[Python-checkins] cpython (2.7): Backported tests for Tkinter variables.
serhiy.storchaka
python-checkins at python.org
Thu Dec 26 19:09:06 CET 2013
http://hg.python.org/cpython/rev/9f2ace2bbb13
changeset: 88199:9f2ace2bbb13
branch: 2.7
parent: 88196:b13c15a9ae54
user: Serhiy Storchaka <storchaka at gmail.com>
date: Thu Dec 26 20:08:34 2013 +0200
summary:
Backported tests for Tkinter variables.
files:
Lib/lib-tk/test/test_tkinter/test_variables.py | 152 ++++++++++
Misc/NEWS | 2 +
2 files changed, 154 insertions(+), 0 deletions(-)
diff --git a/Lib/lib-tk/test/test_tkinter/test_variables.py b/Lib/lib-tk/test/test_tkinter/test_variables.py
new file mode 100644
--- /dev/null
+++ b/Lib/lib-tk/test/test_tkinter/test_variables.py
@@ -0,0 +1,152 @@
+import unittest
+
+from Tkinter import Variable, StringVar, IntVar, DoubleVar, BooleanVar, Tk, TclError
+
+
+class TestBase(unittest.TestCase):
+
+ def setUp(self):
+ self.root = Tk()
+
+ def tearDown(self):
+ self.root.destroy()
+
+
+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)
+
+
+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())
+
+
+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.assertEqual(False, v.get())
+
+ def test_get(self):
+ v = BooleanVar(self.root, True, "name")
+ self.assertAlmostEqual(True, v.get())
+ self.root.globalsetvar("name", "0")
+ self.assertAlmostEqual(False, v.get())
+
+ def test_invalid_value_domain(self):
+ v = BooleanVar(self.root, name="name")
+ 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)
diff --git a/Misc/NEWS b/Misc/NEWS
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -134,6 +134,8 @@
Tests
-----
+- Backported tests for Tkinter variables.
+
- Issue #19320: test_tcl no longer fails when wantobjects is false.
- Issue #19683: Removed empty tests from test_minidom. Initial patch by
--
Repository URL: http://hg.python.org/cpython
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