def test_table_uncertainty_delegate(qtbot, bw2test, monkeypatch):
""" Open the uncertainty delegate to test all related methods within the table.
"""
table = ProjectParameterTable()
qtbot.addWidget(table)
table.add_parameter()
table.sync(table.build_df())
assert isinstance(table.itemDelegateForColumn(3), UncertaintyDelegate)
delegate = UncertaintyDelegate(table)
option = QtWidgets.QStyleOptionViewItem()
option.rect = QtCore.QRect(0, 0, 100, 100)
index = table.proxy_model.index(0, 3)
rect = table.visualRect(index)
qtbot.mouseClick(table.viewport(), QtCore.Qt.LeftButton, pos=rect.center())
editor = delegate.createEditor(table, option, index)
qtbot.addWidget(editor)
# Test displayText
assert delegate.displayText("1", None) == "No uncertainty"
assert delegate.displayText("nan",
None) == "Undefined or unknown uncertainty"
delegate.setEditorData(editor, index)
delegate.setModelData(editor, table.proxy_model, index)
monkeypatch.setattr(QtCore.QModelIndex, "data",
lambda *args, **kwargs: "nan")
delegate.setEditorData(editor, index)
def test_delete_project_param(qtbot):
""" Try and delete project parameters through the tab.
"""
table = ProjectParameterTable()
qtbot.addWidget(table)
table.sync(table.build_df())
# The 2nd parameter cannot be deleted
param = table.get_parameter(table.proxy_model.index(1, 0))
assert not param.is_deletable()
# Delete the 3rd parameter, removing the dependency
table.delete_parameter(table.proxy_model.index(2, 0))
# 2nd parameter can now be deleted, so delete it.
assert param.is_deletable()
table.delete_parameter(table.proxy_model.index(1, 0))
def test_downstream_dependency(qtbot):
""" A database parameter uses a project parameter in its formula.
Means we can't delete it right?
"""
table = ProjectParameterTable()
qtbot.addWidget(table)
table.sync(table.build_df())
# First parameter of the project table is used by the database parameter
param = table.get_parameter(table.proxy_model.index(0, 0))
assert not param.is_deletable()
def test_edit_project_param(qtbot):
""" Edit the existing parameter to have new values.
"""
table = ProjectParameterTable()
qtbot.addWidget(table)
table.sync(table.build_df())
# Edit both the name and the amount of the first parameter.
table.rename_parameter(table.proxy_model.index(0, 0), "test_project")
table.model.setData(table.model.index(0, 1), 2.5)
# Check that parameter is correctly stored in brightway.
assert ProjectParameter.get(name="test_project").amount == 2.5
# Now edit the formula directly (without delegate)
with qtbot.waitSignal(signals.parameters_changed, timeout=1000):
table.model.setData(table.model.index(0, 2), "2 + 3")
assert ProjectParameter.get(name="test_project").amount == 5
# Now edit the formula of the 3rd param to use the 2nd param
with qtbot.waitSignal(signals.parameters_changed, timeout=1000):
table.model.setData(table.model.index(2, 2), "param_2 + 3")
assert ProjectParameter.get(name="param_3").amount == 4