fix redis e2e test

Author: hjwp

tests/e2e/test_external_events.py

@@ -14,9 +14,11 @@ def test_change_batch_quantity_leading_to_reallocation():
     orderid, sku = random_orderid(), random_sku()
     earlier_batch, later_batch = random_batchref('old'), random_batchref('newer')
     api_client.post_to_add_batch(earlier_batch, sku, qty=10, eta='2011-01-02')
-    api_client.post_to_add_batch(later_batch, sku, qty=10, eta='2011-01-02')
-    response = api_client.post_to_allocate(orderid, sku, 10)
-    assert response.json()['batchref'] == earlier_batch
+    api_client.post_to_add_batch(later_batch, sku, qty=10, eta='2011-01-03')
+    r = api_client.post_to_allocate(orderid, sku, 10)
+    assert r.ok
+    response = api_client.get_allocation(orderid)
+    assert response.json()[0]['batchref'] == earlier_batch
 
     subscription = redis_client.subscribe_to('line_allocated')