def test_ok(qtmodeltester):
model = qt_api.QtGui.QStandardItemModel()
qtmodeltester.check(model)
"""
)
res = testdir.inline_run()
res.assertoutcome(passed=1, failed=0)
@pytest.mark.skipif(not modeltest.HAS_QT_TESTER, reason="No Qt modeltester available")
def test_qt_tester_invalid(testdir):
testdir.makeini(
"""
[pytest]
qt_log_level_fail = NO
"""
)
testdir.makepyfile(
"""
from pytestqt.qt_compat import qt_api
from pytestqt import modeltest
assert modeltest.HAS_QT_TESTER
class Model(qt_api.QtCore.QAbstractItemModel):
def data(self, index, role=qt_api.QtCore.Qt.ItemDataRole.DisplayRole):
return None
def rowCount(self, parent=qt_api.QtCore.QModelIndex()):
return 0
def columnCount(self, parent=qt_api.QtCore.QModelIndex()):
return -1
def index(self, row, column, parent=qt_api.QtCore.QModelIndex()):
return qt_api.QtCore.QModelIndex()
def parent(self, index):
return qt_api.QtCore.QModelIndex()
def test_ok(qtmodeltester):
model = Model()
qtmodeltester.check(model)
"""
)
res = testdir.runpytest()
res.stdout.fnmatch_lines(
[
"*__ test_ok __*",
"test_qt_tester_invalid.py:*: Qt modeltester errors",
"*-- Captured Qt messages --*",
"*QtWarningMsg: FAIL! model->columnCount(QModelIndex()) >= 0 () returned FALSE "
"(*qabstractitemmodeltester.cpp:*)",
"*-- Captured stdout call --*",
"modeltest: Using Qt C++ tester",
"*== 1 failed in * ==*",
]
)
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