github.com/dtroyer-salad/og2/v2@v2.0.0-20240412154159-c47231610877/content/verifiers_test.go (about) 1 /* 2 Copyright The ORAS Authors. 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 */ 15 16 package content 17 18 import ( 19 "bytes" 20 "crypto/rand" 21 _ "crypto/sha256" 22 "io" 23 "reflect" 24 "testing" 25 26 "github.com/opencontainers/go-digest" 27 ) 28 29 // Copied from https://github.com/opencontainers/go-digest/blob/master/digest.go 30 31 // FromBytes digests the input and returns a Digest. 32 func FromBytes(p []byte) digest.Digest { 33 return digest.Canonical.FromBytes(p) 34 } 35 36 // Copied from https://github.com/opencontainers/go-digest/blob/master/verifiers_test.go 37 38 func TestDigestVerifier(t *testing.T) { 39 p := make([]byte, 1<<20) 40 rand.Read(p) 41 content := FromBytes(p) 42 43 verifier := content.Verifier() 44 45 io.Copy(verifier, bytes.NewReader(p)) 46 47 if !verifier.Verified() { 48 t.Fatalf("bytes not verified") 49 } 50 } 51 52 // TestVerifierUnsupportedDigest ensures that unsupported digest validation is 53 // flowing through verifier creation. 54 func TestVerifierUnsupportedDigest(t *testing.T) { 55 for _, testcase := range []struct { 56 Name string 57 Digest digest.Digest 58 Expected interface{} // expected panic target 59 }{ 60 { 61 Name: "Empty", 62 Digest: "", 63 Expected: "no ':' separator in digest \"\"", 64 }, 65 { 66 Name: "EmptyAlg", 67 Digest: ":", 68 Expected: "empty digest algorithm, validate before calling Algorithm.Hash()", 69 }, 70 { 71 Name: "Unsupported", 72 Digest: digest.Digest("bean:0123456789abcdef"), 73 Expected: "bean not available (make sure it is imported)", 74 }, 75 { 76 Name: "Garbage", 77 Digest: digest.Digest("sha256-garbage:pure"), 78 Expected: "sha256-garbage not available (make sure it is imported)", 79 }, 80 } { 81 t.Run(testcase.Name, func(t *testing.T) { 82 expected := testcase.Expected 83 defer func() { 84 recovered := recover() 85 if !reflect.DeepEqual(recovered, expected) { 86 t.Fatalf("unexpected recover: %v != %v", recovered, expected) 87 } 88 }() 89 90 _ = testcase.Digest.Verifier() 91 }) 92 } 93 }