/**
  * @test
  * @dataProvider invalidGetDisplayNameProvider
  * @expectedException \BlockCypher\Exception\BlockCypherConfigurationException
  * @param mixed $coinSymbol
  * @throws \BlockCypher\Exception\BlockCypherConfigurationException
  */
 public function testGetDisplayNameInvalidInput($coinSymbol)
 {
     BlockCypherCoinSymbolConstants::getDisplayName($coinSymbol);
 }
 /**
  * @param $coinSymbol
  * @return string
  */
 public function coinSymbolToDisplayNameFilter($coinSymbol)
 {
     return BlockCypherCoinSymbolConstants::getDisplayName($coinSymbol);
 }