def test_debug(self):
        """
        Make sure the cursor works while debugging 
        
        It might not because the console is "_executing"
        """
        # Kernel client to test the responses of is_complete
        class TestIPyKernelClient(object):
            def is_complete(self, source):
                tm = TransformerManager()
                check_complete = tm.check_complete(source)
                responses.append(check_complete)

        # Initialize widget
        responses = []
        w = ConsoleWidget()
        w._append_plain_text('Header\n')
        w._prompt = 'prompt>'
        w._show_prompt()
        w.kernel_client = TestIPyKernelClient()
        control = w._control

        # Execute incomplete statement inside a block
        code = "%debug range(1)\n"
        w._set_input_buffer(code)
        w.execute(interactive=True)

         # We should be able to move the cursor while debugging
        w._set_input_buffer("abd")
        QTest.keyClick(control, QtCore.Qt.Key_Left)
        QTest.keyClick(control, 'c')
        self.assertEqual(w._get_input_buffer(),"abcd")
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    def test_complete_python(self):
        """Test that is_complete is working correctly for Python."""
        # Kernel client to test the responses of is_complete
        class TestIPyKernelClient(object):
            def is_complete(self, source):
                tm = TransformerManager()
                check_complete = tm.check_complete(source)
                responses.append(check_complete)

        # Initialize widget
        responses = []
        w = ConsoleWidget()
        w._append_plain_text('Header\n')
        w._prompt = 'prompt>'
        w._show_prompt()
        w.kernel_client = TestIPyKernelClient()

        # Execute incomplete statement inside a block
        code = '\n'.join(["if True:", "    a = 1"])
        w._set_input_buffer(code)
        w.execute(interactive=True)
        assert responses == [('incomplete', 4)]

        # Execute complete statement inside a block
        responses = []
        code = '\n'.join(["if True:", "    a = 1\n\n"])
        w._set_input_buffer(code)
        w.execute(interactive=True)
        assert responses == [('complete', None)]
    def test_complete_python(self):
        """Test that is_complete is working correctly for Python."""
        # Kernel client to test the responses of is_complete
        class TestIPyKernelClient(object):
            def is_complete(self, source):
                tm = TransformerManager()
                check_complete = tm.check_complete(source)
                responses.append(check_complete)

        # Initialize widget
        responses = []
        w = ConsoleWidget()
        w._append_plain_text('Header\n')
        w._prompt = 'prompt>'
        w._show_prompt()
        w.kernel_client = TestIPyKernelClient()

        # Execute incomplete statement inside a block
        code = '\n'.join(["if True:", "    a = 1"])
        w._set_input_buffer(code)
        w.execute(interactive=True)
        assert responses == [('incomplete', 4)]

        # Execute complete statement inside a block
        responses = []
        code = '\n'.join(["if True:", "    a = 1\n\n"])
        w._set_input_buffer(code)
        w.execute(interactive=True)
        assert responses == [('complete', None)]
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    def test_select_all(self):
        w = ConsoleWidget()
        w._append_plain_text('Header\n')
        w._prompt = 'prompt>'
        w._show_prompt()
        control = w._control
        app = QtWidgets.QApplication.instance()

        cursor = w._get_cursor()
        w._insert_plain_text_into_buffer(cursor, "if:\n    pass")

        cursor.clearSelection()
        control.setTextCursor(cursor)

        # "select all" action selects cell first
        w.select_all_smart()
        QTest.keyClick(control, QtCore.Qt.Key_C, QtCore.Qt.ControlModifier)
        copied = app.clipboard().text()
        self.assertEqual(copied,  'if:\n>     pass')

        # # "select all" action triggered a second time selects whole document
        w.select_all_smart()
        QTest.keyClick(control, QtCore.Qt.Key_C, QtCore.Qt.ControlModifier)
        copied = app.clipboard().text()
        self.assertEqual(copied,  'Header\nprompt>if:\n>     pass')
    def test_keypresses(self):
        """Test the event handling code for keypresses."""
        w = ConsoleWidget()
        w._append_plain_text('Header\n')
        w._prompt = 'prompt>'
        w._show_prompt()
        control = w._control

