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// Copyright 2022 Google LLC
//
// 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 mactest_test
import (
"errors"
"testing"
"github.com/tink-crypto/tink-go/v2/mac/internal/mactest"
)
func TestAlwaysFailingMACAlwayFails(t *testing.T) {
wantErr := errors.New("panic at the kernel")
p := &mactest.AlwaysFailingMAC{Error: wantErr}
if _, err := p.ComputeMAC([]byte("valid_data")); !errors.Is(err, wantErr) {
t.Errorf("p.ComputeMac() err = %v, want %v", err, wantErr)
}
if err := p.VerifyMAC([]byte("data"), []byte("tag")); !errors.Is(err, wantErr) {
t.Errorf("p.VerifyMac() err = %v, want %v", err, wantErr)
}
}
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