t4018: convert perl pattern tests to the new infrastructure

diff --git a/t/test-lib.sh b/t/test-lib.sh
index f54a77c2928641b1f70d06e9ea0c7b984777d365..1531c241c08f0fad1a8e0789dbed2675b0fe5e56 100644 (file)
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+# Test framework for git.  See t/README for usage.
 #
 # Copyright (c) 2005 Junio C Hamano
 #
@@ -26,6 +26,10 @@ then
        # outside of t/, e.g. for running tests on the test library
        # itself.
        TEST_DIRECTORY=$(pwd)
+else
+       # ensure that TEST_DIRECTORY is an absolute path so that it
+       # is valid even if the current working directory is changed
+       TEST_DIRECTORY=$(cd "$TEST_DIRECTORY" && pwd) || exit 1
 fi
 if test -z "$TEST_OUTPUT_DIRECTORY"
 then
@@ -571,11 +575,9 @@ then
 
        make_valgrind_symlink () {
                # handle only executables, unless they are shell libraries that
-               # need to be in the exec-path.  We will just use "#!" as a
-               # guess for a shell-script, since we have no idea what the user
-               # may have configured as the shell path.
+               # need to be in the exec-path.
                test -x "$1" ||
-               test "#!" = "$(head -c 2 <"$1")" ||
+               test "# " = "$(head -c 2 <"$1")" ||
                return;
 
                base=$(basename "$1")
@@ -828,6 +830,10 @@ test_lazy_prereq SYMLINKS '
        ln -s x y && test -h y
 '
 
+test_lazy_prereq FILEMODE '
+       test "$(git config --bool core.filemode)" = true
+'
+
 test_lazy_prereq CASE_INSENSITIVE_FS '
        echo good >CamelCase &&
        echo bad >camelcase &&