Added test for setuptools startup

mokapot/__init__.py

@@ -1,6 +1,4 @@
-"""
-Initialize the mokapot package.
-"""
+"""Initialize the mokapot package."""
 try:
     from importlib.metadata import version, PackageNotFoundError
 

tests/unit_tests/test_version.py

@@ -0,0 +1,18 @@
+"""Test that getting the version works"""
+
+
+def test_importlib():
+    """This is the fast way for Python 3.8+"""
+    import mokapot
+
+    assert mokapot.__version__ != "0.0.0"
+
+
+def test_setuptools():
+    """We use this for Python < 3.8"""
+    import sys
+
+    sys.modules["importlib.metadata"] = None
+    import mokapot
+
+    assert mokapot.__version__ != "0.0.0"