| /* |
| * 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.logging.log4j.spi; |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.Iterator; |
| |
| import org.apache.logging.log4j.ThreadContext.ContextStack; |
| import org.apache.logging.log4j.test.junit.UsingAnyThreadContext; |
| import org.junit.jupiter.api.BeforeEach; |
| import org.junit.jupiter.api.Test; |
| |
| import static org.junit.jupiter.api.Assertions.*; |
| |
| @UsingAnyThreadContext |
| public class DefaultThreadContextStackTest { |
| |
| @BeforeEach |
| public void before() { |
| // clear the thread-local map |
| new DefaultThreadContextMap(true).clear(); |
| } |
| |
| @Test |
| public void testEqualsVsSameKind() { |
| final DefaultThreadContextStack stack1 = createStack(); |
| final DefaultThreadContextStack stack2 = createStack(); |
| assertEquals(stack1, stack1); |
| assertEquals(stack2, stack2); |
| assertEquals(stack1, stack2); |
| assertEquals(stack2, stack1); |
| } |
| |
| @Test |
| public void testEqualsVsMutable() { |
| final ThreadContextStack stack1 = createStack(); |
| final ThreadContextStack stack2 = MutableThreadContextStackTest.createStack(); |
| assertEquals(stack1, stack1); |
| assertEquals(stack2, stack2); |
| assertEquals(stack1, stack2); |
| assertEquals(stack2, stack1); |
| } |
| |
| @Test |
| public void testHashCodeVsSameKind() { |
| final DefaultThreadContextStack stack1 = createStack(); |
| final DefaultThreadContextStack stack2 = createStack(); |
| assertEquals(stack1.hashCode(), stack2.hashCode()); |
| } |
| |
| @Test |
| public void testImmutableOrNullReturnsNullIfUseStackIsFalse() { |
| final DefaultThreadContextStack stack = new DefaultThreadContextStack(false); |
| stack.clear(); |
| assertNull(stack.getImmutableStackOrNull()); |
| } |
| |
| @Test |
| public void testImmutableOrNullReturnsNullIfStackIsEmpty() { |
| final DefaultThreadContextStack stack = new DefaultThreadContextStack(true); |
| stack.clear(); |
| assertTrue(stack.isEmpty()); |
| assertNull(stack.getImmutableStackOrNull()); |
| } |
| |
| @Test |
| public void testImmutableOrNullReturnsCopyOfContents() { |
| final DefaultThreadContextStack stack = createStack(); |
| assertFalse(stack.isEmpty()); |
| final ContextStack actual = stack.getImmutableStackOrNull(); |
| assertNotNull(actual); |
| assertEquals(stack, actual); |
| } |
| |
| @Test |
| public void testModifyingImmutableOrNullThrowsException() { |
| final DefaultThreadContextStack stack = createStack(); |
| final int originalSize = stack.size(); |
| assertTrue(originalSize > 0); |
| final ContextStack actual = stack.getImmutableStackOrNull(); |
| assertEquals(originalSize, actual.size()); |
| |
| assertThrows(UnsupportedOperationException.class, () -> actual.pop()); |
| } |
| |
| @Test |
| public void testDoesNothingIfConstructedWithUseStackIsFalse() { |
| final DefaultThreadContextStack stack = new DefaultThreadContextStack(false); |
| stack.clear(); |
| assertTrue(stack.isEmpty()); |
| stack.push("msg"); |
| |
| // nothing was added |
| assertTrue(stack.isEmpty()); |
| assertEquals(0, stack.size()); |
| } |
| |
| @Test |
| public void testPushAndAddIncreaseStack() { |
| final DefaultThreadContextStack stack = new DefaultThreadContextStack(true); |
| stack.clear(); |
