Fix collation for postgres for unit tests (matrix-org#7359)

When running the UTs against a postgres deatbase, we need to set the collation correctly.
phil-flex · Jun 16, 2020 · 66fc4ae · 66fc4ae
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diff --git a/changelog.d/7359.misc b/changelog.d/7359.misc
@@ -0,0 +1 @@
+Fix collation for postgres for unit tests.
diff --git a/tests/utils.py b/tests/utils.py
@@ -74,7 +74,10 @@ def setupdb():
         db_conn.autocommit = True
         cur = db_conn.cursor()
         cur.execute("DROP DATABASE IF EXISTS %s;" % (POSTGRES_BASE_DB,))
-        cur.execute("CREATE DATABASE %s;" % (POSTGRES_BASE_DB,))
+        cur.execute(
+            "CREATE DATABASE %s ENCODING 'UTF8' LC_COLLATE='C' LC_CTYPE='C' "
+            "template=template0;" % (POSTGRES_BASE_DB,)
+        )
         cur.close()
         db_conn.close()