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

tests: add tests of pathcopies()...

tests: add tests of pathcopies() I'm working on support for storing copy metadata in the changeset instead of in the filelog. When storing it in the changeset, it will obviously be efficient to get the copy metadata for all files in a single changeset, but it will be more expensive to get the copy metadata all revisions of a single file. Some algorithms will then need to be optimized differently. The first method I'm going to rewrite is pathcopies(). This commit adds many tests for pathcopies(), so we can run the tests with both old and new versions of the code, as well as with metadata stored in filelog or in changeset (later). They use the debugpathcopies command I recently added (with no tests when it was added). They show a few bugs and few cases of slightly weird behavior. I'll fix the bugs in the next few commits. Differential Revision: https://phab.mercurial-scm.org/D5986

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 */