80 lines
2 KiB
Go
80 lines
2 KiB
Go
// Copyright 2017 Docker, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package digest
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import (
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"bytes"
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"crypto/rand"
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"io"
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"reflect"
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"testing"
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)
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func TestDigestVerifier(t *testing.T) {
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p := make([]byte, 1<<20)
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rand.Read(p)
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digest := FromBytes(p)
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verifier := digest.Verifier()
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io.Copy(verifier, bytes.NewReader(p))
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if !verifier.Verified() {
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t.Fatalf("bytes not verified")
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}
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}
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// TestVerifierUnsupportedDigest ensures that unsupported digest validation is
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// flowing through verifier creation.
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func TestVerifierUnsupportedDigest(t *testing.T) {
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for _, testcase := range []struct {
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Name string
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Digest Digest
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Expected interface{} // expected panic target
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}{
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{
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Name: "Empty",
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Digest: "",
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Expected: "no ':' separator in digest \"\"",
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},
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{
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Name: "EmptyAlg",
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Digest: ":",
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Expected: "empty digest algorithm, validate before calling Algorithm.Hash()",
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},
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{
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Name: "Unsupported",
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Digest: Digest("bean:0123456789abcdef"),
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Expected: "bean not available (make sure it is imported)",
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},
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{
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Name: "Garbage",
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Digest: Digest("sha256-garbage:pure"),
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Expected: "sha256-garbage not available (make sure it is imported)",
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},
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} {
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t.Run(testcase.Name, func(t *testing.T) {
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expected := testcase.Expected
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defer func() {
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recovered := recover()
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if !reflect.DeepEqual(recovered, expected) {
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t.Fatalf("unexpected recover: %v != %v", recovered, expected)
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}
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}()
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_ = testcase.Digest.Verifier()
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})
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}
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}
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