Merge pull request #659 from libgit2/development-merge

New-error-handling

1 files changed, 99 insertions, 0 deletions

diff --git a/tests-clar/diff/patch.c b/tests-clar/diff/patch.c
new file mode 100644
index 000000000..05e748667
--- /dev/null
+++ b/tests-clar/diff/patch.c
@@ -0,0 +1,99 @@
+#include "clar_libgit2.h"
+#include "diff_helpers.h"
+
+static git_repository *g_repo = NULL;
+
+void test_diff_patch__initialize(void)
+{
+	g_repo = cl_git_sandbox_init("status");
+}
+
+void test_diff_patch__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+}
+
+#define EXPECTED_HEADER "diff --git a/subdir.txt b/subdir.txt\n" \
+	"deleted file mode 100644\n" \
+	"index e8ee89e..0000000\n" \
+	"--- a/subdir.txt\n" \
+	"+++ /dev/null\n"
+
+#define EXPECTED_HUNK "@@ -1,2 +0,0 @@\n"
+
+static int check_removal_cb(
+	void *cb_data,
+	git_diff_delta *delta,
+	git_diff_range *range,
+	char line_origin,
+	const char *formatted_output,
+	size_t output_len)
+{
+	GIT_UNUSED(cb_data);
+	GIT_UNUSED(output_len);
+
+	switch (line_origin) {
+	case GIT_DIFF_LINE_FILE_HDR:
+		cl_assert_equal_s(EXPECTED_HEADER, formatted_output);
+		cl_assert(range == NULL);
+		goto check_delta;
+
+	case GIT_DIFF_LINE_HUNK_HDR:
+		cl_assert_equal_s(EXPECTED_HUNK, formatted_output);
+		/* Fall through */
+
+	case GIT_DIFF_LINE_CONTEXT:
+	case GIT_DIFF_LINE_DELETION:
+		goto check_range;
+
+	default:
+		/* unexpected code path */
+		return -1;
+	}
+
+check_range:
+	cl_assert(range != NULL);
+	cl_assert_equal_i(1, range->old_start);
+	cl_assert_equal_i(2, range->old_lines);
+	cl_assert_equal_i(0, range->new_start);
+	cl_assert_equal_i(0, range->new_lines);
+
+check_delta:
+	cl_assert_equal_s("subdir.txt", delta->old_file.path);
+	cl_assert_equal_s("subdir.txt", delta->new_file.path);
+	cl_assert_equal_i(GIT_DELTA_DELETED, delta->status);
+
+	return 0;
+}
+
+void test_diff_patch__can_properly_display_the_removal_of_a_file(void)
+{
+	/*
+	* $ git diff 26a125e..735b6a2
+	* diff --git a/subdir.txt b/subdir.txt
+	* deleted file mode 100644
+	* index e8ee89e..0000000
+	* --- a/subdir.txt
+	* +++ /dev/null
+	* @@ -1,2 +0,0 @@
+	* -Is it a bird?
+	* -Is it a plane?
+	*/
+
+	const char *one_sha = "26a125e";
+	const char *another_sha = "735b6a2";
+	git_tree *one, *another;
+	git_diff_list *diff;
+
+	one = resolve_commit_oid_to_tree(g_repo, one_sha);
+	another = resolve_commit_oid_to_tree(g_repo, another_sha);
+
+	cl_git_pass(git_diff_tree_to_tree(g_repo, NULL, one, another, &diff));
+
+	cl_git_pass(git_diff_print_patch(diff, NULL, check_removal_cb));
+
+	git_diff_list_free(diff);
+
+	git_tree_free(another);
+	git_tree_free(one);
+}