static func testRemove (blockRepo : XyoOriginBlockRepository) throws {
        XCTAssertFalse(try blockRepo.containsOriginBlock(originBlockHash: XyoOriginBlockRepositoryTests.expectedHashOne))
        try blockRepo.addOriginBlock(originBlock: XyoOriginBlockRepositoryTests.boundWitnessOne)
        XCTAssertTrue(try blockRepo.containsOriginBlock(originBlockHash: XyoOriginBlockRepositoryTests.expectedHashOne))
    }