test_ttkcombobox.py

# encoding: utf-8
import os
import sys
import unittest
import tkinter as tk
import tkinter.ttk as ttk


import fixpath
import pygubu
import support


class TestTtkComobox(unittest.TestCase):
    def setUp(self):
        support.root_deiconify()
        xmldata = "test_ttkcombobox.ui"
        self.builder = builder = pygubu.Builder()
        builder.add_from_file(xmldata)
        self.mainwindow = builder.get_object("mainwindow")
        self.widget = builder.get_object("combobox1")

    def tearDown(self):
        support.root_withdraw()

    def test_class(self):
        self.assertIsInstance(self.widget, ttk.Combobox)
        self.widget.destroy()

    def test_validate(self):
        prop = "validate"
        expected_value = "key"
        tclobj = self.widget.cget(prop)
        value = str(tclobj)
        self.assertEqual(expected_value, value)
        self.widget.destroy()

    def test_validate_command(self):
        valid_values = ("option1", "option2", "option3")

        def cbox_validate(action, newvalue):
            valid = False
            if action == "1":  # 1: insert 0: delete
                if newvalue in valid_values:
                    valid = True
            else:
                valid = True
            return valid

        def cbox_invalid(newvalue):
            pass

        callback = {
            "cbox_validate": cbox_validate,
            "cbox_invalid": cbox_invalid,
        }

        self.builder.connect_callbacks(callback)

        self.widget.delete("0", tk.END)
        self.assertEqual("", self.widget.get())

        self.widget.insert("0", valid_values[0])
        self.assertEqual(valid_values[0], self.widget.get())

        self.widget.delete("0", tk.END)
        self.widget.insert("0", "Invalid value")
        self.assertEqual("", self.widget.get())

        self.widget.destroy()

    def test_invalid_command(self):
        invalid_text = []

        def cbox_validate(action, newvalue):
            valid = False
            if action == "1":  # 1: insert 0: delete
                if newvalue == "Allowed":
                    valid = True
            else:
                valid = True
            return valid

        def cbox_invalid(newvalue):
            invalid_text.append(newvalue)

        callback = {
            "cbox_validate": cbox_validate,
            "cbox_invalid": cbox_invalid,
        }

        self.widget.delete("0", tk.END)

        self.builder.connect_callbacks(callback)

        self.widget.insert("0", "Not Allowed")
        self.assertEqual(invalid_text[0], "Not Allowed")

        self.widget.destroy()