Added some tests for issue #1397

Signed-off-by: Sven Strickroth <email@cs-ware.de>

tests-clar/checkout/crlf.c

@@ -35,6 +35,7 @@ void test_checkout_crlf__detect_crlf_autocrlf_false(void)
 	git_checkout_head(g_repo, &opts);
 
 	test_file_contents("./crlf/all-lf", ALL_LF_TEXT_RAW);
+	test_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
 #endif
 }
 
@@ -55,6 +56,9 @@ void test_checkout_crlf__autocrlf_false_index_size_is_unfiltered_size(void)
 	cl_assert((entry = git_index_get_bypath(index, "all-lf", 0)) != NULL);
 	cl_assert(entry->file_size == strlen(ALL_LF_TEXT_RAW));
 
+	cl_assert((entry = git_index_get_bypath(index, "all-crlf", 0)) != NULL);
+	cl_assert(entry->file_size == strlen(ALL_CRLF_TEXT_RAW));
+
 	git_index_free(index);
 #endif
 }
@@ -70,6 +74,7 @@ void test_checkout_crlf__detect_crlf_autocrlf_true(void)
 	git_checkout_head(g_repo, &opts);
 
 	test_file_contents("./crlf/all-lf", ALL_LF_TEXT_AS_CRLF);
+	test_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
 #endif
 }
 
@@ -90,6 +95,9 @@ void test_checkout_crlf__autocrlf_true_index_size_is_filtered_size(void)
 	cl_assert((entry = git_index_get_bypath(index, "all-lf", 0)) != NULL);
 	cl_assert(entry->file_size == strlen(ALL_LF_TEXT_AS_CRLF));
 
+	cl_assert((entry = git_index_get_bypath(index, "all-crlf", 0)) != NULL);
+	cl_assert(entry->file_size == strlen(ALL_CRLF_TEXT_RAW));
+
 	git_index_free(index);
 #endif
 }

tests-clar/checkout/index.c

@@ -488,3 +488,20 @@ void test_checkout_index__can_checkout_a_newly_initialized_repository(void)
 
 	cl_git_pass(git_checkout_index(g_repo, NULL, NULL));
 }
+
+void test_checkout_index__issue_1397(void)
+{
+	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
+
+	test_checkout_index__cleanup();
+
+	g_repo = cl_git_sandbox_init("issue_1397");
+
+	set_core_autocrlf_to(true);
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_git_pass(git_checkout_index(g_repo, NULL, &opts));
+
+	test_file_contents("./issue_1397/crlf_file.txt", "first line\r\nsecond line\r\nboth with crlf");
+}

tests-clar/checkout/tree.c

@@ -481,3 +481,37 @@ void test_checkout_tree__can_checkout_with_last_workdir_item_missing(void)
 	git_commit_free(commit);
 	git_index_free(index);
 }
+
+void test_checkout_tree__issue_1397(void)
+{
+	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
+	git_config *cfg;
+	const char *partial_oid = "8a7ef04";
+	size_t len = strlen(partial_oid);
+	git_oid oid;
+	git_object *obj = NULL;
+	git_tree *tree = NULL;
+
+	g_repo = cl_git_sandbox_init("issue_1397");
+
+	cl_git_pass(git_repository_config(&cfg, g_repo));
+	cl_git_pass(git_config_set_bool(cfg, "core.autocrlf", true));
+	git_config_free(cfg);
+
+	if (git_oid_fromstrn(&oid, partial_oid, len) == 0)
+		git_object_lookup_prefix(&obj, g_repo, &oid, len, GIT_OBJ_ANY);
+	cl_assert(obj);
+	cl_assert(git_object_type(obj) == GIT_OBJ_COMMIT);
+	cl_git_pass(git_commit_tree(&tree, (git_commit *)obj));
+	git_object_free(obj);
+
+	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
+
+	cl_assert(tree != NULL);
+
+	git_checkout_tree(g_repo, (git_object *)tree, &opts);
+
+	test_file_contents("./issue_1397/crlf_file.txt", "first line\r\nsecond line\r\nboth with crlf");
+
+	git_tree_free(tree);
+}

