<?php
namespace presslabs\minify;
use phpmock\phpunit\PHPMock;
class Test_PL_Minify extends \PHPUnit_Framework_TestCase {
 use PHPMock;
 public static function setUpBeforeClass() {
 # these are needed because of https://bugs.php.net/bug.php?id=68541
 # in short we use a call from an unaltered namespace then alter it which leads php confused
 PHPMock::defineFunctionMock( __NAMESPACE__, 'true_constant' );
 PHPMock::defineFunctionMock( __NAMESPACE__, 'defined' );
 PHPMock::defineFunctionMock( __NAMESPACE__, 'constant' );
 PHPMock::defineFunctionMock( __NAMESPACE__, 'pl_minify_page' );
 PHPMock::defineFunctionMock( __NAMESPACE__, 'minify_html' );
 PHPMock::defineFunctionMock( __NAMESPACE__, 'minify_css' );
 PHPMock::defineFunctionMock( __NAMESPACE__, 'minify_js' );
 # TODO refactor this duplication
 }
 function test_minify_page_minification() {
 $true_constant = $this->getFunctionMock( __NAMESPACE__, 'true_constant' );
 $true_constant->expects( $this->once() )
 ->with( 'PL_MINIFY_HTML' )
 ->willReturn( true );
 $input = 'random';
 $minify_html = $this->getFunctionMock( __NAMESPACE__, 'minify_html' );
 $minify_html->expects( $this->once() )
 ->with( $input )
 ->willReturn( 'mini' );
 $actual = pl_minify_page( $input );
 $this->assertSame( 'mini', $actual );
 }
}

namespace presslabs\minify;
function pl_minify_page( $buffer ) {
 error_log('before if' . serialize($buffer));
 if ( true_constant( 'PL_MINIFY_HTML' ) ) {
 error_log( "a" . serialize( $buffer ) );
 # gets here
 return minify_html( $buffer );
 }
 error_log('not modified');
 return $buffer;
}
function minify_css( $text ) {
 require_once( PL_PLUGINS_LIB . '/class-cssmin.php' );
 $compressor = new \CSSmin();
 $contents = $compressor->run( $text );
 return $contents;
}
function minify_js( $text ) {
 require_once( PL_PLUGINS_LIB . '/class-JavaScriptPacker.php' );
 $packer = new \JavaScriptPacker( $text, 'None', true, false );
 $contents = $packer->pack();
 return $contents;
}
function minify_html( $text ) {
 require_once( PL_PLUGINS_LIB . '/class-minify-html.php' );
 $buffer = \Minify_HTML::minify( $text, array(
 'cssMinifier' => true_constant( 'PL_MINIFY_INLINE_CSS' ) ? __NAMESPACE__ . '\\minify_css' : null,
 'jsMinifier' => true_constant( 'PL_MINIFY_INLINE_JS' ) ? __NAMESPACE__ . '\\minify_js' : null,
 'jsCleanComments' => true_constant( 'PL_MINIFY_REMOVE_COMMENTS' ),
 'htmlCleanComments' => true_constant( 'PL_MINIFY_REMOVE_COMMENTS' )
 ) );
 return $buffer;
}
function true_constant( $name ) {
 return defined( $name ) and constant( $name ) === 'True';
}