tests/charts/test_dags_persistent_volume_claim.py

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import unittest

import jmespath

from tests.charts.helm_template_generator import render_chart


class DagsPersistentVolumeClaimTest(unittest.TestCase):
    def test_should_not_generate_a_document_if_persistence_is_disabled(self):
        docs = render_chart(
            values={"dags": {"persistence": {"enabled": False}}},
            show_only=["templates/dags-persistent-volume-claim.yaml"],
        )

        assert 0 == len(docs)

    def test_should_not_generate_a_document_when_using_an_existing_claim(self):
        docs = render_chart(
            values={"dags": {"persistence": {"enabled": True, "existingClaim": "test-claim"}}},
            show_only=["templates/dags-persistent-volume-claim.yaml"],
        )

        assert 0 == len(docs)

    def test_should_generate_a_document_if_persistence_is_enabled_and_not_using_an_existing_claim(self):
        docs = render_chart(
            values={"dags": {"persistence": {"enabled": True, "existingClaim": None}}},
            show_only=["templates/dags-persistent-volume-claim.yaml"],
        )

        assert 1 == len(docs)

    def test_should_set_pvc_details_correctly(self):
        docs = render_chart(
            values={
                "dags": {
                    "persistence": {
                        "enabled": True,
                        "size": "1G",
                        "existingClaim": None,
                        "storageClassName": "MyStorageClass",
                        "accessMode": "ReadWriteMany",
                    }
                }
            },
            show_only=["templates/dags-persistent-volume-claim.yaml"],
        )

        assert {
            "accessModes": ["ReadWriteMany"],
            "resources": {"requests": {"storage": "1G"}},
            "storageClassName": "MyStorageClass",
        } == jmespath.search("spec", docs[0])

    def test_single_annotation(self):
        docs = render_chart(
            values={
                "dags": {
                    "persistence": {
                        "enabled": True,
                        "size": "1G",
                        "existingClaim": None,
                        "storageClassName": "MyStorageClass",
                        "accessMode": "ReadWriteMany",
                        "annotations": {"key": "value"},
                    }
                }
            },
            show_only=["templates/dags-persistent-volume-claim.yaml"],
        )

        annotations = jmespath.search("metadata.annotations", docs[0])
        assert "value" == annotations.get("key")

    def test_multiple_annotations(self):
        docs = render_chart(
            values={
                "dags": {
                    "persistence": {
                        "enabled": True,
                        "size": "1G",
                        "existingClaim": None,
                        "storageClassName": "MyStorageClass",
                        "accessMode": "ReadWriteMany",
                        "annotations": {"key": "value", "key-two": "value-two"},
                    }
                }
            },
            show_only=["templates/dags-persistent-volume-claim.yaml"],
        )

        annotations = jmespath.search("metadata.annotations", docs[0])
        assert "value" == annotations.get("key")
        assert "value-two" == annotations.get("key-two")