thodg/libgit2/tests/reset/hard.c

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• Hash : ba52879b
  Author :
  Date : 2016-04-11T11:37:02
  

  reset: use real ids for the tests This lets us run with strict object creation on.

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• tests/reset/hard.c

• #include "clar_libgit2.h"
  #include "posix.h"
  #include "reset_helpers.h"
  #include "path.h"
  #include "fileops.h"
  
  static git_repository *repo;
  static git_object *target;
  
  void test_reset_hard__initialize(void)
  {
  	repo = cl_git_sandbox_init("status");
  	target = NULL;
  }
  
  void test_reset_hard__cleanup(void)
  {
  	if (target != NULL) {
  		git_object_free(target);
  		target = NULL;
  	}
  
  	cl_git_sandbox_cleanup();
  }
  
  static int strequal_ignore_eol(const char *exp, const char *str)
  {
  	while (*exp && *str) {
  		if (*exp != *str) {
  			while (*exp == '\r' || *exp == '\n') ++exp;
  			while (*str == '\r' || *str == '\n') ++str;
  			if (*exp != *str)
  				return false;
  		} else {
  			exp++; str++;
  		}
  	}
  	return (!*exp && !*str);
  }
  
  void test_reset_hard__resetting_reverts_modified_files(void)
  {
  	git_buf path = GIT_BUF_INIT, content = GIT_BUF_INIT;
  	int i;
  	static const char *files[4] = {
  		"current_file",
  		"modified_file",
  		"staged_new_file",
  		"staged_changes_modified_file" };
  	static const char *before[4] = {
  		"current_file\n",
  		"modified_file\nmodified_file\n",
  		"staged_new_file\n",
  		"staged_changes_modified_file\nstaged_changes_modified_file\nstaged_changes_modified_file\n"
  	};
  	static const char *after[4] = {
  		"current_file\n",
  		"modified_file\n",
  		NULL,
  		"staged_changes_modified_file\n"
  	};
  	const char *wd = git_repository_workdir(repo);
  
  	cl_assert(wd);
  
  	for (i = 0; i < 4; ++i) {
  		cl_git_pass(git_buf_joinpath(&path, wd, files[i]));
  		cl_git_pass(git_futils_readbuffer(&content, path.ptr));
  		cl_assert_equal_s(before[i], content.ptr);
  	}
  
  	cl_git_pass(git_revparse_single(&target, repo, "26a125e"));
  
  	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD, NULL));
  
  	for (i = 0; i < 4; ++i) {
  		cl_git_pass(git_buf_joinpath(&path, wd, files[i]));
  		if (after[i]) {
  			cl_git_pass(git_futils_readbuffer(&content, path.ptr));
  			cl_assert(strequal_ignore_eol(after[i], content.ptr));
  		} else {
  			cl_assert(!git_path_exists(path.ptr));
  		}
  	}
  
  	git_buf_free(&content);
  	git_buf_free(&path);
  }
  
  void test_reset_hard__cannot_reset_in_a_bare_repository(void)
  {
  	git_repository *bare;
  
  	cl_git_pass(git_repository_open(&bare, cl_fixture("testrepo.git")));
  	cl_assert(git_repository_is_bare(bare) == true);
  
  	cl_git_pass(git_revparse_single(&target, bare, KNOWN_COMMIT_IN_BARE_REPO));
  
  	cl_assert_equal_i(GIT_EBAREREPO, git_reset(bare, target, GIT_RESET_HARD, NULL));
  
  	git_repository_free(bare);
  }
  
  static void index_entry_init(git_index *index, int side, git_oid *oid)
  {
  	git_index_entry entry;
  
  	memset(&entry, 0x0, sizeof(git_index_entry));
  
  	entry.path = "conflicting_file";
  	GIT_IDXENTRY_STAGE_SET(&entry, side);
  	entry.mode = 0100644;
  	git_oid_cpy(&entry.id, oid);
  
  	cl_git_pass(git_index_add(index, &entry));
  }
  
  static void unmerged_index_init(git_index *index, int entries)
  {
  	int write_ancestor = 1;
  	int write_ours = 2;
  	int write_theirs = 4;
  	git_oid ancestor, ours, theirs;
  
