### Question:
SQLSchemaImpl implements SQLSchema { public SQLSchema.Table getTableForAlias(String alias) { return null; } SQLSchemaImpl(ISession session); SQLSchema.Table getTable(String catalog, String schema, String name); List<Table> getTables(String catalog, String schema, String name); SQLSchema.Table getTableForAlias(String alias);  }### Answer:
@Test public void testGetTableForAlias() { mockHelper.replayAll(); classUnderTest = new SQLSchemaImpl(mockSession); assertNull(classUnderTest.getTableForAlias("aTableAlias")); mockHelper.verifyAll(); }