        # Test setting the input buffer
        w._set_input_buffer('test input')
        self.assertEqual(w._get_input_buffer(), 'test input')

        # Ctrl+K kills input until EOL
        w._set_input_buffer('test input')
        c = control.textCursor()
        c.setPosition(c.position() - 3)
        control.setTextCursor(c)
        QTest.keyClick(control, QtCore.Qt.Key_K, QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(), 'test in')

        # Ctrl+V pastes
        w._set_input_buffer('test input ')
        QtGui.qApp.clipboard().setText('pasted text')
        QTest.keyClick(control, QtCore.Qt.Key_V, QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(), 'test input pasted text')
        self.assertEqual(control.document().blockCount(), 2)

        # Paste should strip indentation
        w._set_input_buffer('test input ')
        QtGui.qApp.clipboard().setText('    pasted text')
        QTest.keyClick(control, QtCore.Qt.Key_V, QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(), 'test input pasted text')
        self.assertEqual(control.document().blockCount(), 2)

        # Multiline paste, should also show continuation marks
        w._set_input_buffer('test input ')
        QtGui.qApp.clipboard().setText('line1\nline2\nline3')
        QTest.keyClick(control, QtCore.Qt.Key_V, QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         'test input line1\nline2\nline3')
        self.assertEqual(control.document().blockCount(), 4)
        self.assertEqual(control.document().findBlockByNumber(1).text(),
                         'prompt>test input line1')
        self.assertEqual(control.document().findBlockByNumber(2).text(),
                         '> line2')
        self.assertEqual(control.document().findBlockByNumber(3).text(),
                         '> line3')
    def test_indent(self):
        """Test the event handling code for indent/dedent keypresses ."""
        w = ConsoleWidget()
        w._append_plain_text('Header\n')
        w._prompt = 'prompt>'
        w._show_prompt()
        control = w._control

        # TAB with multiline selection should block-indent
        w._set_input_buffer("")
        c = control.textCursor()
        pos=c.position()
        w._set_input_buffer("If 1:\n    pass")
        c.setPosition(pos, QtGui.QTextCursor.KeepAnchor)
        control.setTextCursor(c)
        QTest.keyClick(control, QtCore.Qt.Key_Tab)
        self.assertEqual(w._get_input_buffer(),"    If 1:\n        pass")

        # TAB with multiline selection, should block-indent to next multiple
        # of 4 spaces, if first line has 0 < indent < 4
        w._set_input_buffer("")
        c = control.textCursor()
        pos=c.position()
        w._set_input_buffer(" If 2:\n     pass")
        c.setPosition(pos, QtGui.QTextCursor.KeepAnchor)
        control.setTextCursor(c)
        QTest.keyClick(control, QtCore.Qt.Key_Tab)
        self.assertEqual(w._get_input_buffer(),"    If 2:\n        pass")

        # Shift-TAB with multiline selection should block-dedent
        w._set_input_buffer("")
        c = control.textCursor()
        pos=c.position()
        w._set_input_buffer("    If 3:\n        pass")
        c.setPosition(pos, QtGui.QTextCursor.KeepAnchor)
        control.setTextCursor(c)
        QTest.keyClick(control, QtCore.Qt.Key_Backtab)
        self.assertEqual(w._get_input_buffer(),"If 3:\n    pass")
    def test_indent(self):
        """Test the event handling code for indent/dedent keypresses ."""
        w = ConsoleWidget()
        w._append_plain_text('Header\n')
        w._prompt = 'prompt>'
        w._show_prompt()
        control = w._control

