protected GitSshCheckOutCommandTckTest() throws GeneralSecurityException {
        gitSshServer = new GitSshServer();
    }

    protected abstract String getScmProvider();

    /** {@inheritDoc} */
    public String getScmUrl() throws Exception {
        return "scm:" + getScmProvider() + ":ssh://localhost:" + gitSshServer.getPort() + "/repository";
    }

    protected void configureCredentials(ScmRepository repository, String passphrase) throws Exception {
        ScmProviderRepositoryWithHost providerRepository =
                ScmProviderRepositoryWithHost.class.cast(repository.getProviderRepository());
        // store as file
        Path privateKeyFile = tmpDirectory.newFile().toPath();
        gitSshServer.writePrivateKeyAsPkcs8(privateKeyFile, passphrase);
        providerRepository.setPrivateKey(privateKeyFile.toString());
        providerRepository.setPassphrase(passphrase); // may be null
    }

    /** {@inheritDoc} */
    public void initRepo() throws Exception {
        GitScmTestUtils.initRepo("src/test/resources/repository/", getRepositoryRoot(), getWorkingDirectory());
        gitSshServer.start(getRepositoryRoot().getParentFile().toPath());

        // as checkout also already happens in setup() make sure to configure credentials here as well
        configureCredentials(getScmRepository(), null);
    }

    @Override
    public void removeRepo() throws Exception {
        gitSshServer.stop();
        super.removeRepo();
    }

    @Override

public void configureCredentials(ScmRepository repository, String passphrase) throws Exception {
        ScmProviderRepositoryWithHost providerRepository =
                ScmProviderRepositoryWithHost.class.cast(repository.getProviderRepository());
        // store as file
        Path privateKeyFile = tmpDirectory.newFile().toPath();
        gitSshServer.writePrivateKeyAsPkcs8(privateKeyFile, passphrase);
        providerRepository.setPrivateKey(privateKeyFile.toString());
        providerRepository.setPassphrase(passphrase); // may be null
    }

    /** {@inheritDoc} */
    public void initRepo() throws Exception {
        GitScmTestUtils.initRepo("src/test/resources/repository/", getRepositoryRoot(), getWorkingDirectory());
        gitSshServer.start(getRepositoryRoot().getParentFile().toPath());

        // as checkout also already happens in setup() make sure to configure credentials here as well
        configureCredentials(getScmRepository(), null);
    }

    @Override
    public void removeRepo() throws Exception {
        gitSshServer.stop();
        super.removeRepo();
    }

    @Override
    protected CheckOutScmResult checkOut(File workingDirectory, ScmRepository repository) throws Exception {
        try {
            return super.checkOut(workingDirectory, repository);
        } finally {
            GitScmTestUtils.setDefaultGitConfig(workingDirectory);
        }
    }

    @Test
    public void testBranchCommandTestWithPush() throws Exception {