[#302] pkg/checksum: Document default values set in NewChecksum

Document field values of instance constructed via `NewChecksum`.
Assert the values in corresponding unit test.

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
This commit is contained in:
Pavel Karpy 2021-06-08 21:09:06 +03:00 committed by Alex Vanin
parent 35b6629e1c
commit bf0d106e54
2 changed files with 22 additions and 2 deletions

View file

@ -34,9 +34,13 @@ func NewChecksumFromV2(cV2 *refs.Checksum) *Checksum {
return (*Checksum)(cV2)
}
// NewVersion creates and initializes blank Version.
// NewChecksum creates and initializes blank Checksum.
//
// Works similar as NewVersionFromV2(new(Version)).
// Works similar as NewChecksumFromV2(new(Checksum)).
//
// Defaults:
// - sum: nil;
// - type: ChecksumUnknown.
func NewChecksum() *Checksum {
return NewChecksumFromV2(new(refs.Checksum))
}

View file

@ -115,3 +115,19 @@ func TestChecksum_ToV2(t *testing.T) {
require.Nil(t, x.ToV2())
})
}
func TestNewChecksum(t *testing.T) {
t.Run("default values", func(t *testing.T) {
chs := NewChecksum()
// check initial values
require.Equal(t, ChecksumUnknown, chs.Type())
require.Nil(t, chs.Sum())
// convert to v2 message
chsV2 := chs.ToV2()
require.Equal(t, refs.UnknownChecksum, chsV2.GetType())
require.Nil(t, chsV2.GetSum())
})
}