use strict;

use Test::Builder::Tester;
use Test::More tests => 26; # includes those in t/setup_common
use Test::File;

my $test_directory = 'test_files';
SKIP: {
    skip "setup already done", 5 if -d $test_directory;
    require "t/setup_common";
};

chdir $test_directory or print "bail out! Could not change directories: $!";

# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # 

# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # 

test_out( 'ok 1 - zero_file is empty' );
file_empty_ok( 'zero_file' );
test_test();

test_out( 'ok 1 - min_file is not empty' );
file_not_empty_ok( 'min_file' );
test_test();

# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # 
# Things that work
{
my $file = 'min_file';

file_exists_ok( $file );

my $actual_size = -s $file;
my $under_size  = $actual_size - 3;
my $over_size   = $actual_size + 3;

cmp_ok( $actual_size, '>', 10, "$file should be at least 10 bytes" );

test_out( "ok 1 - $file has right size" );
file_size_ok( $file, $actual_size );
test_test();

test_out( "ok 1 - $file is under $over_size bytes" );
file_max_size_ok( $file, $over_size );
test_test();

test_out( "ok 1 - $file is over $under_size bytes" );
file_min_size_ok( $file, $under_size );
test_test();
}

# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # 
# Things that don't work (wrong size)
{
my $file = 'min_file';

file_exists_ok( $file );

my $actual_size = -s $file;
my $under_size  = $actual_size - 3;
my $over_size   = $actual_size + 3;

cmp_ok( $actual_size, '>', 10, "$file should be at least 10 bytes" );

test_out( "not ok 1 - $file has right size" );
test_diag( 
	"File [$file] has actual size [$actual_size] not [$under_size]!\n" .
	"#   Failed test '$file has right size'\n" . 
	"#   at $0 line " . line_num(+5) . "." 
	);
file_size_ok( $file, $under_size );
test_test();

test_out( "not ok 1 - $file is under $under_size bytes" );
test_diag( 
	"File [$file] has actual size [$actual_size] greater than [$under_size]!\n" .
	"#   Failed test '$file is under $under_size bytes'\n" . 
	"#   at $0 line " . line_num(+5) . "." 
	);
file_max_size_ok( $file, $under_size );
test_test();

test_out( "not ok 1 - $file is over $over_size bytes" );
test_diag( 
	"File [$file] has actual size [$actual_size] less than [$over_size]!\n" .
	"#   Failed test '$file is over $over_size bytes'\n" . 
	"#   at $0 line " . line_num(+5) . "." 
	);
file_min_size_ok( $file, $over_size );
test_test();

test_out( "not ok 1 - $file is empty" );
test_diag( 
	"File [$file] exists with non-zero size!\n" .
	"#   Failed test '$file is empty'\n" . 
	"#   at $0 line " . line_num(+5) . "." 
	);
file_empty_ok( $file );
test_test();

test_out( "not ok 1 - zero_file is not empty" );
test_diag( 
	"File [zero_file] exists with zero size!\n" .
	"#   Failed test 'zero_file is not empty'\n" . 
	"#   at $0 line " . line_num(+5) . "." 
	);
file_not_empty_ok( 'zero_file' );
test_test();
}

# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # 
# Things that don't work (missing file)
{
my $not_there = 'not_there';
ok( ! -e $not_there, "File [$not_there] doesn't exist (good)" );

test_out( "not ok 1 - $not_there has right size" );
test_diag( 
	"File [$not_there] does not exist!\n" .
	"#   Failed test '$not_there has right size'\n" . 
	"#   at $0 line " . line_num(+5) . "." 
	);
file_size_ok( $not_there, 53 );
test_test();

test_out( "not ok 1 - $not_there is under 54 bytes" );
test_diag( 
	"File [$not_there] does not exist!\n" .
	"#   Failed test '$not_there is under 54 bytes'\n" . 
	"#   at $0 line " . line_num(+5) . "." 
	);
file_max_size_ok( $not_there, 54 );
test_test();

test_out( "not ok 1 - $not_there is over 50 bytes" );
test_diag( 
	"File [$not_there] does not exist!\n" .
	"#   Failed test '$not_there is over 50 bytes'\n" . 
	"#   at $0 line " . line_num(+5) . "." 
	);
file_min_size_ok( $not_there, 50 );
test_test();

test_out( "not ok 1 - $not_there is empty" );
test_diag( 
	"File [$not_there] does not exist!\n" .
	"#   Failed test '$not_there is empty'\n" . 
	"#   at $0 line " . line_num(+5) . "." 
	);
file_empty_ok( $not_there );
test_test();

test_out( "not ok 1 - $not_there is not empty" );
test_diag( 
	"File [$not_there] does not exist!\n" .
	"#   Failed test '$not_there is not empty'\n" . 
	"#   at $0 line " . line_num(+5) . "." 
	);
file_not_empty_ok( $not_there );
test_test();
}

# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #

END {
	chdir '..' or print "bail out! Could not change directories: $!";
	unlink glob( "test_files/*" );
	rmdir "test_files";
}