Files
kubevela/pkg/appfile/template_test.go
T
Yue WangandGitHub 63b348f4d8 implement cli vela system live-diff (#1419)
move dry-run and live-diff into an independent pkg

WIP add sample and doc

WIP unit test for live-diff

add unit test

Signed-off-by: roy wang <seiwy2010@gmail.com>
2021-04-13 12:29:25 +08:00

506 lines
12 KiB
Go

/*
Copyright 2021 The KubeVela Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package appfile
import (
"context"
"testing"
"cuelang.org/go/cue"
"github.com/crossplane/crossplane-runtime/pkg/test"
"github.com/google/go-cmp/cmp"
"github.com/stretchr/testify/assert"
"k8s.io/apimachinery/pkg/runtime"
ktypes "k8s.io/apimachinery/pkg/types"
"github.com/oam-dev/kubevela/apis/core.oam.dev/common"
"github.com/oam-dev/kubevela/apis/core.oam.dev/v1alpha2"
"github.com/oam-dev/kubevela/apis/core.oam.dev/v1beta1"
"github.com/oam-dev/kubevela/apis/types"
"github.com/oam-dev/kubevela/pkg/oam"
"github.com/oam-dev/kubevela/pkg/oam/mock"
oamutil "github.com/oam-dev/kubevela/pkg/oam/util"
)
func TestLoadComponentTemplate(t *testing.T) {
cueTemplate := `
context: {
name: "test"
}
output: {
apiVersion: "apps/v1"
kind: "Deployment"
spec: {
selector: matchLabels: {
"app.oam.dev/component": context.name
}
template: {
metadata: labels: {
"app.oam.dev/component": context.name
}
spec: {
containers: [{
name: context.name
image: parameter.image
if parameter["cmd"] != _|_ {
command: parameter.cmd
}
}]
}
}
selector:
matchLabels:
"app.oam.dev/component": context.name
}
}
parameter: {
// +usage=Which image would you like to use for your service
// +short=i
image: string
cmd?: [...string]
}
`
var componentDefintion = `
apiVersion: core.oam.dev/v1alpha2
kind: ComponentDefinition
metadata:
name: worker
namespace: default
annotations:
definition.oam.dev/description: "Long-running scalable backend worker without network endpoint"
spec:
workload:
definition:
apiVersion: apps/v1
kind: Deployment
extension:
template: |
` + cueTemplate
// Create mock client
tclient := test.MockClient{
MockGet: func(ctx context.Context, key ktypes.NamespacedName, obj runtime.Object) error {
switch o := obj.(type) {
case *v1beta1.ComponentDefinition:
cd, err := oamutil.UnMarshalStringToComponentDefinition(componentDefintion)
if err != nil {
return err
}
*o = *cd
}
return nil
},
}
tdm := mock.NewMockDiscoveryMapper()
tdm.MockKindsFor = mock.NewMockKindsFor("Deployment", "v1")
temp, err := LoadTemplate(context.TODO(), tdm, &tclient, "worker", types.TypeComponentDefinition)
if err != nil {
t.Error(err)
return
}
var r cue.Runtime
inst, err := r.Compile("-", temp.TemplateStr)
if err != nil {
t.Error(err)
return
}
instDest, err := r.Compile("-", cueTemplate)
if err != nil {
t.Error(err)
return
}
s1, _ := inst.Value().String()
s2, _ := instDest.Value().String()
if s1 != s2 {
t.Errorf("parsered template is not correct")
}
}
func TestLoadWorkloadTemplate(t *testing.T) {
cueTemplate := `
context: {
name: "test"
}
output: {
apiVersion: "apps/v1"
kind: "Deployment"
spec: {
selector: matchLabels: {
"app.oam.dev/component": context.name
}
template: {
metadata: labels: {
"app.oam.dev/component": context.name
}
spec: {
containers: [{
name: context.name
image: parameter.image
if parameter["cmd"] != _|_ {
command: parameter.cmd
}
}]
}
}
selector:
matchLabels:
"app.oam.dev/component": context.name
}
}
parameter: {
// +usage=Which image would you like to use for your service
// +short=i
image: string
cmd?: [...string]
}
`
var workloadDefintion = `
apiVersion: core.oam.dev/v1alpha2
