thodg/libgit2/tests/libgit2/patch/parse.c

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• Hash : 3344fddc
  Author :
  Date : 2021-11-16T23:29:22
  

  refactor: `tests` is now `tests/libgit2`
  
  Like we want to separate libgit2 and utility source code, we want to
  separate libgit2 and utility tests.  Start by moving all the tests into
  libgit2.
  

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• tests/libgit2/patch/parse.c

• #include "clar_libgit2.h"
  #include "patch.h"
  #include "patch_parse.h"
  
  #include "patch_common.h"
  
  static void ensure_patch_validity(git_patch *patch)
  {
  	const git_diff_delta *delta;
  	char idstr[GIT_OID_HEXSZ+1] = {0};
  
  	cl_assert((delta = git_patch_get_delta(patch)) != NULL);
  	cl_assert_equal_i(2, delta->nfiles);
  
  	cl_assert_equal_s(delta->old_file.path, "file.txt");
  	cl_assert(delta->old_file.mode == GIT_FILEMODE_BLOB);
  	cl_assert_equal_i(7, delta->old_file.id_abbrev);
  	git_oid_nfmt(idstr, delta->old_file.id_abbrev, &delta->old_file.id);
  	cl_assert_equal_s(idstr, "9432026");
  	cl_assert_equal_i(0, delta->old_file.size);
  
  	cl_assert_equal_s(delta->new_file.path, "file.txt");
  	cl_assert(delta->new_file.mode == GIT_FILEMODE_BLOB);
  	cl_assert_equal_i(7, delta->new_file.id_abbrev);
  	git_oid_nfmt(idstr, delta->new_file.id_abbrev, &delta->new_file.id);
  	cl_assert_equal_s(idstr, "cd8fd12");
  	cl_assert_equal_i(0, delta->new_file.size);
  }
  
  static void ensure_identical_patch_inout(const char *content)
  {
  	git_buf buf = GIT_BUF_INIT;
  	git_patch *patch;
  
  	cl_git_pass(git_patch_from_buffer(&patch, content, strlen(content), NULL));
  	cl_git_pass(git_patch_to_buf(&buf, patch));
  	cl_assert_equal_strn(buf.ptr, content, strlen(content));
  
  	git_patch_free(patch);
  	git_buf_dispose(&buf);
  }
  
  void test_patch_parse__original_to_change_middle(void)
  {
  	git_patch *patch;
  
  	cl_git_pass(git_patch_from_buffer(
  		&patch, PATCH_ORIGINAL_TO_CHANGE_MIDDLE,
  		strlen(PATCH_ORIGINAL_TO_CHANGE_MIDDLE), NULL));
  	ensure_patch_validity(patch);
  	git_patch_free(patch);
  }
  
  void test_patch_parse__leading_and_trailing_garbage(void)
  {
  	git_patch *patch;
  	const char *leading = "This is some leading garbage.\n"
  		"Maybe it's email headers?\n"
  		"\n"
  		PATCH_ORIGINAL_TO_CHANGE_MIDDLE;
  	const char *trailing = PATCH_ORIGINAL_TO_CHANGE_MIDDLE
  		"\n"
  		"This is some trailing garbage.\n"
  		"Maybe it's an email signature?\n";
  	const char *both = "Here's some leading garbage\n"
  		PATCH_ORIGINAL_TO_CHANGE_MIDDLE
  		"And here's some trailing.\n";
  
  	cl_git_pass(git_patch_from_buffer(&patch, leading, strlen(leading),
  		NULL));
  	ensure_patch_validity(patch);
  	git_patch_free(patch);
  
  	cl_git_pass(git_patch_from_buffer(&patch, trailing, strlen(trailing),
  		NULL));
  	ensure_patch_validity(patch);
  	git_patch_free(patch);
  
  	cl_git_pass(git_patch_from_buffer(&patch, both, strlen(both),
  		NULL));
  	ensure_patch_validity(patch);
  	git_patch_free(patch);
  }
  
  void test_patch_parse__nonpatches_fail_with_notfound(void)
  {
  	git_patch *patch;
  
  	cl_git_fail_with(GIT_ENOTFOUND,
  		git_patch_from_buffer(&patch, PATCH_NOT_A_PATCH,
  		strlen(PATCH_NOT_A_PATCH), NULL));
  }
  
  void test_patch_parse__invalid_patches_fails(void)
  {
  	git_patch *patch;
  
  	cl_git_fail_with(GIT_ERROR,
  		git_patch_from_buffer(&patch, PATCH_CORRUPT_GIT_HEADER,
  		strlen(PATCH_CORRUPT_GIT_HEADER), NULL));
  	cl_git_fail_with(GIT_ERROR,
  		git_patch_from_buffer(&patch,
  		PATCH_CORRUPT_MISSING_NEW_FILE,
  		strlen(PATCH_CORRUPT_MISSING_NEW_FILE), NULL));
  	cl_git_fail_with(GIT_ERROR,
  		git_patch_from_buffer(&patch,
  		PATCH_CORRUPT_MISSING_OLD_FILE,
  		strlen(PATCH_CORRUPT_MISSING_OLD_FILE), NULL));
  	cl_git_fail_with(GIT_ERROR,
  		git_patch_from_buffer(&patch, PATCH_CORRUPT_NO_CHANGES,
  		strlen(PATCH_CORRUPT_NO_CHANGES), NULL));
  	cl_git_fail_with(GIT_ERROR,
  		git_patch_from_buffer(&patch,
  		PATCH_CORRUPT_MISSING_HUNK_HEADER,
  		strlen(PATCH_CORRUPT_MISSING_HUNK_HEADER), NULL));
  }
  
