| // Copyright 2017 Docker, Inc. |
| // |
| // 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 |
| // |
| // https://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 digest |
| |
| import ( |
| "bytes" |
| "crypto/rand" |
| "io" |
| "reflect" |
| "testing" |
| ) |
| |
| func TestDigestVerifier(t *testing.T) { |
| p := make([]byte, 1<<20) |
| rand.Read(p) |
| digest := FromBytes(p) |
| |
| verifier := digest.Verifier() |
| |
| io.Copy(verifier, bytes.NewReader(p)) |
| |
| if !verifier.Verified() { |
| t.Fatalf("bytes not verified") |
| } |
| } |
| |
| // TestVerifierUnsupportedDigest ensures that unsupported digest validation is |
| // flowing through verifier creation. |
| func TestVerifierUnsupportedDigest(t *testing.T) { |
| for _, testcase := range []struct { |
| Name string |
| Digest Digest |
| Expected interface{} // expected panic target |
| }{ |
| { |
| Name: "Empty", |
| Digest: "", |
| Expected: "no ':' separator in digest \"\"", |
| }, |
| { |
| Name: "EmptyAlg", |
| Digest: ":", |
| Expected: "empty digest algorithm, validate before calling Algorithm.Hash()", |
| }, |
| { |
| Name: "Unsupported", |
| Digest: Digest("bean:0123456789abcdef"), |
| Expected: "bean not available (make sure it is imported)", |
| }, |
| { |
| Name: "Garbage", |
| Digest: Digest("sha256-garbage:pure"), |
| Expected: "sha256-garbage not available (make sure it is imported)", |
| }, |
| } { |
| t.Run(testcase.Name, func(t *testing.T) { |
| expected := testcase.Expected |
| defer func() { |
| recovered := recover() |
| if !reflect.DeepEqual(recovered, expected) { |
| t.Fatalf("unexpected recover: %v != %v", recovered, expected) |
| } |
| }() |
| |
| _ = testcase.Digest.Verifier() |
| }) |
| } |
| } |