kind: WorkloadDefinition
metadata:
name: worker
namespace: default
annotations:
definition.oam.dev/description: "Long-running scalable backend worker without network endpoint"
spec:
workload:
definition:
apiVersion: apps/v1
kind: Deployment
extension:
template: |
` + cueTemplate
// Create mock client
tclient := test.MockClient{
MockGet: func(ctx context.Context, key ktypes.NamespacedName, obj runtime.Object) error {
switch o := obj.(type) {
case *v1alpha2.WorkloadDefinition:
cd, err := oamutil.UnMarshalStringToWorkloadDefinition(workloadDefintion)
if err != nil {
return err
}
*o = *cd
case *v1alpha2.ComponentDefinition:
err := mock.NewMockNotFoundErr()
return err
}
return nil
},
}
tdm := mock.NewMockDiscoveryMapper()
tdm.MockKindsFor = mock.NewMockKindsFor("Deployment", "v1")
temp, err := LoadTemplate(context.TODO(), tdm, &tclient, "worker", types.TypeComponentDefinition)
if err != nil {
t.Error(err)
return
}
var r cue.Runtime
inst, err := r.Compile("-", temp.TemplateStr)
if err != nil {
t.Error(err)
return
}
instDest, err := r.Compile("-", cueTemplate)
if err != nil {
t.Error(err)
return
}
s1, _ := inst.Value().String()
s2, _ := instDest.Value().String()
if s1 != s2 {
t.Errorf("parsered template is not correct")
}
}
func TestLoadTraitTemplate(t *testing.T) {
cueTemplate := `
parameter: {
domain: string
http: [string]: int
}
context: {
name: "test"
}
// trait template can have multiple outputs in one trait
outputs: service: {
apiVersion: "v1"
kind: "Service"
metadata:
name: context.name
spec: {
selector:
"app.oam.dev/component": context.name
ports: [
for k, v in parameter.http {
port: v
targetPort: v
},
]
}
}
outputs: ingress: {
apiVersion: "networking.k8s.io/v1beta1"
kind: "Ingress"
metadata:
name: context.name
spec: {
rules: [{
host: parameter.domain
http: {
paths: [
for k, v in parameter.http {
path: k
backend: {
serviceName: context.name
servicePort: v
}
},
]
}
}]
}
}
`
var traitDefintion = `
apiVersion: core.oam.dev/v1alpha2
kind: TraitDefinition
metadata:
annotations:
definition.oam.dev/description: "Configures K8s ingress and service to enable web traffic for your service.
Please use route trait in cap center for advanced usage."
name: ingress
namespace: default
spec:
status:
customStatus: |-
if len(context.outputs.ingress.status.loadBalancer.ingress) > 0 {
message: "Visiting URL: " + context.outputs.ingress.spec.rules[0].host + ", IP: " + context.outputs.ingress.status.loadBalancer.ingress[0].ip
}
if len(context.outputs.ingress.status.loadBalancer.ingress) == 0 {
message: "No loadBalancer found, visiting by using 'vela port-forward " + context.appName + " --route'\n"
}
healthPolicy: |
isHealth: len(context.outputs.service.spec.clusterIP) > 0
appliesToWorkloads:
- webservice
- worker
schematic:
cue:
template: |
` + cueTemplate
// Create mock client
tclient := test.MockClient{
MockGet: func(ctx context.Context, key ktypes.NamespacedName, obj runtime.Object) error {
switch o := obj.(type) {
case *v1beta1.TraitDefinition:
wd, err := oamutil.UnMarshalStringToTraitDefinition(traitDefintion)
if err != nil {
return err
}
*o = *wd
}
return nil
},
}
tdm := mock.NewMockDiscoveryMapper()
tdm.MockKindsFor = mock.NewMockKindsFor("Deployment", "v1")
temp, err := LoadTemplate(context.TODO(), tdm, &tclient, "ingress", types.TypeTrait)
if err != nil {
t.Error(err)
return
}
var r cue.Runtime
inst, err := r.Compile("-", temp.TemplateStr)
if err != nil {
t.Error(err)
return
}
instDest, err := r.Compile("-", cueTemplate)
