/* * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.facebook.presto.sql.planner; import com.facebook.presto.spi.type.BigintType; import com.google.common.collect.ImmutableSet; import org.testng.annotations.Test; import java.util.Set; import static org.testng.Assert.assertEquals; public class TestSymbolAllocator { @Test public void testUnique() throws Exception { SymbolAllocator allocator = new SymbolAllocator(); Set<Symbol> symbols = ImmutableSet.<Symbol>builder() .add(allocator.newSymbol("foo_1_0", BigintType.BIGINT)) .add(allocator.newSymbol("foo", BigintType.BIGINT)) .add(allocator.newSymbol("foo", BigintType.BIGINT)) .add(allocator.newSymbol("foo", BigintType.BIGINT)) .build(); assertEquals(symbols.size(), 4); } }