| assertTrue(stack.isEmpty()); |
| stack.push("msg1"); |
| stack.add("msg2"); |
| |
| assertEquals(2, stack.size()); |
| } |
| |
| @Test |
| public void testPeekReturnsLastAddedItem() { |
| final DefaultThreadContextStack stack = new DefaultThreadContextStack(true); |
| stack.clear(); |
| assertTrue(stack.isEmpty()); |
| stack.push("msg1"); |
| stack.add("msg2"); |
| |
| assertEquals(2, stack.size()); |
| assertEquals("msg2", stack.peek()); |
| |
| stack.push("msg3"); |
| assertEquals("msg3", stack.peek()); |
| } |
| |
| @Test |
| public void testPopRemovesLastAddedItem() { |
| final DefaultThreadContextStack stack = createStack(); |
| assertEquals(3, stack.getDepth()); |
| |
| assertEquals("msg3", stack.pop()); |
| assertEquals(2, stack.size()); |
| assertEquals(2, stack.getDepth()); |
| |
| assertEquals("msg2", stack.pop()); |
| assertEquals(1, stack.size()); |
| assertEquals(1, stack.getDepth()); |
| |
| assertEquals("msg1", stack.pop()); |
| assertEquals(0, stack.size()); |
| assertEquals(0, stack.getDepth()); |
| } |
| |
| @Test |
| public void testAsList() { |
| final DefaultThreadContextStack stack = new DefaultThreadContextStack(true); |
| stack.clear(); |
| assertTrue(stack.isEmpty()); |
| stack.push("msg1"); |
| stack.add("msg2"); |
| stack.push("msg3"); |
| |
| assertEquals(Arrays.asList("msg1", "msg2", "msg3"), stack.asList()); |
| } |
| |
| @Test |
| public void testTrim() { |
| final DefaultThreadContextStack stack = createStack(); |
| |
| stack.trim(1); |
| assertEquals(1, stack.size()); |
| assertEquals("msg1", stack.peek()); |
| } |
| |
| @Test |
| public void testCopy() { |
| final DefaultThreadContextStack stack = createStack(); |
| |
| final ThreadContextStack copy = stack.copy(); |
| assertEquals(3, copy.size()); |
| assertTrue(copy.containsAll(Arrays.asList("msg1", "msg2", "msg3"))); |
| |
| // clearing stack does not affect copy |
| stack.clear(); |
| assertTrue(stack.isEmpty()); |
| assertEquals(3, copy.size()); // not affected |
| assertTrue(copy.containsAll(Arrays.asList("msg1", "msg2", "msg3"))); |
| |
| // adding to copy does not affect stack |
| copy.add("other"); |
| assertEquals(4, copy.size()); // not affected |
| assertTrue(stack.isEmpty()); |
| |
| // adding to stack does not affect copy |
| stack.push("newStackMsg"); |
| assertEquals(1, stack.size()); |
| assertEquals(4, copy.size()); // not affected |
| |
| // clearing copy does not affect stack |
| copy.clear(); |
| assertTrue(copy.isEmpty()); |
| assertEquals(1, stack.size()); |
| } |
| |
| @Test |
| public void testClear() { |
| final DefaultThreadContextStack stack = createStack(); |
| |
| stack.clear(); |
| assertTrue(stack.isEmpty()); |
| } |
| |
| /** |
| * @return |
| */ |
| static DefaultThreadContextStack createStack() { |
| final DefaultThreadContextStack stack = new DefaultThreadContextStack(true); |
| stack.clear(); |
| assertTrue(stack.isEmpty()); |
| stack.push("msg1"); |
| stack.add("msg2"); |
| stack.push("msg3"); |
| assertEquals(3, stack.size()); |
| return stack; |
| } |
| |
| @Test |
| public void testContains() { |
| final DefaultThreadContextStack stack = createStack(); |
| |
| assertTrue(stack.contains("msg1")); |
| assertTrue(stack.contains("msg2")); |
| assertTrue(stack.contains("msg3")); |
