[Module::Build] ruthrough.t doesn't skip test when YAML not installed (patch included)

[Stephen J. S. <sj...@kh...>]

Line 61 of runthrough.t calls check_installed_status() and checks for a
true result.  check_installed_status() returns a hash which always
evaluates to true.

Maybe this hasn't been caught because t/Sample/META.yml is part of the
distribution?  Maybe the test code should unlink() it before invoking
distdir?

The below patch uses the same check that Base.pm uses for a similar
purpose.  There are other approaches of course.

diff -uNr Module-Build-0.20.orig/t/runthrough.t Module-Build-0.20/t/runthrough.t
--- Module-Build-0.20.orig/t/runthrough.t       2003-08-26 14:49:15.000000000 -0400
+++ Module-Build-0.20/t/runthrough.t    2003-10-02 09:18:45.000000000 -0400
@@ -58,7 +58,7 @@
 print $output;
 print "^^^^^^^^^^^^^^^^^^^^^ Sample/test.pl output ^^^^^^^^^^^^^^^^^^^^^\n";
                                                                                                            
-if ($build->check_installed_status('YAML', 0)) {
+if (eval {require YAML; 1}) {
   eval {$build->dispatch('disttest')};
   ok $@, '';
                                                                                                            
End of Patch.