Use assertRaises() to check if an exception is raised

In some test cases, try/except is used to check if an exception
has been raised. We should use assertRaises() instead.

Change-Id: I15c8e757dcab77fd6f895feb018184e1eb7e617b

1 files changed, 4 insertions, 5 deletions

diff --git a/openstackclient/tests/compute/v2/test_server.py b/openstackclient/tests/compute/v2/test_server.py
index a80eaf51..95188522 100644
--- a/openstackclient/tests/compute/v2/test_server.py
+++ b/openstackclient/tests/compute/v2/test_server.py
@@ -143,11 +143,10 @@ class TestServerCreate(TestServer):
         verifylist = [
             ('server_name', self.new_server.name),
         ]
-        try:
-            # Missing required args should bail here
-            self.check_parser(self.cmd, arglist, verifylist)
-        except utils.ParserException:
-            pass
+
+        # Missing required args should bail here
+        self.assertRaises(utils.ParserException, self.check_parser,
+                          self.cmd, arglist, verifylist)
 
     def test_server_create_minimal(self):
         arglist = [