        # TAB with multiline selection should block-indent
        w._set_input_buffer("")
        c = control.textCursor()
        pos = c.position()
        w._set_input_buffer("If 1:\n    pass")
        c.setPosition(pos, QtGui.QTextCursor.KeepAnchor)
        control.setTextCursor(c)
        QTest.keyClick(control, QtCore.Qt.Key_Tab)
        self.assertEqual(w._get_input_buffer(), "    If 1:\n        pass")

        # TAB with multiline selection, should block-indent to next multiple
        # of 4 spaces, if first line has 0 < indent < 4
        w._set_input_buffer("")
        c = control.textCursor()
        pos = c.position()
        w._set_input_buffer(" If 2:\n     pass")
        c.setPosition(pos, QtGui.QTextCursor.KeepAnchor)
        control.setTextCursor(c)
        QTest.keyClick(control, QtCore.Qt.Key_Tab)
        self.assertEqual(w._get_input_buffer(), "    If 2:\n        pass")

        # Shift-TAB with multiline selection should block-dedent
        w._set_input_buffer("")
        c = control.textCursor()
        pos = c.position()
        w._set_input_buffer("    If 3:\n        pass")
        c.setPosition(pos, QtGui.QTextCursor.KeepAnchor)
        control.setTextCursor(c)
        QTest.keyClick(control, QtCore.Qt.Key_Backtab)
        self.assertEqual(w._get_input_buffer(), "If 3:\n    pass")
    def test_select_all(self):
        w = ConsoleWidget()
        w._append_plain_text('Header\n')
        w._prompt = 'prompt>'
        w._show_prompt()
        control = w._control

        cursor = w._get_cursor()
        w._insert_plain_text_into_buffer(cursor, "if:\n    pass")

        cursor.clearSelection()
        control.setTextCursor(cursor)

        # "select all" action selects cell first
        w.select_all_smart()
        QTest.keyClick(control, QtCore.Qt.Key_C, QtCore.Qt.ControlModifier)
        copied = QtGui.qApp.clipboard().text()
        self.assertEqual(copied,  'if:\n>     pass')

        # # "select all" action triggered a second time selects whole document
        w.select_all_smart()
        QTest.keyClick(control, QtCore.Qt.Key_C, QtCore.Qt.ControlModifier)
        copied = QtGui.qApp.clipboard().text()
        self.assertEqual(copied,  'Header\nprompt>if:\n>     pass')
    def test_prompt_cursors(self):
        """Test the cursors that keep track of where the prompt begins and
        ends"""
        w = ConsoleWidget()
        w._prompt = 'prompt>'
        doc = w._control.document()

        # Fill up the QTextEdit area with the maximum number of blocks
        doc.setMaximumBlockCount(10)
        for _ in range(9):
            w._append_plain_text('line\n')

        # Draw the prompt, this should cause the first lines to be deleted
        w._show_prompt()
        self.assertEqual(doc.blockCount(), 10)

        # _prompt_pos should be at the end of the document
        self.assertEqual(w._prompt_pos, w._get_end_pos())

        # _append_before_prompt_pos should be at the beginning of the prompt
        self.assertEqual(w._append_before_prompt_pos,
                         w._prompt_pos - len(w._prompt))

        # insert some more text without drawing a new prompt
        w._append_plain_text('line\n')
        self.assertEqual(w._prompt_pos,
                         w._get_end_pos() - len('line\n'))
        self.assertEqual(w._append_before_prompt_pos,
                         w._prompt_pos - len(w._prompt))

        # redraw the prompt
        w._show_prompt()
        self.assertEqual(w._prompt_pos, w._get_end_pos())
        self.assertEqual(w._append_before_prompt_pos,
                         w._prompt_pos - len(w._prompt))

