upstream/mercurial-mirror Files · contrib/fuzz/fuzzutil.h

copies: add test that makes both the merging csets dirty and fails...

copies: add test that makes both the merging csets dirty and fails This patch is a part of series which is about the case when both the merging csets are not descendant of merge base. The existing code assumes if c1 is dirty there shouldn't be any partial copies from c2 i.e both2['incomplete'] and same for c2, if c2 is dirty both1['incomplete'] should be empty, but this is not the right assumption. Now as we know we can have both c1 and c2 dirty at the same time, it is possible that c1 is dirty and both2['incomplete'] has some value. Or if c2 is dirty and both1['incomplete'] has some value. Added test shows that because of this assumption it could fail. Differential Revision: https://phab.mercurial-scm.org/D5962

Augie Fackler - - Load All Authors

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      #ifndef CONTRIB_FUZZ_FUZZUTIL_H

      #define CONTRIB_FUZZ_FUZZUTIL_H

      #include <iostream>

      #include <memory>

      #include <stdint.h>

      /* Try and use std::optional, but failing that assume we'll have a

       * workable https://abseil.io/ install on the include path to get

       * their backport of std::optional. */

      #ifdef __has_include

      #if __has_include(<optional>) && __cplusplus >= 201703L

      #include <optional>

      #define CONTRIB_FUZZ_HAVE_STD_OPTIONAL

      #endif

      #endif

      #ifdef CONTRIB_FUZZ_HAVE_STD_OPTIONAL

      namespace contrib

      {

      using std::nullopt;

      using std::optional;

      } /* namespace contrib */

      #else

      #include "third_party/absl/types/optional.h"

      namespace contrib

      {

      using absl::nullopt;

      using absl::optional;

      } /* namespace contrib */

      #endif

      /* set DEBUG to 1 for a few debugging prints, or 2 for a lot */

      #define DEBUG 0

      #define LOG(level)                                                             \

      	if (level <= DEBUG)                                                    \

      	std::cout

      struct two_inputs {

      	std::unique_ptr<char[]> right;

      	size_t right_size;

      	std::unique_ptr<char[]> left;

      	size_t left_size;

      };

      /* Split a non-zero-length input into two inputs. */

      contrib::optional<two_inputs> SplitInputs(const uint8_t *Data, size_t Size);

      #endif /* CONTRIB_FUZZ_FUZZUTIL_H */

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				#ifndef CONTRIB_FUZZ_FUZZUTIL_H
				#define CONTRIB_FUZZ_FUZZUTIL_H
				#include <iostream>
				#include <memory>
				#include <stdint.h>

				/* Try and use std::optional, but failing that assume we'll have a
				* workable https://abseil.io/ install on the include path to get
				* their backport of std::optional. */
				#ifdef __has_include
				#if __has_include(<optional>) && __cplusplus >= 201703L
				#include <optional>
				#define CONTRIB_FUZZ_HAVE_STD_OPTIONAL
				#endif
				#endif
				#ifdef CONTRIB_FUZZ_HAVE_STD_OPTIONAL
				namespace contrib
				{
				using std::nullopt;
				using std::optional;
				} /* namespace contrib */
				#else
				#include "third_party/absl/types/optional.h"
				namespace contrib
				{
				using absl::nullopt;
				using absl::optional;
				} /* namespace contrib */
				#endif

				/* set DEBUG to 1 for a few debugging prints, or 2 for a lot */
				#define DEBUG 0
				#define LOG(level) \
				if (level <= DEBUG) \
				std::cout

				struct two_inputs {
				std::unique_ptr<char[]> right;
				size_t right_size;
				std::unique_ptr<char[]> left;
				size_t left_size;
				};

				/* Split a non-zero-length input into two inputs. */
				contrib::optional<two_inputs> SplitInputs(const uint8_t *Data, size_t Size);

				#endif /* CONTRIB_FUZZ_FUZZUTIL_H */