Commit ba8fb7c46ac66e941f9452c9743c13fc2daaa85b
2015-06-24T11:39:59
diff::binary tests: empty diff when forced binary Ensure that even when we're forcing a binary diff that we do not assume that there *is* a diff. There should be an empty diff for no change.
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diff --git a/tests/diff/binary.c b/tests/diff/binary.c
index 90f2d5a..6a5f390 100644
--- a/tests/diff/binary.c
+++ b/tests/diff/binary.c
@@ -269,6 +269,36 @@ void test_diff_binary__delta_append(void)
git_index_free(index);
}
+void test_diff_binary__empty_for_no_diff(void)
+{
+ git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
+ git_oid id;
+ git_commit *commit;
+ git_tree *tree;
+ git_diff *diff;
+ git_buf actual = GIT_BUF_INIT;
+ const char *expected = "";
+
+ opts.flags = GIT_DIFF_SHOW_BINARY | GIT_DIFF_FORCE_BINARY;
+ opts.id_abbrev = GIT_OID_HEXSZ;
+
+ repo = cl_git_sandbox_init("renames");
+
+ cl_git_pass(git_oid_fromstr(&id, "19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13"));
+ cl_git_pass(git_commit_lookup(&commit, repo, &id));
+ cl_git_pass(git_commit_tree(&tree, commit));
+
+ cl_git_pass(git_diff_tree_to_tree(&diff, repo, tree, tree, &opts));
+ cl_git_pass(git_diff_print(diff, GIT_DIFF_FORMAT_PATCH, git_diff_print_callback__to_buf, &actual));
+
+ cl_assert_equal_s("", actual.ptr);
+
+ git_buf_free(&actual);
+ git_diff_free(diff);
+ git_commit_free(commit);
+ git_tree_free(tree);
+}
+
void test_diff_binary__index_to_workdir(void)
{
git_index *index;