public function testGetExampleNumber()
{
$this->assertEquals(self::$deNumber, $this->phoneUtil->getExampleNumber(RegionCode::DE));
$this->assertEquals(self::$deNumber, $this->phoneUtil->getExampleNumberForType(RegionCode::DE, PhoneNumberType::FIXED_LINE));
$this->assertEquals(null, $this->phoneUtil->getExampleNumberForType(RegionCode::DE, PhoneNumberType::MOBILE));
// For the US, the example number is placed under general description, and hence should be used
// for both fixed line and mobile, so neither of these should return null.
$this->assertNotNull($this->phoneUtil->getExampleNumberForType(RegionCode::US, PhoneNumberType::FIXED_LINE));
$this->assertNotNull($this->phoneUtil->getExampleNumberForType(RegionCode::US, PhoneNumberType::MOBILE));
// CS is an invalid region, so we have no data for it.
$this->assertNull($this->phoneUtil->getExampleNumberForType(RegionCode::CS, PhoneNumberType::MOBILE));
// RegionCode 001 is reserved for supporting non-geographical country calling code. We don't
// support getting an example number for it with this method.
$this->assertEquals(null, $this->phoneUtil->getExampleNumber(RegionCode::UN001));
}