test/unit: allow running test directly
test/unit: allow running test directly

Change-Id: Ib819ce7051f2152f8cca89ac28196209a56dd0c1

swiftstack/swift3-stackforge,stackforge/swift3,KoreaCloudObjectStorage/swift3,tumf/swift3,KoreaCloudObjectStorage/swift3,swiftstack/swift3-stackforge,stackforge/swift3,tumf/swift3