1 files changed, 49 insertions, 0 deletions
diff --git a/tests/diff/tree.c b/tests/diff/tree.c
index 2359a834b..dfe4d254c 100644
--- a/tests/diff/tree.c
+++ b/tests/diff/tree.c
@@ -524,3 +524,52 @@ void test_diff_tree__diff_configs(void)
 	cl_assert_equal_i(7, expect.line_adds);
 	cl_assert_equal_i(15, expect.line_dels);
 }
+
+void test_diff_tree__diff_tree_with_empty_dir_entry_succeeds(void)
+{
+	const char *content = "This is a blob\n";
+	const git_diff_delta *delta;
+	git_oid empty_tree, invalid_tree, blob;
+	git_buf patch = GIT_BUF_INIT;
+	git_treebuilder *builder;
+
+	g_repo = cl_git_sandbox_init("empty_standard_repo");
+
+	cl_git_pass(git_blob_create_from_buffer(&blob, g_repo, content, strlen(content)));
+	cl_git_pass(git_treebuilder_new(&builder, g_repo, NULL));
+	cl_git_pass(git_treebuilder_write(&empty_tree, builder));
+	cl_git_pass(git_treebuilder_insert(NULL, builder, "empty_tree", &empty_tree, GIT_FILEMODE_TREE));
+	cl_git_pass(git_treebuilder_insert(NULL, builder, "blob", &blob, GIT_FILEMODE_BLOB));
+	cl_git_pass(git_treebuilder_write(&invalid_tree, builder));
+
+	cl_git_pass(git_tree_lookup(&a, g_repo, &empty_tree));
+	cl_git_pass(git_tree_lookup(&b, g_repo, &invalid_tree));
+	cl_git_pass(git_diff_tree_to_tree(&diff, g_repo, a, b, NULL));
+
+	cl_git_pass(git_diff_foreach(diff,
+		diff_file_cb, diff_binary_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_MODIFIED]);
+	cl_assert_equal_i(1, expect.hunks);
+	cl_assert_equal_i(1, expect.lines);
+	cl_assert_equal_i(0, expect.line_ctxt);
+	cl_assert_equal_i(1, expect.line_adds);
+	cl_assert_equal_i(0, expect.line_dels);
+
+	cl_git_pass(git_diff_to_buf(&patch, diff, GIT_DIFF_FORMAT_PATCH));
+	cl_assert_equal_s(patch.ptr,
+		"diff --git a/blob b/blob\n"
+		"new file mode 100644\n"
+		"index 0000000..bbf2e80\n"
+		"--- /dev/null\n"
+		"+++ b/blob\n"
+		"@@ -0,0 +1 @@\n"
+		"+This is a blob\n");
+
+	cl_assert_equal_i(git_diff_num_deltas(diff), 1);
+	delta = git_diff_get_delta(diff, 0);
+	cl_assert_equal_s(delta->new_file.path, "blob");
+
+	git_treebuilder_free(builder);
+	git_buf_dispose(&patch);
+}