@Test
public void testReadSymbol() {

    
    //Create two real stock symbols
    String symbol = "testsymbol";

    Map<String,String> obj = persistence.createSymbol(symbol);
    persistence.saveSymbol(symbol);

    String symbol2 = "testsymbol2";
    Map<String,String> obj2 = persistence.createSymbol(symbol2);
    persistence.saveSymbol(symbol2);

    
    //Create a bogus stock symbol that should not exist
    
    //Querying bogus should result in a null, since it does not exist
    Map<String,String> bogus = persistence.readSymbol("bogus");
    assertNull("Read bogus", bogus);
    
    
    //Querying symbol1 and symbol2 should return data.
    Map<String,String> read1 = persistence.readSymbol(symbol);
    assertNotNull("Read symbol1", read1);

    Map<String,String> read2 = persistence.readSymbol(symbol2);
    assertNotNull("Read symbol2", read2);
    
}