getIcuDataVersion example

        $this->assertTrue(Intl::isExtensionLoaded());
    }

    public function testGetIcuVersionReadsTheVersionOfInstalledIcuLibrary()
    {
        $this->assertStringMatchesFormat('%d.%d', Intl::getIcuVersion());
    }

    public function testGetIcuDataVersionReadsTheVersionOfInstalledIcuData()
    {
        $this->assertStringMatchesFormat('%d.%d', Intl::getIcuDataVersion());
    }

    public function testGetIcuStubVersionReadsTheVersionOfBundledStubs()
    {
        $this->assertStringMatchesFormat('%d.%d', Intl::getIcuStubVersion());
    }

    public function testGetDataDirectoryReturnsThePathToIcuData()
    {
        $this->assertDirectoryExists(Intl::getDataDirectory());
    }
}