  void test_patch_parse__no_newline_at_end_of_new_file(void)
  {
  	ensure_identical_patch_inout(PATCH_APPEND_NO_NL);
  }
  
  void test_patch_parse__no_newline_at_end_of_old_file(void)
  {
  	ensure_identical_patch_inout(PATCH_APPEND_NO_NL_IN_OLD_FILE);
  }
  
  void test_patch_parse__files_with_whitespaces_succeeds(void)
  {
  	ensure_identical_patch_inout(PATCH_NAME_WHITESPACE);
  }
  
  void test_patch_parse__lifetime_of_patch_does_not_depend_on_buffer(void)
  {
  	git_str diff = GIT_STR_INIT;
  	git_buf rendered = GIT_BUF_INIT;
  	git_patch *patch;
  
  	cl_git_pass(git_str_sets(&diff, PATCH_ORIGINAL_TO_CHANGE_MIDDLE));
  	cl_git_pass(git_patch_from_buffer(&patch, diff.ptr, diff.size, NULL));
  	git_str_dispose(&diff);
  
  	cl_git_pass(git_patch_to_buf(&rendered, patch));
  	cl_assert_equal_s(PATCH_ORIGINAL_TO_CHANGE_MIDDLE, rendered.ptr);
  	git_buf_dispose(&rendered);
  
  	cl_git_pass(git_patch_to_buf(&rendered, patch));
  	cl_assert_equal_s(PATCH_ORIGINAL_TO_CHANGE_MIDDLE, rendered.ptr);
  	git_buf_dispose(&rendered);
  
  	git_patch_free(patch);
  }
  
  void test_patch_parse__binary_file_with_missing_paths(void)
  {
  	git_patch *patch;
  	cl_git_fail(git_patch_from_buffer(&patch, PATCH_BINARY_FILE_WITH_MISSING_PATHS,
  					  strlen(PATCH_BINARY_FILE_WITH_MISSING_PATHS), NULL));
  }
  
  void test_patch_parse__binary_file_with_whitespace_paths(void)
  {
  	git_patch *patch;
  	cl_git_fail(git_patch_from_buffer(&patch, PATCH_BINARY_FILE_WITH_WHITESPACE_PATHS,
  					  strlen(PATCH_BINARY_FILE_WITH_WHITESPACE_PATHS), NULL));
  }
  
  void test_patch_parse__binary_file_with_empty_quoted_paths(void)
  {
  	git_patch *patch;
  	cl_git_fail(git_patch_from_buffer(&patch, PATCH_BINARY_FILE_WITH_QUOTED_EMPTY_PATHS,
  					  strlen(PATCH_BINARY_FILE_WITH_QUOTED_EMPTY_PATHS), NULL));
  }
  
  void test_patch_parse__binary_file_path_with_spaces(void)
  {
  	git_patch *patch;
  	cl_git_fail(git_patch_from_buffer(&patch, PATCH_BINARY_FILE_PATH_WITH_SPACES,
  					  strlen(PATCH_BINARY_FILE_PATH_WITH_SPACES), NULL));
  }
  
  void test_patch_parse__binary_file_path_without_body_paths(void)
  {
  	git_patch *patch;
  	cl_git_fail(git_patch_from_buffer(&patch, PATCH_BINARY_FILE_PATH_WITHOUT_BODY_PATHS,
  					  strlen(PATCH_BINARY_FILE_PATH_WITHOUT_BODY_PATHS), NULL));
  }
  
  void test_patch_parse__binary_file_with_truncated_delta(void)
  {
  	git_patch *patch;
  	cl_git_fail(git_patch_from_buffer(&patch, PATCH_BINARY_FILE_WITH_TRUNCATED_DELTA,
  					  strlen(PATCH_BINARY_FILE_WITH_TRUNCATED_DELTA), NULL));
  	cl_assert_equal_s(git_error_last()->message, "truncated binary data at line 5");
  }
  
  void test_patch_parse__memory_leak_on_multiple_paths(void)
  {
  	git_patch *patch;
  	cl_git_fail(git_patch_from_buffer(&patch, PATCH_MULTIPLE_OLD_PATHS, strlen(PATCH_MULTIPLE_OLD_PATHS), NULL));
  }
  
  void test_patch_parse__truncated_no_newline_at_end_of_file(void)
  {
  	size_t len = strlen(PATCH_APPEND_NO_NL) - strlen("at end of file\n");
  	const git_diff_line *line;
  	git_patch *patch;
  
  	cl_git_pass(git_patch_from_buffer(&patch, PATCH_APPEND_NO_NL, len, NULL));
  	cl_git_pass(git_patch_get_line_in_hunk(&line, patch, 0, 4));
  	cl_assert_equal_s(line->content, "\\ No newline ");
  
  	git_patch_free(patch);
  }
  
  void test_patch_parse__line_number_overflow(void)
  {
  	git_patch *patch;
  	cl_git_fail(git_patch_from_buffer(&patch, PATCH_INTMAX_NEW_LINES, strlen(PATCH_INTMAX_NEW_LINES), NULL));
  	git_patch_free(patch);
  }
  

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