14689ec238
This introduces Versions for TarSum checksums. Fixes: https://github.com/docker/docker/issues/7526 It preserves current functionality and abstracts the interface for future flexibility of hashing algorithms. As a POC, the VersionDev Tarsum does not include the mtime in the checksum calculation, and would solve https://github.com/docker/docker/issues/7387 though this is not a settled Version is subject to change until a version number is assigned. Signed-off-by: Vincent Batts <vbatts@redhat.com>
49 lines
1 KiB
Go
49 lines
1 KiB
Go
package tarsum
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import (
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"testing"
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)
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func TestVersion(t *testing.T) {
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expected := "tarsum"
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var v Version
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if v.String() != expected {
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t.Errorf("expected %q, got %q", expected, v.String())
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}
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expected = "tarsum.dev"
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v = 1
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if v.String() != expected {
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t.Errorf("expected %q, got %q", expected, v.String())
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}
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}
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func TestGetVersion(t *testing.T) {
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testSet := []struct {
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Str string
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Expected Version
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}{
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{"tarsum+sha256:e58fcf7418d4390dec8e8fb69d88c06ec07039d651fedd3aa72af9972e7d046b", Version0},
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{"tarsum+sha256", Version0},
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{"tarsum", Version0},
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{"tarsum.dev", VersionDev},
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{"tarsum.dev+sha256:deadbeef", VersionDev},
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}
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for _, ts := range testSet {
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v, err := GetVersionFromTarsum(ts.Str)
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if err != nil {
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t.Fatalf("%q : %s", err, ts.Str)
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}
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if v != ts.Expected {
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t.Errorf("expected %d (%q), got %d (%q)", ts.Expected, ts.Expected, v, v)
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}
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}
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// test one that does not exist, to ensure it errors
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str := "weak+md5:abcdeabcde"
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_, err := GetVersionFromTarsum(str)
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if err != ErrNotVersion {
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t.Fatalf("%q : %s", err, str)
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}
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}
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