test names
           Anything after the test number but before the # is
           considered to be the name of the test.

             ok 42 this is the name of the test

           Currently, Test::Harness does nothing with this infor-
           mation.

##</code><code>##

use strict;
use warnings;
use lib 't';	# assume run by "make test" so this should work
use File::Spec;
use Test::More tests => 28;

BEGIN {
   unless ($ENV{TEST_VERBOSE}) {
      # silence the --verbose and --dump stuff
      open (my $f, '>', File::Spec->devnull());
      require Exporter::VA;
      *Exporter::VA::VERBOSE= $f;
	};
};

sub verify {
	my ($code, $expected) = @_;
	my $test_name = "calling { $code } ";
	my $result= eval $code;
	if ($@) {
    	fail($test_name);
    	diag("died with $@");
	} else {
		is $result, $expected, $test_name;
	};
}

## Test basic export features.
{	package C1;
	use M1 v1.0 qw/--verbose_import &foo bar baz quux bazola $ztesch --dump/;
}
verify "C1::foo (5)", "Called M1::foo (5).";
verify "C1::bar (6)", "Called M1::internal_bar (6).";
verify "C1::baz (7)", "Called M1::baz (7).";
verify "C1::quux (8)", "Called M1::quux (8).";
verify "C1::bazola (9)", "Called dynamically-generated M1::&bazola asked for by C1, with parameters (9).";
verify '$C1::ztesch=10; ++$M1::ztesch; $C1::ztesch == 11', "1";

## Test .plain and tags
{ package C2; use M2 v1.0 qw/ foo baz $ztesch :tag1/ };
verify "C2::foo (12)", "Called M2::foo (12).";
verify "C2::baz (13)", "Called M2::baz (13).";
verify '$C2::ztesch=14; ++$M2::ztesch; $C2::ztesch == 15', "1";
verify "C2::quux (16)", "Called M2::quux (16).";
verify "C2::bazola (17)", "Called M2::baz (17).";
verify "C2::thud (18)", "Called M2::baz (18).";
verify "C2::grunt (19)", "Called M2::baz (19).";

## Test version-list exports
{ package C3; use M3 qw/--verbose_import foo :blarg/ };
verify "C3::foo (20)", "Called M3::old_foo (20).";
verify "C3::bar (22)", "Called M3::bar (22).";

## Make sure different clients can use different versions
{ package C4; use M3 v2.1 qw/:tag/ };	# more levels of indirection
verify "C4::foo (21)", "Called M3::new_foo (21).";
{ package C5; use M3 v1.5.1 qw/foo/ };
verify "C5::foo (23)", "Called M3::middle_foo (23).";

## Make sure we use a :DEFAULT.
{ package C6; use M2 };
verify "C6::foo (24)", "Called M2::foo (24).";
verify "C6::thud (25)", "Called M2::baz (25).";

## Pragma names may be non-identifiers
# (also tests pragma extracting arguments)
# (also tests that return value from callback is ignored if symbol begins with dash)
{ package C7; our $output; use M2 'foo', '-pra#ma!', \$output, 'baz' };
verify "C7::foo (26)", "Called M2::foo (26).";
verify "C7::baz (27)", "Called M2::baz (27).";
verify "\$C7::output",  "-pra#ma!";

# check the behavior of normalize_vstring
use Exporter::VA 'normalize_vstring';
sub vv {
	my ($x, $answer)= @_;
	is normalize_vstring($x), $answer, "normalised $x";
}
 
vv (v1.2.3, v1.2.3);
vv ('', v0);
vv (v3.2.1.0, v3.2.1);
vv (v1.0.0.0, v1.0);
vv (2.3, v2.3);
vv ('2.3.4', v2.3.4);

# check floating-point version specifier on use line
package C8;
use M3 2.4;
# >> if it worked, it took 2.4 as v2.4, not v50.46.52 or v2.400.
# >> later, check my client desired version.  How can I do that from "outside"?
# >> well, have M3 export a function that I can use to ask from the "inside".