test: wallet: cover wallet passphrase with a null char

brunoerg commented at 5:17 pm on June 3, 2025: contributor

This PR adds test coverage for the walletpassphrase/walletpassphrasechange RPC when the passphrase is incorrect due to a null character.

For reference: #27068 introduced the usage of SecureString to allow null characters.

DrahtBot commented at 5:17 pm on June 3, 2025: contributor

The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

Code Coverage & Benchmarks

For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/32675.

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Type	Reviewers
ACK	maflcko, w0xlt, BrandonOdiwuor, theStack, pablomartin4btc, achow101

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Conflicts

Reviewers, this pull request conflicts with the following ones:

#32290 (test: allow all functional tests to be run or skipped with –usecli by mzumsande)

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DrahtBot added the label Tests on Jun 3, 2025

test: wallet: cover wallet passphrase with a null char 7cfbb8575e

in test/functional/wallet_encryption.py:99 in 3b90060a2d outdated

94@@ -95,6 +95,7 @@ def run_test(self):
95         self.nodes[0].walletpassphrasechange(passphrase2, passphrase_with_nulls)
96         # walletpassphrasechange should not stop at null characters
97         assert_raises_rpc_error(-14, "wallet passphrase entered was incorrect", self.nodes[0].walletpassphrase, passphrase_with_nulls.partition("\0")[0], 10)
98+        assert_raises_rpc_error(-14, "wallet passphrase entered is incorrect. It contains a null character (ie - a zero byte)", self.nodes[0].walletpassphrase, passphrase_with_nulls + "\0", 10)

maflcko commented at 7:39 pm on June 3, 2025:

might as well add coverage for walletpassphrasechange as well?

brunoerg commented at 12:36 pm on June 4, 2025:

Yes, going to add it.

brunoerg commented at 1:07 pm on June 4, 2025:

Done

brunoerg force-pushed on Jun 4, 2025

brunoerg commented at 1:08 pm on June 4, 2025: contributor

3b90060a2df2b65369117f3ee8afe26be631867d..7cfbb8575e1ffbad5c48e2c461b45dd6ac63d064 address #32675 (review)

maflcko commented at 1:11 pm on June 4, 2025: member

lgtm ACK 7cfbb8575e1ffbad5c48e2c461b45dd6ac63d064

w0xlt commented at 11:39 pm on June 4, 2025: contributor

Code review ACK https://github.com/bitcoin/bitcoin/pull/32675/commits/7cfbb8575e1ffbad5c48e2c461b45dd6ac63d064

BrandonOdiwuor commented at 10:37 am on June 5, 2025: contributor

Code Review ACK 7cfbb8575e1ffbad5c48e2c461b45dd6ac63d064

in test/functional/wallet_encryption.py:100 in 7cfbb8575e

 94@@ -95,6 +95,9 @@ def run_test(self):
 95         self.nodes[0].walletpassphrasechange(passphrase2, passphrase_with_nulls)
 96         # walletpassphrasechange should not stop at null characters
 97         assert_raises_rpc_error(-14, "wallet passphrase entered was incorrect", self.nodes[0].walletpassphrase, passphrase_with_nulls.partition("\0")[0], 10)
 98+        assert_raises_rpc_error(-14, "The wallet passphrase entered was incorrect", self.nodes[0].walletpassphrasechange, passphrase_with_nulls.partition("\0")[0], "abc")
 99+        assert_raises_rpc_error(-14, "wallet passphrase entered is incorrect. It contains a null character (ie - a zero byte)", self.nodes[0].walletpassphrase, passphrase_with_nulls + "\0", 10)
100+        assert_raises_rpc_error(-14, "The old wallet passphrase entered is incorrect. It contains a null character (ie - a zero byte)", self.nodes[0].walletpassphrasechange, passphrase_with_nulls + "\0", "abc")

theStack commented at 12:58 pm on June 5, 2025:

nit: as there is already a null character inside the string, could just append a regular character at the end to cause a mismatch with this error message

0        assert_raises_rpc_error(-14, "wallet passphrase entered is incorrect. It contains a null character (ie - a zero byte)", self.nodes[0].walletpassphrase, passphrase_with_nulls + "x", 10)
1        assert_raises_rpc_error(-14, "The old wallet passphrase entered is incorrect. It contains a null character (ie - a zero byte)", self.nodes[0].walletpassphrasechange, passphrase_with_nulls + "x", "abc")

brunoerg commented at 2:24 pm on June 5, 2025:

