Fix #896 and write tests for the form

openlp/core/ui/serviceitemeditform.py

@@ -59,11 +59,10 @@ class ServiceItemEditForm(QtWidgets.QDialog, Ui_ServiceItemEditDialog, RegistryP
         Get the modified service item.
         """
         if self.data:
+            # self.data is only true for images
             self.item.slides = []
-            if self.item.is_image():
             for item in self.item_list:
                 self.item.add_from_image(item['path'], item['title'])
-            self.item.render()
         return self.item
 
     def load_data(self):

tests/openlp_core/ui/test_serviceitemeditform.py

@@ -0,0 +1,273 @@
+# -*- coding: utf-8 -*-
+
+##########################################################################
+# OpenLP - Open Source Lyrics Projection                                 #
+# ---------------------------------------------------------------------- #
+# Copyright (c) 2008-2021 OpenLP Developers                              #
+# ---------------------------------------------------------------------- #
+# This program is free software: you can redistribute it and/or modify   #
+# it under the terms of the GNU General Public License as published by   #
+# the Free Software Foundation, either version 3 of the License, or      #
+# (at your option) any later version.                                    #
+#                                                                        #
+# This program is distributed in the hope that it will be useful,        #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of         #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          #
+# GNU General Public License for more details.                           #
+#                                                                        #
+# You should have received a copy of the GNU General Public License      #
+# along with this program.  If not, see <https://www.gnu.org/licenses/>. #
+##########################################################################
+"""
+Package to test the :mod:`~openlp.core.ui.serviceitemeditform` package.
+"""
+import pytest
+from unittest.mock import MagicMock, call, patch
+
+from PyQt5 import QtCore, QtTest
+
+from openlp.core.ui.serviceitemeditform import ServiceItemEditForm
+
+
+@pytest.fixture
+def form(settings):
+    frm = ServiceItemEditForm()
+    return frm
+
+
+def test_basic_display(form):
+    """Test that the ServiceItemEditForm is displayed"""
+    # GIVEN: A dialog
+    # WHEN: Displaying the UI
+    with patch('openlp.core.ui.serviceitemeditform.QtWidgets.QDialog.exec'):
+        form.exec()
+    ok_widget = form.button_box.button(form.button_box.Save)
+    QtTest.QTest.mouseClick(ok_widget, QtCore.Qt.LeftButton)
+
+    # THEN: Everything should be fine
+    assert form.item_list == [], 'The item list should be empty'
+
+
+def test_set_service_item(form):
+    """Test that the ServiceItemEditForm.set_service_item() method works correctly"""
+    # GIVEN: A form with some methods mocked out
+    mocked_item = MagicMock(**{'is_image.return_value': True, 'slides': ['slide1.jpg']})
+    form.load_data = MagicMock()
+    form.list_widget.setCurrentItem = MagicMock()
+
+    # WHEN: set_service_item() is called
+    form.set_service_item(mocked_item)
+
+    # THEN: The item should be set and the correct methods called
+    assert form.item is mocked_item, 'form.item should be mocked_item'
+    mocked_item.is_image.assert_called_once_with()
+    assert form.data is True, 'The data attribute should be true'
+    assert form.item_list == ['slide1.jpg'], 'form.item_list should be a list of 1 item'
+    form.load_data.assert_called_once_with()
+    form.list_widget.setCurrentItem.assert_called_once_with(None)
+
+
+def test_get_service_item(form):
+    """Test that the ServiceItemEditForm.get_service_item() works correctly"""
+    # GIVEN: A form with some methods mocked out
+    form.data = True
+    form.item = MagicMock(slides=['slide1.jpg', 'slide2.jpg'])
+    form.item_list = [
+        {'path': '../slide1.jpg', 'title': 'slide1.jpg'},
+        {'path': '../slide2.jpg', 'title': 'slide2.jpg'}
+    ]
+
+    # WHEN: get_service_item() is called
+    item = form.get_service_item()
+
+    # THEN: The item should be returned and the correct methods called
+    assert item is form.item, 'The returned item should be form.item'
+    # FYI: list should be empty because it was cleared but never filled again due to the mock
+    assert item.slides == [], 'The list of slides should have been cleared'
+    assert item.add_from_image.call_args_list == [call('../slide1.jpg', 'slide1.jpg'),
+                                                  call('../slide2.jpg', 'slide2.jpg')]
+
+
+@patch('openlp.core.ui.serviceitemeditform.QtWidgets.QListWidgetItem')
+def test_load_data(MockQListWidgetItem, form):
+    """Test that the ServiceItemEditForm.load_data() works correctly"""
+    # GIVEN: A form with some methods mocked out
+    MockQListWidgetItem.side_effect = lambda x: x
+    form.list_widget.clear = MagicMock()
+    form.list_widget.addItem = MagicMock()
+    form.item_list = [
+        {'path': '../slide1.jpg', 'title': 'slide1.jpg'},
+        {'path': '../slide2.jpg', 'title': 'slide2.jpg'}
+    ]
+
+    # WHEN: load_data() is called
+    form.load_data()
+
+    # THEN: The list widget should have the correct items added
+    form.list_widget.clear.assert_called_once_with()
+    assert form.list_widget.addItem.call_args_list == [call('slide1.jpg'), call('slide2.jpg')]
+
+
+def test_on_delete_button_clicked_no_item(form):
+    """Test that nothing happens when the delete button is clicked but no item is selected"""
+    # GIVEN: A form with the currentItem() method mocked
+    form.list_widget.currentItem = MagicMock(return_value=None)
+    form.list_widget.row = MagicMock()
+
+    # WHEN: on_delete_button_clicked() is called but no items are selected
+    form.on_delete_button_clicked()
+
+    # THEN: Nothing should have happened
+    assert form.list_widget.row.call_count == 0, 'The row method should not have been called'
+
+
+def test_on_delete_button_clicked(form):
+    """Test that clicking the delete button removes a row from the list"""
+    # GIVEN: A form with some items mocked out
+    mocked_list_item = MagicMock()
+    form.item_list = ['slide1', 'slide2']
