add test descriptions

Author: karenetheridge

t/version.t

@@ -7,14 +7,15 @@ use lib "t/lib/0_2";
 plan tests => 4;
 
 require Foo;
-is $Foo::VERSION, 0.2;
+is($Foo::VERSION, 0.2, 'affirmed version of loaded module');
 
 my $meta = Module::Metadata->new_from_module("Foo", inc => [ "t/lib/0_1" ] );
-is $meta->version, 0.1;
+is($meta->version, 0.1, 'extracted proper version from scanned module');
 
-is $Foo::VERSION, 0.2;
+is($Foo::VERSION, 0.2, 'loaded module still retains its version');
 
-ok eval "use Foo 0.2; 1";
+ok(eval "use Foo 0.2; 1", 'successfully loaded module again')
+    or diag 'got exception: ', $@;