1 files changed, 38 insertions, 0 deletions
diff --git a/cpan/Win32/t/GetCurrentThreadId.t b/cpan/Win32/t/GetCurrentThreadId.t
new file mode 100644
index 0000000000..ce98f3e562
--- /dev/null
+++ b/cpan/Win32/t/GetCurrentThreadId.t
@@ -0,0 +1,38 @@
+use strict;
+use Config qw(%Config);
+use Test;
+use Win32;
+
+my $fork_emulation = $Config{ccflags} =~ /PERL_IMPLICIT_SYS/;
+
+my $tests = $fork_emulation ? 4 : 2;
+plan tests => $tests;
+
+my $pid = $$+0; # make sure we don't copy any magic to $pid
+
+if ($^O eq "cygwin") {
+    skip(!defined &Cygwin::pid_to_winpid,
+	 Cygwin::pid_to_winpid($pid),
+	 Win32::GetCurrentProcessId());
+}
+else {
+    ok($pid, Win32::GetCurrentProcessId());
+}
+
+if ($fork_emulation) {
+    # This test relies on the implementation detail that the fork() emulation
+    # uses the negative value of the thread id as a pseudo process id.
+    if (my $child = fork) {
+	waitpid($child, 0);
+	exit 0;
+    }
+    ok(-$$, Win32::GetCurrentThreadId());
+
+    # GetCurrentProcessId() should still return the real PID
+    ok($pid, Win32::GetCurrentProcessId());
+    ok($$ != Win32::GetCurrentProcessId());
+}
+else {
+    # here we just want to see something.
+    ok(Win32::GetCurrentThreadId() > 0);
+}