1/* 2Copyright 2017 The Kubernetes Authors. 3 4Licensed under the Apache License, Version 2.0 (the "License"); 5you may not use this file except in compliance with the License. 6You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10Unless required by applicable law or agreed to in writing, software 11distributed under the License is distributed on an "AS IS" BASIS, 12WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13See the License for the specific language governing permissions and 14limitations under the License. 15*/ 16 17package openapi_test 18 19import ( 20 "fmt" 21 22 openapi_v2 "github.com/googleapis/gnostic/openapiv2" 23 . "github.com/onsi/ginkgo" 24 . "github.com/onsi/gomega" 25 26 "k8s.io/kubectl/pkg/util/openapi" 27) 28 29// FakeCounter returns a "null" document and the specified error. It 30// also counts how many times the OpenAPISchema method has been called. 31type FakeCounter struct { 32 Calls int 33 Err error 34} 35 36func (f *FakeCounter) OpenAPISchema() (*openapi_v2.Document, error) { 37 f.Calls = f.Calls + 1 38 return nil, f.Err 39} 40 41var _ = Describe("Getting the Resources", func() { 42 var client FakeCounter 43 var instance openapi.Getter 44 var expectedData openapi.Resources 45 46 BeforeEach(func() { 47 client = FakeCounter{} 48 instance = openapi.NewOpenAPIGetter(&client) 49 var err error 50 expectedData, err = openapi.NewOpenAPIData(nil) 51 Expect(err).To(BeNil()) 52 }) 53 54 Context("when the server returns a successful result", func() { 55 It("should return the same data for multiple calls", func() { 56 Expect(client.Calls).To(Equal(0)) 57 58 result, err := instance.Get() 59 Expect(err).To(BeNil()) 60 Expect(result).To(Equal(expectedData)) 61 Expect(client.Calls).To(Equal(1)) 62 63 result, err = instance.Get() 64 Expect(err).To(BeNil()) 65 Expect(result).To(Equal(expectedData)) 66 // No additional client calls expected 67 Expect(client.Calls).To(Equal(1)) 68 }) 69 }) 70 71 Context("when the server returns an unsuccessful result", func() { 72 It("should return the same instance for multiple calls.", func() { 73 Expect(client.Calls).To(Equal(0)) 74 75 client.Err = fmt.Errorf("expected error") 76 _, err := instance.Get() 77 Expect(err).To(Equal(client.Err)) 78 Expect(client.Calls).To(Equal(1)) 79 80 _, err = instance.Get() 81 Expect(err).To(Equal(client.Err)) 82 // No additional client calls expected 83 Expect(client.Calls).To(Equal(1)) 84 }) 85 }) 86}) 87