Tests: add tests for multi functionality (#351)

* tests: add tests for multi functionality

* tests: add tests for multi functionality

* tests: add tests for multi functionality - lint fix

---------

Co-authored-by: Yonah Dissen <[email protected]>

pkg/kor/multi_test.go

@@ -0,0 +1,108 @@
+package kor
+
+import (
+	"context"
+	"encoding/json"
+	"reflect"
+	"testing"
+
+	corev1 "k8s.io/api/core/v1"
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/kubernetes/fake"
+
+	"github.com/yonahd/kor/pkg/common"
+	"github.com/yonahd/kor/pkg/filters"
+)
+
+func createTestMultiResources(t *testing.T) *fake.Clientset {
+	clientset := fake.NewClientset()
+
+	_, err := clientset.CoreV1().Namespaces().Create(context.TODO(), &corev1.Namespace{
+		ObjectMeta: v1.ObjectMeta{Name: testNamespace},
+	}, v1.CreateOptions{})
+
+	if err != nil {
+		t.Fatalf("Error creating namespace %s: %v", testNamespace, err)
+	}
+
+	deployment1 := CreateTestDeployment(testNamespace, "test-deployment1", 0, AppLabels)
+	_, err = clientset.AppsV1().Deployments(testNamespace).Create(context.TODO(), deployment1, v1.CreateOptions{})
+	if err != nil {
+		t.Fatalf("Error creating fake deployment: %v", err)
+	}
+
+	configmap1 := CreateTestConfigmap(testNamespace, "configmap-1", AppLabels)
+	_, err = clientset.CoreV1().ConfigMaps(testNamespace).Create(context.TODO(), configmap1, v1.CreateOptions{})
+	if err != nil {
+		t.Fatalf("Error creating fake configmap: %v", err)
+	}
+
+	return clientset
+
+}
+
+func TestRetrieveNamespaceDiff(t *testing.T) {
+	clientset := createTestMultiResources(t)
+	resourceList := []string{"cm", "pdb", "deployment"}
+	filterOpts := &filters.Options{}
+
+	namespaceDiff := retrieveNamespaceDiffs(clientset, testNamespace, resourceList, filterOpts)
+
+	if len(namespaceDiff) != 3 {
+		t.Fatalf("Expected 3 diffs, got %d", len(namespaceDiff))
+	}
+
+	if namespaceDiff[0].resourceType != "ConfigMap" && namespaceDiff[0].diff[0].Name != "configmap-1" {
+		t.Fatalf("Expected configmap-1, got %s", namespaceDiff[0].diff[0].Name)
+	}
+
+	if namespaceDiff[1].resourceType != "Pdb" && namespaceDiff[1].diff != nil {
+		t.Fatalf("Expected nil, got %s", namespaceDiff[1].diff[0].Name)
+	}
+
+	if namespaceDiff[2].resourceType != "Deployment" && namespaceDiff[2].diff[0].Name != "test-deployment1" {
+		t.Fatalf("Expected test-deployment1, got %s", namespaceDiff[2].diff[0].Name)
+	}
+
+}
+
+func TestGetUnusedMulti(t *testing.T) {
+	clientset := createTestMultiResources(t)
+	resourceList := "cm,pdb,deployment"
+
+	opts := common.Opts{
+		WebhookURL:    "",
+		Channel:       "",
+		Token:         "",
+		DeleteFlag:    false,
+		NoInteractive: true,
+		GroupBy:       "namespace",
+	}
+
+	output, err := GetUnusedMulti(resourceList, &filters.Options{}, clientset, nil, nil, "json", opts)
+
+	if err != nil {
+		t.Fatalf("Error calling GetUnusedMulti: %v", err)
+	}
+
+	expectedOutput := map[string]map[string][]string{
+		"test-namespace": {
+			"ConfigMap": {
+				"configmap-1",
+			},
+			"Deployment": {
+				"test-deployment1",
+			},
+		},
+	}
+
+	var actualOutput map[string]map[string][]string
+	if err := json.Unmarshal([]byte(output), &actualOutput); err != nil {
+		t.Fatalf("Error unmarshaling actual output: %v", err)
+	}
+
+	if !reflect.DeepEqual(expectedOutput, actualOutput) {
+		t.Errorf("Expected output does not match \n actualOutput:\n %s \n expectedOutput:\n %s", actualOutput, expectedOutput)
+	}
+
+}