  	git_oid_fromstr(&ancestor, "452e4244b5d083ddf0460acf1ecc74db9dcfa11a");
  	git_oid_fromstr(&ours, "32504b727382542f9f089e24fddac5e78533e96c");
  	git_oid_fromstr(&theirs, "061d42a44cacde5726057b67558821d95db96f19");
  
  	cl_git_rewritefile("status/conflicting_file", "conflicting file\n");
  
  	if (entries & write_ancestor)
  		index_entry_init(index, 1, &ancestor);
  
  	if (entries & write_ours)
  		index_entry_init(index, 2, &ours);
  
  	if (entries & write_theirs)
  		index_entry_init(index, 3, &theirs);
  }
  
  void test_reset_hard__resetting_reverts_unmerged(void)
  {
  	git_index *index;
  	int entries;
  
  	/* Ensure every permutation of non-zero stage entries results in the
  	 * path being cleaned up. */
  	for (entries = 1; entries < 8; entries++) {
  		cl_git_pass(git_repository_index(&index, repo));
  
  		unmerged_index_init(index, entries);
  		cl_git_pass(git_index_write(index));
  
  		cl_git_pass(git_revparse_single(&target, repo, "26a125e"));
  		cl_git_pass(git_reset(repo, target, GIT_RESET_HARD, NULL));
  
  		cl_assert(git_path_exists("status/conflicting_file") == 0);
  
  		git_object_free(target);
  		target = NULL;
  
  		git_index_free(index);
  	}
  }
  
  void test_reset_hard__cleans_up_merge(void)
  {
  	git_buf merge_head_path = GIT_BUF_INIT,
  		merge_msg_path = GIT_BUF_INIT,
  		merge_mode_path = GIT_BUF_INIT,
  		orig_head_path = GIT_BUF_INIT;
  
  	cl_git_pass(git_buf_joinpath(&merge_head_path, git_repository_path(repo), "MERGE_HEAD"));
  	cl_git_mkfile(git_buf_cstr(&merge_head_path), "beefbeefbeefbeefbeefbeefbeefbeefbeefbeef\n");
  
  	cl_git_pass(git_buf_joinpath(&merge_msg_path, git_repository_path(repo), "MERGE_MSG"));
  	cl_git_mkfile(git_buf_cstr(&merge_msg_path), "Merge commit 0017bd4ab1ec30440b17bae1680cff124ab5f1f6\n");
  
  	cl_git_pass(git_buf_joinpath(&merge_mode_path, git_repository_path(repo), "MERGE_MODE"));
  	cl_git_mkfile(git_buf_cstr(&merge_mode_path), "");
  
  	cl_git_pass(git_buf_joinpath(&orig_head_path, git_repository_path(repo), "ORIG_HEAD"));
  	cl_git_mkfile(git_buf_cstr(&orig_head_path), "0017bd4ab1ec30440b17bae1680cff124ab5f1f6");
  
  	cl_git_pass(git_revparse_single(&target, repo, "0017bd4"));
  	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD, NULL));
  
  	cl_assert(!git_path_exists(git_buf_cstr(&merge_head_path)));
  	cl_assert(!git_path_exists(git_buf_cstr(&merge_msg_path)));
  	cl_assert(!git_path_exists(git_buf_cstr(&merge_mode_path)));
  
  	cl_assert(git_path_exists(git_buf_cstr(&orig_head_path)));
  	cl_git_pass(p_unlink(git_buf_cstr(&orig_head_path)));
  
  	git_buf_free(&merge_head_path);
  	git_buf_free(&merge_msg_path);
  	git_buf_free(&merge_mode_path);
  	git_buf_free(&orig_head_path);
  }
  
  void test_reset_hard__reflog_is_correct(void)
  {
  	git_buf buf = GIT_BUF_INIT;
  	git_annotated_commit *annotated;
  	const char *exp_msg = "commit: Add a file which name should appear before the "
  		"\"subdir/\" folder while being dealt with by the treewalker";
  
  	reflog_check(repo, "HEAD", 3, "emeric.fermas@gmail.com", exp_msg);
  	reflog_check(repo, "refs/heads/master", 3, "emeric.fermas@gmail.com", exp_msg);
  