Yes, make sense, thanks. I will just keep as-is to not invalidate the reviews.

theStack approved

theStack commented at 12:59 pm on June 5, 2025: contributor

ACK 7cfbb8575e1ffbad5c48e2c461b45dd6ac63d064

in test/functional/wallet_encryption.py:99 in 7cfbb8575e

94@@ -95,6 +95,9 @@ def run_test(self):
95         self.nodes[0].walletpassphrasechange(passphrase2, passphrase_with_nulls)
96         # walletpassphrasechange should not stop at null characters
97         assert_raises_rpc_error(-14, "wallet passphrase entered was incorrect", self.nodes[0].walletpassphrase, passphrase_with_nulls.partition("\0")[0], 10)
98+        assert_raises_rpc_error(-14, "The wallet passphrase entered was incorrect", self.nodes[0].walletpassphrasechange, passphrase_with_nulls.partition("\0")[0], "abc")
99+        assert_raises_rpc_error(-14, "wallet passphrase entered is incorrect. It contains a null character (ie - a zero byte)", self.nodes[0].walletpassphrase, passphrase_with_nulls + "\0", 10)

pablomartin4btc commented at 4:19 pm on June 5, 2025:

nit: again if you have to retouch… otherwise when you search for that “similar” description in the code you get both places (“The wallet” and “The Old wallet”)

0        assert_raises_rpc_error(-14, "The wallet passphrase entered is incorrect. It contains a null character (ie - a zero byte)", self.nodes[0].walletpassphrase, passphrase_with_nulls + "\0", 10)

brunoerg commented at 2:50 pm on June 6, 2025:

I will leave as-is for now to not invalidate the reivews. Thanks.

in test/functional/wallet_encryption.py:96 in 7cfbb8575e

94@@ -95,6 +95,9 @@ def run_test(self):
95         self.nodes[0].walletpassphrasechange(passphrase2, passphrase_with_nulls)
96         # walletpassphrasechange should not stop at null characters

pablomartin4btc commented at 4:19 pm on June 5, 2025:

nit: if you have to retouch maybe… even if it’s not entirely part of the scope of the change…

0        # walletpassphrasechange should not stop at null characters as prior to v25.0

And a test could be added in wallet_backcompatibility.py if it makes sense.

brunoerg commented at 2:50 pm on June 6, 2025:

Same. And maybe out of scope, will see.

in test/functional/wallet_encryption.py:98 in 7cfbb8575e

94@@ -95,6 +95,9 @@ def run_test(self):
95         self.nodes[0].walletpassphrasechange(passphrase2, passphrase_with_nulls)
96         # walletpassphrasechange should not stop at null characters
97         assert_raises_rpc_error(-14, "wallet passphrase entered was incorrect", self.nodes[0].walletpassphrase, passphrase_with_nulls.partition("\0")[0], 10)
98+        assert_raises_rpc_error(-14, "The wallet passphrase entered was incorrect", self.nodes[0].walletpassphrasechange, passphrase_with_nulls.partition("\0")[0], "abc")

pablomartin4btc commented at 4:23 pm on June 5, 2025:

nit: just if you retouch… to be consistent with other places where that error description is being compared…

0        assert_raises_rpc_error(-14, "wallet passphrase entered was incorrect", self.nodes[0].walletpassphrasechange, passphrase_with_nulls.partition("\0")[0], "abc")

brunoerg commented at 2:51 pm on June 6, 2025:

Same

pablomartin4btc commented at 4:29 pm on June 5, 2025: member

cr ACK 7cfbb8575e1ffbad5c48e2c461b45dd6ac63d064

In the description: “This PR adds test coverage for the walletpassphrase RPC…” should include also "walletpassphrasechange".

achow101 commented at 10:05 pm on June 6, 2025: member

ACK 7cfbb8575e1ffbad5c48e2c461b45dd6ac63d064

achow101 merged this on Jun 6, 2025

achow101 closed this on Jun 6, 2025

test: wallet: cover wallet passphrase with a null char #32675

Code Coverage & Benchmarks

Reviews

Conflicts