fakessh: Add integration test for inter-child rsync.

tests/fakessh_test.py

@@ -24,3 +24,39 @@ class RsyncTest(testlib.DockerMixin, unittest.TestCase):
         assert context.call(os.path.exists, '/tmp/data')
         assert context.call(os.path.exists, '/tmp/data/simple_pkg/a.py')
 
+    def test_rsync_between_direct_children(self):
+        # master -> SSH -> has-sudo-pubkey -> rsync(.ssh) -> master ->
+        # has-sudo -> rsync
+
+        pubkey_acct = self.docker_ssh(
+            username='has-sudo-pubkey',
+            identity_file=testlib.data_path('docker/has-sudo-pubkey.key'),
+        )
+
+        nopw_acct = self.docker_ssh(
+            username='has-sudo-nopw',
+            password='y',
+        )
+
+        webapp_acct = self.router.sudo(
+            via=nopw_acct,
+            username='webapp',
+        )
+
+        dest_path = webapp_acct.call(os.path.expanduser, '~/.ssh')
+        if webapp_acct.call(os.path.exists, dest_path):
+            webapp_acct.call(shutil.rmtree, dest_path)
+
+        return_code = pubkey_acct.call(mitogen.fakessh.run, webapp_acct, args=[
+            'rsync', '--progress', '-vvva', '.ssh/', 'target:' + dest_path
+        ])
+
+        assert return_code == 0
+        assert pubkey_acct.call(os.path.getsize, '.ssh/authorized_keys') == \
+               webapp_acct.call(os.path.getsize, dest_path + '/authorized_keys')
+
+
+if __name__ == '__main__':
+    import mitogen.utils
+    mitogen.utils.log_to_file(level='DEBUG', io=False)
+    unittest.main()