1 files changed, 32 insertions, 0 deletions
diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index ca40a1289f..adab7f51f4 100644
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -81,6 +81,10 @@ test_decode_color () {
 	'
 }
 
+lf_to_nul () {
+	perl -pe 'y/\012/\000/'
+}
+
 nul_to_q () {
 	perl -pe 'y/\000/Q/'
 }
@@ -976,3 +980,31 @@ test_match_signal () {
 	fi
 	return 1
 }
+
+# Read up to "$1" bytes (or to EOF) from stdin and write them to stdout.
+test_copy_bytes () {
+	perl -e '
+		my $len = $ARGV[1];
+		while ($len > 0) {
+			my $s;
+			my $nread = sysread(STDIN, $s, $len);
+			die "cannot read: $!" unless defined($nread);
+			print $s;
+			$len -= $nread;
+		}
+	' - "$1"
+}
+
+# run "$@" inside a non-git directory
+nongit () {
+	test -d non-repo ||
+	mkdir non-repo ||
+	return 1
+
+	(
+		GIT_CEILING_DIRECTORIES=$(pwd) &&
+		export GIT_CEILING_DIRECTORIES &&
+		cd non-repo &&
+		"$@"
+	)
+}