### Question:
SymbolImpl implements Symbol { @Override public final void clear (String name) { clear (name.split (PERIOD)); } protected  SymbolImpl(String name, Scope scope); @Override final String getName(); @Override final String getValue(); @Override final void setValue(String value); @Override final void clear(String name);  }### Answer:
@Test public void testClear () { SymbolImpl symbol = new SymbolImplImpl (NAME, VALUE1); symbol.clear ("a.b".split ("\\.")); assertEquals ("", symbol.getValue ()); }