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distribution/digest/digest_test.go
Aaron Lehmann 4c850e7165 Remove tarsum support for digest package
tarsum is not actually used by the registry. Remove support for it.

Convert numerous uses in unit tests to SHA256.

Update docs to remove mentions of tarsums (which were often inaccurate).

Remove tarsum dependency.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-12-15 17:22:18 -08:00

83 lines
2.1 KiB
Go

package digest
import (
"testing"
)
func TestParseDigest(t *testing.T) {
for _, testcase := range []struct {
input string
err error
algorithm Algorithm
hex string
}{
{
input: "sha256:e58fcf7418d4390dec8e8fb69d88c06ec07039d651fedd3aa72af9972e7d046b",
algorithm: "sha256",
hex: "e58fcf7418d4390dec8e8fb69d88c06ec07039d651fedd3aa72af9972e7d046b",
},
{
input: "sha384:d3fc7881460b7e22e3d172954463dddd7866d17597e7248453c48b3e9d26d9596bf9c4a9cf8072c9d5bad76e19af801d",
algorithm: "sha384",
hex: "d3fc7881460b7e22e3d172954463dddd7866d17597e7248453c48b3e9d26d9596bf9c4a9cf8072c9d5bad76e19af801d",
},
{
// empty hex
input: "sha256:",
err: ErrDigestInvalidFormat,
},
{
// just hex
input: "d41d8cd98f00b204e9800998ecf8427e",
err: ErrDigestInvalidFormat,
},
{
// not hex
input: "sha256:d41d8cd98f00b204e9800m98ecf8427e",
err: ErrDigestInvalidFormat,
},
{
// too short
input: "sha256:abcdef0123456789",
err: ErrDigestInvalidLength,
},
{
// too short (from different algorithm)
input: "sha512:abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789",
err: ErrDigestInvalidLength,
},
{
input: "foo:d41d8cd98f00b204e9800998ecf8427e",
err: ErrDigestUnsupported,
},
} {
digest, err := ParseDigest(testcase.input)
if err != testcase.err {
t.Fatalf("error differed from expected while parsing %q: %v != %v", testcase.input, err, testcase.err)
}
if testcase.err != nil {
continue
}
if digest.Algorithm() != testcase.algorithm {
t.Fatalf("incorrect algorithm for parsed digest: %q != %q", digest.Algorithm(), testcase.algorithm)
}
if digest.Hex() != testcase.hex {
t.Fatalf("incorrect hex for parsed digest: %q != %q", digest.Hex(), testcase.hex)
}
// Parse string return value and check equality
newParsed, err := ParseDigest(digest.String())
if err != nil {
t.Fatalf("unexpected error parsing input %q: %v", testcase.input, err)
}
if newParsed != digest {
t.Fatalf("expected equal: %q != %q", newParsed, digest)
}
}
}