tests-clar/diff/tree.c

@@ -431,3 +431,28 @@ void test_diff_tree__regular_blob_mode_changed_to_executable_file(void)
 	cl_assert_equal_i(0, expect.file_status[GIT_DELTA_ADDED]);
 	cl_assert_equal_i(0, expect.file_status[GIT_DELTA_TYPECHANGE]);
 }
+
+void test_diff_tree__issue_1397(void)
+{
+	// this test shows, that it is not needed
+	git_config *cfg;
+	g_repo = cl_git_sandbox_init("issue_1397");
+
+	cl_git_pass(git_repository_config(&cfg, g_repo));
+	cl_git_pass(git_config_set_bool(cfg, "core.autocrlf", true));
+	git_config_free(cfg);
+
+	cl_assert((a = resolve_commit_oid_to_tree(g_repo, "8a7ef04")) != NULL);
+	cl_assert((b = resolve_commit_oid_to_tree(g_repo, "7f483a7")) != NULL);
+
+	cl_git_pass(git_diff_tree_to_tree(&diff, g_repo, a, b, &opts));
+
+	cl_git_pass(git_diff_foreach(
+		diff, diff_file_cb, diff_hunk_cb, diff_line_cb, &expect));
+
+	cl_assert_equal_i(1, expect.files);
+	cl_assert_equal_i(0, expect.file_status[GIT_DELTA_DELETED]);
+	cl_assert_equal_i(1, expect.file_status[GIT_DELTA_MODIFIED]);
+	cl_assert_equal_i(0, expect.file_status[GIT_DELTA_ADDED]);
+	cl_assert_equal_i(0, expect.file_status[GIT_DELTA_TYPECHANGE]);
+}