if err != nil {
t.Error(err)
return
}
s1, _ := inst.Value().String()
s2, _ := instDest.Value().String()
if s1 != s2 {
t.Errorf("parsered template is not correct")
}
}
func TestLoadSchematicToTemplate(t *testing.T) {
testCases := map[string]struct {
schem *common.Schematic
status *common.Status
ext *runtime.RawExtension
want *Template
}{
"only tmp": {
schem: &common.Schematic{CUE: &common.CUE{Template: "t1"}},
want: &Template{
TemplateStr: "t1",
CapabilityCategory: types.CUECategory,
},
},
"no tmp,but has extension": {
ext: &runtime.RawExtension{Raw: []byte(`{"template":"t1"}`)},
want: &Template{
TemplateStr: "t1",
CapabilityCategory: types.CUECategory,
},
},
"no tmp,but has extension without temp": {
ext: &runtime.RawExtension{Raw: []byte(`{"template":{"t1":"t2"}}`)},
want: &Template{
TemplateStr: "",
CapabilityCategory: types.CUECategory,
},
},
"tmp with status": {
schem: &common.Schematic{CUE: &common.CUE{Template: "t1"}},
status: &common.Status{
CustomStatus: "s1",
HealthPolicy: "h1",
},
want: &Template{
TemplateStr: "t1",
CustomStatus: "s1",
Health: "h1",
CapabilityCategory: types.CUECategory,
},
},
"no tmp only status": {
status: &common.Status{
CustomStatus: "s1",
HealthPolicy: "h1",
},
want: &Template{
CustomStatus: "s1",
Health: "h1",
},
},
}
for reason, casei := range testCases {
gtmp := &Template{}
err := loadSchematicToTemplate(gtmp, casei.status, casei.schem, casei.ext)
assert.NoError(t, err, reason)
assert.Equal(t, casei.want, gtmp, reason)
}
}
func TestDryRunTemplateLoader(t *testing.T) {
compDefStr := `
apiVersion: core.oam.dev/v1alpha2
kind: ComponentDefinition
metadata:
name: myworker
spec:
status:
customStatus: testCustomStatus
healthPolicy: testHealthPolicy
workload:
definition:
apiVersion: apps/v1
kind: Deployment
schematic:
cue:
template: testCUE `
traitDefStr := `
apiVersion: core.oam.dev/v1alpha2
kind: TraitDefinition
metadata:
name: myingress
spec:
status:
customStatus: testCustomStatus
healthPolicy: testHealthPolicy
appliesToWorkloads:
- webservice
- worker
schematic:
cue:
template: testCUE `
compDef, _ := oamutil.UnMarshalStringToComponentDefinition(compDefStr)
traitDef, _ := oamutil.UnMarshalStringToTraitDefinition(traitDefStr)
unstrctCompDef, _ := oamutil.Object2Unstructured(compDef)
unstrctTraitDef, _ := oamutil.Object2Unstructured(traitDef)
expectedCompTmpl := &Template{
TemplateStr: "testCUE",
Health: "testHealthPolicy",
CustomStatus: "testCustomStatus",
CapabilityCategory: types.CUECategory,
Reference: common.WorkloadGVK{
APIVersion: "apps/v1",
Kind: "Deployment",
},
Helm: nil,
Kube: nil,
ComponentDefinition: compDef,
}
expectedTraitTmpl := &Template{
TemplateStr: "testCUE",
Health: "testHealthPolicy",
CustomStatus: "testCustomStatus",
CapabilityCategory: types.CUECategory,
Helm: nil,
Kube: nil,
TraitDefinition: traitDef,
}
dryRunLoadTemplate := DryRunTemplateLoader([]oam.Object{unstrctCompDef, unstrctTraitDef})
compTmpl, err := dryRunLoadTemplate(nil, nil, nil, "myworker", types.TypeComponentDefinition)
if err != nil {
t.Error("failed load template of component defintion", err)
}
if diff := cmp.Diff(expectedCompTmpl, compTmpl); diff != "" {
t.Fatal("failed load template of component defintion", diff)
}
traitTmpl, err := dryRunLoadTemplate(nil, nil, nil, "myingress", types.TypeTrait)
if err != nil {
t.Error("failed load template of component defintion", err)
}
if diff := cmp.Diff(expectedTraitTmpl, traitTmpl); diff != "" {
t.Fatal("failed load template of trait definition ", diff)
}
}