diff --git a/boltons/jsonutils.py b/boltons/jsonutils.py
index f1a7078..dbeca4d 100644
--- a/boltons/jsonutils.py
+++ b/boltons/jsonutils.py
@@ -178,18 +178,4 @@ class JSONLIterator(object):
                 continue
             return obj
 
-
-if __name__ == '__main__':
-    def _test_reverse_iter_lines(filename, blocksize=DEFAULT_BLOCKSIZE):
-        # from cStringIO import StringIO
-        fo = open('_tmp_nl.txt')
-        reference = fo.read()
-        # fo = StringIO(reference)
-        fo.seek(0, os.SEEK_END)
-        rev_lines = list(reverse_iter_lines(fo, blocksize))
-        assert '\n'.join(rev_lines[::-1]) == reference
-
-    for blocksize in (1, 4, 11, 4096):
-        _test_reverse_iter_lines('_tmp_nl.txt', blocksize)
-
-    print(list(JSONLIterator(open('_tmp_jsonl.jsonl'), reverse=True)))
+    __next__ = next
diff --git a/tests/jsonl_test_data.txt b/tests/jsonl_test_data.txt
new file mode 100644
index 0000000..5b8fd12
--- /dev/null
+++ b/tests/jsonl_test_data.txt
@@ -0,0 +1,5 @@
+{}
+{"1": 1}
+{"2": 2}
+{"3": 3}
+{"4": 4}
diff --git a/tests/newlines_test_data.txt b/tests/newlines_test_data.txt
new file mode 100644
index 0000000..268abe8
--- /dev/null
+++ b/tests/newlines_test_data.txt
@@ -0,0 +1,10 @@
+a
+b
+c
+d
+e
+f
+g
+hijklmnop
+qrstuv
+wxyz
diff --git a/tests/test_jsonutils.py b/tests/test_jsonutils.py
new file mode 100644
index 0000000..21f43ac
--- /dev/null
+++ b/tests/test_jsonutils.py
@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+
+import os
+
+from boltons.jsonutils import (JSONLIterator,
+                               DEFAULT_BLOCKSIZE,
+                               reverse_iter_lines)
+
+CUR_PATH = os.path.dirname(os.path.abspath(__file__))
+NEWLINES_DATA_PATH = CUR_PATH + '/newlines_test_data.txt'
+JSONL_DATA_PATH = CUR_PATH + '/jsonl_test_data.txt'
+
+
+def _test_reverse_iter_lines(filename, blocksize=DEFAULT_BLOCKSIZE):
+    fo = open(filename)
+    reference = fo.read()
+    fo.seek(0, os.SEEK_END)
+    rev_lines = list(reverse_iter_lines(fo, blocksize))
+    assert '\n'.join(rev_lines[::-1]) == reference
+
+
+def test_reverse_iter_lines():
+    for blocksize in (1, 4, 11, 4096):
+        _test_reverse_iter_lines(NEWLINES_DATA_PATH, blocksize)
+
+
+def test_jsonl_iterator():
+    ref = [{u'4': 4}, {u'3': 3}, {u'2': 2}, {u'1': 1}, {}]
+    jsonl_iter = JSONLIterator(open(JSONL_DATA_PATH), reverse=True)
+    jsonl_list = list(jsonl_iter)
+    assert jsonl_list == ref