thodg/libgit2/tests/diff/parse.c

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• Hash : 7166bb16
  Author :
  Date : 2016-04-25T00:35:48
  

  introduce `git_diff_from_buffer` to parse diffs Parse diff files into a `git_diff` structure.

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• tests/diff/parse.c

• #include "clar_libgit2.h"
  #include "patch.h"
  #include "patch_parse.h"
  
  #include "../patch/patch_common.h"
  
  void test_diff_parse__nonpatches_fail_with_notfound(void)
  {
  	git_diff *diff;
  	const char *not = PATCH_NOT_A_PATCH;
  	const char *not_with_leading = "Leading text.\n" PATCH_NOT_A_PATCH;
  	const char *not_with_trailing = PATCH_NOT_A_PATCH "Trailing text.\n";
  	const char *not_with_both = "Lead.\n" PATCH_NOT_A_PATCH "Trail.\n";
  
  	cl_git_fail_with(GIT_ENOTFOUND,
  		git_diff_from_buffer(&diff,
  		not,
  		strlen(not)));
  	cl_git_fail_with(GIT_ENOTFOUND,
  		git_diff_from_buffer(&diff,
  		not_with_leading,
  		strlen(not_with_leading)));
  	cl_git_fail_with(GIT_ENOTFOUND,
  		git_diff_from_buffer(&diff,
  		not_with_trailing,
  		strlen(not_with_trailing)));
  	cl_git_fail_with(GIT_ENOTFOUND,
  		git_diff_from_buffer(&diff,
  		not_with_both,
  		strlen(not_with_both)));
  }
  
  static void test_parse_invalid_diff(const char *invalid_diff)
  {
  	git_diff *diff;
  	git_buf buf = GIT_BUF_INIT;
  
  	/* throw some random (legitimate) diffs in with the given invalid
  	 * one.
  	 */
  	git_buf_puts(&buf, PATCH_ORIGINAL_TO_CHANGE_FIRSTLINE);
  	git_buf_puts(&buf, PATCH_BINARY_DELTA);
  	git_buf_puts(&buf, invalid_diff);
  	git_buf_puts(&buf, PATCH_ORIGINAL_TO_CHANGE_MIDDLE);
  	git_buf_puts(&buf, PATCH_BINARY_LITERAL);
  
  	cl_git_fail_with(GIT_ERROR,
  		git_diff_from_buffer(&diff, buf.ptr, buf.size));
  
  	git_buf_free(&buf);
  }
  
  void test_diff_parse__invalid_patches_fails(void)
  {
  	test_parse_invalid_diff(PATCH_CORRUPT_MISSING_NEW_FILE);
  	test_parse_invalid_diff(PATCH_CORRUPT_MISSING_OLD_FILE);
  	test_parse_invalid_diff(PATCH_CORRUPT_NO_CHANGES);
  	test_parse_invalid_diff(PATCH_CORRUPT_MISSING_HUNK_HEADER);
  }
  
  

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