helm-unittest plugin fails to test sections which are applied from library chart

[raghav19]

I recently have developed a library chart for a certain set of functions which is added as a dependency in another chart. The dependency is updated using the helm dep update <my-chart> command.

The config-pvc.yaml using the library chart is as follows

{{- include "factory.headers" . }}
---
{{- include "factory.pvcConfigCommonSpec" . }}
  storageClassName: nfs
  accessModes:
    - {{ .Values.storage.nfs.accessModes }}
  resources:
    requests:
      storage: {{ .Values.storage.nfs.configSize }}

The library function written under a lib chart under templates/_pvc.tpl is as follows

{{/*
PVC for config
*/}}
{{- define "factory.pvcConfigCommonSpec" -}}
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: {{ include "factory.name" . }}-config
  namespace: {{ .Release.Namespace }}
spec:
{{- end }}

The unit test for the same is written under _test folder with the file configpvc_test.yaml as follows:

---
suite: test config-pvc
templates:
  - config-pvc.yaml
tests:
  - it: should use local values when deployed as local chart
    set:
      storage.nfs.accessModes: ReadyWriteMany
      storage.nfs.configSize: 10Mi
    asserts:
      - hasDocuments:
          count: 1
      - equal:
          path: spec.accessModes[0]
          value: ReadyWriteMany
      - equal:
          path: spec.resources.requests.storage
          value: 10Mi

  - it: should override name and namespace
    set:
      nameOverride: cms-hello
    release:
      namespace: test
    asserts:
      - hasDocuments:
          count: 1
      - isKind:
          of: PersistentVolumeClaim
      - isAPIVersion:
          of: v1
      - equal:
          path: metadata.namespace
          value: test
      - equal:
          path: metadata.name
          value: cms-hello-config

The result of running the test gives the following

Issue: The lib chart part is not gettting rendered by the unittest plugin and is reporting as null in the sections where its getting checked for values.

[rquinio]

It might be an indentation/newline issue on apiVersion: v1, since it's the first element of the document ? I usually do a helm template --debug to check the rendered YAML

[raghav19]

Hi @rquinio , The following is the templated config-pvc.yaml which is getting rendered successfully after doing dependency update.

I even tried helm install --dry-run... and there are no errors there as well.

[raghav19]

@quintush , any way to approach this which I might be doing wrong?