cloudinit/datasource/metadata/ec2/metadata_test.go

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// Copyright 2015 CoreOS, Inc.
//
// 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 ec2
import (
"fmt"
"net"
"reflect"
"testing"
"github.com/coreos/coreos-cloudinit/datasource"
"github.com/coreos/coreos-cloudinit/datasource/metadata"
"github.com/coreos/coreos-cloudinit/datasource/metadata/test"
"github.com/coreos/coreos-cloudinit/pkg"
)
func TestType(t *testing.T) {
want := "ec2-metadata-service"
if kind := (metadataService{}).Type(); kind != want {
t.Fatalf("bad type: want %q, got %q", want, kind)
}
}
func TestFetchAttributes(t *testing.T) {
for _, s := range []struct {
resources map[string]string
err error
tests []struct {
path string
val []string
}
}{
{
resources: map[string]string{
"/": "a\nb\nc/",
"/c/": "d\ne/",
"/c/e/": "f",
"/a": "1",
"/b": "2",
"/c/d": "3",
"/c/e/f": "4",
},
tests: []struct {
path string
val []string
}{
{"/", []string{"a", "b", "c/"}},
{"/b", []string{"2"}},
{"/c/d", []string{"3"}},
{"/c/e/", []string{"f"}},
},
},
{
err: fmt.Errorf("test error"),
tests: []struct {
path string
val []string
}{
{"", nil},
},
},
} {
service := metadataService{metadata.MetadataService{
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Client: &test.HttpClient{Resources: s.resources, Err: s.err},
}}
for _, tt := range s.tests {
attrs, err := service.fetchAttributes(tt.path)
if err != s.err {
t.Fatalf("bad error for %q (%q): want %q, got %q", tt.path, s.resources, s.err, err)
}
if !reflect.DeepEqual(attrs, tt.val) {
t.Fatalf("bad fetch for %q (%q): want %q, got %q", tt.path, s.resources, tt.val, attrs)
}
}
}
}
func TestFetchAttribute(t *testing.T) {
for _, s := range []struct {
resources map[string]string
err error
tests []struct {
path string
val string
}
}{
{
resources: map[string]string{
"/": "a\nb\nc/",
"/c/": "d\ne/",
"/c/e/": "f",
"/a": "1",
"/b": "2",
"/c/d": "3",
"/c/e/f": "4",
},
tests: []struct {
path string
val string
}{
{"/a", "1"},
{"/b", "2"},
{"/c/d", "3"},
{"/c/e/f", "4"},
},
},
{
err: fmt.Errorf("test error"),
tests: []struct {
path string
val string
}{
{"", ""},
},
},
} {
service := metadataService{metadata.MetadataService{
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Client: &test.HttpClient{Resources: s.resources, Err: s.err},
}}
for _, tt := range s.tests {
attr, err := service.fetchAttribute(tt.path)
if err != s.err {
t.Fatalf("bad error for %q (%q): want %q, got %q", tt.path, s.resources, s.err, err)
}
if attr != tt.val {
t.Fatalf("bad fetch for %q (%q): want %q, got %q", tt.path, s.resources, tt.val, attr)
}
}
}
}
func TestFetchMetadata(t *testing.T) {
for _, tt := range []struct {
root string
metadataPath string
resources map[string]string
expect datasource.Metadata
clientErr error
expectErr error
}{
{
root: "/",
metadataPath: "2009-04-04/meta-data",
resources: map[string]string{
"/2009-04-04/meta-data/public-keys": "bad\n",
},
expectErr: fmt.Errorf("malformed public key: \"bad\""),
},
{
root: "/",
metadataPath: "2009-04-04/meta-data",
resources: map[string]string{
"/2009-04-04/meta-data/hostname": "host",
"/2009-04-04/meta-data/local-ipv4": "1.2.3.4",
"/2009-04-04/meta-data/public-ipv4": "5.6.7.8",
"/2009-04-04/meta-data/public-keys": "0=test1\n",
"/2009-04-04/meta-data/public-keys/0": "openssh-key",
"/2009-04-04/meta-data/public-keys/0/openssh-key": "key",
"/2009-04-04/meta-data/network_config/content_path": "path",
},
expect: datasource.Metadata{
Hostname: "host",
PrivateIPv4: net.ParseIP("1.2.3.4"),
PublicIPv4: net.ParseIP("5.6.7.8"),
SSHPublicKeys: map[string]string{"test1": "key"},
NetworkConfigPath: "path",
},
},
{
root: "/",
metadataPath: "2009-04-04/meta-data",
resources: map[string]string{
"/2009-04-04/meta-data/hostname": "host domain another_domain",
"/2009-04-04/meta-data/local-ipv4": "1.2.3.4",
"/2009-04-04/meta-data/public-ipv4": "5.6.7.8",
"/2009-04-04/meta-data/public-keys": "0=test1\n",
"/2009-04-04/meta-data/public-keys/0": "openssh-key",
"/2009-04-04/meta-data/public-keys/0/openssh-key": "key",
"/2009-04-04/meta-data/network_config/content_path": "path",
},
expect: datasource.Metadata{
Hostname: "host",
PrivateIPv4: net.ParseIP("1.2.3.4"),
PublicIPv4: net.ParseIP("5.6.7.8"),
SSHPublicKeys: map[string]string{"test1": "key"},
NetworkConfigPath: "path",
},
},
{
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clientErr: pkg.ErrTimeout{Err: fmt.Errorf("test error")},
expectErr: pkg.ErrTimeout{Err: fmt.Errorf("test error")},
},
} {
service := &metadataService{metadata.MetadataService{
Root: tt.root,
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Client: &test.HttpClient{Resources: tt.resources, Err: tt.clientErr},
MetadataPath: tt.metadataPath,
}}
metadata, err := service.FetchMetadata()
if Error(err) != Error(tt.expectErr) {
t.Fatalf("bad error (%q): want %q, got %q", tt.resources, tt.expectErr, err)
}
if !reflect.DeepEqual(tt.expect, metadata) {
t.Fatalf("bad fetch (%q): want %#v, got %#v", tt.resources, tt.expect, metadata)
}
}
}
func Error(err error) string {
if err != nil {
return err.Error()
}
return ""
}