k8s.io/apiserver@v0.31.1/pkg/cel/library/library_compatibility_test.go (about) 1 /* 2 Copyright 2022 The Kubernetes Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package library 18 19 import ( 20 "testing" 21 22 "github.com/google/cel-go/cel" 23 24 "k8s.io/apimachinery/pkg/util/sets" 25 ) 26 27 func TestLibraryCompatibility(t *testing.T) { 28 var libs []map[string][]cel.FunctionOpt 29 libs = append(libs, authzLibraryDecls, listsLibraryDecls, regexLibraryDecls, urlLibraryDecls, quantityLibraryDecls, ipLibraryDecls, cidrLibraryDecls, formatLibraryDecls, authzSelectorsLibraryDecls) 30 functionNames := sets.New[string]() 31 for _, lib := range libs { 32 for name := range lib { 33 functionNames[name] = struct{}{} 34 } 35 } 36 37 // WARN: All library changes must follow 38 // https://github.com/kubernetes/enhancements/tree/master/keps/sig-api-machinery/2876-crd-validation-expression-language#function-library-updates 39 // and must track the functions here along with which Kubernetes version introduced them. 40 knownFunctions := sets.New( 41 // Kubernetes 1.24: 42 "isSorted", "sum", "max", "min", "indexOf", "lastIndexOf", "find", "findAll", "url", "getScheme", "getHost", "getHostname", 43 "getPort", "getEscapedPath", "getQuery", "isURL", 44 // Kubernetes <1.27>: 45 "path", "group", "serviceAccount", "resource", "subresource", "namespace", "name", "check", "allowed", "reason", 46 // Kubernetes <1.28>: 47 "errored", "error", 48 // Kubernetes <1.29>: 49 "add", "asApproximateFloat", "asInteger", "compareTo", "isGreaterThan", "isInteger", "isLessThan", "isQuantity", "quantity", "sign", "sub", 50 // Kubernetes <1.30>: 51 "ip", "family", "isUnspecified", "isLoopback", "isLinkLocalMulticast", "isLinkLocalUnicast", "isGlobalUnicast", "ip.isCanonical", "isIP", "cidr", "containsIP", "containsCIDR", "masked", "prefixLength", "isCIDR", "string", 52 // Kubernetes <1.31>: 53 "fieldSelector", "labelSelector", "validate", "format.named", 54 // Kubernetes <1.??>: 55 ) 56 57 // TODO: test celgo function lists 58 59 unexpected := functionNames.Difference(knownFunctions) 60 missing := knownFunctions.Difference(functionNames) 61 62 if len(unexpected) != 0 { 63 t.Errorf("Expected all functions in the libraries to be assigned to a kubernetes release, but found the unexpected function names: %v", unexpected) 64 } 65 if len(missing) != 0 { 66 t.Errorf("Expected all functions in the libraries to be assigned to a kubernetes release, but found the missing function names: %v", missing) 67 } 68 }