| /* ==================================================================== |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You 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 org.apache.poi.util.tests; |
| |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertFalse; |
| import static org.junit.jupiter.api.Assertions.assertNotEquals; |
| import static org.junit.jupiter.api.Assertions.assertSame; |
| import static org.junit.jupiter.api.Assertions.assertThrows; |
| import static org.junit.jupiter.api.Assertions.assertTrue; |
| |
| import org.apache.poi.ooxml.util.IdentifierManager; |
| import org.junit.jupiter.api.Test; |
| |
| class TestIdentifierManager { |
| @Test |
| void testBasic() |
| { |
| IdentifierManager manager = new IdentifierManager(0L,100L); |
| assertEquals(101L,manager.getRemainingIdentifiers()); |
| assertEquals(0L,manager.reserveNew()); |
| assertEquals(100L,manager.getRemainingIdentifiers()); |
| assertEquals(1L,manager.reserve(0L)); |
| assertEquals(99L,manager.getRemainingIdentifiers()); |
| } |
| |
| @Test |
| void testLongLimits() { |
| long min = IdentifierManager.MIN_ID; |
| long max = IdentifierManager.MAX_ID; |
| IdentifierManager manager = new IdentifierManager(min,max); |
| assertTrue(max - min + 1 > 0, "Limits lead to a long variable overflow"); |
| assertTrue(manager.getRemainingIdentifiers() > 0, "Limits lead to a long variable overflow"); |
| assertEquals(min,manager.reserveNew()); |
| assertEquals(max,manager.reserve(max)); |
| assertEquals(max - min -1, manager.getRemainingIdentifiers()); |
| manager.release(max); |
| manager.release(min); |
| } |
| |
| @Test |
| void testReserve() { |
| IdentifierManager manager1 = new IdentifierManager(10L, 30L); |
| assertEquals(12L, manager1.reserve(12L)); |
| long reserve = manager1.reserve(12L); |
| assertNotEquals(12L, reserve, "Same id must be reserved twice!"); |
| assertTrue(manager1.release(12L)); |
| assertTrue(manager1.release(reserve)); |
| assertFalse(manager1.release(12L)); |
| assertFalse(manager1.release(reserve)); |
| |
| IdentifierManager manager2 = new IdentifierManager(0L, 2L); |
| assertEquals(0L, manager2.reserve(0L)); |
| assertEquals(1L, manager2.reserve(1L)); |
| assertEquals(2L, manager2.reserve(2L)); |
| assertThrows(IllegalStateException.class, () -> manager2.reserve(0L)); |
| assertThrows(IllegalStateException.class, () -> manager2.reserve(1L)); |
| assertThrows(IllegalStateException.class, () -> manager2.reserve(2L)); |
| } |
| |
| @Test |
| void testReserveNew() { |
| IdentifierManager manager = new IdentifierManager(10L,12L); |
| assertSame(10L,manager.reserveNew()); |
| assertSame(11L,manager.reserveNew()); |
| assertSame(12L,manager.reserveNew()); |
| assertThrows(IllegalStateException.class, manager::reserveNew); |
| } |
| |
| @Test |
| void testRelease() { |
| IdentifierManager manager = new IdentifierManager(10L,20L); |
| assertEquals(10L,manager.reserve(10L)); |
| assertEquals(11L,manager.reserve(11L)); |
| assertEquals(12L,manager.reserve(12L)); |
| assertEquals(13L,manager.reserve(13L)); |
| assertEquals(14L,manager.reserve(14L)); |
| |
| assertTrue(manager.release(10L)); |
| assertEquals(10L,manager.reserve(10L)); |
| assertTrue(manager.release(10L)); |
| |
| assertTrue(manager.release(11L)); |
| assertEquals(11L,manager.reserve(11L)); |
| assertTrue(manager.release(11L)); |
| assertFalse(manager.release(11L)); |
| assertFalse(manager.release(10L)); |
| |
| assertEquals(10L,manager.reserve(10L)); |
| assertEquals(11L,manager.reserve(11L)); |
| assertTrue(manager.release(12L)); |
| } |
| } |