test_logs_persistent_volume_claim.py

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from __future__ import annotations

import jmespath

from tests.charts.helm_template_generator import render_chart


class TestLogsPersistentVolumeClaim:
    """Tests logs PVC."""

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

        assert 1 == len(docs)

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

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

    def test_logs_persistent_volume_claim_template_storage_class_name(self):
        docs = render_chart(
            values={
                "logs": {
                    "persistence": {
                        "existingClaim": None,
                        "enabled": True,
                        "storageClassName": "{{ .Release.Name }}-storage-class",
                    }
                }
            },
            show_only=["templates/logs-persistent-volume-claim.yaml"],
        )
        assert "release-name-storage-class" == jmespath.search("spec.storageClassName", docs[0])