Add corner case tests for diff-index and diff-files

diff --git a/builtin-commit-tree.c b/builtin-commit-tree.c
index 88b0ab36eba6ded8f1a39e0d4c83122b7e026874..6610d18358bae81ac1f162ca0c71062d36664c2a 100644 (file)
--- a/builtin-commit-tree.c
+++ b/builtin-commit-tree.c
@@ -98,8 +98,8 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
                strbuf_addf(&buffer, "parent %s\n", sha1_to_hex(parent_sha1[i]));
 
        /* Person/date information */
-       strbuf_addf(&buffer, "author %s\n", git_author_info(1));
-       strbuf_addf(&buffer, "committer %s\n", git_committer_info(1));
+       strbuf_addf(&buffer, "author %s\n", git_author_info(IDENT_ERROR_ON_NO_NAME));
+       strbuf_addf(&buffer, "committer %s\n", git_committer_info(IDENT_ERROR_ON_NO_NAME));
        if (!encoding_is_utf8)
                strbuf_addf(&buffer, "encoding %s\n", git_commit_encoding);
        strbuf_addch(&buffer, '\n');