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Edit File : test_variables.py \| Size : 8.19 KB
import unittest import gc 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") def test_trace(self): v = Variable(self.root) vname = str(v) trace = [] def read_tracer(args): trace.append(('read',) + args) def write_tracer(args): trace.append(('write',) + args) cb1 = v.trace_variable('r', read_tracer) cb2 = v.trace_variable('wu', write_tracer) self.assertEqual(sorted(v.trace_vinfo()), [('r', cb1), ('wu', cb2)]) self.assertEqual(trace, []) v.set('spam') self.assertEqual(trace, [('write', vname, '', 'w')]) trace = [] v.get() self.assertEqual(trace, [('read', vname, '', 'r')]) trace = [] info = sorted(v.trace_vinfo()) v.trace_vdelete('w', cb1) # Wrong mode self.assertEqual(sorted(v.trace_vinfo()), info) with self.assertRaises(TclError): v.trace_vdelete('r', 'spam') # Wrong command name self.assertEqual(sorted(v.trace_vinfo()), info) v.trace_vdelete('r', (cb1, 43)) # Wrong arguments self.assertEqual(sorted(v.trace_vinfo()), info) v.get() self.assertEqual(trace, [('read', vname, '', 'r')]) trace = [] v.trace_vdelete('r', cb1) self.assertEqual(v.trace_vinfo(), [('wu', cb2)]) v.get() self.assertEqual(trace, []) trace = [] del write_tracer gc.collect() v.set('eggs') self.assertEqual(trace, [('write', vname, '', 'w')]) #trace = [] #del v #gc.collect() #self.assertEqual(trace, [('write', vname, '', 'u')]) 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) Back

Edit File : test_variables.py | Size : 8.19 KB

import unittest
import gc
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")

def test_trace(self):
        v = Variable(self.root)
        vname = str(v)
        trace = []
        def read_tracer(*args):
            trace.append(('read',) + args)
        def write_tracer(*args):
            trace.append(('write',) + args)
        cb1 = v.trace_variable('r', read_tracer)
        cb2 = v.trace_variable('wu', write_tracer)
        self.assertEqual(sorted(v.trace_vinfo()), [('r', cb1), ('wu', cb2)])
        self.assertEqual(trace, [])

v.set('spam')
        self.assertEqual(trace, [('write', vname, '', 'w')])

trace = []
        v.get()
        self.assertEqual(trace, [('read', vname, '', 'r')])

trace = []
        info = sorted(v.trace_vinfo())
        v.trace_vdelete('w', cb1)  # Wrong mode
        self.assertEqual(sorted(v.trace_vinfo()), info)
        with self.assertRaises(TclError):
            v.trace_vdelete('r', 'spam')  # Wrong command name
        self.assertEqual(sorted(v.trace_vinfo()), info)
        v.trace_vdelete('r', (cb1, 43)) # Wrong arguments
        self.assertEqual(sorted(v.trace_vinfo()), info)
        v.get()
        self.assertEqual(trace, [('read', vname, '', 'r')])

trace = []
        v.trace_vdelete('r', cb1)
        self.assertEqual(v.trace_vinfo(), [('wu', cb2)])
        v.get()
        self.assertEqual(trace, [])

trace = []
        del write_tracer
        gc.collect()
        v.set('eggs')
        self.assertEqual(trace, [('write', vname, '', 'w')])

#trace = []
        #del v
        #gc.collect()
        #self.assertEqual(trace, [('write', vname, '', 'u')])

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)

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