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// Copyright 2020 The gVisor 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 testbench
import "testing"
func TestLayerMatch(t *testing.T) {
var nilPayload *Payload
noPayload := &Payload{}
emptyPayload := &Payload{Bytes: []byte{}}
fullPayload := &Payload{Bytes: []byte{1, 2, 3}}
emptyTCP := &TCP{SrcPort: Uint16(1234), LayerBase: LayerBase{nextLayer: emptyPayload}}
fullTCP := &TCP{SrcPort: Uint16(1234), LayerBase: LayerBase{nextLayer: fullPayload}}
for _, tt := range []struct {
a, b Layer
want bool
}{
{nilPayload, nilPayload, true},
{nilPayload, noPayload, true},
{nilPayload, emptyPayload, true},
{nilPayload, fullPayload, true},
{noPayload, noPayload, true},
{noPayload, emptyPayload, true},
{noPayload, fullPayload, true},
{emptyPayload, emptyPayload, true},
{emptyPayload, fullPayload, false},
{fullPayload, fullPayload, true},
{emptyTCP, fullTCP, true},
} {
if got := tt.a.match(tt.b); got != tt.want {
t.Errorf("%s.match(%s) = %t, want %t", tt.a, tt.b, got, tt.want)
}
if got := tt.b.match(tt.a); got != tt.want {
t.Errorf("%s.match(%s) = %t, want %t", tt.b, tt.a, got, tt.want)
}
}
}
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