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watchtower/blob/justice_kit_test: use test.Run for sub tests

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This commit is contained in:
Conner Fromknecht 2018-10-26 18:01:07 -07:00
parent 832bd8101c
commit ae6f06155a
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GPG Key ID: E7D737B67FA592C7
1 changed files with 79 additions and 79 deletions
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158
watchtower/blob/justice_kit_test.go
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@ -27,7 +27,7 @@ func makeSig(i int) lnwire.Sig {
return sig
}
var descriptorTests = []struct {
type descriptorTest struct {
name string
encVersion uint16
decVersion uint16
@ -40,7 +40,9 @@ var descriptorTests = []struct {
commitToRemoteSig lnwire.Sig
encErr error
decErr error
}{
}
var descriptorTests = []descriptorTest{
{
name: "to-local only",
encVersion: 0,
@ -89,82 +91,80 @@ var descriptorTests = []struct {
// when passed invalid combinations, and that all successfully encrypted blobs
// are of constant size.
func TestBlobJusticeKitEncryptDecrypt(t *testing.T) {
for i, test := range descriptorTests {
boj := &blob.JusticeKit{
RevocationPubKey: test.revPubKey,
LocalDelayPubKey: test.delayPubKey,
CSVDelay: test.csvDelay,
CommitToLocalSig: test.commitToLocalSig,
CommitToRemotePubKey: test.commitToRemotePubKey,
CommitToRemoteSig: test.commitToRemoteSig,
}
// Generate a random encryption key for the blob. The key is
// sized at 32 byte, as in practice we will be using the remote
// party's commitment txid as the key.
key := make([]byte, blob.KeySize)
_, err := io.ReadFull(rand.Reader, key)
if err != nil {
t.Fatalf("test #%d %s -- unable to generate blob "+
"encryption key: %v", i, test.name, err)
}
nonce := make([]byte, blob.NonceSize)
_, err = io.ReadFull(rand.Reader, nonce)
if err != nil {
t.Fatalf("test #%d %s -- unable to generate nonce "+
"nonce: %v", i, test.name, err)
}
// Encrypt the blob plaintext using the generated key and
// target version for this test.
ctxt, err := boj.Encrypt(nonce, key, test.encVersion)
if err != test.encErr {
t.Fatalf("test #%d %s -- unable to encrypt blob: %v",
i, test.name, err)
} else if test.encErr != nil {
// If the test expected an encryption failure, we can
// continue to the next test.
continue
}
// Ensure that all encrypted blobs are padded out to the same
// size: 282 bytes for version 0.
if len(ctxt) != blob.Size(test.encVersion) {
t.Fatalf("test #%d %s -- expected blob to have "+
"size %d, got %d instead", i, test.name,
blob.Size(test.encVersion), len(ctxt))
}
// Decrypt the encrypted blob, reconstructing the original
// blob plaintext from the decrypted contents. We use the target
// decryption version specified by this test case.
boj2, err := blob.Decrypt(nonce, key, ctxt, test.decVersion)
if err != test.decErr {
t.Fatalf("test #%d %s -- unable to decrypt blob: %v",
i, test.name, err)
} else if test.decErr != nil {
// If the test expected an decryption failure, we can
// continue to the next test.
continue
}
// Check that the decrypted blob properly reports whether it has
// a to-remote output or not.
if boj2.HasCommitToRemoteOutput() != test.hasCommitToRemote {
t.Fatalf("test #%d %s -- expected blob has_to_remote "+
"to be %v, got %v", i, test.name,
test.hasCommitToRemote,
boj2.HasCommitToRemoteOutput())
}
// Check that the original blob plaintext matches the
// one reconstructed from the encrypted blob.
if !reflect.DeepEqual(boj, boj2) {
t.Fatalf("test #%d %s -- decrypted plaintext does not "+
"match original, want: %v, got %v",
i, test.name, boj, boj2)
}
for _, test := range descriptorTests {
t.Run(test.name, func(t *testing.T) {
testBlobJusticeKitEncryptDecrypt(t, test)
})
}
}
func testBlobJusticeKitEncryptDecrypt(t *testing.T, test descriptorTest) {
boj := &blob.JusticeKit{
RevocationPubKey: test.revPubKey,
LocalDelayPubKey: test.delayPubKey,
CSVDelay: test.csvDelay,
CommitToLocalSig: test.commitToLocalSig,
CommitToRemotePubKey: test.commitToRemotePubKey,
CommitToRemoteSig: test.commitToRemoteSig,
}
// Generate a random encryption key for the blob. The key is
// sized at 32 byte, as in practice we will be using the remote
// party's commitment txid as the key.
key := make([]byte, blob.KeySize)
_, err := io.ReadFull(rand.Reader, key)
if err != nil {
t.Fatalf("unable to generate blob encryption key: %v", err)
}
nonce := make([]byte, blob.NonceSize)
_, err = io.ReadFull(rand.Reader, nonce)
if err != nil {
t.Fatalf("unable to generate nonce nonce: %v", err)
}
// Encrypt the blob plaintext using the generated key and
// target version for this test.
ctxt, err := boj.Encrypt(nonce, key, test.encVersion)
if err != test.encErr {
t.Fatalf("unable to encrypt blob: %v", err)
} else if test.encErr != nil {
// If the test expected an encryption failure, we can
// continue to the next test.
return
}
// Ensure that all encrypted blobs are padded out to the same
// size: 282 bytes for version 0.
if len(ctxt) != blob.Size(test.encVersion) {
t.Fatalf("expected blob to have size %d, got %d instead",
blob.Size(test.encVersion), len(ctxt))
}
// Decrypt the encrypted blob, reconstructing the original
// blob plaintext from the decrypted contents. We use the target
// decryption version specified by this test case.
boj2, err := blob.Decrypt(nonce, key, ctxt, test.decVersion)
if err != test.decErr {
t.Fatalf("unable to decrypt blob: %v", err)
} else if test.decErr != nil {
// If the test expected an decryption failure, we can
// continue to the next test.
return
}
// Check that the decrypted blob properly reports whether it has
// a to-remote output or not.
if boj2.HasCommitToRemoteOutput() != test.hasCommitToRemote {
t.Fatalf("expected blob has_to_remote to be %v, got %v",
test.hasCommitToRemote, boj2.HasCommitToRemoteOutput())
}
// Check that the original blob plaintext matches the
// one reconstructed from the encrypted blob.
if !reflect.DeepEqual(boj, boj2) {
t.Fatalf("decrypted plaintext does not match original, "+
"want: %v, got %v", boj, boj2)
}
}