tests-clar/diff/workdir.c

@@ -1084,3 +1084,182 @@ void test_diff_workdir__can_diff_empty_file(void)
 	git_diff_patch_free(patch);
 	git_diff_list_free(diff);
 }
+
+static void set_config_entry_to(const char *entry_name, bool value)
+{
+	git_config *cfg;
+
+	cl_git_pass(git_repository_config(&cfg, g_repo));
+	cl_git_pass(git_config_set_bool(cfg, entry_name, value));
+
+	git_config_free(cfg);
+}
+
+static void set_core_autocrlf_to(bool value)
+{
+	set_config_entry_to("core.autocrlf", value);
+}
+
+void test_diff_workdir__to_index_issue_1397(void)
+{
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
+	git_diff_list *diff = NULL;
+	diff_expects exp;
+	int use_iterator;
+
+	g_repo = cl_git_sandbox_init("issue_1397");
+
+	set_core_autocrlf_to(true);
+
+	opts.context_lines = 3;
+	opts.interhunk_lines = 1;
+
+	cl_git_pass(git_diff_index_to_workdir(&diff, g_repo, NULL, &opts));
+
+	for (use_iterator = 0; use_iterator <= 1; use_iterator++) {
+		memset(&exp, 0, sizeof(exp));
+
+		if (use_iterator)
+			cl_git_pass(diff_foreach_via_iterator(
+				diff, diff_file_cb, diff_hunk_cb, diff_line_cb, &exp));
+		else
+			cl_git_pass(git_diff_foreach(
+				diff, diff_file_cb, diff_hunk_cb, diff_line_cb, &exp));
+
+		cl_assert_equal_i(0, exp.files);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_ADDED]);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_DELETED]);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_MODIFIED]);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_IGNORED]);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_UNTRACKED]);
+
+		cl_assert_equal_i(0, exp.hunks);
+
+		cl_assert_equal_i(0, exp.lines);
+		cl_assert_equal_i(0, exp.line_ctxt);
+		cl_assert_equal_i(0, exp.line_adds);
+		cl_assert_equal_i(0, exp.line_dels);
+	}
+
+	git_diff_list_free(diff);
+	diff = NULL;
+	memset(&exp, 0, sizeof(exp));
+
+	cl_git_rewritefile("issue_1397/crlf_file.txt", "first line\r\nsecond line modified\r\nboth with crlf");
+
+	cl_git_pass(git_diff_index_to_workdir(&diff, g_repo, NULL, &opts));
+
+	for (use_iterator = 0; use_iterator <= 1; use_iterator++) {
+		memset(&exp, 0, sizeof(exp));
+
+		if (use_iterator)
+			cl_git_pass(diff_foreach_via_iterator(
+				diff, diff_file_cb, diff_hunk_cb, diff_line_cb, &exp));
+		else
+			cl_git_pass(git_diff_foreach(
+				diff, diff_file_cb, diff_hunk_cb, diff_line_cb, &exp));
+
+		cl_assert_equal_i(1, exp.files);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_ADDED]);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_DELETED]);
+		cl_assert_equal_i(1, exp.file_status[GIT_DELTA_MODIFIED]);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_IGNORED]);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_UNTRACKED]);
+
+		cl_assert_equal_i(1, exp.hunks);
+
+		cl_assert_equal_i(5, exp.lines);
+		cl_assert_equal_i(3, exp.line_ctxt);
+		cl_assert_equal_i(1, exp.line_adds);
+		cl_assert_equal_i(1, exp.line_dels);
+	}
+
+	git_diff_list_free(diff);
+}
+
+void test_diff_workdir__to_tree_issue_1397(void)
+{
+	/* grabbed a couple of commit oids from the history of the attr repo */
+	const char *a_commit = "51883ad"; /* the current HEAD */
+	git_tree *a;
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
+	git_diff_list *diff = NULL;
+	git_diff_list *diff2 = NULL;
+	diff_expects exp;
+	int use_iterator;
+
+	g_repo = cl_git_sandbox_init("issue_1397");
+
+	set_core_autocrlf_to(true);
+
+	a = resolve_commit_oid_to_tree(g_repo, a_commit);
+
+	opts.context_lines = 3;
+	opts.interhunk_lines = 1;
+
+	cl_git_pass(git_diff_tree_to_workdir(&diff, g_repo, a, &opts));
+
+	for (use_iterator = 0; use_iterator <= 1; use_iterator++) {
+		memset(&exp, 0, sizeof(exp));
+
+		if (use_iterator)
+			cl_git_pass(diff_foreach_via_iterator(
+				diff, diff_file_cb, diff_hunk_cb, diff_line_cb, &exp));
+		else
+			cl_git_pass(git_diff_foreach(
+				diff, diff_file_cb, diff_hunk_cb, diff_line_cb, &exp));
+
+		cl_assert_equal_i(0, exp.files);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_ADDED]);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_DELETED]);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_MODIFIED]);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_IGNORED]);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_UNTRACKED]);
+	}
+
+	/* Since there is no git diff equivalent, let's just assume that the
+	 * text diffs produced by git_diff_foreach are accurate here.  We will
+	 * do more apples-to-apples test comparison below.
+	 */
+
+	git_diff_list_free(diff);
+	diff = NULL;
+	memset(&exp, 0, sizeof(exp));
+
+	/* This is a compatible emulation of "git diff <sha>" which looks like
+	 * a workdir to tree diff (even though it is not really).  This is what
+	 * you would get from "git diff --name-status 26a125ee1bf"
+	 */
+	cl_git_pass(git_diff_tree_to_index(&diff, g_repo, a, NULL, &opts));
+	cl_git_pass(git_diff_index_to_workdir(&diff2, g_repo, NULL, &opts));
+	cl_git_pass(git_diff_merge(diff, diff2));
+	git_diff_list_free(diff2);
+
+	for (use_iterator = 0; use_iterator <= 1; use_iterator++) {
+		memset(&exp, 0, sizeof(exp));
+
+		if (use_iterator)
+			cl_git_pass(diff_foreach_via_iterator(
+				diff, diff_file_cb, diff_hunk_cb, diff_line_cb, &exp));
+		else
+			cl_git_pass(git_diff_foreach(
+				diff, diff_file_cb, diff_hunk_cb, diff_line_cb, &exp));
+
+		cl_assert_equal_i(0, exp.files);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_ADDED]);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_DELETED]);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_MODIFIED]);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_IGNORED]);
+		cl_assert_equal_i(0, exp.file_status[GIT_DELTA_UNTRACKED]);
+
+		cl_assert_equal_i(0, exp.hunks);
+
+		cl_assert_equal_i(0, exp.lines);
+		cl_assert_equal_i(0, exp.line_ctxt);
+		cl_assert_equal_i(0, exp.line_adds);
+		cl_assert_equal_i(0, exp.line_dels);
+	}
+
+	git_diff_list_free(diff);
+	git_tree_free(a);
+}

tests-clar/index/tests.c

@@ -251,6 +251,46 @@ void test_index_tests__add(void)
 	git_repository_free(repo);
 }
 
