bootstrapping test

diff --git a/xt/bootstrap.t b/xt/bootstrap.t
new file mode 100755 (executable)
index 0000000..54a1e59
--- /dev/null
+++ b/xt/bootstrap.t
@@ -0,0 +1,61 @@
+use strict;
+use warnings;
+BEGIN {
+  if (@ARGV && $ARGV[0] eq '--check-version') {
+    my $module = $ARGV[1];
+    (my $file = "$module.pm") =~ s{::}{/}g;
+    eval {
+      require $file;
+      my $version = do { no strict; ${"${module}::VERSION"} };
+      print eval $version;
+    };
+    exit;
+  }
+}
+
+use Test::More;
+use File::Temp;
+use File::Spec;
+use local::lib ();
+
+delete $ENV{PERL5LIB};
+delete $ENV{PERL_LOCAL_LIB_ROOT};
+delete $ENV{PERL_MM_OPT};
+delete $ENV{PERL_MB_OPT};
+
+#my @ll_path = File::Spec->splitpath($INC{'local/lib.pm'});
+#my @ll_dir = File::Spec->splitdir($ll_path[1]);
+#my $ll_dir = File::Spec->catpath($ll_path[0], File::Spec->catdir(@ll_dir[0 .. $#_-1]), '');
+
+sub check_version {
+  my $module = shift;
+  my $version = `$^X $0 --check-version $module`;
+  chomp $version;
+  length $version ? $version : undef;
+}
+
+my @modules = (
+  [ 'ExtUtils::MakeMaker' => 6.74 ],
+  [ 'ExtUtils::Install'   => 1.43 ],
+  [ 'Module::Build'       => 0.36 ],
+  [ 'CPAN'                => 1.82 ],
+);
+plan tests => 1+@modules;
+
+for my $module (@modules) {
+  my $version = check_version($module->[0]);
+  if ($version && $version >= $module->[1]) {
+    warn "Can't test bootstrap of $module->[0], version $version already meets requirement of $module->[1]\n";
+  }
+}
+
+$ENV{HOME} = my $home = File::Temp::tempdir( CLEANUP => 1 );
+local::lib->import;
+
+system($^X, 'Makefile.PL', '--bootstrap');
+is $?, 0, 'Makefile.PL ran successfully';
+
+for my $module (@modules) {
+  my $version = check_version($module->[0]);
+  cmp_ok $version, '>=', $module->[1], "bootstrap installed new enough $module->[0]";
+}