difftool: Use eval to expand '--extcmd' expressions

diff --git a/t/t9700-perl-git.sh b/t/t9700-perl-git.sh
index b81d5dfc340e050815ad9b2fd0d0636c529ce8d3..8686086dde9dba742bd805c31f3e28c658b03a9b 100755 (executable)
--- a/t/t9700-perl-git.sh
+++ b/t/t9700-perl-git.sh
@@ -6,8 +6,13 @@
 test_description='perl interface (Git.pm)'
 . ./test-lib.sh
 
-perl -MTest::More -e 0 2>/dev/null || {
-       say_color skip "Perl Test::More unavailable, skipping test"
+if ! test_have_prereq PERL; then
+       say 'skipping perl interface tests, perl not available'
+       test_done
+fi
+
+"$PERL_PATH" -MTest::More -e 0 2>/dev/null || {
+       say "Perl Test::More unavailable, skipping test"
        test_done
 }
 
@@ -24,6 +29,10 @@ test_expect_success \
      git add . &&
      git commit -m "first commit" &&
 
+     echo "new file in subdir 2" > directory2/file2 &&
+     git add . &&
+     git commit -m "commit in directory2" &&
+
      echo "changed file 1" > file1 &&
      git commit -a -m "second commit" &&
 
@@ -39,6 +48,6 @@ test_expect_success \
 
 test_external_without_stderr \
     'Perl API' \
-    perl "$TEST_DIRECTORY"/t9700/test.pl
+    "$PERL_PATH" "$TEST_DIRECTORY"/t9700/test.pl
 
 test_done