Neos\Flow\Tests\Unit\Security\Policy\RoleTest::setParentRolesMakesSureThatParentRolesDontContainDuplicates PHP Method

    public function setParentRolesMakesSureThatParentRolesDontContainDuplicates()
    {
        /** @var Role|\PHPUnit_Framework_MockObject_MockObject $role */
        $role = $this->getAccessibleMock(Role::class, ['dummy'], ['Acme.Demo:Test']);
        /** @var Role|\PHPUnit_Framework_MockObject_MockObject $parentRole1 */
        $parentRole1 = $this->getAccessibleMock(Role::class, ['dummy'], ['Acme.Demo:Parent1']);
        /** @var Role|\PHPUnit_Framework_MockObject_MockObject $parentRole2 */
        $parentRole2 = $this->getAccessibleMock(Role::class, ['dummy'], ['Acme.Demo:Parent2']);
        $parentRole2->addParentRole($parentRole1);
        $role->setParentRoles([$parentRole1, $parentRole2, $parentRole2, $parentRole1]);
        $expectedParentRoles = ['Acme.Demo:Parent1' => $parentRole1, 'Acme.Demo:Parent2' => $parentRole2];
        $this->assertEquals(2, count($role->getParentRoles()));
        $this->assertEquals($expectedParentRoles, $role->getParentRoles());
    }