        # insert some text before the prompt
        w._append_plain_text('line', before_prompt=True)
        self.assertEqual(w._prompt_pos, w._get_end_pos())
        self.assertEqual(w._append_before_prompt_pos,
                         w._prompt_pos - len(w._prompt))
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    def test_prompt_cursors(self):
        """Test the cursors that keep track of where the prompt begins and
        ends"""
        w = ConsoleWidget()
        w._prompt = 'prompt>'
        doc = w._control.document()

        # Fill up the QTextEdit area with the maximum number of blocks
        doc.setMaximumBlockCount(10)
        for _ in range(9):
            w._append_plain_text('line\n')

        # Draw the prompt, this should cause the first lines to be deleted
        w._show_prompt()
        self.assertEqual(doc.blockCount(), 10)

        # _prompt_pos should be at the end of the document
        self.assertEqual(w._prompt_pos, w._get_end_pos())

        # _append_before_prompt_pos should be at the beginning of the prompt
        self.assertEqual(w._append_before_prompt_pos,
                         w._prompt_pos - len(w._prompt))

        # insert some more text without drawing a new prompt
        w._append_plain_text('line\n')
        self.assertEqual(w._prompt_pos,
                         w._get_end_pos() - len('line\n'))
        self.assertEqual(w._append_before_prompt_pos,
                         w._prompt_pos - len(w._prompt))

        # redraw the prompt
        w._show_prompt()
        self.assertEqual(w._prompt_pos, w._get_end_pos())
        self.assertEqual(w._append_before_prompt_pos,
                         w._prompt_pos - len(w._prompt))

        # insert some text before the prompt
        w._append_plain_text('line', before_prompt=True)
        self.assertEqual(w._prompt_pos, w._get_end_pos())
        self.assertEqual(w._append_before_prompt_pos,
                         w._prompt_pos - len(w._prompt))
    def test_keypresses(self):
        """Test the event handling code for keypresses."""
        w = ConsoleWidget()
        w._append_plain_text('Header\n')
        w._prompt = 'prompt>'
        w._show_prompt()
        control = w._control

        # Test setting the input buffer
        w._set_input_buffer('test input')
        self.assertEqual(w._get_input_buffer(), 'test input')

        # Ctrl+K kills input until EOL
        w._set_input_buffer('test input')
        c = control.textCursor()
        c.setPosition(c.position() - 3)
        control.setTextCursor(c)
        QTest.keyClick(control, QtCore.Qt.Key_K, QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(), 'test in')

        # Ctrl+V pastes
        w._set_input_buffer('test input ')
        QtGui.qApp.clipboard().setText('pasted text')
        QTest.keyClick(control, QtCore.Qt.Key_V, QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(), 'test input pasted text')
        self.assertEqual(control.document().blockCount(), 2)

        # Paste should strip indentation
        w._set_input_buffer('test input ')
        QtGui.qApp.clipboard().setText('    pasted text')
        QTest.keyClick(control, QtCore.Qt.Key_V, QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(), 'test input pasted text')
        self.assertEqual(control.document().blockCount(), 2)

        # Multiline paste, should also show continuation marks
        w._set_input_buffer('test input ')
        QtGui.qApp.clipboard().setText('line1\nline2\nline3')
        QTest.keyClick(control, QtCore.Qt.Key_V, QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         'test input line1\nline2\nline3')
        self.assertEqual(control.document().blockCount(), 4)
        self.assertEqual(control.document().findBlockByNumber(1).text(),
                         'prompt>test input line1')
        self.assertEqual(control.document().findBlockByNumber(2).text(),
                         '> line2')
        self.assertEqual(control.document().findBlockByNumber(3).text(),
                         '> line3')

        # Multiline paste should strip indentation intelligently
        # in the case where pasted text has leading whitespace on first line
        # and we're pasting into indented position
        w._set_input_buffer('    ')
        QtGui.qApp.clipboard().setText('    If 1:\n        pass')
        QTest.keyClick(control, QtCore.Qt.Key_V, QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         '    If 1:\n        pass')

