add kind for e2e testing

.github/workflows/ci.yml

@@ -6,10 +6,15 @@ jobs:
   ci_job:
     name: test
     runs-on: ubuntu-22.04
-    container:
-      image: golang:1.22
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+      - name: Create kind cluster
+        uses: helm/kind-action@v1
+        with:
+          cluster_name: kvs-test
+          install_only: true
+      - name: Prepare env
+        run: make bootstrap
       - name: Test
         run: make test

Makefile

@@ -3,11 +3,15 @@ BINARY := kubectl-view-secret
 
 build: kubectl-view-secret
 
+bootstrap:
+	./hack/kind-bootstrap.sh
+
 test: $(SOURCES)
 	go test -v -short -race -timeout 30s ./...
 
 clean:
 	@rm -rf $(BINARY)
+	@kind delete cluster --name kvs-test
 
 $(BINARY): $(SOURCES)
 	CGO_ENABLED=0 go build -o $(BINARY) -ldflags="-s -w" ./cmd/$(BINARY).go

hack/kind-bootstrap.sh

@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+CLUSTER_NAME="kvs-test"
+
+# Check if kind & kubectl are installed
+which kind &>/dev/null || { echo "failed to find 'kind' binary, please install it" && exit 1; }
+which kubectl &>/dev/null || { echo "failed to find 'kubectl' binary, please install it" && exit 1; }
+
+# Ensure the cluster exists
+[[ $(kind get clusters) == *$CLUSTER_NAME* ]] || kind create cluster --name $CLUSTER_NAME
+
+# Set context in case there are mulitple
+kubectl config set-context kind-${CLUSTER_NAME}
+
+# Seed test secrets
+
+## secret 'test' in namespace 'default' (multiple keys)
+kubectl apply -f - <<EOF
+apiVersion: v1
+data:
+  key1: dmFsdWUxCg==
+  key2: dmFsdWUyCg==
+kind: Secret
+metadata:
+  name: test
+  namespace: default
+type: Opaque
+EOF
+
+## secret 'test2' in namespace 'default' (single key)
+kubectl apply -f - <<EOF
+apiVersion: v1
+data:
+  key1: dmFsdWUx
+kind: Secret
+metadata:
+  name: test2
+  namespace: default
+type: Opaque
+EOF

pkg/cmd/view-secret_test.go

@@ -60,6 +60,7 @@ func TestNewCmdViewSecret(t *testing.T) {
 		"custom ns":         {args: []string{"test", "--namespace", "bob"}},
 		"impersonate group": {args: []string{"test", "--as-group", "golovers"}},
 		"impersonate user":  {args: []string{"test", "--as", "gopher"}},
+		"invalid arg count": {args: []string{"a", "b", "c"}, wantErr: errors.New("accepts between 0 and 2 arg(s), received 3")},
 		"quiet":             {args: []string{"test", "--all", "--quiet"}},
 		"unknown flag":      {args: []string{"--version"}, wantErr: errors.New("unknown flag: --version")},
 	}