  	/* Branch not moving, no reflog entry */
  	cl_git_pass(git_revparse_single(&target, repo, "HEAD^{commit}"));
  	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD, NULL));
  	reflog_check(repo, "HEAD", 3, "emeric.fermas@gmail.com", exp_msg);
  	reflog_check(repo, "refs/heads/master", 3, "emeric.fermas@gmail.com", exp_msg);
  
  	git_object_free(target);
  
  	/* Moved branch, expect id in message */
  	cl_git_pass(git_revparse_single(&target, repo, "HEAD~^{commit}"));
  	cl_git_pass(git_buf_printf(&buf, "reset: moving to %s", git_oid_tostr_s(git_object_id(target))));
  	cl_git_pass(git_reset(repo, target, GIT_RESET_HARD, NULL));
  	reflog_check(repo, "HEAD", 4, NULL, git_buf_cstr(&buf));
  	reflog_check(repo, "refs/heads/master", 4, NULL, git_buf_cstr(&buf));
  
  	git_buf_free(&buf);
  
  	/* Moved branch, expect revspec in message */
  	exp_msg = "reset: moving to HEAD~^{commit}";
  	cl_git_pass(git_annotated_commit_from_revspec(&annotated, repo, "HEAD~^{commit}"));
  	cl_git_pass(git_reset_from_annotated(repo, annotated, GIT_RESET_HARD, NULL));
  	reflog_check(repo, "HEAD", 5, NULL, exp_msg);
  	reflog_check(repo, "refs/heads/master", 5, NULL, exp_msg);
  
  	git_annotated_commit_free(annotated);
  
  }
  
  void test_reset_hard__switch_file_to_dir(void)
  {
  	git_index_entry entry = {{ 0 }};
  	git_index *idx;
  	git_object *commit;
  	git_tree *tree;
  	git_signature *sig;
  	git_oid src_tree_id, tgt_tree_id;
  	git_oid src_id, tgt_id;
  
  	entry.mode = GIT_FILEMODE_BLOB;
  	cl_git_pass(git_oid_fromstr(&entry.id, "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391"));
  	cl_git_pass(git_index_new(&idx));
  	cl_git_pass(git_signature_now(&sig, "foo", "bar"));
  
  	/* Create the old tree */
  	entry.path = "README";
  	cl_git_pass(git_index_add(idx, &entry));
  	entry.path = "dir";
  	cl_git_pass(git_index_add(idx, &entry));
  
  	cl_git_pass(git_index_write_tree_to(&src_tree_id, idx, repo));
  	cl_git_pass(git_index_clear(idx));
  
  	cl_git_pass(git_tree_lookup(&tree, repo, &src_tree_id));
  	cl_git_pass(git_commit_create(&src_id, repo, NULL, sig, sig, NULL, "foo", tree, 0, NULL));
  	git_tree_free(tree);
  
  	/* Create the new tree */
  	entry.path = "README";
  	cl_git_pass(git_index_add(idx, &entry));
  	entry.path = "dir/FILE";
  	cl_git_pass(git_index_add(idx, &entry));
  
  	cl_git_pass(git_index_write_tree_to(&tgt_tree_id, idx, repo));
  	cl_git_pass(git_tree_lookup(&tree, repo, &tgt_tree_id));
  	cl_git_pass(git_commit_create(&tgt_id, repo, NULL, sig, sig, NULL, "foo", tree, 0, NULL));
  	git_tree_free(tree);
  	git_index_free(idx);
  	git_signature_free(sig);
  
  	/* Let's go to a known state of the src commit with the file named 'dir' */
  	cl_git_pass(git_object_lookup(&commit, repo, &src_id, GIT_OBJ_COMMIT));
  	cl_git_pass(git_reset(repo, commit, GIT_RESET_HARD, NULL));
  	git_object_free(commit);
  
  	/* And now we move over to the commit with the directory named 'dir' */
  	cl_git_pass(git_object_lookup(&commit, repo, &tgt_id, GIT_OBJ_COMMIT));
  	cl_git_pass(git_reset(repo, commit, GIT_RESET_HARD, NULL));
  	git_object_free(commit);
  }
  

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