add e2e test

Signed-off-by: cpanato <[email protected]>

.github/workflows/test-action.yml

@@ -9,7 +9,7 @@ jobs:
 
     name: Install chart-testing and test presence in path
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
     - name: Install chart-testing
       uses: ./
     - name: Check install!
@@ -38,7 +38,7 @@ jobs:
 
     name: Install Custom chart-testing and test presence in path
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
     - name: Install chart-testing
       uses: ./
       with:
@@ -65,3 +65,49 @@ jobs:
         else
           exit 0
         fi
+
+  test_ct_action_with_helm:
+    runs-on: ubuntu-latest
+
+    name: run action to test a helm chart
+    steps:
+    - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
+      with:
+        fetch-depth: 0
+
+    - name: Set up Helm
+      uses: azure/setup-helm@v3
+      with:
+        version: v3.14.4
+
+    - uses: actions/setup-python@v4
+      with:
+        python-version: '3.x'
+        check-latest: true
+
+    - name: Install chart-testing
+      uses: ./
+
+    - run: |
+        sed -i "s/version: .*/version: 2.0.0/" testdata/simple-deployment/Chart.yaml
+        cat testdata/simple-deployment/Chart.yaml
+
+    - name: Run chart-testing (list-changed)
+      id: list-changed
+      run: |
+        changed=$(ct list-changed --chart-dirs=testdata --target-branch ${{ github.event.repository.default_branch }})
+        if [[ -n "$changed" ]]; then
+          echo "changed=true" >> "$GITHUB_OUTPUT"
+        fi
+
+    - name: Run chart-testing (lint)
+      if: steps.list-changed.outputs.changed == 'true'
+      run: ct lint --chart-dirs=testdata --target-branch ${{ github.event.repository.default_branch }}
+
+    - name: Create kind cluster
+      if: steps.list-changed.outputs.changed == 'true'
+      uses: helm/[email protected]
+
+    - name: Run chart-testing (install)
+      if: steps.list-changed.outputs.changed == 'true'
+      run: ct install --chart-dirs=testdata --target-branch ${{ github.event.repository.default_branch }}

testdata/simple-deployment/Chart.yaml

@@ -0,0 +1,8 @@
+apiVersion: v1
+appVersion: "1.0"
+description: A Helm chart for Kubernetes
+name: nginx
+version: 0.1.0
+maintainers:
+  - name: cpanato
+  - name: davidkarlsen

testdata/simple-deployment/README.md

@@ -0,0 +1,4 @@
+Simple chart with a Deployment.
+
+The integration test will install first simple-deployment and then try to upgrade
+to simple-deployment-different-selector failing as expected

testdata/simple-deployment/templates/_helpers.tpl

@@ -0,0 +1,32 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "nginx.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "nginx.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "nginx.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}

testdata/simple-deployment/templates/deployment.yaml

@@ -0,0 +1,29 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "nginx.fullname" . }}
+  labels:
+    app.kubernetes.io/name: {{ include "nginx.name" . }}
+    helm.sh/chart: {{ include "nginx.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ include "nginx.name" . }}
+      app.kubernetes.io/instance: {{ .Release.Name }}
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: {{ include "nginx.name" . }}
+        app.kubernetes.io/instance: {{ .Release.Name }}
+    spec:
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - name: http
+              containerPort: 80
+              protocol: TCP

testdata/simple-deployment/values.yaml

@@ -0,0 +1,11 @@
+# Default values for nginx.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+image:
+  repository: nginx
+  tag: stable
+  pullPolicy: IfNotPresent
+
+nameOverride: ""
+fullnameOverride: ""