+void test_index_tests__add_issue_1397(void)
+{
+	git_index *index;
+	git_config *cfg;
+	git_repository *repo;
+	const git_index_entry *entry;
+	git_oid id1;
+
+	cl_set_cleanup(&cleanup_myrepo, NULL);
+
+	repo = cl_git_sandbox_init("issue_1397");
+
+	cl_git_pass(git_repository_config(&cfg, repo));
+	cl_git_pass(git_config_set_bool(cfg, "core.autocrlf", true));
+	git_config_free(cfg);
+
+	/* Ensure we're the only guy in the room */
+	cl_git_pass(git_repository_index(&index, repo));
+
+	/* Store the expected hash of the file/blob
+	 * This has been generated by executing the following
+	 * $ git hash-object crlf_file.txt
+	 */
+	cl_git_pass(git_oid_fromstr(&id1, "8312e0889a9cbab77c732b6bc39b51a683e3a318"));
+
+	/* Make sure the initial SHA-1 is correct */
+	cl_assert((entry = git_index_get_bypath(index, "crlf_file.txt", 0)) != NULL);
+	cl_assert(git_oid_cmp(&id1, &entry->oid) == 0);
+
+	/* Update the index */
+	cl_git_pass(git_index_add_bypath(index, "crlf_file.txt"));
+
+	/* Check the new SHA-1 */
+	cl_assert((entry = git_index_get_bypath(index, "crlf_file.txt", 0)) != NULL);
+	cl_assert(git_oid_cmp(&id1, &entry->oid) == 0);
+
+	git_index_free(index);
+	git_repository_free(repo);
+}
+
 void test_index_tests__add_bypath_to_a_bare_repository_returns_EBAREPO(void)
 {
 	git_repository *bare_repo;

tests-clar/resources/issue_1397/.gitted/HEAD

@@ -0,0 +1 @@
+ref: refs/heads/master

tests-clar/resources/issue_1397/.gitted/config

@@ -0,0 +1,6 @@
+[core]
+	bare = false
+	repositoryformatversion = 0
+	filemode = false
+	logallrefupdates = true
+	ignorecase = true

tests-clar/resources/issue_1397/.gitted/objects/7f/483a738f867e5b21c8f377d70311f011eb48b5

@@ -0,0 +1,3 @@
+x
<01>ÎQNÃ0€ažs
+¿£!'nâTBÓî°¸ŽC+Öe\Äv€ÿӯǾoÑËèfPƒ¦PL<50>8FΆ‘ÒÌ%ª_Ä‹b4æIÜ—tk²°Uœ¸êLdeIÁòd<3/˜|0¥šjÈää1Ö£ÃõÛ\Gßô³c…wÛe»]ô~úùߊ<C39F>ÁS
+)ÏGxE<78>èôÿqØsµÓUÚ‡8šÁmkæ~
yIæ

tests-clar/resources/issue_1397/.gitted/refs/heads/master

@@ -0,0 +1 @@
+7f483a738f867e5b21c8f377d70311f011eb48b5

tests-clar/resources/issue_1397/crlf_file.txt

@@ -0,0 +1,3 @@
+first line
+second line
+both with crlf

tests-clar/resources/issue_1397/some_other_crlf_file.txt

@@ -0,0 +1,3 @@
+first line
+second line with some change
+both with crlf

tests-clar/status/worktree.c

@@ -541,6 +541,21 @@ void test_status_worktree__line_endings_dont_count_as_changes_with_autocrlf(void
 	cl_assert_equal_i(GIT_STATUS_CURRENT, status);
 }
 
+void test_status_worktree__line_endings_dont_count_as_changes_with_autocrlf_issue_1397(void)
+{
+	git_repository *repo = cl_git_sandbox_init("issue_1397");
+	git_config *config;
+	unsigned int status;
+
+	cl_git_pass(git_repository_config(&config, repo));
+	cl_git_pass(git_config_set_bool(config, "core.autocrlf", true));
+	git_config_free(config);
+
+	cl_git_pass(git_status_file(&status, repo, "crlf_file.txt"));
+
+	cl_assert_equal_i(GIT_STATUS_CURRENT, status);
+}
+
 void test_status_worktree__conflicted_item(void)
 {
 	git_repository *repo = cl_git_sandbox_init("status");