thodg/libgit2/tests/win32/forbidden.c

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• Hash : 4be2aa57
  Author :
  Date : 2016-02-16T18:50:08
  

  win32: tests around handling forbidden paths Introduce a repository that contains some paths that were illegal on PC-DOS circa 1981 (like `aux`, `con`, `com1`) and that in a bizarre fit of retrocomputing, remain illegal on some "modern" computers, despite being "new technology". Introduce some aspirational tests that suggest that we should be able to cope with trees and indexes that contain paths that would be illegal on the filesystem, so that we can at least diff them. Further ensure that checkout will not write a repository with forbidden paths.

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• tests/win32/forbidden.c

• #include "clar_libgit2.h"
  
  #include "repository.h"
  #include "buffer.h"
  #include "submodule.h"
  
  static const char *repo_name = "win32-forbidden";
  static git_repository *repo;
  
  void test_win32_forbidden__initialize(void)
  {
  	repo = cl_git_sandbox_init(repo_name);
  }
  
  void test_win32_forbidden__cleanup(void)
  {
  	cl_git_sandbox_cleanup();
  }
  
  void test_win32_forbidden__can_open_index(void)
  {
  	git_index *index;
  	cl_git_pass(git_repository_index(&index, repo));
  	cl_assert_equal_i(7, git_index_entrycount(index));
  
  	/* ensure we can even write the unmodified index */
  	cl_git_pass(git_index_write(index));
  
  	git_index_free(index);
  }
  
  void test_win32_forbidden__can_add_forbidden_filename_with_entry(void)
  {
  	git_index *index;
  	git_index_entry entry = {{0}};
  
  	cl_git_pass(git_repository_index(&index, repo));
  
  	entry.path = "aux";
  	entry.mode = GIT_FILEMODE_BLOB;
  	git_oid_fromstr(&entry.id, "da623abd956bb2fd8052c708c7ed43f05d192d37");
  
  	cl_git_pass(git_index_add(index, &entry));
  
  	git_index_free(index);
  }
  
  void test_win32_forbidden__cannot_add_dot_git_even_with_entry(void)
  {
  	git_index *index;
  	git_index_entry entry = {{0}};
  
  	cl_git_pass(git_repository_index(&index, repo));
  
  	entry.path = "foo/.git";
  	entry.mode = GIT_FILEMODE_BLOB;
  	git_oid_fromstr(&entry.id, "da623abd956bb2fd8052c708c7ed43f05d192d37");
  
  	cl_git_fail(git_index_add(index, &entry));
  
  	git_index_free(index);
  }
  
  void test_win32_forbidden__cannot_add_forbidden_filename_from_filesystem(void)
  {
  	git_index *index;
  
  	/* since our function calls are very low-level, we can create `aux.`,
  	 * but we should not be able to add it to the index
  	 */
  	cl_git_pass(git_repository_index(&index, repo));
  	cl_git_write2file("win32-forbidden/aux.", "foo\n", 4, O_RDWR | O_CREAT, 0666);
  
  #ifdef GIT_WIN32
  	cl_git_fail(git_index_add_bypath(index, "aux."));
  #else
  	cl_git_pass(git_index_add_bypath(index, "aux."));
  #endif
  
  	cl_must_pass(p_unlink("win32-forbidden/aux."));
  	git_index_free(index);
  }
  
  static int dummy_submodule_cb(
  	git_submodule *sm, const char *name, void *payload)
  {
  	GIT_UNUSED(sm);
  	GIT_UNUSED(name);
  	GIT_UNUSED(payload);
  	return 0;
  }
  
  void test_win32_forbidden__can_diff_tree_to_index(void)
  {
  	git_diff *diff;
  	git_tree *tree;
  
  	cl_git_pass(git_repository_head_tree(&tree, repo));
  	cl_git_pass(git_diff_tree_to_index(&diff, repo, tree, NULL, NULL));
  	cl_assert_equal_i(0, git_diff_num_deltas(diff));
  	git_diff_free(diff);
  	git_tree_free(tree);
  }
  
  void test_win32_forbidden__can_diff_tree_to_tree(void)
  {
  	git_diff *diff;
  	git_tree *tree;
  
  	cl_git_pass(git_repository_head_tree(&tree, repo));
  	cl_git_pass(git_diff_tree_to_tree(&diff, repo, tree, tree, NULL));
  	cl_assert_equal_i(0, git_diff_num_deltas(diff));
  	git_diff_free(diff);
  	git_tree_free(tree);
  }
  
  void test_win32_forbidden__can_diff_index_to_workdir(void)
  {
  	git_index *index;
  	git_diff *diff;
  	const git_diff_delta *delta;
  	git_tree *tree;
  	size_t i;
  
  	cl_git_pass(git_repository_index(&index, repo));
  	cl_git_pass(git_repository_head_tree(&tree, repo));
  	cl_git_pass(git_diff_index_to_workdir(&diff, repo, index, NULL));
  
  	for (i = 0; i < git_diff_num_deltas(diff); i++) {
  		delta = git_diff_get_delta(diff, i);
  		cl_assert_equal_i(GIT_DELTA_DELETED, delta->status);
  	}
  
  	git_diff_free(diff);
  	git_tree_free(tree);
  	git_index_free(index);
  }
  
  void test_win32_forbidden__checking_out_forbidden_index_fails(void)
  {
  #ifdef GIT_WIN32
  	git_index *index;
  	git_checkout_options opts = GIT_CHECKOUT_OPTIONS_INIT;
  	git_diff *diff;
  	const git_diff_delta *delta;
  	git_tree *tree;
  	size_t num_deltas, i;
  
  	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
  
  	cl_git_pass(git_repository_index(&index, repo));
  	cl_git_fail(git_checkout_index(repo, index, &opts));
  
  	cl_git_pass(git_repository_head_tree(&tree, repo));
  	cl_git_pass(git_diff_index_to_workdir(&diff, repo, index, NULL));
  
  	num_deltas = git_diff_num_deltas(diff);
  
  	cl_assert(num_deltas > 0);
  
  	for (i = 0; i < num_deltas; i++) {
  		delta = git_diff_get_delta(diff, i);
  		cl_assert_equal_i(GIT_DELTA_DELETED, delta->status);
  	}
  
  	git_diff_free(diff);
  	git_tree_free(tree);
  	git_index_free(index);
  #endif
  }
  
  void test_win32_forbidden__can_query_submodules(void)
  {
  	cl_git_pass(git_submodule_foreach(repo, dummy_submodule_cb, NULL));
  }
  
  void test_win32_forbidden__can_blame_file(void)
  {
  	git_blame *blame;
  
  	cl_git_pass(git_blame_file(&blame, repo, "aux", NULL));
  	git_blame_free(blame);
  }
  

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