| } |
| |
| @Test |
| public void testIteratorReturnsInListOrderNotStackOrder() { |
| final DefaultThreadContextStack stack = createStack(); |
| |
| final Iterator<String> iter = stack.iterator(); |
| assertTrue(iter.hasNext()); |
| assertEquals("msg1", iter.next()); |
| assertTrue(iter.hasNext()); |
| assertEquals("msg2", iter.next()); |
| assertTrue(iter.hasNext()); |
| assertEquals("msg3", iter.next()); |
| assertFalse(iter.hasNext()); |
| } |
| |
| @Test |
| public void testToArray() { |
| final DefaultThreadContextStack stack = createStack(); |
| |
| final String[] expecteds = { "msg1", "msg2", "msg3" }; |
| assertArrayEquals(expecteds, stack.toArray()); |
| } |
| |
| @Test |
| public void testToArrayTArray() { |
| final DefaultThreadContextStack stack = createStack(); |
| |
| final String[] expecteds = { "msg1", "msg2", "msg3" }; |
| final String[] result = new String[3]; |
| assertArrayEquals(expecteds, stack.toArray(result)); |
| assertSame(result, stack.toArray(result)); |
| } |
| |
| @Test |
| public void testRemove() { |
| final DefaultThreadContextStack stack = createStack(); |
| assertTrue(stack.containsAll(Arrays.asList("msg1", "msg2", "msg3"))); |
| |
| stack.remove("msg1"); |
| assertEquals(2, stack.size()); |
| assertTrue(stack.containsAll(Arrays.asList("msg2", "msg3"))); |
| assertEquals("msg3", stack.peek()); |
| |
| stack.remove("msg3"); |
| assertEquals(1, stack.size()); |
| assertTrue(stack.containsAll(Collections.singletonList("msg2"))); |
| assertEquals("msg2", stack.peek()); |
| } |
| |
| @Test |
| public void testContainsAll() { |
| final DefaultThreadContextStack stack = createStack(); |
| |
| assertTrue(stack.containsAll(Arrays.asList("msg1", "msg2", "msg3"))); |
| } |
| |
| @Test |
| public void testAddAll() { |
| final DefaultThreadContextStack stack = createStack(); |
| |
| stack.addAll(Arrays.asList("msg4", "msg5")); |
| assertEquals(5, stack.size()); |
| assertTrue(stack.contains("msg1")); |
| assertTrue(stack.contains("msg2")); |
| assertTrue(stack.contains("msg3")); |
| assertTrue(stack.contains("msg4")); |
| assertTrue(stack.contains("msg5")); |
| } |
| |
| @Test |
| public void testRemoveAll() { |
| final DefaultThreadContextStack stack = createStack(); |
| |
| stack.removeAll(Arrays.asList("msg1", "msg3")); |
| assertEquals(1, stack.size()); |
| assertFalse(stack.contains("msg1")); |
| assertTrue(stack.contains("msg2")); |
| assertFalse(stack.contains("msg3")); |
| } |
| |
| @Test |
| public void testRetainAll() { |
| final DefaultThreadContextStack stack = createStack(); |
| |
| stack.retainAll(Arrays.asList("msg1", "msg3")); |
| assertEquals(2, stack.size()); |
| assertTrue(stack.contains("msg1")); |
| assertFalse(stack.contains("msg2")); |
| assertTrue(stack.contains("msg3")); |
| } |
| |
| @Test |
| public void testToStringShowsListContents() { |
| final DefaultThreadContextStack stack = new DefaultThreadContextStack(true); |
| stack.clear(); |
| assertEquals("[]", stack.toString()); |
| |
| stack.push("msg1"); |
| stack.add("msg2"); |
| stack.push("msg3"); |
| assertEquals("[msg1, msg2, msg3]", stack.toString()); |
| |
| stack.retainAll(Arrays.asList("msg1", "msg3")); |
| assertEquals("[msg1, msg3]", stack.toString()); |
| } |
| } |