mirror of
https://github.com/kubernetes-sigs/kustomize.git
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388 lines
8.4 KiB
Go
388 lines
8.4 KiB
Go
// Copyright 2019 The Kubernetes Authors.
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// SPDX-License-Identifier: Apache-2.0
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package resource_test
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import (
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"fmt"
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"testing"
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"sigs.k8s.io/kustomize/api/konfig"
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"github.com/stretchr/testify/assert"
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"sigs.k8s.io/kustomize/api/filesys"
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"sigs.k8s.io/kustomize/api/loader"
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. "sigs.k8s.io/kustomize/api/resource"
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"sigs.k8s.io/kustomize/api/types"
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)
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func TestSliceFromBytes(t *testing.T) {
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type testCase struct {
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input string
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expected []string
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}
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testCases := map[string]testCase{
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"empty1": {
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input: "",
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expected: []string{},
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},
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"empty2": {
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input: `
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---
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---
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`,
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expected: []string{},
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},
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"deployment1": {
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input: `
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: pooh
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---
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`,
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expected: []string{
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`apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: pooh
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`,
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},
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},
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"deployment2": {
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input: `
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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annotations:
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baseAnno: This is a base annotation
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labels:
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app: mungebot
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foo: bar
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name: baseprefix-mungebot
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spec:
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replicas: 1
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selector:
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matchLabels:
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foo: bar
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template:
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metadata:
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annotations:
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baseAnno: This is a base annotation
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labels:
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app: mungebot
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foo: bar
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spec:
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containers:
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- env:
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- name: foo
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value: bar
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image: nginx
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name: nginx
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ports:
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- containerPort: 80
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---
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apiVersion: v1
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kind: Service
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metadata:
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annotations:
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baseAnno: This is a base annotation
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labels:
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app: mungebot
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foo: bar
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name: baseprefix-mungebot-service
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spec:
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ports:
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- port: 7002
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selector:
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app: mungebot
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foo: bar
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`,
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expected: []string{
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`apiVersion: apps/v1
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kind: Deployment
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metadata:
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annotations:
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baseAnno: This is a base annotation
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labels:
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app: mungebot
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foo: bar
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name: baseprefix-mungebot
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spec:
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replicas: 1
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selector:
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matchLabels:
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foo: bar
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template:
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metadata:
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annotations:
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baseAnno: This is a base annotation
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labels:
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app: mungebot
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foo: bar
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spec:
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containers:
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- env:
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- name: foo
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value: bar
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image: nginx
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name: nginx
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ports:
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- containerPort: 80
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`,
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`apiVersion: v1
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kind: Service
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metadata:
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annotations:
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baseAnno: This is a base annotation
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labels:
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app: mungebot
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foo: bar
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name: baseprefix-mungebot-service
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spec:
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ports:
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- port: 7002
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selector:
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app: mungebot
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foo: bar
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`,
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},
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},
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}
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for name := range testCases {
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tc := testCases[name]
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t.Run(name, func(t *testing.T) {
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result, err := factory.SliceFromBytes([]byte(tc.input))
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if err != nil {
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t.Fatalf("%v: fails with err: %v", name, err)
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}
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if len(result) != len(tc.expected) {
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for i := range result {
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bytes, err := result[i].AsYAML()
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if err != nil {
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t.Fatalf("%v: result to YAML fails with err: %v", name, err)
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}
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tmp := string(bytes)
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t.Logf("--- %d:\n%s", i, tmp)
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}
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t.Fatalf(
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"%v: actual len %d != expected len %d",
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name, len(result), len(tc.expected))
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}
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for i := range tc.expected {
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bytes, err := result[i].AsYAML()
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if err != nil {
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t.Fatalf("%v: result to YAML fails with err: %v", name, err)
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}
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tmp := string(bytes)
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if tmp != tc.expected[i] {
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t.Fatalf(
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"%v: string mismatch in item %d\n"+
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"actual:\n-----\n%s\n-----\n"+
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"expected:\n-----\n%s\n-----\n",
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name, i, tmp, tc.expected[i])
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}
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}
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})
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}
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}
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func TestSliceFromPatches(t *testing.T) {
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patchGood1 := types.PatchStrategicMerge("patch1.yaml")
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patch1 := `
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: pooh
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`
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patchGood2 := types.PatchStrategicMerge("patch2.yaml")
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patch2 := `
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: winnie
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namespace: hundred-acre-wood
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---
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# some comment
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---
