tests: ensure minify() result can be compiled for all of core.

mitogen/kubectl.py

@@ -1,4 +1,3 @@
-# coding: utf-8
 # Copyright 2018, Yannig Perré
 #
 # Redistribution and use in source and binary forms, with or without

mitogen/parent.py

@@ -618,6 +618,7 @@ class EofError(mitogen.core.StreamError):
     the child process.
     """
     # inherits from StreamError to maintain compatibility.
+    pass
 
 
 class Argv(object):

mitogen/service.py

@@ -395,11 +395,13 @@ class Service(object):
         Called when a message arrives on any of :attr:`select`'s registered
         receivers.
         """
+        pass
 
     def on_shutdown(self):
         """
         Called by Pool.shutdown() once the last worker thread has exitted.
         """
+        pass
 
 
 class Pool(object):

tests/minify_test.py

@@ -1,3 +1,5 @@
+import glob
+
 import unittest2
 
 import mitogen.minify
@@ -12,7 +14,7 @@ def read_sample(fname):
     return sample
 
 
-class MinimizeSource(unittest2.TestCase):
+class MinimizeSourceTest(unittest2.TestCase):
     func = staticmethod(mitogen.minify.minimize_source)
 
     def test_class(self):
@@ -51,5 +53,23 @@ class MinimizeSource(unittest2.TestCase):
         self.assertEqual(expected, self.func(original))
 
 
+class MitogenCoreTest(unittest2.TestCase):
+    # Verify minimize_source() succeeds for all built-in modules.
+    func = staticmethod(mitogen.minify.minimize_source)
+
+    def read_source(self, name):
+        fp = open(name)
+        try:
+            return fp.read()
+        finally:
+            fp.close()
+
+    def test_minify_all(self):
+        for name in glob.glob('mitogen/*.py'):
+            original = self.read_source(name)
+            minified = self.func(original)
+            compile(minified, name, 'exec')
+
+
 if __name__ == '__main__':
     unittest2.main()