/* Copyright 2018 The Kubernetes 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 config import ( "bytes" "io/ioutil" "os" "path/filepath" "reflect" "runtime" "testing" "github.com/pmezard/go-difflib/difflib" "k8s.io/apimachinery/pkg/runtime/schema" "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm" kubeadmapiv1beta1 "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm/v1beta1" "k8s.io/kubernetes/cmd/kubeadm/app/constants" ) const ( master_v1alpha3YAML = "testdata/conversion/master/v1alpha3.yaml" master_v1alpha3YAMLNonLinux = "testdata/conversion/master/v1alpha3_non_linux.yaml" master_v1beta1YAML = "testdata/conversion/master/v1beta1.yaml" master_v1beta1YAMLNonLinux = "testdata/conversion/master/v1beta1_non_linux.yaml" master_internalYAML = "testdata/conversion/master/internal.yaml" master_internalYAMLNonLinux = "testdata/conversion/master/internal_non_linux.yaml" master_incompleteYAML = "testdata/defaulting/master/incomplete.yaml" master_defaultedYAML = "testdata/defaulting/master/defaulted.yaml" master_defaultedYAMLNonLinux = "testdata/defaulting/master/defaulted_non_linux.yaml" master_invalidYAML = "testdata/validation/invalid_mastercfg.yaml" ) func diff(expected, actual []byte) string { // Write out the diff var diffBytes bytes.Buffer difflib.WriteUnifiedDiff(&diffBytes, difflib.UnifiedDiff{ A: difflib.SplitLines(string(expected)), B: difflib.SplitLines(string(actual)), FromFile: "expected", ToFile: "actual", Context: 3, }) return diffBytes.String() } func TestLoadInitConfigurationFromFile(t *testing.T) { // Create temp folder for the test case tmpdir, err := ioutil.TempDir("", "") if err != nil { t.Fatalf("Couldn't create tmpdir") } defer os.RemoveAll(tmpdir) // cfgFiles is in cluster_test.go var tests = []struct { name string fileContents []byte }{ { name: "v1beta1.partial1", fileContents: cfgFiles["InitConfiguration_v1beta1"], }, { name: "v1beta1.partial2", fileContents: cfgFiles["ClusterConfiguration_v1beta1"], }, { name: "v1beta1.full", fileContents: bytes.Join([][]byte{ cfgFiles["InitConfiguration_v1beta1"], cfgFiles["ClusterConfiguration_v1beta1"], cfgFiles["Kube-proxy_componentconfig"], cfgFiles["Kubelet_componentconfig"], }, []byte(constants.YAMLDocumentSeparator)), }, { name: "v1alpha3.partial1", fileContents: cfgFiles["InitConfiguration_v1alpha3"], }, { name: "v1alpha3.partial2", fileContents: cfgFiles["ClusterConfiguration_v1alpha3"], }, { name: "v1alpha3.full", fileContents: bytes.Join([][]byte{ cfgFiles["InitConfiguration_v1alpha3"], cfgFiles["ClusterConfiguration_v1alpha3"], cfgFiles["Kube-proxy_componentconfig"], cfgFiles["Kubelet_componentconfig"], }, []byte(constants.YAMLDocumentSeparator)), }, } for _, rt := range tests { t.Run(rt.name, func(t2 *testing.T) { cfgPath := filepath.Join(tmpdir, rt.name) err := ioutil.WriteFile(cfgPath, rt.fileContents, 0644) if err != nil { t.Errorf("Couldn't create file") return } obj, err := LoadInitConfigurationFromFile(cfgPath) if err != nil { t.Errorf("Error reading file: %v", err) return } if obj == nil { t.Errorf("Unexpected nil return value") } }) } } func TestInitConfigurationMarshallingFromFile(t *testing.T) { master_v1alpha3YAMLAbstracted := master_v1alpha3YAML master_v1beta1YAMLAbstracted := master_v1beta1YAML master_internalYAMLAbstracted := master_internalYAML master_defaultedYAMLAbstracted := master_defaultedYAML if runtime.GOOS != "linux" { master_v1alpha3YAMLAbstracted = master_v1alpha3YAMLNonLinux master_v1beta1YAMLAbstracted = master_v1beta1YAMLNonLinux master_internalYAMLAbstracted = master_internalYAMLNonLinux master_defaultedYAMLAbstracted = master_defaultedYAMLNonLinux } var tests = []struct { name, in, out string