Convert the POSIX waitpid tests to Test::More.

Explicitly test POSIX::exit(), POSIX::fork(), POSIX::sleep() and
POSIX::waitpid(). Use POSIX::_exit() in the child process.

diff --git a/ext/POSIX/t/waitpid.t b/ext/POSIX/t/waitpid.t
index 105b1be..7e821fd 100644 (file)
--- a/ext/POSIX/t/waitpid.t
+++ b/ext/POSIX/t/waitpid.t
@@ -21,7 +21,7 @@ use strict;
 
 $| = 1;
 
-print "1..1\n";
+use Test::More tests => 3;
 
 sub NEG1_PROHIBITED () { 0x01 }
 sub NEG1_REQUIRED   () { 0x02 }
@@ -31,11 +31,12 @@ my $max_count = 9;
 my $state     = NEG1_PROHIBITED;
 
 my $child_pid = fork();
+fail("fork failed") unless defined $child_pid;
 
 # Parent receives a nonzero child PID.
 
 if ($child_pid) {
-    my $ok = 1;
+    my @problems;
 
     while ($count++ < $max_count) {   
        my $begin_time = time();        
@@ -45,39 +46,39 @@ if ($child_pid) {
        printf( "# waitpid(-1,WNOHANG) returned %d after %.2f seconds\n",
                $ret, $elapsed_time );
        if ($elapsed_time > 0.5) {
-           printf( "# %.2f seconds in non-blocking waitpid is too long!\n",
-                   $elapsed_time );
-           $ok = 0;
+           push @problems,
+               sprintf "%.2f seconds in non-blocking waitpid is too long!\n",
+                   $elapsed_time;
            last;
        }
        
        if ($state & NEG1_PROHIBITED) { 
            if ($ret == -1) {
-               print "# waitpid should not have returned -1 here!\n";
-               $ok = 0;
+               push @problems, "waitpid should not have returned -1 here!\n";
                last;
            }
            elsif ($ret == $child_pid) {
                $state = NEG1_REQUIRED;
+               is(WIFEXITED(${^CHILD_ERROR_NATIVE}), 1, 'child exited cleanly');
+               is(WEXITSTATUS(${^CHILD_ERROR_NATIVE}), 0,
+                  'child exited with 0 (the retun value of its sleep(3) call)');
+
            }
        }
        elsif ($state & NEG1_REQUIRED) {
            unless ($ret == -1) {
-               print "# waitpid should have returned -1 here\n";
-               $ok = 0;
+               push @problems, "waitpid should have returned -1 here!\n";
            }
            last;
        }
        
        sleep(1);
     }
-    print $ok ? "ok 1\n" : "not ok 1\n";
-    exit(0); # parent 
+    is("@problems", "", 'no problems');
+    POSIX::exit(0); # parent
+    fail("Should have exited");
 } else {
     # Child receives a zero PID and can request parent's PID with
     # getppid().
-    sleep(3);
-    exit(0);
+    POSIX::_exit(POSIX::sleep(3));
 }
-
-