thodg/libgit2/tests/apply/check.c

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• Hash : 02af1fcb
  Author :
  Date : 2019-09-14T14:03:36
  

  apply: add GIT_APPLY_CHECK This adds an option which will check if a diff is applicable without actually applying it; equivalent to git apply --check.

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• tests/apply/check.c

• #include "clar_libgit2.h"
  #include "apply_helpers.h"
  
  static git_repository *repo;
  
  #define TEST_REPO_PATH "merge-recursive"
  
  void test_apply_check__initialize(void)
  {
  	git_oid oid;
  	git_commit *commit;
  
  	repo = cl_git_sandbox_init(TEST_REPO_PATH);
  
  	git_oid_fromstr(&oid, "539bd011c4822c560c1d17cab095006b7a10f707");
  	cl_git_pass(git_commit_lookup(&commit, repo, &oid));
  	cl_git_pass(git_reset(repo, (git_object *)commit, GIT_RESET_HARD, NULL));
  	git_commit_free(commit);
  }
  
  void test_apply_check__cleanup(void)
  {
  	cl_git_sandbox_cleanup();
  }
  
  void test_apply_check__generate_diff(void)
  {
  	git_oid a_oid, b_oid;
  	git_commit *a_commit, *b_commit;
  	git_tree *a_tree, *b_tree;
  	git_diff *diff;
  	git_diff_options diff_opts = GIT_DIFF_OPTIONS_INIT;
  	git_apply_options opts = GIT_APPLY_OPTIONS_INIT;
  
  	cl_git_pass(git_oid_fromstr(&a_oid, "539bd011c4822c560c1d17cab095006b7a10f707"));
  	cl_git_pass(git_oid_fromstr(&b_oid, "7c7bf85e978f1d18c0566f702d2cb7766b9c8d4f"));
  	cl_git_pass(git_commit_lookup(&a_commit, repo, &a_oid));
  	cl_git_pass(git_commit_lookup(&b_commit, repo, &b_oid));
  
  	cl_git_pass(git_commit_tree(&a_tree, a_commit));
  	cl_git_pass(git_commit_tree(&b_tree, b_commit));
  
  	opts.flags |= GIT_APPLY_CHECK;
  	cl_git_pass(git_diff_tree_to_tree(&diff, repo, a_tree, b_tree, &diff_opts));
  	cl_git_pass(git_apply(repo, diff, GIT_APPLY_LOCATION_BOTH, &opts));
  
  	validate_index_unchanged(repo);
  	validate_workdir_unchanged(repo);
  
  	git_diff_free(diff);
  	git_tree_free(a_tree);
  	git_tree_free(b_tree);
  	git_commit_free(a_commit);
  	git_commit_free(b_commit);
  }
  
  void test_apply_check__parsed_diff(void)
  {
  	git_diff *diff;
  	git_apply_options opts = GIT_APPLY_OPTIONS_INIT;
  
  	opts.flags |= GIT_APPLY_CHECK;
  	cl_git_pass(git_diff_from_buffer(&diff,
  		DIFF_MODIFY_TWO_FILES, strlen(DIFF_MODIFY_TWO_FILES)));
  	cl_git_pass(git_apply(repo, diff, GIT_APPLY_LOCATION_INDEX, &opts));
  
  	validate_index_unchanged(repo);
  	validate_workdir_unchanged(repo);
  
  	git_diff_free(diff);
  }
  
  void test_apply_check__binary(void)
  {
     git_diff *diff;
     git_apply_options opts = GIT_APPLY_OPTIONS_INIT;
  
     opts.flags |= GIT_APPLY_CHECK;
     cl_git_pass(git_diff_from_buffer(&diff,
         DIFF_MODIFY_TWO_FILES_BINARY,
         strlen(DIFF_MODIFY_TWO_FILES_BINARY)));
     cl_git_pass(git_apply(repo, diff, GIT_APPLY_LOCATION_INDEX, &opts));
  
     validate_index_unchanged(repo);
     validate_workdir_unchanged(repo);
  
     git_diff_free(diff);
  }
  
  void test_apply_check__does_not_apply(void)
  {
  	git_diff *diff;
  	git_index *index;
  	git_apply_options opts = GIT_APPLY_OPTIONS_INIT;
  
  	const char *diff_file = DIFF_MODIFY_TWO_FILES;
  
  	struct merge_index_entry index_expected[] = {
  		{ 0100644, "f51658077d85f2264fa179b4d0848268cb3475c3", 0, "asparagus.txt" },
  		{ 0100644, "68f6182f4c85d39e1309d97c7e456156dc9c0096", 0, "beef.txt" },
  		{ 0100644, "4b7c5650008b2e747fe1809eeb5a1dde0e80850a", 0, "bouilli.txt" },
  		{ 0100644, "c4e6cca3ec6ae0148ed231f97257df8c311e015f", 0, "gravy.txt" },
  		{ 0100644, "68af1fc7407fd9addf1701a87eb1c95c7494c598", 0, "oyster.txt" },
  	};
  	size_t index_expected_cnt = sizeof(index_expected) /
  		sizeof(struct merge_index_entry);
  
  	/* mutate the index */
  	cl_git_pass(git_repository_index(&index, repo));
  	cl_git_pass(git_index_remove(index, "veal.txt", 0));
  	cl_git_pass(git_index_write(index));
  	git_index_free(index);
  
  	opts.flags |= GIT_APPLY_CHECK;
  	cl_git_pass(git_diff_from_buffer(&diff, diff_file, strlen(diff_file)));
  	cl_git_fail_with(GIT_EAPPLYFAIL, git_apply(repo, diff, GIT_APPLY_LOCATION_INDEX, &opts));
  
  	validate_apply_index(repo, index_expected, index_expected_cnt);
  
  	git_diff_free(diff);
  }
  

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