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The module, the script entrypoints and Makefile, Docker-only linting, the mnemonic sources in the specified order with their refusals, the BIP-85 derivation, and keyfunc ssh pub and priv with the README test vectors as tests. Two review rounds; the second passed with no findings. Model: opus-5 (implementation and review); fable-5-1 (landing)
62 lines
1.4 KiB
Go
62 lines
1.4 KiB
Go
package derive_test
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import (
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"bytes"
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"strings"
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"testing"
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"git.eeqj.de/sneak/keyfunc/internal/derive"
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"github.com/stretchr/testify/require"
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)
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// application is the number the SSH key type uses.
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const application = 838372
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// example returns the mnemonic every BIP-39 document uses to show its
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// test vectors: eleven abandons and about.
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func example() string {
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return strings.Repeat("abandon ", 11) + "about"
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}
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func TestPathIsTheOneTheSpecificationGives(t *testing.T) {
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t.Parallel()
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require.Equal(t, "m/83696968'/838372'/3'", derive.Path(application, 3))
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}
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func TestEveryIndexGivesItsOwnBytes(t *testing.T) {
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t.Parallel()
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first, err := derive.Bytes(example(), application, 0)
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require.NoError(t, err)
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require.Len(t, first, derive.Size)
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second, err := derive.Bytes(example(), application, 1)
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require.NoError(t, err)
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require.Len(t, second, derive.Size)
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require.False(t, bytes.Equal(first, second))
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}
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func TestAnIndexWithNoHardenedChildIsRefused(t *testing.T) {
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t.Parallel()
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_, err := derive.Bytes(example(), application, derive.MaxIndex+1)
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require.ErrorIs(t, err, derive.ErrIndexTooLarge)
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_, err = derive.Bytes(example(), application, derive.MaxIndex)
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require.NoError(t, err)
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}
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func TestTheSameInputAlwaysGivesTheSameBytes(t *testing.T) {
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t.Parallel()
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once, err := derive.Bytes(example(), application, 7)
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require.NoError(t, err)
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again, err := derive.Bytes(example(), application, 7)
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require.NoError(t, err)
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require.Equal(t, once, again)
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}
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