mirror of
https://github.com/kubernetes-sigs/external-dns.git
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81974cd8a0
* ref(sources): refactor source registration and lookup to be lazy. * fix(fake): don't make changes to passed in config values * rework without init, tests are missing * make client provider public * fix all tests * change parameter list order, minor improvements * clientprovider -> clientgenerator, switch naming for interface/struct
90 lines
2.8 KiB
Go
90 lines
2.8 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package source
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import (
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"errors"
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"testing"
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"k8s.io/client-go/kubernetes"
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"k8s.io/client-go/kubernetes/fake"
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"github.com/stretchr/testify/mock"
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"github.com/stretchr/testify/suite"
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)
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type MockClientGenerator struct {
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mock.Mock
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client kubernetes.Interface
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}
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func (m *MockClientGenerator) KubeClient() (kubernetes.Interface, error) {
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args := m.Called()
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if args.Error(1) == nil {
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m.client = args.Get(0).(kubernetes.Interface)
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return m.client, nil
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}
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return nil, args.Error(1)
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}
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type ByNamesTestSuite struct {
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suite.Suite
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}
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func (suite *ByNamesTestSuite) TestAllInitialized() {
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mockClientGenerator := new(MockClientGenerator)
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mockClientGenerator.On("KubeClient").Return(fake.NewSimpleClientset(), nil)
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sources, err := ByNames(mockClientGenerator, []string{"service", "ingress", "fake"}, &Config{})
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suite.NoError(err, "should not generate errors")
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suite.Len(sources, 3, "should generate all three sources")
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}
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func (suite *ByNamesTestSuite) TestOnlyFake() {
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mockClientGenerator := new(MockClientGenerator)
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mockClientGenerator.On("KubeClient").Return(fake.NewSimpleClientset(), nil)
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sources, err := ByNames(mockClientGenerator, []string{"fake"}, &Config{})
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suite.NoError(err, "should not generate errors")
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suite.Len(sources, 1, "should generate all three sources")
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suite.Nil(mockClientGenerator.client, "client should not be created")
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}
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func (suite *ByNamesTestSuite) TestSourceNotFound() {
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mockClientGenerator := new(MockClientGenerator)
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mockClientGenerator.On("KubeClient").Return(fake.NewSimpleClientset(), nil)
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sources, err := ByNames(mockClientGenerator, []string{"foo"}, &Config{})
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suite.Equal(err, ErrSourceNotFound, "should return sourcen not found")
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suite.Len(sources, 0, "should not returns any source")
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}
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func (suite *ByNamesTestSuite) TestKubeClientFails() {
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mockClientGenerator := new(MockClientGenerator)
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mockClientGenerator.On("KubeClient").Return(nil, errors.New("foo"))
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_, err := ByNames(mockClientGenerator, []string{"service"}, &Config{})
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suite.Error(err, "should return an error if client cannot be created")
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_, err = ByNames(mockClientGenerator, []string{"ingress"}, &Config{})
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suite.Error(err, "should return an error if client cannot be created")
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}
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func TestByNames(t *testing.T) {
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suite.Run(t, new(ByNamesTestSuite))
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}
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