From 1d3c3995edf7866b4f0ed8879a68f6b00aeaf5d8 Mon Sep 17 00:00:00 2001
From: Phani Teja Marupaka <pmarupaka@google.com>
Date: Sun, 12 Jan 2020 16:04:29 -0800
Subject: [PATCH] End to End tests framework

---
 Makefile                                | 12 ++++++++++
 examples/helloWorld/README.md           | 32 +++++++++++++++++++++++--
 hack/testExamplesE2EAgainstKustomize.sh | 13 ++++++++++
 3 files changed, 55 insertions(+), 2 deletions(-)
 create mode 100755 hack/testExamplesE2EAgainstKustomize.sh

diff --git a/Makefile b/Makefile
index c9e5f4b54..77b8fe954 100644
--- a/Makefile
+++ b/Makefile
@@ -17,6 +17,9 @@ verify-kustomize: \
 	test-examples-kustomize-against-HEAD \
 	test-examples-kustomize-against-latest
 
+.PHONY: verify-kustomize-e2e
+verify-kustomize-e2e: test-examples-e2e-kustomize-against-HEAD
+
 # Other builds in this repo might want a different linter version.
 # Without one Makefile to rule them all, the different makes
 # cannot assume that golanci-lint is at the version they want
@@ -48,6 +51,11 @@ $(MYGOBIN)/goimports:
 	cd api; \
 	go install golang.org/x/tools/cmd/goimports
 
+# Install resource from whatever is checked out.
+$(MYGOBIN)/resource:
+	cd cmd/resource; \
+	go install .
+
 # To pin pluginator, use this recipe instead:
 #   cd api;
 #   go install sigs.k8s.io/kustomize/pluginator/v2
@@ -193,6 +201,10 @@ test-unit-kustomize-all: \
 test-examples-kustomize-against-HEAD: $(MYGOBIN)/kustomize $(MYGOBIN)/mdrip
 	./hack/testExamplesAgainstKustomize.sh HEAD
 
+.PHONY:
+test-examples-e2e-kustomize-against-HEAD: $(MYGOBIN)/kustomize $(MYGOBIN)/mdrip $(MYGOBIN)/resource
+	./hack/testExamplesE2EAgainstKustomize.sh HEAD
+
 .PHONY:
 test-examples-kustomize-against-latest: $(MYGOBIN)/mdrip
 	( \
diff --git a/examples/helloWorld/README.md b/examples/helloWorld/README.md
index fcd36bb4c..0ec226d5b 100644
--- a/examples/helloWorld/README.md
+++ b/examples/helloWorld/README.md
@@ -22,7 +22,7 @@ Steps:
 
 First define a place to work:
 
-<!-- @makeWorkplace @testAgainstLatestRelease -->
+<!-- @makeWorkplace @testAgainstLatestRelease @testE2EAgainstLatestRelease-->
 ```
 DEMO_HOME=$(mktemp -d)
 ```
@@ -44,7 +44,7 @@ To keep this document shorter, the base resources are
 off in a supplemental data directory rather than
 declared here as HERE documents.  Download them:
 
-<!-- @downloadBase @testAgainstLatestRelease -->
+<!-- @downloadBase @testAgainstLatestRelease @testE2EAgainstLatestRelease-->
 ```
 BASE=$DEMO_HOME/base
 mkdir -p $BASE
@@ -309,3 +309,31 @@ To deploy, pipe the above commands to kubectl apply:
 > kustomize build $OVERLAYS/production |\
 >    kubectl apply -f -
 > ```
+
+[Alpha] To do end to end tests using kustomize, use the following commands on any folder. You should have GOPATH set up and "kind" installed(https://github.com/kubernetes-sigs/kind).
+
+<!-- @e2eTest @testE2EAgainstLatestRelease -->
+```
+MYGOBIN=$GOPATH/bin
+kind delete cluster;
+kind create cluster;
+$MYGOBIN/kustomize build $BASE | kubectl apply -f -;
+status=$(mktemp);
+$MYGOBIN/resource status events $BASE #Waits for all transient events to finish
+$MYGOBIN/resource status fetch $BASE > $status
+
+test 1 == \
+  $(grep "apps/v1/Deployment" $status | grep "Deployment is available. Replicas: 3" | wc -l); \
+  echo $?
+
+test 1 == \
+  $(grep "v1/ConfigMap" $status | grep "Resource is always ready" | wc -l); \
+  echo $?
+
+test 1 == \
+  $(grep "v1/Service" $status | grep "Service is ready" | wc -l); \
+  echo $?
+
+$MYGOBIN/kustomize build $BASE | kubectl delete -f -;
+kind delete cluster;
+```
\ No newline at end of file
diff --git a/hack/testExamplesE2EAgainstKustomize.sh b/hack/testExamplesE2EAgainstKustomize.sh
new file mode 100755
index 000000000..a6c44195b
--- /dev/null
+++ b/hack/testExamplesE2EAgainstKustomize.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+#
+# Copyright 2019 The Kubernetes Authors.
+# SPDX-License-Identifier: Apache-2.0
+
+set -o nounset
+set -o errexit
+set -o pipefail
+
+mdrip --blockTimeOut 60m0s --mode test \
+    --label testE2EAgainstLatestRelease examples
+
+echo "Example e2e tests passed against ${version}."