runpty.c: Replace fprintf()+exit() pairs with new die().

[nmh] / test / install-mh / test-version-check

diff --git a/test/install-mh/test-version-check b/test/install-mh/test-version-check
index 1314f643988f0d2c68457b1fef58b04453d69c5b..2db8565b0a85836727077259ab78128eba7f64f9 100755 (executable)
--- a/test/install-mh/test-version-check
+++ b/test/install-mh/test-version-check
@@ -17,36 +17,15 @@ fi
 
 setup_test
 
-require_prog script
-
 actual="${MH_TEST_DIR}/test-version-check$$.actual"
 context="${MH_TEST_DIR}"/Mail/context
 version="Version: nmh-${MH_VERSION}"
 cmd="${MH_TEST_DIR}/Mail/cmd"
+runpty="${MH_OBJ_DIR}/test/runpty"
 
-if script -S /bin/sh 'echo OK' /dev/null 2>&1 | egrep 'OK' >/dev/null; then
-    #### script(1) uses -S to set the shell that it runs.
-    use_dash_S=1
-else
-    cat >"${cmd}" <<EOF
-#! /bin/sh
-echo OK
-EOF
-    chmod +x "${cmd}"
-
-    SHELL="${cmd}" script "${actual}" >/dev/null &
-    wait $!
-    if grep OK "${actual}" >/dev/null; then
-        #### script(1) supports SHELL environment variable.
-        use_dash_S=0
-    else
-        test_skip "can't find mechanism to set SHELL for script(1)"
-    fi
-fi
-
-#### Run a command but don't wait for user input.  script(1) seems to do
-#### what we want by not waiting when run in the background.  But check
-#### that it makes the command look like it's connected to a terminal below.
+#### Run a command but don't wait for user input.  We switched from script(1)
+#### to our own utility, runpty.  Check that it makes the command look like
+#### it's connected to a terminal below.
 run_without_input() {
     #### Create a command to use as a shell for script.
     cat >"${cmd}" <<EOF
@@ -55,19 +34,13 @@ $*
 EOF
     chmod +x "${cmd}"
 
-    if [ ${use_dash_S} -eq 1 ]; then
-        script -S "${cmd}" "${actual}" >/dev/null &
-    else
-        SHELL="${cmd}" script "${actual}" >/dev/null &
-    fi
-
-    wait $!
+    "$runpty" "${actual}" "${cmd}"
 }
 
-#### Ensure that script(1) makes the program look like it's connected to a
+#### Ensure that runpty makes the program look like it's connected to a
 #### terminal.  The welcome message code in sbr/utils.c needs that.
 run_without_input 'if test -t 0  -a  -t 1  -a  -t 2; then echo tty; fi'
-grep tty "${actual}" >/dev/null || test_skip "script(1) doesn't simulate tty"
+grep tty "${actual}" >/dev/null || test_skip "runpty doesn't simulate tty"
 
 
 # Removing Version will trigger the welcome message.  (setup_test