github.com/john-lin/cni@v0.6.0-rc1.0.20170712150331-b69e640cc0e2/pkg/version/conf_test.go (about) 1 // Copyright 2016 CNI authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package version_test 16 17 import ( 18 "github.com/containernetworking/cni/pkg/version" 19 20 . "github.com/onsi/ginkgo" 21 . "github.com/onsi/gomega" 22 ) 23 24 var _ = Describe("Decoding the version of network config", func() { 25 var ( 26 decoder *version.ConfigDecoder 27 configBytes []byte 28 ) 29 30 BeforeEach(func() { 31 decoder = &version.ConfigDecoder{} 32 configBytes = []byte(`{ "cniVersion": "4.3.2" }`) 33 }) 34 35 Context("when the version is explict", func() { 36 It("returns the version", func() { 37 version, err := decoder.Decode(configBytes) 38 Expect(err).NotTo(HaveOccurred()) 39 40 Expect(version).To(Equal("4.3.2")) 41 }) 42 }) 43 44 Context("when the version is not present in the config", func() { 45 BeforeEach(func() { 46 configBytes = []byte(`{ "not-a-version-field": "foo" }`) 47 }) 48 49 It("assumes the config is version 0.1.0", func() { 50 version, err := decoder.Decode(configBytes) 51 Expect(err).NotTo(HaveOccurred()) 52 53 Expect(version).To(Equal("0.1.0")) 54 }) 55 }) 56 57 Context("when the config data is malformed", func() { 58 BeforeEach(func() { 59 configBytes = []byte(`{{{`) 60 }) 61 62 It("returns a useful error", func() { 63 _, err := decoder.Decode(configBytes) 64 Expect(err).To(MatchError(HavePrefix( 65 "decoding version from network config: invalid character", 66 ))) 67 }) 68 }) 69 })