"""
Package to test the openlp.plugins.songs.forms.editverseform package.
"""
from unittest import TestCase

from PyQt4 import QtCore, QtGui, QtTest

from openlp.core.common import Registry
from openlp.plugins.songs.forms.editverseform import EditVerseForm


class TestEditVerseForm(TestCase):
    """
    Test the EditVerseForm class
    """

    def setUp(self):
        """
        Create the UI
        """
        Registry.create()
        old_app_instance = QtCore.QCoreApplication.instance()
        if old_app_instance is None:
            self.app = QtGui.QApplication([])
        else:
            self.app = old_app_instance
        self.main_window = QtGui.QMainWindow()
        Registry().register('main_window', self.main_window)
        self.form = EditVerseForm()

    def tearDown(self):
        """
        Delete all the C++ objects at the end so that we don't have a segfault
        """
        del self.form
        del self.main_window

    def ui_defaults_test(self):
        """
        Test the EditVerseForm defaults are correct
        """
        # GIVEN: An EditVerseForm instance
        # WHEN: The form is shown
        # THEN: The default value is correct
        self.assertEqual(self.form.verse_text_edit.toPlainText(), '', 'The verse edit box is empty.')

    def type_verse_text_tests(self):
        """
        Test that typing into the verse text edit box returns the correct text
        """
        # GIVEN: An instance of the EditVerseForm and some text to type
        text = 'Amazing Grace, how sweet the sound!'

        # WHEN: Some verse text is typed into the text edit
        QtTest.QTest.keyClicks(self.form.verse_text_edit, text)

        # THEN: The verse text edit should have the verse text in it
        self.assertEqual(text, self.form.verse_text_edit.toPlainText(),
                         'The verse text edit should have the typed out verse')

    def insert_verse_test(self):
        """
        Test that clicking the insert button inserts the correct verse marker
        """
        # GIVEN: An instance of the EditVerseForm
        # WHEN: The Insert button is clicked
        QtTest.QTest.mouseClick(self.form.insert_button, QtCore.Qt.LeftButton)

        # THEN: The verse text edit should have a Verse:1 in it
        self.assertIn('---[Verse:1]---', self.form.verse_text_edit.toPlainText(),
                      'The verse text edit should have a verse marker')

    def insert_verse_2_test(self):
        """
        Test that clicking the up button on the spin box and then clicking the insert button inserts the correct marker
        """
        # GIVEN: An instance of the EditVerseForm
        # WHEN: The spin button and then the Insert button are clicked
        QtTest.QTest.keyClick(self.form.verse_number_box, QtCore.Qt.Key_Up)
        QtTest.QTest.mouseClick(self.form.insert_button, QtCore.Qt.LeftButton)

        # THEN: The verse text edit should have a Verse:1 in it
        self.assertIn('---[Verse:2]---', self.form.verse_text_edit.toPlainText(),
                      'The verse text edit should have a "Verse 2" marker')

    def insert_chorus_test(self):
        """
        Test that clicking the verse type combo box and then clicking the insert button inserts the correct marker
        """
        # GIVEN: An instance of the EditVerseForm
        # WHEN: The verse type combo box and then the Insert button are clicked
        QtTest.QTest.keyClick(self.form.verse_type_combo_box, QtCore.Qt.Key_Down)
        QtTest.QTest.mouseClick(self.form.insert_button, QtCore.Qt.LeftButton)

        # THEN: The verse text edit should have a Chorus:1 in it
        self.assertIn('---[Chorus:1]---', self.form.verse_text_edit.toPlainText(),
                      'The verse text edit should have a "Chorus 1" marker')