@Test
public void testAddSymbol_notExist() {

	// given
	String code = USD;
	String name = "US Dollar";
	String countryFlag = "us";
	// when
	Symbol result = symbolService.addSymbol(code, name, countryFlag, null);
	// then
	assertThat(result).isEqualToComparingFieldByField(new SymbolEntity(code, name, countryFlag, null));
	assertThat(result).isEqualToComparingFieldByField(symbolRepo.findById(code).get());
}