+    form.list_widget.currentItem = MagicMock(return_value=mocked_list_item)
+    form.list_widget.row = MagicMock(return_value=1)
+    form.load_data = MagicMock()
+    form.list_widget.count = MagicMock(return_value=1)
+    form.list_widget.setCurrentRow = MagicMock()
+
+    # WHEN: on_delete_button_clicked() is called
+    form.on_delete_button_clicked()
+
+    # THEN: The correct methods should have been called
+    form.list_widget.currentItem.assert_called_once_with()
+    form.list_widget.row.assert_called_once_with(mocked_list_item)
+    assert form.item_list == ['slide1'], 'There should be only 1 slide in the list'
+    form.load_data.assert_called_once_with()
+    form.list_widget.count.assert_called_once_with()
+    form.list_widget.setCurrentRow.assert_called_once_with(0)
+
+
+def test_on_up_button_clicked(form):
+    """Test that the the up button click calls the correct method"""
+    # GIVEN: A form with a mocked out method
+    form._ServiceItemEditForm__move_item = MagicMock()
+
+    # WHEN: The event handler is called
+    form.on_up_button_clicked()
+
+    # THEN: The method should be called correctly
+    form._ServiceItemEditForm__move_item.assert_called_once_with('up')
+
+
+def test_on_down_button_clicked(form):
+    """Test that the the down button click calls the correct method"""
+    # GIVEN: A form with a mocked out method
+    form._ServiceItemEditForm__move_item = MagicMock()
+
+    # WHEN: The event handler is called
+    form.on_down_button_clicked()
+
+    # THEN: The method should be called correctly
+    form._ServiceItemEditForm__move_item.assert_called_once_with('down')
+
+
+def test_move_item_no_direction(form):
+    """Test that the __move_item() method exits early if no direction is specified"""
+    # GIVEN: A form with am ocked out method
+    form.list_widget.currentItem = MagicMock()
+
+    # WHEN: __move_item() is called without a direction
+    form._ServiceItemEditForm__move_item()
+
+    # THEN: The method should exit early, thus currentItem() should not have been called
+    assert form.list_widget.currentItem.call_count == 0, 'currentItem() should not have been called'
+
+
+def test_move_item_no_item(form):
+    """Test that the __move_item() method exits early if no item in the list is selected"""
+    # GIVEN: A form with am ocked out method
+    form.list_widget.currentItem = MagicMock(return_value=None)
+    form.list_widget.row = MagicMock()
+
+    # WHEN: __move_item() is called with a direction
+    form._ServiceItemEditForm__move_item('up')
+
+    # THEN: The method should exit early, thus row() should not have been called
+    assert form.list_widget.row.call_count == 0, 'row() should not have been called'
+
+
+def test_move_item_up(form):
+    """Test that the __move_item() method moves an item up"""
+    # GIVEN: A form with am ocked out method
+    mocked_list_item = MagicMock()
+    form.item_list = ['slide1', 'slide2']
+    form.list_widget.currentItem = MagicMock(return_value=mocked_list_item)
+    form.list_widget.row = MagicMock(return_value=1)
+    form.load_data = MagicMock()
+    form.list_widget.setCurrentRow = MagicMock()
+
+    # WHEN: __move_item() is called with the direction set to "up"
+    form._ServiceItemEditForm__move_item('up')
+
+    # THEN: The internal list should be swapped around, and other methods should have been called
+    assert form.item_list == ['slide2', 'slide1'], 'The list should be swapped around'
+    form.list_widget.setCurrentRow.assert_called_once_with(0)
+
+
+def test_move_item_down(form):
+    """Test that the __move_item() method moves an item down"""
+    # GIVEN: A form with am ocked out method
+    mocked_list_item = MagicMock()
+    form.item_list = ['slide1', 'slide2']
+    form.list_widget.currentItem = MagicMock(return_value=mocked_list_item)
+    form.list_widget.row = MagicMock(return_value=0)
+    form.load_data = MagicMock()
+    form.list_widget.setCurrentRow = MagicMock()
+
+    # WHEN: __move_item() is called with the direction set to "up"
+    form._ServiceItemEditForm__move_item('down')
+
+    # THEN: The internal list should be swapped around, and other methods should have been called
+    assert form.item_list == ['slide2', 'slide1'], 'The list should be swapped around'
+    form.list_widget.setCurrentRow.assert_called_once_with(1)
+
+
+def test_on_current_row_changed_no_selection(form):
+    """Test that all buttons are disabled when there is no selected item"""
+    # GIVEN: A form and a row of -1
+    row = -1
+
+    # WHEN: on_current_row_changed() is called with the row
+    form.on_current_row_changed(row)
+
+    # THEN: All the buttons should be disabled
+    assert form.down_button.isEnabled() is False, 'Down button should be disabled'
+    assert form.up_button.isEnabled() is False, 'Up button should be disabled'
+    assert form.delete_button.isEnabled() is False, 'Delete button should be disabled'
+
+
+def test_on_current_row_changed_end_of_list(form):
+    """Test that the down button is disabled at the end of the list"""
+    # GIVEN: A form with a couple of mocked methods and a row of 5
+    row = 5
+    form.list_widget.count = MagicMock(return_value=6)
+
+    # WHEN: on_current_row_changed() is called with the row
+    form.on_current_row_changed(row)
+
+    # THEN: Down button should be disabled, up and delete should be enabled
+    assert form.down_button.isEnabled() is False, 'Down button should be disabled'
+    assert form.up_button.isEnabled() is True, 'Up button should be enabled'
+    assert form.delete_button.isEnabled() is True, 'Delete button should be enabled'
+
+
+def test_on_current_row_changed_beginning_of_list(form):
+    """Test that the up button is disabled at the top of the list"""
+    # GIVEN: A form with a couple of mocked methods and a row of 0
+    row = 0
+    form.list_widget.count = MagicMock(return_value=6)
+
+    # WHEN: on_current_row_changed() is called with the row
+    form.on_current_row_changed(row)
+
+    # THEN: Up button should be disabled, down and delete should be enabled
+    assert form.down_button.isEnabled() is True, 'Down button should be enabled'
+    assert form.up_button.isEnabled() is False, 'Up button should be disabled'
+    assert form.delete_button.isEnabled() is True, 'Delete button should be enabled'

