text: #include "clar_libgit2.h"
  #include "git2/sys/filter.h"
  #include "buffer.h"
  
  static git_repository *g_repo = NULL;
  
  void test_filter_crlf__initialize(void)
  {
  	g_repo = cl_git_sandbox_init("crlf");
  
  	cl_git_mkfile("crlf/.gitattributes",
  		"*.txt text\n*.bin binary\n*.crlf text eol=crlf\n*.lf text eol=lf\n");
  
  	cl_repo_set_bool(g_repo, "core.autocrlf", true);
  }
  
  void test_filter_crlf__cleanup(void)
  {
  	cl_git_sandbox_cleanup();
  }
  
  void test_filter_crlf__to_worktree(void)
  {
  	git_filter_list *fl;
  	git_filter *crlf;
  	git_buf in = { 0 }, out = { 0 };
  
  	cl_git_pass(git_filter_list_new(
  		&fl, g_repo, GIT_FILTER_TO_WORKTREE, 0));
  
  	crlf = git_filter_lookup(GIT_FILTER_CRLF);
  	cl_assert(crlf != NULL);
  
  	cl_git_pass(git_filter_list_push(fl, crlf, NULL));
  
  	in.ptr = "Some text\nRight here\n";
  	in.size = strlen(in.ptr);
  
  	cl_git_pass(git_filter_list_apply_to_data(&out, fl, &in));
  
  #ifdef GIT_WIN32
  	cl_assert_equal_s("Some text\r\nRight here\r\n", out.ptr);
  #else
  	cl_assert_equal_s("Some text\nRight here\n", out.ptr);
  #endif
  
  	git_filter_list_free(fl);
  	git_buf_free(&out);
  }
  
  void test_filter_crlf__to_odb(void)
  {
  	git_filter_list *fl;
  	git_filter *crlf;
  	git_buf in = { 0 }, out = { 0 };
  
  	cl_git_pass(git_filter_list_new(
  		&fl, g_repo, GIT_FILTER_TO_ODB, 0));
  
  	crlf = git_filter_lookup(GIT_FILTER_CRLF);
  	cl_assert(crlf != NULL);
  
  	cl_git_pass(git_filter_list_push(fl, crlf, NULL));
  
  	in.ptr = "Some text\r\nRight here\r\n";
  	in.size = strlen(in.ptr);
  
  	cl_git_pass(git_filter_list_apply_to_data(&out, fl, &in));
  
  	cl_assert_equal_s("Some text\nRight here\n", out.ptr);
  
  	git_filter_list_free(fl);
  	git_buf_free(&out);
  }
  
  void test_filter_crlf__with_safecrlf(void)
  {
  	git_filter_list *fl;
  	git_filter *crlf;
  	git_buf in = {0}, out = GIT_BUF_INIT;
  
  	cl_repo_set_bool(g_repo, "core.safecrlf", true);
  
  	cl_git_pass(git_filter_list_new(
  		&fl, g_repo, GIT_FILTER_TO_ODB, 0));
  
  	crlf = git_filter_lookup(GIT_FILTER_CRLF);
  	cl_assert(crlf != NULL);
  
  	cl_git_pass(git_filter_list_push(fl, crlf, NULL));
  
  	/* Normalized \r\n succeeds with safecrlf */
  	in.ptr = "Normal\r\nCRLF\r\nline-endings.\r\n";
  	in.size = strlen(in.ptr);
  
  	cl_git_pass(git_filter_list_apply_to_data(&out, fl, &in));
  	cl_assert_equal_s("Normal\nCRLF\nline-endings.\n", out.ptr);
  
  	/* Mix of line endings fails with safecrlf */
  	in.ptr = "Mixed\nup\r\nLF\nand\r\nCRLF\nline-endings.\r\n";
  	in.size = strlen(in.ptr);
  
  	cl_git_fail(git_filter_list_apply_to_data(&out, fl, &in));
  	cl_assert_equal_i(giterr_last()->klass, GITERR_FILTER);
  
