tests: limit wallet instance scope

Author: accumulator

tests/qml/test_qewallet.py

@@ -78,12 +78,12 @@ def create_standard_wallet_from_seed(self, seed_words, *, with_password=None):
 
     @qt_test
     def test_single_qobject_per_wallet_instance(self):
-        self.wallet = self.create_standard_wallet_from_seed('bitter grass shiver impose acquire brush forget axis eager alone wine silver')
+        wallet = self.create_standard_wallet_from_seed('bitter grass shiver impose acquire brush forget axis eager alone wine silver')
 
-        qw = QEWallet.getInstanceFor(self.wallet)
+        qw = QEWallet.getInstanceFor(wallet)
         self.assertIsNotNone(qw)
 
-        qw2 = QEWallet.getInstanceFor(self.wallet)
+        qw2 = QEWallet.getInstanceFor(wallet)
         self.assertTrue(qw == qw2)
 
     @qt_test