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/*
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.drools.pooling.message;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.util.SortedSet;
import java.util.TreeSet;
import org.junit.Test;
import org.onap.policy.drools.pooling.PoolingFeatureException;
public class BucketAssignmentsTest {
@Test
public void testBucketAssignments() {
new BucketAssignments();
}
@Test
public void testBucketAssignmentsStringArray() {
String arr[] = {"abc", "def"};
BucketAssignments asgn = new BucketAssignments(arr);
assertNotNull(asgn.getHostArray());
assertEquals(arr.toString(), asgn.getHostArray().toString());
}
@Test
public void testGetHostArray_testSetHostArray() {
String arr[] = {"abc", "def"};
BucketAssignments asgn = new BucketAssignments(arr);
assertNotNull(asgn.getHostArray());
assertEquals(arr.toString(), asgn.getHostArray().toString());
String arr2[] = {"xyz"};
asgn.setHostArray(arr2);
assertNotNull(asgn.getHostArray());
assertEquals(arr2.toString(), asgn.getHostArray().toString());
}
@Test
public void testGetLeader() {
// host array is null
BucketAssignments asgn = new BucketAssignments();
assertNull(asgn.getLeader());
// array is non-null, but empty
asgn.setHostArray(new String[0]);
assertNull(asgn.getLeader());
// all entries are null
asgn.setHostArray(new String[5]);
assertNull(asgn.getLeader());
// some entries are null
asgn.setHostArray(new String[] {null, "abc", null});
assertEquals("abc", asgn.getLeader());
// only one entry
asgn.setHostArray(new String[] {"abc"});
assertEquals("abc", asgn.getLeader());
// first is least
asgn.setHostArray(new String[] {"Ahost", "Bhost", "Chost"});
assertEquals("Ahost", asgn.getLeader());
// middle is least
asgn.setHostArray(new String[] {"Xhost", "Bhost", "Chost"});
assertEquals("Bhost", asgn.getLeader());
// last is least
asgn.setHostArray(new String[] {"Xhost", "Yhost", "Chost"});
assertEquals("Chost", asgn.getLeader());
// multiple entries
asgn.setHostArray(new String[] {"Xhost", "Bhost", "Chost", "Bhost", "Xhost", "Chost"});
assertEquals("Bhost", asgn.getLeader());
}
@Test
public void testHasAssignment() {
// host array is null
BucketAssignments asgn = new BucketAssignments();
assertFalse(asgn.hasAssignment("abc"));
// array is non-null, but empty
asgn.setHostArray(new String[0]);
assertFalse(asgn.hasAssignment("abc"));
// all entries are null
asgn.setHostArray(new String[5]);
assertFalse(asgn.hasAssignment("abc"));
// some entries are null
asgn.setHostArray(new String[] {null, "abc", null});
assertTrue(asgn.hasAssignment("abc"));
// only one entry
asgn.setHostArray(new String[] {"abc"});
assertTrue(asgn.hasAssignment("abc"));
// appears as first entry
asgn.setHostArray(new String[] {"abc", "Bhost", "Chost"});
assertTrue(asgn.hasAssignment("abc"));
// appears in middle
asgn.setHostArray(new String[] {"Xhost", "abc", "Chost"});
assertTrue(asgn.hasAssignment("abc"));
// appears last
asgn.setHostArray(new String[] {"Xhost", "Yhost", "abc"});
assertTrue(asgn.hasAssignment("abc"));
// appears repeatedly
asgn.setHostArray(new String[] {"Xhost", "Bhost", "Chost", "Bhost", "Xhost", "Chost"});
assertTrue(asgn.hasAssignment("Bhost"));
}
@Test
public void testGetAllHosts() {
// host array is null
BucketAssignments asgn = new BucketAssignments();
assertEquals("[]", getSortedHosts(asgn).toString());
// array is non-null, but empty
asgn.setHostArray(new String[0]);
assertEquals("[]", getSortedHosts(asgn).toString());
// all entries are null
asgn.setHostArray(new String[5]);
assertEquals("[]", getSortedHosts(asgn).toString());
// some entries are null
asgn.setHostArray(new String[] {null, "abc", null});
assertEquals("[abc]", getSortedHosts(asgn).toString());
// only one entry
asgn.setHostArray(new String[] {"abc"});
assertEquals("[abc]", getSortedHosts(asgn).toString());
// multiple, repeated entries
asgn.setHostArray(new String[] {"def", "abc", "def", "ghi", "def", "def", "xyz"});
assertEquals("[abc, def, ghi, xyz]", getSortedHosts(asgn).toString());
}
/**
* Gets the hosts, sorted, so that the order is predictable.
