forked from TrueCloudLab/distribution
3cfe9aede5
The Digest type will be fairly central for blob and layer management. The type presented in this package provides a number of core features that should enable reliable use within the registry. This commit will be followed by others that convert the storage layer and webapp to use this type as the primary layer/blob CAS identifier.
80 lines
2.2 KiB
Go
80 lines
2.2 KiB
Go
package digest
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import "testing"
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func TestParseDigest(t *testing.T) {
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for _, testcase := range []struct {
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input string
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err error
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algorithm string
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hex string
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}{
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{
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input: "tarsum+sha256:e58fcf7418d4390dec8e8fb69d88c06ec07039d651fedd3aa72af9972e7d046b",
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algorithm: "tarsum+sha256",
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hex: "e58fcf7418d4390dec8e8fb69d88c06ec07039d651fedd3aa72af9972e7d046b",
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},
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{
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input: "tarsum.dev+sha256:e58fcf7418d4390dec8e8fb69d88c06ec07039d651fedd3aa72af9972e7d046b",
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algorithm: "tarsum.dev+sha256",
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hex: "e58fcf7418d4390dec8e8fb69d88c06ec07039d651fedd3aa72af9972e7d046b",
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},
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{
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input: "tarsum.v1+sha256:220a60ecd4a3c32c282622a625a54db9ba0ff55b5ba9c29c7064a2bc358b6a3e",
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algorithm: "tarsum.v1+sha256",
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hex: "220a60ecd4a3c32c282622a625a54db9ba0ff55b5ba9c29c7064a2bc358b6a3e",
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},
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{
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input: "sha256:e58fcf7418d4390dec8e8fb69d88c06ec07039d651fedd3aa72af9972e7d046b",
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algorithm: "sha256",
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hex: "e58fcf7418d4390dec8e8fb69d88c06ec07039d651fedd3aa72af9972e7d046b",
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},
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{
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input: "md5:d41d8cd98f00b204e9800998ecf8427e",
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algorithm: "md5",
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hex: "d41d8cd98f00b204e9800998ecf8427e",
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},
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{
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// empty hex
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input: "sha256:",
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err: ErrDigestInvalidFormat,
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},
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{
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// just hex
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input: "d41d8cd98f00b204e9800998ecf8427e",
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err: ErrDigestInvalidFormat,
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},
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{
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input: "foo:d41d8cd98f00b204e9800998ecf8427e",
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err: ErrDigestUnsupported,
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},
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} {
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digest, err := ParseDigest(testcase.input)
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if err != testcase.err {
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t.Fatalf("error differed from expected while parsing %q: %v != %v", testcase.input, err, testcase.err)
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}
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if testcase.err != nil {
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continue
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}
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if digest.Algorithm() != testcase.algorithm {
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t.Fatalf("incorrect algorithm for parsed digest: %q != %q", digest.Algorithm(), testcase.algorithm)
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}
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if digest.Hex() != testcase.hex {
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t.Fatalf("incorrect hex for parsed digest: %q != %q", digest.Hex(), testcase.hex)
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}
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// Parse string return value and check equality
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newParsed, err := ParseDigest(digest.String())
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if err != nil {
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t.Fatalf("unexpected error parsing input %q: %v", testcase.input, err)
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}
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if newParsed != digest {
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t.Fatalf("expected equal: %q != %q", newParsed, digest)
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}
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}
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}
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