test: added tests for the pkg/kubernetes package (#896)

Signed-off-by: VaibhavMalik4187 <vaibhavmalik2018@gmail.com>

pkg/kubernetes/apireference_test.go

@@ -0,0 +1,106 @@
+/*
+Copyright 2024 The K8sGPT 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 kubernetes
+
+import (
+	"testing"
+
+	openapi_v2 "github.com/google/gnostic/openapiv2"
+	"github.com/stretchr/testify/require"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+func TestGetApiDocV2(t *testing.T) {
+	k8s := &K8sApiReference{
+		ApiVersion: schema.GroupVersion{
+			Group:   "group.v1",
+			Version: "v1",
+		},
+		OpenapiSchema: &openapi_v2.Document{
+			Definitions: &openapi_v2.Definitions{
+				AdditionalProperties: []*openapi_v2.NamedSchema{
+					{
+						Name: "group.v1.kind",
+						Value: &openapi_v2.Schema{
+							Title: "test",
+							Properties: &openapi_v2.Properties{
+								AdditionalProperties: []*openapi_v2.NamedSchema{
+									{
+										Name: "schema1",
+										Value: &openapi_v2.Schema{
+											Title:       "test",
+											Description: "schema1 description",
+											Type: &openapi_v2.TypeItem{
+												Value: []string{"string"},
+											},
+										},
+									},
+									{
+										Name: "schema2",
+										Value: &openapi_v2.Schema{
+											Items: &openapi_v2.ItemsItem{
+												Schema: []*openapi_v2.Schema{
+													{
+														Title: "random-schema",
+													},
+												},
+											},
+											Title:       "test",
+											XRef:        "xref",
+											Description: "schema2 description",
+											Type: &openapi_v2.TypeItem{
+												Value: []string{"bool"},
+											},
+										},
+									},
+								},
+							},
+						},
+					},
+					{
+						Name: "group",
+					},
+				},
+			},
+		},
+		Kind: "kind",
+	}
+
+	tests := []struct {
+		name           string
+		field          string
+		expectedOutput string
+	}{
+		{
+			name: "empty field",
+		},
+		{
+			name:           "2 schemas",
+			field:          "schema2.schema1",
+			expectedOutput: "",
+		},
+		{
+			name:           "schema1 description",
+			field:          "schema1",
+			expectedOutput: "schema1 description",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			output := k8s.GetApiDocV2(tt.field)
+			require.Equal(t, tt.expectedOutput, output)
+		})
+	}
+}