SiteTest::testLoginLogout PHP Method

    public function testLoginLogout()
    {
        $this->open('');
        // ensure the user is logged out
        if ($this->isTextPresent('Logout')) {
            $this->clickAndWait('link=Logout');
        }
        // test login process, including validation
        $this->clickAndWait('link=Login');
        $this->assertElementPresent('name=LoginForm[username]');
        $this->type('name=LoginForm[username]', 'admin');
        $this->clickAndWait("//input[@value='Login']");
        $this->assertTextPresent('Password cannot be blank.');
        $this->type('name=LoginForm[password]', 'admin');
        $this->clickAndWait("//input[@value='Login']");
        $this->assertTextNotPresent('Password cannot be blank.');
        $this->assertTextPresent('Logout');
        // test logout process
        $this->assertTextNotPresent('Login');
        $this->clickAndWait('link=Logout (admin)');
        $this->assertTextPresent('Login');
    }