### Question:
SaveWorkspaceEvent extends BaseWorkspaceEvent { public Map<String, String> getDataForModule(String module) { Map<String, String> values = data.get(module); if (values == null) { Map<String, String> emptyValues = new HashMap<>(); values = data.putIfAbsent(module, emptyValues); if (values == null) { values = emptyValues; } } return values; } SaveWorkspaceEvent(File destination);  SaveWorkspaceEvent(File destination, boolean awaitCompletion); Map<String, Map<String, String>> getData(); void addValue(String module, String key, String value); Map<String, String> getDataForModule(String module); final boolean awaitCompletion; }### Answer:
@Test public void nullSafeGet() { assertEquals(0, victim.getDataForModule("chuck").size()); }