Meaningless, but add version test to increase cov

tests/version_test.py

@@ -0,0 +1,30 @@
+import collections
+import numbers
+import os
+
+from sqlalchemy import __version__
+from sqlalchemy_imageattach.version import VERSION, VERSION_INFO
+
+
+def test_version_info():
+    assert isinstance(VERSION_INFO, collections.Sequence)
+    assert len(VERSION_INFO) == 3
+    assert isinstance(VERSION_INFO[0], numbers.Integral)
+    assert isinstance(VERSION_INFO[1], numbers.Integral)
+    assert isinstance(VERSION_INFO[2], numbers.Integral)
+
+
+def test_sqlalchemy_version():
+    assert map(int, __version__.split('.')[:2]) == list(VERSION_INFO[:2])
+    assert __version__.split('.')[:2] == VERSION.split('.')[:2]
+
+
+def test_version():
+    assert isinstance(VERSION, str)
+    assert map(int, VERSION.split('.')) == list(VERSION_INFO)
+
+
+def test_print():
+    with os.popen('python -m sqlalchemy_imageattach.version') as pipe:
+        printed_version = pipe.read().strip()
+        assert printed_version == VERSION