        # Ctrl+Backspace should intelligently remove the last word
        w._set_input_buffer("foo = ['foo', 'foo', 'foo',    \n"
                            "       'bar', 'bar', 'bar']")
        QTest.keyClick(control, QtCore.Qt.Key_Backspace,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         ("foo = ['foo', 'foo', 'foo',    \n"
                            "       'bar', 'bar', '"))
        QTest.keyClick(control, QtCore.Qt.Key_Backspace,
                       QtCore.Qt.ControlModifier)
        QTest.keyClick(control, QtCore.Qt.Key_Backspace,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         ("foo = ['foo', 'foo', 'foo',    \n"
                          "       '"))
        QTest.keyClick(control, QtCore.Qt.Key_Backspace,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         ("foo = ['foo', 'foo', 'foo',    \n"
                          ""))
        QTest.keyClick(control, QtCore.Qt.Key_Backspace,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         "foo = ['foo', 'foo', 'foo',")

        # Ctrl+Delete should intelligently remove the next word
        w._set_input_buffer("foo = ['foo', 'foo', 'foo',    \n"
                            "       'bar', 'bar', 'bar']")
        c = control.textCursor()
        c.setPosition(35)
        control.setTextCursor(c)
        QTest.keyClick(control, QtCore.Qt.Key_Delete,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         ("foo = ['foo', 'foo', ',    \n"
                          "       'bar', 'bar', 'bar']"))
        QTest.keyClick(control, QtCore.Qt.Key_Delete,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         ("foo = ['foo', 'foo', \n"
                          "       'bar', 'bar', 'bar']"))
        QTest.keyClick(control, QtCore.Qt.Key_Delete,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         "foo = ['foo', 'foo', 'bar', 'bar', 'bar']")
        w._set_input_buffer("foo = ['foo', 'foo', 'foo',    \n"
                            "       'bar', 'bar', 'bar']")
        c = control.textCursor()
        c.setPosition(48)
        control.setTextCursor(c)
        QTest.keyClick(control, QtCore.Qt.Key_Delete,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         ("foo = ['foo', 'foo', 'foo',    \n"
                          "'bar', 'bar', 'bar']"))

        # Left and right keys should respect the continuation prompt
        w._set_input_buffer("line 1\n"
                            "line 2\n"
                            "line 3")
        c = control.textCursor()
        c.setPosition(20)  # End of line 1
        control.setTextCursor(c)
        QTest.keyClick(control, QtCore.Qt.Key_Right)
        # Cursor should have moved after the continuation prompt
        self.assertEqual(control.textCursor().position(), 23)
        QTest.keyClick(control, QtCore.Qt.Key_Left)
        # Cursor should have moved to the end of the previous line
        self.assertEqual(control.textCursor().position(), 20)
    def test_keypresses(self):
        """Test the event handling code for keypresses."""
        w = ConsoleWidget()
        w._append_plain_text('Header\n')
        w._prompt = 'prompt>'
        w._show_prompt()
        control = w._control

        # Test setting the input buffer
        w._set_input_buffer('test input')
        self.assertEqual(w._get_input_buffer(), 'test input')

        # Ctrl+K kills input until EOL
        w._set_input_buffer('test input')
        c = control.textCursor()
        c.setPosition(c.position() - 3)
        control.setTextCursor(c)
        QTest.keyClick(control, QtCore.Qt.Key_K, QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(), 'test in')

        # Ctrl+V pastes
        w._set_input_buffer('test input ')
        QtGui.qApp.clipboard().setText('pasted text')
        QTest.keyClick(control, QtCore.Qt.Key_V, QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(), 'test input pasted text')
        self.assertEqual(control.document().blockCount(), 2)

        # Paste should strip indentation
        w._set_input_buffer('test input ')
        QtGui.qApp.clipboard().setText('    pasted text')
        QTest.keyClick(control, QtCore.Qt.Key_V, QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(), 'test input pasted text')
        self.assertEqual(control.document().blockCount(), 2)