  	/* Normalized \n fails with safecrlf */
  	in.ptr = "Normal\nLF\nonly\nline-endings.\n";
  	in.size = strlen(in.ptr);
  
  	cl_git_fail(git_filter_list_apply_to_data(&out, fl, &in));
  	cl_assert_equal_i(giterr_last()->klass, GITERR_FILTER);
  
  	git_filter_list_free(fl);
  	git_buf_free(&out);
  }
  
  void test_filter_crlf__with_safecrlf_and_unsafe_allowed(void)
  {
  	git_filter_list *fl;
  	git_filter *crlf;
  	git_buf in = {0}, out = GIT_BUF_INIT;
  
  	cl_repo_set_bool(g_repo, "core.safecrlf", true);
  
  	cl_git_pass(git_filter_list_new(
  		&fl, g_repo, GIT_FILTER_TO_ODB, GIT_FILTER_OPT_ALLOW_UNSAFE));
  
  	crlf = git_filter_lookup(GIT_FILTER_CRLF);
  	cl_assert(crlf != NULL);
  
  	cl_git_pass(git_filter_list_push(fl, crlf, NULL));
  
  	/* Normalized \r\n succeeds with safecrlf */
  	in.ptr = "Normal\r\nCRLF\r\nline-endings.\r\n";
  	in.size = strlen(in.ptr);
  
  	cl_git_pass(git_filter_list_apply_to_data(&out, fl, &in));
  	cl_assert_equal_s("Normal\nCRLF\nline-endings.\n", out.ptr);
  
  	/* Mix of line endings fails with safecrlf, but allowed to pass */
  	in.ptr = "Mixed\nup\r\nLF\nand\r\nCRLF\nline-endings.\r\n";
  	in.size = strlen(in.ptr);
  
  	cl_git_pass(git_filter_list_apply_to_data(&out, fl, &in));
  	/* TODO: check for warning */
  	cl_assert_equal_s("Mixed\nup\nLF\nand\nCRLF\nline-endings.\n", out.ptr);
  
  	/* Normalized \n fails with safecrlf, but allowed to pass */
  	in.ptr = "Normal\nLF\nonly\nline-endings.\n";
  	in.size = strlen(in.ptr);
  
  	cl_git_pass(git_filter_list_apply_to_data(&out, fl, &in));
  	/* TODO: check for warning */
  	cl_assert_equal_s("Normal\nLF\nonly\nline-endings.\n", out.ptr);
  
  	git_filter_list_free(fl);
  	git_buf_free(&out);
  }
  
  void test_filter_crlf__no_safecrlf(void)
  {
  	git_filter_list *fl;
  	git_filter *crlf;
  	git_buf in = {0}, out = GIT_BUF_INIT;
  
  	cl_git_pass(git_filter_list_new(
  		&fl, g_repo, GIT_FILTER_TO_ODB, 0));
  
  	crlf = git_filter_lookup(GIT_FILTER_CRLF);
  	cl_assert(crlf != NULL);
  
  	cl_git_pass(git_filter_list_push(fl, crlf, NULL));
  
  	/* Normalized \r\n succeeds with safecrlf */
  	in.ptr = "Normal\r\nCRLF\r\nline-endings.\r\n";
  	in.size = strlen(in.ptr);
  
  	cl_git_pass(git_filter_list_apply_to_data(&out, fl, &in));
  	cl_assert_equal_s("Normal\nCRLF\nline-endings.\n", out.ptr);
  
  	/* Mix of line endings fails with safecrlf */
  	in.ptr = "Mixed\nup\r\nLF\nand\r\nCRLF\nline-endings.\r\n";
  	in.size = strlen(in.ptr);
  
  	cl_git_pass(git_filter_list_apply_to_data(&out, fl, &in));
  	cl_assert_equal_s("Mixed\nup\nLF\nand\nCRLF\nline-endings.\n", out.ptr);
  
  	/* Normalized \n fails with safecrlf */
  	in.ptr = "Normal\nLF\nonly\nline-endings.\n";
  	in.size = strlen(in.ptr);
  
  	cl_git_pass(git_filter_list_apply_to_data(&out, fl, &in));
  	cl_assert_equal_s("Normal\nLF\nonly\nline-endings.\n", out.ptr);
  
  	git_filter_list_free(fl);
  	git_buf_free(&out);
  }
  
  