*
* @param asgn assignment whose hosts are to be retrieved
* @return a new, sorted set of hosts
*/
private SortedSet<String> getSortedHosts(BucketAssignments asgn) {
return new TreeSet<>(asgn.getAllHosts());
}
@Test
public void testGetAssignedHost() {
// host array is null
BucketAssignments asgn = new BucketAssignments();
assertNull(asgn.getAssignedHost(3));
// array is non-null, but empty
asgn.setHostArray(new String[0]);
assertNull(asgn.getAssignedHost(3));
// all entries are null
asgn.setHostArray(new String[5]);
assertNull(asgn.getAssignedHost(3));
// multiple, repeated entries
String[] arr = {"def", "abc", "def", "ghi", "def", "def", "xyz"};
asgn.setHostArray(arr);
for (int x = 0; x < arr.length; ++x) {
assertEquals("x=" + x, arr[x], asgn.getAssignedHost(x));
}
// negative
assertNull(asgn.getAssignedHost(-1));
// beyond end
assertNull(asgn.getAssignedHost(arr.length));
assertNull(asgn.getAssignedHost(arr.length + 1));
}
@Test
public void testSize() {
// host array is null
BucketAssignments asgn = new BucketAssignments();
assertEquals(0, asgn.size());
// array is non-null, but empty
asgn.setHostArray(new String[0]);
assertEquals(0, asgn.size());
// all entries are null
asgn.setHostArray(new String[5]);
assertEquals(5, asgn.size());
// multiple, repeated entries
String[] arr = {"def", "abc", "def", "ghi", "def", "def", "xyz"};
asgn.setHostArray(arr);
assertEquals(arr.length, asgn.size());
}
@Test
public void testCheckValidity() throws Exception {
// host array is null
BucketAssignments asgn = new BucketAssignments();
expectException(asgn);
// array is non-null, but empty
asgn.setHostArray(new String[0]);
expectException(asgn);
// array is too big
asgn.setHostArray(new String[BucketAssignments.MAX_BUCKETS + 1]);
expectException(asgn);
// all entries are null
asgn.setHostArray(new String[5]);
expectException(asgn);
// null at the beginning
asgn.setHostArray(new String[] {null, "Bhost", "Chost"});
expectException(asgn);
// null in the middle
asgn.setHostArray(new String[] {"Ahost", null, "Chost"});
expectException(asgn);
// null at the end
asgn.setHostArray(new String[] {"Ahost", "Bhost", null});
expectException(asgn);
// only one entry
asgn.setHostArray(new String[] {"abc"});
asgn.checkValidity();
// multiple entries
asgn.setHostArray(new String[] {"Ahost", "Bhost", "Chost"});
asgn.checkValidity();
}
@Test
public void testHashCode() {
// with null assignments
BucketAssignments asgn = new BucketAssignments();
asgn.hashCode();
// with empty array
asgn = new BucketAssignments(new String[0]);
asgn.hashCode();
// with null items
asgn = new BucketAssignments(new String[] {"abc", null, "def"});
asgn.hashCode();
// same assignments
asgn = new BucketAssignments(new String[] {"abc", null, "def"});
int code = asgn.hashCode();
asgn = new BucketAssignments(new String[] {"abc", null, "def"});
assertEquals(code, asgn.hashCode());
// slightly different values (i.e., changed "def" to "eef")
asgn = new BucketAssignments(new String[] {"abc", null, "eef"});
assertTrue(code != asgn.hashCode());
}
@Test
public void testEquals() {
// null object
BucketAssignments asgn = new BucketAssignments();
assertFalse(asgn.equals(null));
// same object
asgn = new BucketAssignments();
assertTrue(asgn.equals(asgn));
// different class of object
asgn = new BucketAssignments();
assertFalse(asgn.equals("not an assignment object"));
// with null assignments
asgn = new BucketAssignments();
assertTrue(asgn.equals(new BucketAssignments()));
assertFalse(asgn.equals(new BucketAssignments(new String[] {"abc"})));
// with empty array
asgn = new BucketAssignments(new String[0]);
assertTrue(asgn.equals(asgn));
assertFalse(asgn.equals(new BucketAssignments()));
assertFalse(asgn.equals(new BucketAssignments(new String[] {"abc"})));
// with null items
String[] arr = {"abc", null, "def"};
asgn = new BucketAssignments(arr);
assertTrue(asgn.equals(asgn));
assertTrue(asgn.equals(new BucketAssignments(arr)));
assertTrue(asgn.equals(new BucketAssignments(new String[] {"abc", null, "def"})));
assertFalse(asgn.equals(new BucketAssignments()));
assertFalse(asgn.equals(new BucketAssignments(new String[] {"abc", null, "XYZ"})));
assertFalse(asgn.equals(new BucketAssignments()));
}
/**
* Expects an exception when checkValidity() is called.
*
* @param asgn assignments to be checked
*/
private void expectException(BucketAssignments asgn) {
try {
asgn.checkValidity();
fail("missing exception");
} catch (PoolingFeatureException expected) {
// success
}
}
}
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