From 1998d59cfcbff4cf6240a16889c2c98cd7e5a416 Mon Sep 17 00:00:00 2001
From: Diego Argueta <diego@goodrx.com>
Date: Thu, 20 Dec 2018 11:40:13 -0800
Subject: [PATCH] Add more tests to please Coveralls

---
 tests/test_s3/test_s3.py | 36 +++++++++++++++++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

diff --git a/tests/test_s3/test_s3.py b/tests/test_s3/test_s3.py
index 3af214c3..10fd68f4 100644
--- a/tests/test_s3/test_s3.py
+++ b/tests/test_s3/test_s3.py
@@ -70,12 +70,46 @@ class MyModel(object):
 def test_keys_are_pickleable():
     """Keys must be pickleable due to boto3 implementation details."""
     key = s3model.FakeKey('name', b'data!')
+    assert key.value == b'data!'
+
     pickled = pickle.dumps(key)
     loaded = pickle.loads(pickled)
-
     assert loaded.value == key.value
 
 
+@mock_s3
+def test_append_to_value__basic():
+    key = s3model.FakeKey('name', b'data!')
+    assert key.value == b'data!'
+    assert key.size == 5
+
+    key.append_to_value(b' And even more data')
+    assert key.value == b'data! And even more data'
+    assert key.size == 24
+
+
+@mock_s3
+def test_append_to_value__nothing_added():
+    key = s3model.FakeKey('name', b'data!')
+    assert key.value == b'data!'
+    assert key.size == 5
+
+    key.append_to_value(b'')
+    assert key.value == b'data!'
+    assert key.size == 5
+
+
+@mock_s3
+def test_append_to_value__empty_key():
+    key = s3model.FakeKey('name', b'')
+    assert key.value == b''
+    assert key.size == 0
+
+    key.append_to_value(b'stuff')
+    assert key.value == b'stuff'
+    assert key.size == 5
+
+
 @mock_s3
 def test_my_model_save():
     # Create Bucket so that test can run