Mercurial > hg
view contrib/fuzz/manifest.cc @ 51479:5bd31e68c7a3
stream-clone-test: add title to various test cases
These case are fine as is, but as we are adding title to all the other as we
simplify them, lets add title for all cases.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Fri, 08 Mar 2024 10:59:51 +0100 |
parents | 0ff59434af72 |
children |
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#include <Python.h> #include <assert.h> #include <stdlib.h> #include <unistd.h> #include "FuzzedDataProvider.h" #include "pyutil.h" #include <string> extern "C" { static PYCODETYPE *code; extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) { contrib::initpy(*argv[0]); code = (PYCODETYPE *)Py_CompileString(R"py( try: lm = parsers.lazymanifest(mdata) # iterate the whole thing, which causes the code to fully parse # every line in the manifest for e, _, _ in lm.iterentries(): # also exercise __getitem__ et al lm[e] e in lm (e + 'nope') in lm lm[b'xyzzy'] = (b'\0' * nlen, 'x') # do an insert, text should change assert lm.text() != mdata, "insert should change text and didn't: %r %r" % (lm.text(), mdata) cloned = lm.filtercopy(lambda x: x != 'xyzzy') assert cloned.text() == mdata, 'cloned text should equal mdata' cloned.diff(lm) del lm[b'xyzzy'] cloned.diff(lm) # should be back to the same assert lm.text() == mdata, "delete should have restored text but didn't: %r %r" % (lm.text(), mdata) except Exception as e: pass # uncomment this print if you're editing this Python code # to debug failures. # print e )py", "fuzzer", Py_file_input); return 0; } int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { // Don't allow fuzzer inputs larger than 100k, since we'll just bog // down and not accomplish much. if (Size > 100000) { return 0; } FuzzedDataProvider provider(Data, Size); Py_ssize_t nodelength = provider.ConsumeBool() ? 20 : 32; PyObject *nlen = PyLong_FromSsize_t(nodelength); PyObject *mtext = PyBytes_FromStringAndSize((const char *)Data, (Py_ssize_t)Size); PyObject *locals = PyDict_New(); PyDict_SetItemString(locals, "mdata", mtext); PyDict_SetItemString(locals, "nlen", nlen); PyObject *res = PyEval_EvalCode(code, contrib::pyglobals(), locals); if (!res) { PyErr_Print(); } Py_XDECREF(res); Py_DECREF(locals); Py_DECREF(mtext); return 0; // Non-zero return values are reserved for future use. } }