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matchers.go
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matchers.go
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// Copyright 2019 Anapaya Systems
//
// 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.
// File matchers contains matchers for gomock.
package matchers
import (
"bytes"
"context"
"fmt"
"reflect"
"sort"
"github.com/golang/mock/gomock"
"github.com/scionproto/scion/go/lib/addr"
"github.com/scionproto/scion/go/lib/ctrl/ack"
"github.com/scionproto/scion/go/lib/ctrl/path_mgmt"
"github.com/scionproto/scion/go/lib/pathdb/query"
"github.com/scionproto/scion/go/lib/snet"
)
var _ gomock.Matcher = (*addrIAMatcher)(nil)
type addrIAMatcher struct {
ia addr.IA
}
// IsSnetAddrWithIA returns a matcher for a snet.Addr with the given IA.
func IsSnetAddrWithIA(ia addr.IA) gomock.Matcher {
return &addrIAMatcher{ia: ia}
}
func (m *addrIAMatcher) Matches(x interface{}) bool {
sAddr, ok := x.(*snet.Addr)
if !ok {
return false
}
return sAddr.IA.Equal(m.ia)
}
func (m *addrIAMatcher) String() string {
return fmt.Sprintf("Matching addr with IA %v", m.ia)
}
var _ gomock.Matcher = (*AckMsg)(nil)
// AckMsg matches ack messages.
type AckMsg struct {
Ack ack.Ack
}
// Matches returns whether the matcher matches x.
func (m *AckMsg) Matches(x interface{}) bool {
ack, ok := x.(*ack.Ack)
if !ok {
return false
}
return ack.Err == m.Ack.Err && ack.ErrDesc == m.Ack.ErrDesc
}
func (m *AckMsg) String() string {
return fmt.Sprintf("is ack msg: %v", m.Ack)
}
var _ gomock.Matcher = (*SignedRevs)(nil)
// SignedRevs matches signed revocations against revinfos and checks if they
// are verifiable.
type SignedRevs struct {
Verifier path_mgmt.Verifier
MatchRevs []path_mgmt.RevInfo
}
// Matches returns whether the matcher matches x.
func (m *SignedRevs) Matches(x interface{}) bool {
sRevs, ok := x.([]*path_mgmt.SignedRevInfo)
if !ok {
return false
}
revInfos := make(map[path_mgmt.RevInfo]*path_mgmt.RevInfo)
for _, rev := range sRevs {
revInfo, err := rev.VerifiedRevInfo(context.Background(), m.Verifier)
if err != nil {
return false
}
key := *revInfo
key.RawTimestamp, key.RawTTL = 0, 0
revInfos[key] = revInfo
}
for _, expectedRev := range m.MatchRevs {
expectedRev.RawTimestamp, expectedRev.RawTTL = 0, 0
rev, ok := revInfos[expectedRev]
if !ok {
return false
}
if rev.Active() != nil {
return false
}
delete(revInfos, expectedRev)
}
return len(revInfos) == 0
}
func (m *SignedRevs) String() string {
return fmt.Sprintf("is slice of signed revocations matching %v and verifiable", m.MatchRevs)
}
// EqParams returns a matcher for the given query parameters.
func EqParams(query *query.Params) *QueryParams {
return &QueryParams{query: query}
}
// QueryParams is a matcher for query parameters.
type QueryParams struct {
query *query.Params
}
// Matches returns whether x matches the defined query parameter ignoring the
// order of the slices.
func (m *QueryParams) Matches(x interface{}) bool {
query, ok := x.(*query.Params)
if !ok {
return false
}
sort.Slice(query.SegIDs, func(i, j int) bool {
return bytes.Compare(query.SegIDs[i], query.SegIDs[j]) < 0
})
sort.Slice(query.SegTypes, func(i, j int) bool {
return query.SegTypes[i] < query.SegTypes[j]
})
sort.Slice(query.HpCfgIDs, func(i, j int) bool {
return (query.HpCfgIDs[i].IA.IAInt() < query.HpCfgIDs[j].IA.IAInt()) ||
(query.HpCfgIDs[i].IA.IAInt() == query.HpCfgIDs[j].IA.IAInt() &&
query.HpCfgIDs[i].ID < query.HpCfgIDs[j].ID)
})
sort.Slice(query.Intfs, func(i, j int) bool {
return (query.Intfs[i].IA.IAInt() < query.Intfs[j].IA.IAInt()) ||
(query.Intfs[i].IA.IAInt() == query.Intfs[j].IA.IAInt() &&
query.Intfs[i].IfID < query.Intfs[j].IfID)
})
sort.Slice(query.StartsAt, func(i, j int) bool {
return query.StartsAt[i].IAInt() < query.StartsAt[j].IAInt()
})
sort.Slice(query.EndsAt, func(i, j int) bool {
return query.EndsAt[i].IAInt() < query.EndsAt[j].IAInt()
})
return reflect.DeepEqual(m.query, query)
}
func (m *QueryParams) String() string {
return fmt.Sprintf("is query.Params = %v", m.query)
}
// EqHPCfgIDs returns a matcher for the given slice of HPCfgIDs.
func EqHPCfgIDs(ids []*query.HPCfgID) *QueryHPCfgIDs {
return &QueryHPCfgIDs{ids: ids}
}
// QueryHPCfgIDs is a matcher for HPCfgIDs.
type QueryHPCfgIDs struct {
ids []*query.HPCfgID
}
// Matches returns whether x matches the defined HPCfgIDs ignoring the
// order of the slice elements.
func (m *QueryHPCfgIDs) Matches(x interface{}) bool {
ids, ok := x.([]*query.HPCfgID)
if !ok {
return false
}
sort.Slice(ids, func(i, j int) bool {
return (ids[i].IA.IAInt() < ids[j].IA.IAInt()) ||
(ids[i].IA.IAInt() == ids[j].IA.IAInt() &&
ids[i].ID < ids[j].ID)
})
return reflect.DeepEqual(m.ids, ids)
}
func (m *QueryHPCfgIDs) String() string {
return fmt.Sprintf("is []*query.HPCfgID = %v", m.ids)
}