54877253c8
The functional test feature_taproot.py fails in some rare cases on the
execution of the `"branched_codesep"` spending script. The problem
occurs if the first data-push (having random content with a random
length in the range [0, 510]) has a length of 1 and the single byte has
value of [1...16] or [-1]; in this case, the data-push is not minimally
encoded by test framework's CScript class (i.e. doesn't use the special
op-codes OP_1...OP_16 or OP_1NEGATE) and the script interpreter throws
an SCRIPT_ERR_MINIMALDATA error:
```
test_framework.authproxy.JSONRPCException: non-mandatory-script-verify-flag (Data push larger than necessary) (-26)
```
Background:
The functional test framework's CScript class translates passed
bytes/bytearrays always to data pushes using OP_PUSHx/OP_PUSHDATA{1,2,4}
op-codes. E.g. the expression `CScript(bytes([1]))` yields
`bytes([OP_PUSH1, 1])` instead of the minimal-encoded `bytes([OP_1])`.
Fix this by adapting the random-size range to [2,...], i.e. never pass
byte-arrays below length two to be pushed.
Closes #27595.
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| .github | ||
| .tx | ||
| build-aux/m4 | ||
| build_msvc | ||
| ci | ||
| contrib | ||
| depends | ||
| doc | ||
| share | ||
| src | ||
| test | ||
| .cirrus.yml | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .python-version | ||
| .style.yapf | ||
| autogen.sh | ||
| configure.ac | ||
| CONTRIBUTING.md | ||
| COPYING | ||
| INSTALL.md | ||
| libbitcoinconsensus.pc.in | ||
| Makefile.am | ||
| README.md | ||
| SECURITY.md | ||
Bitcoin Core integration/staging tree
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