t0021: put $TEST_ROOT in $PATH

diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index ca40a1289f269830e30136459a09fc2526957895..fdaeb3a96bed361f53030cb6ea5c6bdde445163f 100644 (file)
--- 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 +980,17 @@ 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"
+}