        # Multiline paste, should also show continuation marks
        w._set_input_buffer('test input ')
        QtGui.qApp.clipboard().setText('line1\nline2\nline3')
        QTest.keyClick(control, QtCore.Qt.Key_V, QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         'test input line1\nline2\nline3')
        self.assertEqual(control.document().blockCount(), 4)
        self.assertEqual(control.document().findBlockByNumber(1).text(),
                         'prompt>test input line1')
        self.assertEqual(control.document().findBlockByNumber(2).text(),
                         '> line2')
        self.assertEqual(control.document().findBlockByNumber(3).text(),
                         '> line3')

        # Multiline paste should strip indentation intelligently
        # in the case where pasted text has leading whitespace on first line
        # and we're pasting into indented position
        w._set_input_buffer('    ')
        QtGui.qApp.clipboard().setText('    If 1:\n        pass')
        QTest.keyClick(control, QtCore.Qt.Key_V, QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(), '    If 1:\n        pass')

        # Ctrl+Backspace should intelligently remove the last word
        w._set_input_buffer("foo = ['foo', 'foo', 'foo',    \n"
                            "       'bar', 'bar', 'bar']")
        QTest.keyClick(control, QtCore.Qt.Key_Backspace,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         ("foo = ['foo', 'foo', 'foo',    \n"
                          "       'bar', 'bar', '"))
        QTest.keyClick(control, QtCore.Qt.Key_Backspace,
                       QtCore.Qt.ControlModifier)
        QTest.keyClick(control, QtCore.Qt.Key_Backspace,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         ("foo = ['foo', 'foo', 'foo',    \n"
                          "       '"))
        QTest.keyClick(control, QtCore.Qt.Key_Backspace,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         ("foo = ['foo', 'foo', 'foo',    \n"
                          ""))
        QTest.keyClick(control, QtCore.Qt.Key_Backspace,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(), "foo = ['foo', 'foo', 'foo',")

        # Ctrl+Delete should intelligently remove the next word
        w._set_input_buffer("foo = ['foo', 'foo', 'foo',    \n"
                            "       'bar', 'bar', 'bar']")
        c = control.textCursor()
        c.setPosition(35)
        control.setTextCursor(c)
        QTest.keyClick(control, QtCore.Qt.Key_Delete,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         ("foo = ['foo', 'foo', ',    \n"
                          "       'bar', 'bar', 'bar']"))
        QTest.keyClick(control, QtCore.Qt.Key_Delete,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         ("foo = ['foo', 'foo', \n"
                          "       'bar', 'bar', 'bar']"))
        QTest.keyClick(control, QtCore.Qt.Key_Delete,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         "foo = ['foo', 'foo', 'bar', 'bar', 'bar']")
        w._set_input_buffer("foo = ['foo', 'foo', 'foo',    \n"
                            "       'bar', 'bar', 'bar']")
        c = control.textCursor()
        c.setPosition(48)
        control.setTextCursor(c)
        QTest.keyClick(control, QtCore.Qt.Key_Delete,
                       QtCore.Qt.ControlModifier)
        self.assertEqual(w._get_input_buffer(),
                         ("foo = ['foo', 'foo', 'foo',    \n"
                          "'bar', 'bar', 'bar']"))

        # Left and right keys should respect the continuation prompt
        w._set_input_buffer("line 1\n" "line 2\n" "line 3")
        c = control.textCursor()
        c.setPosition(20)  # End of line 1
        control.setTextCursor(c)
        QTest.keyClick(control, QtCore.Qt.Key_Right)
        # Cursor should have moved after the continuation prompt
        self.assertEqual(control.textCursor().position(), 23)
        QTest.keyClick(control, QtCore.Qt.Key_Left)
        # Cursor should have moved to the end of the previous line
        self.assertEqual(control.textCursor().position(), 20)