. ./test-lib.sh
+cat >hello-script <<-EOF
+ #!$SHELL_PATH
+ cat hello-script
+EOF
+>empty
+
test_expect_success 'start_command reports ENOENT' '
test-run-command start-command-ENOENT ./does-not-exist
'
+test_expect_success 'run_command can run a command' '
+ cat hello-script >hello.sh &&
+ chmod +x hello.sh &&
+ test-run-command run-command ./hello.sh >actual 2>err &&
+
+ test_cmp hello-script actual &&
+ test_cmp empty err
+'
+
+test_expect_success POSIXPERM 'run_command reports EACCES' '
+ cat hello-script >hello.sh &&
+ chmod -x hello.sh &&
+ test_must_fail test-run-command run-command ./hello.sh 2>err &&
+
+ grep "fatal: cannot exec.*hello.sh" err
+'
+
+test_expect_success POSIXPERM 'unreadable directory in PATH' '
+ mkdir local-command &&
+ test_when_finished "chmod u+rwx local-command && rm -fr local-command" &&
+ git config alias.nitfol "!echo frotz" &&
+ chmod a-rx local-command &&
+ (
+ PATH=./local-command:$PATH &&
+ git nitfol >actual
+ ) &&
+ echo frotz >expect &&
+ test_cmp expect actual
+'
+
test_done