@skipUnless(which(b"flocker-ca"), b"flocker-ca not installed (FLOC-2600)")
    def test_add_node(self):
        output = FilePath(self.mktemp())
        output.makedirs()
        certificates = Certificates.generate(output, b"some-service", 2,
                                             b"test-cluster")
        certificates.add_node(3)
        self.assertEqual(
            {
                output.child(b"cluster.crt"), output.child(b"cluster.key"),
                output.child(b"control-some-service.crt"),
                output.child(b"control-some-service.key"),
                output.child(b"user.crt"), output.child(b"user.key"),
                output.child(b"node-0.crt"), output.child(b"node-0.key"),
                output.child(b"node-1.crt"), output.child(b"node-1.key"),
                output.child(b"node-3.crt"), output.child(b"node-3.key"),
            },
            set(output.children()),
        )
Plot spatial maps of PSDs
dataset/ETHPy150Open ClusterHQ/flocker/flocker/provision/test/test_ca.py/CertificatesGenerateTests.test_add_node--crossover with--dataset/ETHPy150Open mne-tools/mne-python/mne/viz/topomap.py/plot_psds_topomap