postgres-operator/e2e/tests/test_example.py

53 lines
1.6 KiB
Python
Executable File

import unittest
from kubernetes import client, config
from pprint import pprint
class SampleTestCase(unittest.TestCase):
nodes = set(["kind-test-postgres-operator-worker", "kind-test-postgres-operator-worker2", "kind-test-postgres-operator-worker3"])
def setUp(self):
self.config = config.load_kube_config()
self.v1 = client.CoreV1Api()
def test_assign_labels_to_nodes(self):
"""
Ensure labeling nodes through the externally connected Python client works.
Sample test case to illustrate potential test structure
"""
body = {
"metadata": {
"labels": {
"lifecycle-status": "ready"
}
}
}
for node in self.nodes:
_ = self.v1.patch_node(node, body)
labelled_nodes = set([])
for node in self.nodes:
v1_node_var = self.v1.read_node(node)
if v1_node_var.metadata.labels['lifecycle-status'] == 'ready':
labelled_nodes.add(v1_node_var.metadata.name)
self.assertEqual(self.nodes, labelled_nodes,"nodes incorrectly labelled")
def tearDown(self):
"""
Each test must restore the original cluster state
to avoid introducing dependencies between tests
"""
body = {
"metadata": {
"labels": {
"lifecycle-status": None # deletes label
}
}
}
for node in self.nodes:
_ = self.v1.patch_node(node, body)
if __name__ == '__main__':
unittest.main()