@Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if (o == null || getClass() != o.getClass()) return false;
            DeclaredTest that = (DeclaredTest) o;
            return region.equals(that.region);
        }
Returns the region this test is for.
config-model-api/src/main/java/com/yahoo/config/application/api/DeploymentSpec.java