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// Copyright 2017 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 invoke_test
import (
"os"
"github.com/containernetworking/cni/pkg/invoke"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("CNIArgs AsEnv", func() {
Describe("Args AsEnv", func() {
BeforeEach(func() {
os.Setenv("CNI_COMMAND", "DEL")
os.Setenv("CNI_IFNAME", "eth0")
os.Setenv("CNI_CONTAINERID", "id")
os.Setenv("CNI_ARGS", "args")
os.Setenv("CNI_NETNS", "testns")
os.Setenv("CNI_PATH", "testpath")
})
It("places the CNI environment variables in the end to be prepended", func() {
args := invoke.Args{
Command: "ADD",
ContainerID: "some-container-id",
NetNS: "/some/netns/path",
PluginArgs: [][2]string{
{"KEY1", "VALUE1"},
{"KEY2", "VALUE2"},
},
IfName: "eth7",
Path: "/some/cni/path",
}
latentEnvs := os.Environ()
numLatentEnvs := len(latentEnvs)
cniEnvs := args.AsEnv()
Expect(len(cniEnvs)).To(Equal(numLatentEnvs))
Expect(inStringSlice("CNI_COMMAND=ADD", cniEnvs)).To(Equal(true))
Expect(inStringSlice("CNI_IFNAME=eth7", cniEnvs)).To(Equal(true))
Expect(inStringSlice("CNI_CONTAINERID=some-container-id", cniEnvs)).To(Equal(true))
Expect(inStringSlice("CNI_NETNS=/some/netns/path", cniEnvs)).To(Equal(true))
Expect(inStringSlice("CNI_ARGS=KEY1=VALUE1;KEY2=VALUE2", cniEnvs)).To(Equal(true))
Expect(inStringSlice("CNI_PATH=/some/cni/path", cniEnvs)).To(Equal(true))
Expect(inStringSlice("CNI_COMMAND=DEL", cniEnvs)).To(Equal(false))
Expect(inStringSlice("CNI_IFNAME=eth0", cniEnvs)).To(Equal(false))
Expect(inStringSlice("CNI_CONTAINERID=id", cniEnvs)).To(Equal(false))
Expect(inStringSlice("CNI_NETNS=testns", cniEnvs)).To(Equal(false))
Expect(inStringSlice("CNI_ARGS=args", cniEnvs)).To(Equal(false))
Expect(inStringSlice("CNI_PATH=testpath", cniEnvs)).To(Equal(false))
})
AfterEach(func() {
os.Unsetenv("CNI_COMMAND")
os.Unsetenv("CNI_IFNAME")
os.Unsetenv("CNI_CONTAINERID")
os.Unsetenv("CNI_ARGS")
os.Unsetenv("CNI_NETNS")
os.Unsetenv("CNI_PATH")
})
})
Describe("DelegateArgs AsEnv", func() {
BeforeEach(func() {
os.Unsetenv("CNI_COMMAND")
})
It("override CNI_COMMAND if it already exists in environment variables", func() {
os.Setenv("CNI_COMMAND", "DEL")
delegateArgs := invoke.DelegateArgs{
Command: "ADD",
}
latentEnvs := os.Environ()
numLatentEnvs := len(latentEnvs)
cniEnvs := delegateArgs.AsEnv()
Expect(len(cniEnvs)).To(Equal(numLatentEnvs))
Expect(inStringSlice("CNI_COMMAND=ADD", cniEnvs)).To(Equal(true))
Expect(inStringSlice("CNI_COMMAND=DEL", cniEnvs)).To(Equal(false))
})
It("append CNI_COMMAND if it does not exist in environment variables", func() {
delegateArgs := invoke.DelegateArgs{
Command: "ADD",
}
latentEnvs := os.Environ()
numLatentEnvs := len(latentEnvs)
cniEnvs := delegateArgs.AsEnv()
Expect(len(cniEnvs)).To(Equal(numLatentEnvs + 1))
Expect(inStringSlice("CNI_COMMAND=ADD", cniEnvs)).To(Equal(true))
})
AfterEach(func() {
os.Unsetenv("CNI_COMMAND")
})
})
Describe("inherited AsEnv", func() {
It("return nil string slice if we call AsEnv of inherited", func() {
inheritedArgs := invoke.ArgsFromEnv()
var nilSlice []string = nil
Expect(inheritedArgs.AsEnv()).To(Equal(nilSlice))
})
})
})
func inStringSlice(in string, slice []string) bool {
for _, s := range slice {
if in == s {
return true
}
}
return false
}
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