repo_description: Container Network Interface - networking for Linux containers
repo_topics: containers docker kubernetes networking
code: // Copyright 2016 CNI 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 version_test
  
  import (
  	. "github.com/onsi/ginkgo/v2"
  	. "github.com/onsi/gomega"
  
  	"github.com/containernetworking/cni/pkg/version"
  )
  
  var _ = Describe("Reconcile versions of net config with versions supported by plugins", func() {
  	var (
  		reconciler *version.Reconciler
  		pluginInfo version.PluginInfo
  	)
  
  	BeforeEach(func() {
  		reconciler = &version.Reconciler{}
  		pluginInfo = version.PluginSupports("1.2.3", "4.3.2")
  	})
  
  	It("succeeds if the config version is supported by the plugin", func() {
  		err := reconciler.Check("4.3.2", pluginInfo)
  		Expect(err).NotTo(HaveOccurred())
  	})
  
  	Context("when the config version is not supported by the plugin", func() {
  		It("returns a helpful error", func() {
  			err := reconciler.Check("0.1.0", pluginInfo)
  
  			Expect(err).To(Equal(&version.ErrorIncompatible{
  				Config:    "0.1.0",
  				Supported: []string{"1.2.3", "4.3.2"},
  			}))
  
  			Expect(err.Error()).To(Equal(`incompatible CNI versions: config is "0.1.0", plugin supports ["1.2.3" "4.3.2"]`))
  		})
  	})
  })
  