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---
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`
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patchBad := types.PatchStrategicMerge("patch3.yaml")
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patch3 := `
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WOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOT: woot
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`
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patchList := types.PatchStrategicMerge("patch4.yaml")
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patch4 := `
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apiVersion: v1
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kind: List
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items:
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- apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: pooh
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- apiVersion: v1
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kind: ConfigMap
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metadata:
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name: winnie
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namespace: hundred-acre-wood
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`
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patchList2 := types.PatchStrategicMerge("patch5.yaml")
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patch5 := `
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apiVersion: v1
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kind: DeploymentList
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items:
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- apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: deployment-a
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spec: &hostAliases
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template:
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spec:
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hostAliases:
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- hostnames:
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- a.example.com
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ip: 8.8.8.8
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- apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: deployment-b
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spec:
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<<: *hostAliases
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`
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patchList3 := types.PatchStrategicMerge("patch6.yaml")
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patch6 := `
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apiVersion: v1
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kind: List
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items:
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`
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patchList4 := types.PatchStrategicMerge("patch7.yaml")
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patch7 := `
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apiVersion: v1
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kind: List
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`
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testDeploymentSpec := map[string]interface{}{
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"template": map[string]interface{}{
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"spec": map[string]interface{}{
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"hostAliases": []interface{}{
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map[string]interface{}{
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"hostnames": []interface{}{
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"a.example.com",
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},
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"ip": "8.8.8.8",
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},
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},
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},
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},
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}
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testDeploymentA := factory.FromMap(
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map[string]interface{}{
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"apiVersion": "apps/v1",
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"kind": "Deployment",
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"metadata": map[string]interface{}{
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"name": "deployment-a",
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},
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"spec": testDeploymentSpec,
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})
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testDeploymentB := factory.FromMap(
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map[string]interface{}{
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"apiVersion": "apps/v1",
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"kind": "Deployment",
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"metadata": map[string]interface{}{
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"name": "deployment-b",
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},
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"spec": testDeploymentSpec,
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})
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fSys := filesys.MakeFsInMemory()
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fSys.WriteFile(string(patchGood1), []byte(patch1))
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fSys.WriteFile(string(patchGood2), []byte(patch2))
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fSys.WriteFile(string(patchBad), []byte(patch3))
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fSys.WriteFile(string(patchList), []byte(patch4))
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fSys.WriteFile(string(patchList2), []byte(patch5))
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fSys.WriteFile(string(patchList3), []byte(patch6))
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fSys.WriteFile(string(patchList4), []byte(patch7))
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ldr, err := loader.NewLoader(
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loader.RestrictionRootOnly, filesys.Separator, fSys)
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if err != nil {
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t.Fatal(err)
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}
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tests := []struct {
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name string
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input []types.PatchStrategicMerge
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expectedOut []*Resource
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expectedErr bool
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}{
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{
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name: "happy",
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input: []types.PatchStrategicMerge{patchGood1, patchGood2},
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expectedOut: []*Resource{testDeployment, testConfigMap},
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expectedErr: false,
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},
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{
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name: "badFileName",
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input: []types.PatchStrategicMerge{patchGood1, "doesNotExist"},
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expectedOut: []*Resource{},
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expectedErr: true,
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},
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{
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name: "badData",
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input: []types.PatchStrategicMerge{patchGood1, patchBad},
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expectedOut: []*Resource{},
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expectedErr: true,
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},
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{
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name: "listOfPatches",
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input: []types.PatchStrategicMerge{patchList},
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expectedOut: []*Resource{testDeployment, testConfigMap},
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expectedErr: false,
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},
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{
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name: "listWithAnchorReference",
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input: []types.PatchStrategicMerge{patchList2},
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expectedOut: []*Resource{testDeploymentA, testDeploymentB},
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// See https://github.com/kubernetes-sigs/kustomize/issues/3271
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// This test should not have an error, but does when kyaml is used.
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// The error using kyaml is:
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// json: unsupported type: map[interface {}]interface {}
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// probably arising from too many conversions between
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// yaml, json, Resource, RNode, Unstructured etc.
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// These conversions can be removed after closing
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// https://github.com/kubernetes-sigs/kustomize/issues/2506
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// TODO(#3304): DECISION - still a bug.
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expectedErr: konfig.FlagEnableKyamlDefaultValue,
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},
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{
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name: "listWithNoEntries",
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input: []types.PatchStrategicMerge{patchList3},
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expectedOut: []*Resource{},
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expectedErr: false,
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},
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{
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name: "listWithNoItems",
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input: []types.PatchStrategicMerge{patchList4},
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expectedOut: []*Resource{},
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expectedErr: false,
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},
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}
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for _, test := range tests {
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rs, err := factory.SliceFromPatches(ldr, test.input)
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if err != nil {
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assert.True(t, test.expectedErr,
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fmt.Sprintf("in test %s, got unexpected error: %v", test.name, err))
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continue
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}
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assert.False(t, test.expectedErr, "expected no error in "+test.name)
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assert.Equal(t, len(test.expectedOut), len(rs))
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for i := range rs {
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expYaml, err := test.expectedOut[i].AsYAML()
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assert.NoError(t, err)
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actYaml, err := rs[i].AsYAML()
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assert.NoError(t, err)
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assert.Equal(t, expYaml, actYaml)
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}
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}
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}
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