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kubernetes_test.go
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kubernetes_test.go
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package mapstore
import (
"context"
"testing"
"github.com/stretchr/testify/assert"
corev1 "k8s.io/api/core/v1"
v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes/fake"
)
const (
k8sTestName = "foobar"
k8sTestNamespace = "ns-foobar"
)
func fakeKubernetesClient() *kubeClient {
return &kubeClient{fake.NewSimpleClientset(), k8sTestNamespace}
}
func TestKubernetesGetConfigMap(t *testing.T) {
fakeClient := fakeKubernetesClient()
// Create a ConfigMap that we can fetch.
_, err := fakeClient.client.CoreV1().ConfigMaps(k8sTestNamespace).Create(context.Background(), &corev1.ConfigMap{
ObjectMeta: v1.ObjectMeta{Name: k8sTestName, Namespace: k8sTestNamespace},
BinaryData: map[string][]byte{"foo": []byte("bar")},
}, v1.CreateOptions{})
assert.NoError(t, err)
// Now try fetching the ConfigMap.
cm, err := fakeClient.getConfigMap(k8sTestName)
assert.NoError(t, err)
assert.NotNil(t, cm)
assert.Equal(t, "bar", string(cm.BinaryData["foo"]))
}
func TestKubernetesGetConfigMapError(t *testing.T) {
fakeClient := fakeKubernetesClient()
// Now try fetching the ConfigMap.
cm, err := fakeClient.getConfigMap(k8sTestName)
assert.Error(t, err)
assert.Nil(t, cm)
}
func TestKubernetesGet(t *testing.T) {
data := map[string][]byte{"foo": []byte("bar")}
fakeClient := fakeKubernetesClient()
// Create a ConfigMap that we can fetch.
_, err := fakeClient.client.CoreV1().ConfigMaps(k8sTestNamespace).Create(context.Background(), &corev1.ConfigMap{
ObjectMeta: v1.ObjectMeta{Name: k8sTestName, Namespace: k8sTestNamespace},
BinaryData: data,
}, v1.CreateOptions{})
assert.NoError(t, err)
// Now try fetching the ConfigMap.
result, err := fakeClient.get(k8sTestName)
assert.NoError(t, err)
assert.NotNil(t, result)
assert.Equal(t, data, result)
}
func TestKubernetesGetError(t *testing.T) {
kc := fakeKubernetesClient()
// Now try fetching the ConfigMap.
result, err := kc.get(k8sTestName)
assert.Error(t, err)
assert.Nil(t, result)
}
func TestKubernetesGetOrCreateWithNoConfigMap(t *testing.T) {
fakeClient := fakeKubernetesClient()
// Now try fetching the ConfigMap.
result, err := fakeClient.getOrCreateConfigMap(k8sTestName)
assert.NoError(t, err)
assert.NotNil(t, result)
assert.Empty(t, result.BinaryData)
// Create a ConfigMap that we can fetch.
cm, err := fakeClient.getConfigMap(k8sTestName)
assert.NoError(t, err)
assert.NotNil(t, cm)
assert.Empty(t, cm.BinaryData)
}
func TestKubernetesGetOrCreateWithExistingConfigMap(t *testing.T) {
data := map[string][]byte{"foo": []byte("bar")}
fakeClient := fakeKubernetesClient()
// Create a ConfigMap that we can fetch.
_, err := fakeClient.client.CoreV1().ConfigMaps(k8sTestNamespace).Create(context.Background(), &corev1.ConfigMap{
ObjectMeta: v1.ObjectMeta{Name: k8sTestName, Namespace: k8sTestNamespace},
BinaryData: data,
}, v1.CreateOptions{})
assert.NoError(t, err)
// Now try fetching the ConfigMap.
result, err := fakeClient.getOrCreateConfigMap(k8sTestName)
assert.NoError(t, err)
assert.NotNil(t, result)
assert.Equal(t, data, result.BinaryData)
}
func TestKubernetesSetCreate(t *testing.T) {
data := map[string][]byte{"foo": []byte("bar")}
fakeClient := fakeKubernetesClient()
err := fakeClient.set(k8sTestName, data)
assert.NoError(t, err)
// Now try fetching the ConfigMap.
result, err := fakeClient.get(k8sTestName)
assert.NoError(t, err)
assert.NotNil(t, result)
assert.Equal(t, data, result)
}
func TestKubernetesSetUpdate(t *testing.T) {
data := map[string][]byte{"foo": []byte("bar")}
fakeClient := fakeKubernetesClient()
// Create a ConfigMap that we can fetch.
_, err := fakeClient.client.CoreV1().ConfigMaps(k8sTestNamespace).Create(context.Background(), &corev1.ConfigMap{
ObjectMeta: v1.ObjectMeta{Name: k8sTestName, Namespace: k8sTestNamespace},
BinaryData: data,
}, v1.CreateOptions{})
assert.NoError(t, err)
newData := map[string][]byte{"foo": []byte("bar"), "num": []byte("one")}
err = fakeClient.set(k8sTestName, newData)
assert.NoError(t, err)
// Now try fetching the ConfigMap.
result, err := fakeClient.get(k8sTestName)
assert.NoError(t, err)
assert.NotNil(t, result)
assert.Equal(t, newData, result)
}
func TestKubernetesDelete(t *testing.T) {
fakeClient := fakeKubernetesClient()
// Create a ConfigMap that we can fetch.
_, err := fakeClient.client.CoreV1().ConfigMaps(k8sTestNamespace).Create(context.Background(), &corev1.ConfigMap{
ObjectMeta: v1.ObjectMeta{Name: k8sTestName, Namespace: k8sTestNamespace},
BinaryData: map[string][]byte{"foo": []byte("bar")},
}, v1.CreateOptions{})
assert.NoError(t, err)
// Now try fetching the ConfigMap.
err = fakeClient.delete(k8sTestName)
assert.NoError(t, err)
}
func TestKubernetesDeleteError(t *testing.T) {
fakeClient := fakeKubernetesClient()
err := fakeClient.delete(k8sTestName)
assert.NoError(t, err)
}