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// Copyright 2018 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 (
"encoding/json"
"net"
"reflect"
"github.com/containernetworking/cni/pkg/types"
current "github.com/containernetworking/cni/pkg/types/100"
"github.com/containernetworking/cni/pkg/version"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("Version operations", func() {
It("computes a list of versions correctly", func() {
actual := version.VersionsStartingFrom("0.3.1")
Expect(actual.SupportedVersions()).To(Equal([]string{"0.3.1", "0.4.0", "1.0.0"}))
})
Context("when a prevResult is available", func() {
It("parses the prevResult", func() {
rawBytes := []byte(`{
"cniVersion": "1.0.0",
"interfaces": [
{
"name": "eth0",
"mac": "00:11:22:33:44:55",
"sandbox": "/proc/3553/ns/net"
}
],
"ips": [
{
"version": "4",
"interface": 0,
"address": "1.2.3.30/24",
"gateway": "1.2.3.1"
}
]
}`)
var raw map[string]interface{}
err := json.Unmarshal(rawBytes, &raw)
Expect(err).NotTo(HaveOccurred())
conf := &types.NetConf{
CNIVersion: "1.0.0",
Name: "foobar",
Type: "baz",
RawPrevResult: raw,
}
err = version.ParsePrevResult(conf)
Expect(err).NotTo(HaveOccurred())
expectedResult := ¤t.Result{
CNIVersion: current.ImplementedSpecVersion,
Interfaces: []*current.Interface{
{
Name: "eth0",
Mac: "00:11:22:33:44:55",
Sandbox: "/proc/3553/ns/net",
},
},
IPs: []*current.IPConfig{
{
Interface: current.Int(0),
Address: net.IPNet{
IP: net.ParseIP("1.2.3.30"),
Mask: net.IPv4Mask(255, 255, 255, 0),
},
Gateway: net.ParseIP("1.2.3.1"),
},
},
}
Expect(reflect.DeepEqual(conf.PrevResult, expectedResult)).To(BeTrue())
})
It("fails if the prevResult version is unknown", func() {
conf := &types.NetConf{
CNIVersion: current.ImplementedSpecVersion,
Name: "foobar",
Type: "baz",
RawPrevResult: map[string]interface{}{
"cniVersion": "5678.456",
},
}
err := version.ParsePrevResult(conf)
Expect(err).To(MatchError("could not parse prevResult: result type supports [1.0.0] but unmarshalled CNIVersion is \"5678.456\""))
})
It("fails if the prevResult version does not match the prevResult version", func() {
conf := &types.NetConf{
CNIVersion: current.ImplementedSpecVersion,
Name: "foobar",
Type: "baz",
RawPrevResult: map[string]interface{}{
"cniVersion": "0.2.0",
"ip4": map[string]interface{}{
"ip": "1.2.3.30/24",
"gateway": "1.2.3.1",
},
},
}
err := version.ParsePrevResult(conf)
Expect(err).To(MatchError("could not parse prevResult: result type supports [1.0.0] but unmarshalled CNIVersion is \"0.2.0\""))
})
})
Context("when a prevResult is not available", func() {
It("does not fail", func() {
conf := &types.NetConf{
CNIVersion: current.ImplementedSpecVersion,
Name: "foobar",
Type: "baz",
}
err := version.ParsePrevResult(conf)
Expect(err).NotTo(HaveOccurred())
Expect(conf.PrevResult).To(BeNil())
})
})
})
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