From fa4e12d4a5cef5af6cd7e2b26e42111dc78c5f0c Mon Sep 17 00:00:00 2001
From: Jean-Paul Calderone <exarkun@twistedmatrix.com>
Date: Tue, 25 Feb 2020 10:38:56 -0500
Subject: [PATCH] ILeaseMaintenanceObserver.observe requires a list not a set

---
 src/_zkapauthorizer/tests/test_model.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/_zkapauthorizer/tests/test_model.py b/src/_zkapauthorizer/tests/test_model.py
index be418c0..e4d9b39 100644
--- a/src/_zkapauthorizer/tests/test_model.py
+++ b/src/_zkapauthorizer/tests/test_model.py
@@ -297,9 +297,9 @@ class LeaseMaintenanceTests(TestCase):
             passes_required = 0
             for (num_passes, trim_size) in sizes:
                 passes_required += num_passes
-                x.observe({
-                    num_passes * BYTES_PER_PASS - trim_size
-                })
+                x.observe([
+                    num_passes * BYTES_PER_PASS - trim_size,
+                ])
             now += finish_delay
             x.finish()
             finished = now
-- 
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