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util_test.go
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util_test.go
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package kubeutil
import (
"context"
"testing"
v1 "k8s.io/api/apps/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
clientgoscheme "k8s.io/client-go/kubernetes/scheme"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client/fake"
"sigs.k8s.io/controller-runtime/pkg/log/zap"
)
type m = map[string]interface{}
func TestPatchOrCreate(t *testing.T) {
ctx := context.Background()
log := ctrl.Log.WithName("test")
ctrl.SetLogger(zap.New(func(o *zap.Options) {
o.Development = true
}))
var err error
scheme := runtime.NewScheme()
clientgoscheme.AddToScheme(scheme)
c := fake.NewFakeClientWithScheme(scheme)
nn := types.NamespacedName{Name: "test", Namespace: "test"}
fetch := func() *v1.Deployment {
obj := &v1.Deployment{}
err = c.Get(ctx, nn, obj)
if err != nil {
t.Fatal(err)
}
return obj
}
u := unstructured.Unstructured{
Object: m{
"kind": "Deployment",
"apiVersion": "apps/v1",
"metadata": m{
"name": nn.Name,
"namespace": nn.Namespace,
},
"spec": m{
"replicas": int64(1),
},
},
}
err = CreateOrUpdate(ctx, log, c, &u)
if err != nil {
t.Fatal(err)
}
// make sure get works without error
_ = fetch()
u.SetLabels(map[string]string{"applied": "by-patch"})
err = CreateOrUpdate(ctx, log, c, &u)
if err != nil {
t.Fatal(err)
}
d := fetch()
if d.GetLabels()["applied"] != "by-patch" {
t.Fatal("expected the deployment to be patched with new labels")
}
// test updating with static object
deployment := v1.Deployment{
ObjectMeta: metav1.ObjectMeta{
Name: nn.Name,
Namespace: nn.Namespace,
Labels: map[string]string{
"applied": "static-object",
},
},
Spec: v1.DeploymentSpec{},
}
err = CreateOrUpdate(ctx, log, c, &deployment)
if err != nil {
t.Fatal(err)
}
d = fetch()
if d.GetLabels()["applied"] != "static-object" {
t.Fatalf("expected the deployment to be patched with new labels: %s", d.GetLabels())
}
/*
XXX does not currently work
// test updating with mixed object
um := unstructured.Unstructured{
Object: m{
"kind": "Deployment",
"apiVersion": "apps/v1",
"metadata": m{
"name": nn.Name,
"namespace": nn.Namespace,
"labels": m{
"applied": "mixed-object",
},
},
"spec": &(v1.DeploymentSpec{}),
},
}
err = CreateOrUpdate(ctx, log, c, &um)
if err != nil {
t.Fatal(err)
}
if d.GetLabels()["applied"] != "mixed-object" {
t.Fatalf("expected the deployment to be patched with new labels: %s", d.GetLabels())
}
*/
}