phpの闇

testBoolCheck.php

<?php
    require_once 'PHPUnit/Autoload.php';

    class testBoolCheck extends PHPUnit_Framework_TestCase {

        public function testBoolCheck_1(){
            $this->assertEquals(is_bool(-1),false);
        }

        public function testBoolCheck_2(){
            $this->assertEquals(is_bool(0),false);
        }

        public function testBoolCheck_3(){
            $this->assertEquals(is_bool((bool)(-1)),true);
        }

        public function testBoolCheck_4(){
            $this->assertEquals(is_bool((bool)(0)),true);
        }

        public function testBoolCheck_5(){
            $this->assertEquals(0,false);
        }

        public function testBoolCheck_6(){
            $this->assertEquals(0.0,false);
        }

        public function testBoolCheck_7(){
            $this->assertEquals(-1,true);
        }

        public function testBoolCheck_8(){
            $this->assertEquals(1,true);
        }

        public function testBoolCheck_9(){
            $this->assertEquals(2,true);
        }

    }