[3.10] bpo-25130: Add calls of gc.collect() in tests to support PyPy (GH-28005) (GH-28027)

(cherry picked from commit 2a8127cafe1d196f858a3ecabf5f1df3eebf9a12)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/Lib/tkinter/test/test_tkinter/test_variables.py b/Lib/tkinter/test/test_tkinter/test_variables.py
index 6aebe8d..0be5282 100644
--- a/Lib/tkinter/test/test_tkinter/test_variables.py
+++ b/Lib/tkinter/test/test_tkinter/test_variables.py
@@ -1,4 +1,6 @@
 import unittest
+from test import support
+
 import gc
 import tkinter
 from tkinter import (Variable, StringVar, IntVar, DoubleVar, BooleanVar, Tcl,
@@ -46,6 +48,7 @@ class TestVariable(TestBase):
         v = Variable(self.root, "sample string", "varname")
         self.assertTrue(self.info_exists("varname"))
         del v
+        support.gc_collect()  # For PyPy or other GCs.
         self.assertFalse(self.info_exists("varname"))
 
     def test_dont_unset_not_existing(self):
@@ -53,9 +56,11 @@ class TestVariable(TestBase):
         v1 = Variable(self.root, name="name")
         v2 = Variable(self.root, name="name")
         del v1
+        support.gc_collect()  # For PyPy or other GCs.
         self.assertFalse(self.info_exists("name"))
         # shouldn't raise exception
         del v2
+        support.gc_collect()  # For PyPy or other GCs.
         self.assertFalse(self.info_exists("name"))
 
     def test_equality(self):