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from datetime import datetime
import pytest
from numpy import datetime64
from unittest.mock import MagicMock
from echo import CallbackProperty
from echo.qt.tests.helpers import SKIP_QT_TEST
if SKIP_QT_TEST:
pytest.skip(allow_module_level=True)
from qtpy import QtWidgets
from qtpy.QtCore import QDateTime, Qt
from echo.qt.connect import (connect_checkable_button, connect_datetime, connect_text,
connect_combo_data, connect_combo_text,
connect_float_text, connect_value, connect_button,
UserDataWrapper)
def test_connect_checkable_button():
class Test(object):
a = CallbackProperty()
b = CallbackProperty(True)
t = Test()
box1 = QtWidgets.QCheckBox()
c1 = connect_checkable_button(t, 'a', box1) # noqa
box1.setChecked(True)
assert t.a
box1.setChecked(False)
assert not t.a
t.a = True
assert box1.isChecked()
t.a = False
assert not box1.isChecked()
# Make sure that the default value of the callback property is recognized
box2 = QtWidgets.QCheckBox()
connect_checkable_button(t, 'b', box2)
assert box2.isChecked()
def test_connect_text():
class Test(object):
a = CallbackProperty()
b = CallbackProperty()
t = Test()
box = QtWidgets.QLineEdit()
c1 = connect_text(t, 'a', box) # noqa
label = QtWidgets.QLabel()
c2 = connect_text(t, 'b', label) # noqa
box.setText('test1')
box.editingFinished.emit()
assert t.a == 'test1'
t.a = 'test3'
assert box.text() == 'test3'
t.b = 'test4'
assert label.text() == 'test4'
def test_connect_combo():
class Test(object):
a = CallbackProperty()
b = CallbackProperty()
t = Test()
combo = QtWidgets.QComboBox()
combo.addItem('label1', UserDataWrapper(4))
combo.addItem('label2', UserDataWrapper(3.5))
c1 = connect_combo_text(t, 'a', combo) # noqa
c2 = connect_combo_data(t, 'b', combo) # noqa
combo.setCurrentIndex(1)
assert t.a == 'label2'
assert t.b == 3.5
combo.setCurrentIndex(0)
assert t.a == 'label1'
assert t.b == 4
combo.setCurrentIndex(-1)
assert t.a is None
assert t.b is None
t.a = 'label2'
assert combo.currentIndex() == 1
t.a = 'label1'
assert combo.currentIndex() == 0
with pytest.raises(ValueError) as exc:
t.a = 'label3'
assert exc.value.args[0] == 'label3 not found in combo box'
t.a = None
assert combo.currentIndex() == -1
t.b = 3.5
assert combo.currentIndex() == 1
t.b = 4
assert combo.currentIndex() == 0
with pytest.raises(ValueError) as exc:
t.b = 2
assert exc.value.args[0] == '2 not found in combo box'
t.b = None
assert combo.currentIndex() == -1
def test_connect_float_text():
class Test(object):
a = CallbackProperty()
b = CallbackProperty()
c = CallbackProperty()
t = Test()
line1 = QtWidgets.QLineEdit()
line2 = QtWidgets.QLineEdit()
line3 = QtWidgets.QLabel()
def fmt_func(x):
return str(int(round(x)))
c1 = connect_float_text(t, 'a', line1) # noqa
c2 = connect_float_text(t, 'b', line2, fmt="{:5.2f}") # noqa
c3 = connect_float_text(t, 'c', line3, fmt=fmt_func) # noqa
for line in (line1, line2):
line1.setText('1.0')
line1.editingFinished.emit()
assert t.a == 1.0
line1.setText('banana')
line1.editingFinished.emit()
assert t.a == 0.0
t.a = 3.
assert line1.text() == '3'
t.b = 5.211
assert line2.text() == ' 5.21'
t.c = -2.222
assert line3.text() == '-2'
def test_connect_value():
class Test(object):
a = CallbackProperty()
b = CallbackProperty()
c = CallbackProperty()
t = Test()
slider = QtWidgets.QSlider()
slider.setMinimum(0)
slider.setMaximum(100)
c1 = connect_value(t, 'a', slider) # noqa
c2 = connect_value(t, 'b', slider, value_range=(0, 10)) # noqa
with pytest.raises(Exception) as exc:
connect_value(t, 'c', slider, log=True)
assert exc.value.args[0] == "log option can only be set if value_range is given"
c3 = connect_value(t, 'c', slider, value_range=(0.01, 100), log=True) # noqa
slider.setValue(25)
assert t.a == 25
assert t.b == 2.5
assert t.c == 0.1
t.a = 30
assert slider.value() == 30
t.b = 8.5
assert slider.value() == 85
t.c = 10
assert slider.value() == 75
def test_connect_button():
class Example(object):
a = MagicMock()
e = Example()
button = QtWidgets.QPushButton('OK')
connect_button(e, 'a', button)
assert e.a.call_count == 0
button.clicked.emit()
assert e.a.call_count == 1
def test_connect_datetime():
class Example(object):
t = CallbackProperty()
e = Example()
widget = QtWidgets.QDateTimeEdit()
widget.setTimeSpec(Qt.TimeSpec.UTC)
conn = connect_datetime(e, 't', widget) # noqa
dt = datetime(2010, 5, 7, 13, 15, 3)
qdt = QDateTime(dt.date(), dt.time(), Qt.TimeSpec.UTC)
widget.setDateTime(qdt)
widget.dateTimeChanged.emit(qdt)
assert dt == e.t.item()
dt = datetime(2020, 3, 4, 7, 48, 16)
e.t = datetime64(dt)
assert widget.dateTime().toUTC().toPython() == dt
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