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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 types_test
import (
"encoding/json"
"net"
"github.com/containernetworking/cni/pkg/types"
current "github.com/containernetworking/cni/pkg/types/100"
. "github.com/onsi/ginkgo"
. "github.com/onsi/ginkgo/extensions/table"
. "github.com/onsi/gomega"
)
var _ = Describe("Types", func() {
Describe("ParseCIDR", func() {
DescribeTable("Parse and stringify",
func(input, expectedIP string, expectedMask int) {
ipn, err := types.ParseCIDR(input)
Expect(err).NotTo(HaveOccurred())
Expect(ipn.String()).To(Equal(input))
Expect(ipn.IP.String()).To(Equal(expectedIP))
ones, _ := ipn.Mask.Size()
Expect(ones).To(Equal(expectedMask))
},
Entry("ipv4", "1.2.3.4/24", "1.2.3.4", 24),
Entry("ipv6", "2001:db8::/32", "2001:db8::", 32),
)
It("returns an error when given invalid inputs", func() {
ipn, err := types.ParseCIDR("1.2.3/45")
Expect(ipn).To(BeNil())
Expect(err).To(MatchError("invalid CIDR address: 1.2.3/45"))
})
})
Describe("custom IPNet type", func() {
It("marshals and unmarshals to JSON as a string", func() {
ipn := types.IPNet{
IP: net.ParseIP("1.2.3.4"),
Mask: net.CIDRMask(24, 32),
}
jsonBytes, err := json.Marshal(ipn)
Expect(err).NotTo(HaveOccurred())
Expect(jsonBytes).To(MatchJSON(`"1.2.3.4/24"`))
var unmarshaled types.IPNet
Expect(json.Unmarshal(jsonBytes, &unmarshaled)).To(Succeed())
Expect(unmarshaled).To(Equal(ipn))
})
Context("when the json data is not syntactically valid", func() {
Specify("UnmarshalJSON returns an error", func() {
ipn := new(types.IPNet)
err := ipn.UnmarshalJSON([]byte("1"))
Expect(err).To(MatchError("json: cannot unmarshal number into Go value of type string"))
})
})
Context("when the json data is not semantically valid", func() {
Specify("UnmarshalJSON returns an error", func() {
ipn := new(types.IPNet)
err := ipn.UnmarshalJSON([]byte(`"1.2.3.4/99"`))
Expect(err).To(MatchError("invalid CIDR address: 1.2.3.4/99"))
})
})
})
Describe("custom Route type", func() {
var example types.Route
BeforeEach(func() {
example = types.Route{
Dst: net.IPNet{
IP: net.ParseIP("1.2.3.0"),
Mask: net.CIDRMask(24, 32),
},
GW: net.ParseIP("1.2.3.1"),
}
})
It("marshals and unmarshals to JSON", func() {
jsonBytes, err := json.Marshal(example)
Expect(err).NotTo(HaveOccurred())
Expect(jsonBytes).To(MatchJSON(`{ "dst": "1.2.3.0/24", "gw": "1.2.3.1" }`))
var unmarshaled types.Route
Expect(json.Unmarshal(jsonBytes, &unmarshaled)).To(Succeed())
Expect(unmarshaled).To(Equal(example))
})
Context("when the json data is not valid", func() {
Specify("UnmarshalJSON returns an error", func() {
route := new(types.Route)
err := route.UnmarshalJSON([]byte(`{ "dst": "1.2.3.0/24", "gw": "1.2.3.x" }`))
Expect(err).To(MatchError("invalid IP address: 1.2.3.x"))
})
})
It("formats as a string with a hex mask", func() {
Expect(example.String()).To(Equal(`{Dst:{IP:1.2.3.0 Mask:ffffff00} GW:1.2.3.1}`))
})
})
Describe("Error type", func() {
var example *types.Error
BeforeEach(func() {
example = &types.Error{
Code: 1234,
Msg: "some message",
Details: "some details",
}
})
Describe("Error() method (basic string)", func() {
It("returns a formatted string", func() {
Expect(example.Error()).To(Equal("some message; some details"))
})
Context("when details are not present", func() {
BeforeEach(func() {
example.Details = ""
})
It("returns only the message", func() {
Expect(example.Error()).To(Equal("some message"))
})
})
})
It("NewError method", func() {
err := types.NewError(1234, "some message", "some details")
Expect(err).To(Equal(example))
})
})
Describe("Result conversion", func() {
var result *current.Result
BeforeEach(func() {
ipv4, err := types.ParseCIDR("1.2.3.30/24")
Expect(err).NotTo(HaveOccurred())
Expect(ipv4).NotTo(BeNil())
ipv6, err := types.ParseCIDR("abcd:1234:ffff::cdde/64")
Expect(err).NotTo(HaveOccurred())
Expect(ipv6).NotTo(BeNil())
result = ¤t.Result{
CNIVersion: "1.0.0",
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: *ipv4,
Gateway: net.ParseIP("1.2.3.1"),
},
{
Interface: current.Int(0),
Address: *ipv6,
Gateway: net.ParseIP("abcd:1234:ffff::1"),
},
},
DNS: types.DNS{
Nameservers: []string{"1.2.3.4", "1::cafe"},
Domain: "acompany.com",
Search: []string{"somedomain.com", "otherdomain.net"},
Options: []string{"foo", "bar"},
},
}
})
It("can create a CNIVersion '' (0.1.0) result", func() {
newResult, err := result.GetAsVersion("")
Expect(err).NotTo(HaveOccurred())
Expect(newResult.Version()).To(Equal("0.1.0"))
})
})
})
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