test_migrations: Avoid returning a filter object for python3

Otherwise it confuses oslo.db.

Closes-Bug: #1522731
Change-Id: I1a246eea9adef10ec6c025e9b620f87ee9318dd7
(cherry picked from commit b989e9d181)
This commit is contained in:
YAMAMOTO Takashi 2015-12-04 17:50:09 +09:00 committed by Ihar Hrachyshka
parent 1e52b28cc9
commit 79d4a08767
1 changed files with 1 additions and 1 deletions

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@ -131,7 +131,7 @@ class _TestModelsMigrations(test_migrations.ModelsMigrationsSync):
object_, name, type_, reflected, compare_to)
def filter_metadata_diff(self, diff):
return filter(self.remove_unrelated_errors, diff)
return list(filter(self.remove_unrelated_errors, diff))
# Remove some difference that are not mistakes just specific of
# dialects, etc