groupVersion schema.GroupVersion expectedErr bool }{ // These tests are reading one file, loading it using LoadInitConfigurationFromFile that all of kubeadm is using for unmarshal of our API types, // and then marshals the internal object to the expected groupVersion { // v1alpha3 -> internal name: "v1alpha3ToInternal", in: master_v1alpha3YAMLAbstracted, out: master_internalYAMLAbstracted, groupVersion: kubeadm.SchemeGroupVersion, }, { // v1beta1 -> internal name: "v1beta1ToInternal", in: master_v1beta1YAMLAbstracted, out: master_internalYAMLAbstracted, groupVersion: kubeadm.SchemeGroupVersion, }, { // v1alpha3 -> internal -> v1beta1 name: "v1alpha3Tov1beta1", in: master_v1alpha3YAMLAbstracted, out: master_v1beta1YAMLAbstracted, groupVersion: kubeadmapiv1beta1.SchemeGroupVersion, }, { // v1beta1 -> internal -> v1beta1 name: "v1beta1Tov1beta1", in: master_v1beta1YAMLAbstracted, out: master_v1beta1YAMLAbstracted, groupVersion: kubeadmapiv1beta1.SchemeGroupVersion, }, // These tests are reading one file that has only a subset of the fields populated, loading it using LoadInitConfigurationFromFile, // and then marshals the internal object to the expected groupVersion { // v1beta1 -> default -> validate -> internal -> v1beta1 name: "incompleteYAMLToDefaultedv1beta1", in: master_incompleteYAML, out: master_defaultedYAMLAbstracted, groupVersion: kubeadmapiv1beta1.SchemeGroupVersion, }, { // v1alpha3 -> validation should fail name: "invalidYAMLShouldFail", in: master_invalidYAML, expectedErr: true, }, } for _, rt := range tests { t.Run(rt.name, func(t2 *testing.T) { internalcfg, err := LoadInitConfigurationFromFile(rt.in) if err != nil { if rt.expectedErr { return } t2.Fatalf("couldn't unmarshal test data: %v", err) } actual, err := MarshalInitConfigurationToBytes(internalcfg, rt.groupVersion) if err != nil { t2.Fatalf("couldn't marshal internal object: %v", err) } expected, err := ioutil.ReadFile(rt.out) if err != nil { t2.Fatalf("couldn't read test data: %v", err) } if !bytes.Equal(expected, actual) { t2.Errorf("the expected and actual output differs.\n\tin: %s\n\tout: %s\n\tgroupversion: %s\n\tdiff: \n%s\n", rt.in, rt.out, rt.groupVersion.String(), diff(expected, actual)) } }) } } func TestConsistentOrderByteSlice(t *testing.T) { var ( aKind = "Akind" aFile = []byte(` kind: Akind apiVersion: foo.k8s.io/v1 `) aaKind = "Aakind" aaFile = []byte(` kind: Aakind apiVersion: foo.k8s.io/v1 `) abKind = "Abkind" abFile = []byte(` kind: Abkind apiVersion: foo.k8s.io/v1 `) ) var tests = []struct { name string in map[string][]byte expected [][]byte }{ { name: "a_aa_ab", in: map[string][]byte{ aKind: aFile, aaKind: aaFile, abKind: abFile, }, expected: [][]byte{aaFile, abFile, aFile}, }, { name: "a_ab_aa", in: map[string][]byte{ aKind: aFile, abKind: abFile, aaKind: aaFile, }, expected: [][]byte{aaFile, abFile, aFile}, }, { name: "aa_a_ab", in: map[string][]byte{ aaKind: aaFile, aKind: aFile, abKind: abFile, }, expected: [][]byte{aaFile, abFile, aFile}, }, { name: "aa_ab_a", in: map[string][]byte{ aaKind: aaFile, abKind: abFile, aKind: aFile, }, expected: [][]byte{aaFile, abFile, aFile}, }, { name: "ab_a_aa", in: map[string][]byte{ abKind: abFile, aKind: aFile, aaKind: aaFile, }, expected: [][]byte{aaFile, abFile, aFile}, }, { name: "ab_aa_a", in: map[string][]byte{ abKind: abFile, aaKind: aaFile, aKind: aFile, }, expected: [][]byte{aaFile, abFile, aFile}, }, } for _, rt := range tests { t.Run(rt.name, func(t2 *testing.T) { actual := consistentOrderByteSlice(rt.in) if !reflect.DeepEqual(rt.expected, actual) { t2.Errorf("the expected and actual output differs.\n\texpected: %s\n\tout: %s\n", rt.expected, actual) } }) } }