Test that 'do_system' passes args to 'system' correctly

Author: rwstauner

t/do_system.t

@@ -0,0 +1,21 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use Test::More tests => 2;
+
+# test that 'do_system' wraps 'system' correctly
+
+our @system;
+BEGIN {
+  *CORE::GLOBAL::system = sub { @system = @_; };
+}
+use App::perlbrew;
+
+# don't actually run() it, we just want to call do_system
+my $app = App::perlbrew->new('list');
+
+$app->do_system(qw(perl -E), 'say 42');
+is_deeply \@system, [qw(perl -E), 'say 42'], 'passed all arguments to system()';
+
+$app->do_system("perl -e 'say 42'");
+is_deeply \@system, ["perl -e 'say 42'"], 'passed single string to system()';