tests/openlp_core/ui/test_servicenotedialog.py

@@ -29,7 +29,7 @@ from PyQt5 import QtCore, QtTest
 from openlp.core.ui.servicenoteform import ServiceNoteForm
 
 
-@pytest.fixture()
+@pytest.fixture
 def form(settings):
     frm = ServiceNoteForm()
     return frm
@@ -43,7 +43,7 @@ def test_basic_display(form):
     form.text_edit.setPlainText('')
 
     # WHEN displaying the UI and pressing enter
-    with patch('PyQt5.QtWidgets.QDialog.exec'):
+    with patch('openlp.core.ui.servicenoteform.QtWidgets.QDialog.exec'):
         form.exec()
     ok_widget = form.button_box.button(form.button_box.Save)
     QtTest.QTest.mouseClick(ok_widget, QtCore.Qt.LeftButton)
@@ -54,7 +54,7 @@ def test_basic_display(form):
     # WHEN displaying the UI, having set the text and pressing enter
     text = 'OpenLP is the best worship software'
     form.text_edit.setPlainText(text)
-    with patch('PyQt5.QtWidgets.QDialog.exec'):
+    with patch('openlp.core.ui.servicenoteform.QtWidgets.QDialog.exec'):
         form.exec()
     ok_widget = form.button_box.button(form.button_box.Save)
     QtTest.QTest.mouseClick(ok_widget, QtCore.Qt.LeftButton)
@@ -64,7 +64,7 @@ def test_basic_display(form):
 
     # WHEN displaying the UI, having set the text and pressing enter
     form.text_edit.setPlainText('')
-    with patch('PyQt5.QtWidgets.QDialog.exec'):
+    with patch('openlp.core.ui.servicenoteform.QtWidgets.QDialog.exec'):
         form.exec()
         form.text_edit.setPlainText(text)
     ok_widget = form.button_box.button(form.button_box.Save)