pkg/cvo/cvo_test: Distinguish names for the "single clusteroperator" cases

The three cases landed with the same name in 0452814 (cvo: long
running upgradeable sync worker, 2019-09-05, #243).  The new names
make the differences, which all involve the presence and state of
default-operator-2, more obvious.

Author: wking

pkg/cvo/cvo_test.go

@@ -2741,7 +2741,7 @@ func TestOperator_upgradeableSync(t *testing.T) {
 			},
 		},
 		{
-			name: "report error condition when single clusteroperator is not upgradeable",
+			name: "report error condition when the single clusteroperator is not upgradeable",
 			optr: Operator{
 				defaultUpstreamServer: "http://localhost:8080/graph",
 				releaseVersion:        "v4.0.0",
@@ -2788,7 +2788,7 @@ func TestOperator_upgradeableSync(t *testing.T) {
 			},
 		},
 		{
-			name: "report error condition when single clusteroperator is not upgradeable",
+			name: "report error condition when single clusteroperator is not upgradeable and another has no conditions",
 			optr: Operator{
 				defaultUpstreamServer: "http://localhost:8080/graph",
 				releaseVersion:        "v4.0.0",
@@ -2843,7 +2843,7 @@ func TestOperator_upgradeableSync(t *testing.T) {
 			},
 		},
 		{
-			name: "report error condition when single clusteroperator is not upgradeable",
+			name: "report error condition when single clusteroperator is not upgradeable and another is upgradeable",
 			optr: Operator{
 				defaultUpstreamServer: "http://localhost:8080/graph",
 				releaseVersion:        "v4.0.0",