ci: add helm unittest

.github/workflows/helm_unit_test.yml

@@ -0,0 +1,27 @@
+name: Helm unit test
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  unit-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Set up Helm 3.11.1
+        uses: azure/setup-helm@v1
+        with:
+          version: '3.11.1'
+
+      - name: Install Helm Unit Test Plugin
+        run: |
+          helm plugin install https://github.com/helm-unittest/helm-unittest --version v0.4.4
+
+      - name: Run unit tests
+        run:
+          helm unittest -f 'tests/*.yaml' deploy/charts/litellm-helm

deploy/charts/litellm-helm/tests/deployment_tests.yaml

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+suite: test deployment
+templates:
+  - deployment.yaml
+  - configmap-litellm.yaml
+tests:
+  - it: should work
+    template: deployment.yaml
+    set:
+      image.tag: test
+    asserts:
+      - isKind:
+          of: Deployment
+      - matchRegex:
+          path: metadata.name
+          pattern: -litellm$
+      - equal:
+          path: spec.template.spec.containers[0].image
+          value: ghcr.io/berriai/litellm-database:test
+  - it: should work with tolerations
+    template: deployment.yaml
+    set:
+      tolerations:
+        - key: node-role.kubernetes.io/master
+          operator: Exists
+          effect: NoSchedule
+    asserts:
+      - equal:
+          path: spec.template.spec.tolerations[0].key
+          value: node-role.kubernetes.io/master
+      - equal:
+          path: spec.template.spec.tolerations[0].operator
+          value: Exists
+  - it: should work with affinity
+    template: deployment.yaml
+    set:
+      affinity:
+        nodeAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            nodeSelectorTerms:
+            - matchExpressions:
+              - key: topology.kubernetes.io/zone
+                operator: In
+                values:
+                - antarctica-east1
+    asserts:
+      - equal:
+          path: spec.template.spec.affinity.nodeAffinity.requiredDuringSchedulingIgnoredDuringExecution.nodeSelectorTerms[0].matchExpressions[0].key
+          value: topology.kubernetes.io/zone
+      - equal:
+          path: spec.template.spec.affinity.nodeAffinity.requiredDuringSchedulingIgnoredDuringExecution.nodeSelectorTerms[0].matchExpressions[0].operator
+          value: In
+      - equal:
+          path: spec.template.spec.affinity.nodeAffinity.requiredDuringSchedulingIgnoredDuringExecution.nodeSelectorTerms[0].matchExpressions[0].values[0]
+          value: antarctica-east1