| import unittest |
| |
| from Tkinter import (Variable, StringVar, IntVar, DoubleVar, BooleanVar, Tcl, |
| TclError) |
| |
| |
| class TestBase(unittest.TestCase): |
| |
| def setUp(self): |
| self.root = Tcl() |
| |
| def tearDown(self): |
| del self.root |
| |
| |
| class TestVariable(TestBase): |
| |
| def info_exists(self, *args): |
| return self.root.getboolean(self.root.call("info", "exists", *args)) |
| |
| def test_default(self): |
| v = Variable(self.root) |
| self.assertEqual("", v.get()) |
| self.assertRegexpMatches(str(v), r"^PY_VAR(\d+)$") |
| |
| def test_name_and_value(self): |
| v = Variable(self.root, "sample string", "varname") |
| self.assertEqual("sample string", v.get()) |
| self.assertEqual("varname", str(v)) |
| |
| def test___del__(self): |
| self.assertFalse(self.info_exists("varname")) |
| v = Variable(self.root, "sample string", "varname") |
| self.assertTrue(self.info_exists("varname")) |
| del v |
| self.assertFalse(self.info_exists("varname")) |
| |
| def test_dont_unset_not_existing(self): |
| self.assertFalse(self.info_exists("varname")) |
| v1 = Variable(self.root, name="name") |
| v2 = Variable(self.root, name="name") |
| del v1 |
| self.assertFalse(self.info_exists("name")) |
| # shouldn't raise exception |
| del v2 |
| self.assertFalse(self.info_exists("name")) |
| |
| def test___eq__(self): |
| # values doesn't matter, only class and name are checked |
| v1 = Variable(self.root, name="abc") |
| v2 = Variable(self.root, name="abc") |
| self.assertEqual(v1, v2) |
| |
| v3 = Variable(self.root, name="abc") |
| v4 = StringVar(self.root, name="abc") |
| self.assertNotEqual(v3, v4) |
| |
| def test_invalid_name(self): |
| with self.assertRaises(TypeError): |
| Variable(self.root, name=123) |
| |
| def test_null_in_name(self): |
| with self.assertRaises(ValueError): |
| Variable(self.root, name='var\x00name') |
| with self.assertRaises(ValueError): |
| self.root.globalsetvar('var\x00name', "value") |
| with self.assertRaises(ValueError): |
| self.root.setvar('var\x00name', "value") |
| |
| |
| class TestStringVar(TestBase): |
| |
| def test_default(self): |
| v = StringVar(self.root) |
| self.assertEqual("", v.get()) |
| |
| def test_get(self): |
| v = StringVar(self.root, "abc", "name") |
| self.assertEqual("abc", v.get()) |
| self.root.globalsetvar("name", "value") |
| self.assertEqual("value", v.get()) |
| |
| def test_get_null(self): |
| v = StringVar(self.root, "abc\x00def", "name") |
| self.assertEqual("abc\x00def", v.get()) |
| self.root.globalsetvar("name", "val\x00ue") |
| self.assertEqual("val\x00ue", v.get()) |
| |
| |
| class TestIntVar(TestBase): |
| |
| def test_default(self): |
| v = IntVar(self.root) |
| self.assertEqual(0, v.get()) |
| |
| def test_get(self): |
| v = IntVar(self.root, 123, "name") |
| self.assertEqual(123, v.get()) |
| self.root.globalsetvar("name", "345") |
| self.assertEqual(345, v.get()) |
| |
| def test_invalid_value(self): |
| v = IntVar(self.root, name="name") |
| self.root.globalsetvar("name", "value") |
| with self.assertRaises(ValueError): |
| v.get() |
| self.root.globalsetvar("name", "345.0") |
| with self.assertRaises(ValueError): |
| v.get() |
| |
| |
| class TestDoubleVar(TestBase): |
| |
| def test_default(self): |
| v = DoubleVar(self.root) |
| self.assertEqual(0.0, v.get()) |
| |
| def test_get(self): |
| v = DoubleVar(self.root, 1.23, "name") |
| self.assertAlmostEqual(1.23, v.get()) |
| self.root.globalsetvar("name", "3.45") |
| self.assertAlmostEqual(3.45, v.get()) |
| |
| def test_get_from_int(self): |
| v = DoubleVar(self.root, 1.23, "name") |
| self.assertAlmostEqual(1.23, v.get()) |
| self.root.globalsetvar("name", "3.45") |
| self.assertAlmostEqual(3.45, v.get()) |
| self.root.globalsetvar("name", "456") |
| self.assertAlmostEqual(456, v.get()) |
| |
| def test_invalid_value(self): |
| v = DoubleVar(self.root, name="name") |
| self.root.globalsetvar("name", "value") |
| with self.assertRaises(ValueError): |
| v.get() |
| |
| |
| class TestBooleanVar(TestBase): |
| |
| def test_default(self): |
| v = BooleanVar(self.root) |
| self.assertIs(v.get(), False) |
| |
| def test_get(self): |
| v = BooleanVar(self.root, True, "name") |
| self.assertIs(v.get(), True) |
| self.root.globalsetvar("name", "0") |
| self.assertIs(v.get(), False) |
| self.root.globalsetvar("name", 42 if self.root.wantobjects() else 1) |
| self.assertIs(v.get(), True) |
| self.root.globalsetvar("name", 0) |
| self.assertIs(v.get(), False) |
| self.root.globalsetvar("name", 42L if self.root.wantobjects() else 1L) |
| self.assertIs(v.get(), True) |
| self.root.globalsetvar("name", 0L) |
| self.assertIs(v.get(), False) |
| self.root.globalsetvar("name", "on") |
| self.assertIs(v.get(), True) |
| self.root.globalsetvar("name", u"0") |
| self.assertIs(v.get(), False) |
| self.root.globalsetvar("name", u"on") |
| self.assertIs(v.get(), True) |
| |
| def test_set(self): |
| true = 1 if self.root.wantobjects() else "1" |
| false = 0 if self.root.wantobjects() else "0" |
| v = BooleanVar(self.root, name="name") |
| v.set(True) |
| self.assertEqual(self.root.globalgetvar("name"), true) |
| v.set("0") |
| self.assertEqual(self.root.globalgetvar("name"), false) |
| v.set(42) |
| self.assertEqual(self.root.globalgetvar("name"), true) |
| v.set(0) |
| self.assertEqual(self.root.globalgetvar("name"), false) |
| v.set(42L) |
| self.assertEqual(self.root.globalgetvar("name"), true) |
| v.set(0L) |
| self.assertEqual(self.root.globalgetvar("name"), false) |
| v.set("on") |
| self.assertEqual(self.root.globalgetvar("name"), true) |
| v.set(u"0") |
| self.assertEqual(self.root.globalgetvar("name"), false) |
| v.set(u"on") |
| self.assertEqual(self.root.globalgetvar("name"), true) |
| |
| def test_invalid_value_domain(self): |
| false = 0 if self.root.wantobjects() else "0" |
| v = BooleanVar(self.root, name="name") |
| with self.assertRaises(TclError): |
| v.set("value") |
| self.assertEqual(self.root.globalgetvar("name"), false) |
| self.root.globalsetvar("name", "value") |
| with self.assertRaises(TclError): |
| v.get() |
| self.root.globalsetvar("name", "1.0") |
| with self.assertRaises(TclError): |
| v.get() |
| |
| |
| tests_gui = (TestVariable, TestStringVar, TestIntVar, |
| TestDoubleVar, TestBooleanVar) |
| |
| |
| if __name__ == "__main__": |
| from test.support import run_unittest |
| run_unittest(*tests_gui) |
