| /* |
| * 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.htrace.core; |
| |
| import java.util.Random; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class TestSpanId { |
| private void testRoundTrip(SpanId id) throws Exception { |
| String str = id.toString(); |
| SpanId id2 = SpanId.fromString(str); |
| Assert.assertEquals(id, id2); |
| } |
| |
| @Test |
| public void testToStringAndFromString() throws Exception { |
| testRoundTrip(SpanId.INVALID); |
| testRoundTrip(new SpanId(0x1234567812345678L, 0x1234567812345678L)); |
| testRoundTrip(new SpanId(0xf234567812345678L, 0xf234567812345678L)); |
| testRoundTrip(new SpanId(0xffffffffffffffffL, 0xffffffffffffffffL)); |
| Random rand = new Random(12345); |
| for (int i = 0; i < 100; i++) { |
| testRoundTrip(new SpanId(rand.nextLong(), rand.nextLong())); |
| } |
| } |
| |
| @Test |
| public void testValidAndInvalidIds() throws Exception { |
| Assert.assertFalse(SpanId.INVALID.isValid()); |
| Assert.assertTrue( |
| new SpanId(0x1234567812345678L, 0x1234567812345678L).isValid()); |
| Assert.assertTrue( |
| new SpanId(0xf234567812345678L, 0xf234567812345678L).isValid()); |
| } |
| |
| private void expectLessThan(SpanId a, SpanId b) throws Exception { |
| int cmp = a.compareTo(b); |
| Assert.assertTrue("Expected " + a + " to be less than " + b, |
| (cmp < 0)); |
| int cmp2 = b.compareTo(a); |
| Assert.assertTrue("Expected " + b + " to be greater than " + a, |
| (cmp2 > 0)); |
| } |
| |
| @Test |
| public void testIdComparisons() throws Exception { |
| expectLessThan(new SpanId(0x0000000000000001L, 0x0000000000000001L), |
| new SpanId(0x0000000000000001L, 0x0000000000000002L)); |
| expectLessThan(new SpanId(0x0000000000000001L, 0x0000000000000001L), |
| new SpanId(0x0000000000000002L, 0x0000000000000000L)); |
| expectLessThan(SpanId.INVALID, |
| new SpanId(0xffffffffffffffffL, 0xffffffffffffffffL)); |
| expectLessThan(new SpanId(0x1234567812345678L, 0x1234567812345678L), |
| new SpanId(0x1234567812345678L, 0xf234567812345678L)); |
| } |
| } |