1 files changed, 361 insertions, 0 deletions
diff --git a/feature-pooling-messages/src/test/java/org/onap/policy/drools/pooling/message/BucketAssignmentsTest.java b/feature-pooling-messages/src/test/java/org/onap/policy/drools/pooling/message/BucketAssignmentsTest.java
new file mode 100644
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+++ b/feature-pooling-messages/src/test/java/org/onap/policy/drools/pooling/message/BucketAssignmentsTest.java
@@ -0,0 +1,361 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2018, 2020 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2024 Nordix Foundation.
+ * ================================================================================
+ * 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.assertj.core.api.Assertions.assertThatCode;
+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.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
+
+import java.util.Arrays;
+import java.util.SortedSet;
+import java.util.TreeSet;
+import org.junit.jupiter.api.Test;
+import org.onap.policy.drools.pooling.PoolingFeatureException;
+
+class BucketAssignmentsTest {
+
+    @Test
+    void testBucketAssignments() {
+        assertThatCode(BucketAssignments::new).doesNotThrowAnyException();
+    }
+
+    @Test
+    void testBucketAssignmentsStringArray() {
+        String[] arr = {"abc", "def"};
+        BucketAssignments asgn = new BucketAssignments(arr);
+
+        assertNotNull(asgn.getHostArray());
+        assertEquals(Arrays.toString(arr), Arrays.toString(asgn.getHostArray()));
+    }
+
+    @Test
+    void testGetHostArray_testSetHostArray() {
+
+        String[] arr = {"abc", "def"};
+        BucketAssignments asgn = new BucketAssignments(arr);
+
+        assertNotNull(asgn.getHostArray());
+        assertEquals(Arrays.toString(arr), Arrays.toString(asgn.getHostArray()));
+
+        String[] arr2 = {"xyz"};
+        asgn.setHostArray(arr2);
+
+        assertNotNull(asgn.getHostArray());
+        assertEquals(Arrays.toString(arr2), Arrays.toString(asgn.getHostArray()));
+    }
+
+    @Test
+    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
+    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
+    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
+    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);
+
+        /*
+         * get assignments for consecutive integers, including negative numbers and
+         * numbers extending past the length of the array.
+         *
+         */
+        TreeSet<String> seen = new TreeSet<>();
+        for (int x = -1; x < arr.length + 2; ++x) {
+            seen.add(asgn.getAssignedHost(x));
+        }
+
+        TreeSet<String> expected = new TreeSet<>(Arrays.asList(arr));
+        assertEquals(expected, seen);
+
+        // try a much bigger number
+        assertNotNull(asgn.getAssignedHost(arr.length * 1000));
+    }
+
+    @Test
+    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
+    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
+    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"});
+        assertNotEquals(code, asgn.hashCode());
+    }
+
+    @Test
+    void testEquals() {
+        // null object
+        BucketAssignments asgn = new BucketAssignments();
+        assertNotEquals(null, asgn);
+
+        // same object
+        asgn = new BucketAssignments();
+        assertEquals(asgn, asgn);
+
+        // different class of object
+        asgn = new BucketAssignments();
+        assertNotEquals("not an assignment object", asgn);
+
+        assertNotEquals(asgn, new BucketAssignments(new String[] {"abc"}));
+
+        // with null assignments
+        asgn = new BucketAssignments();
+        assertEquals(asgn, new BucketAssignments());
+
+        // with empty array
+        asgn = new BucketAssignments(new String[0]);
+        assertEquals(asgn, asgn);
+
+        assertNotEquals(asgn, new BucketAssignments());
+        assertNotEquals(asgn, new BucketAssignments(new String[] {"abc"}));
+
+        // with null items
+        String[] arr = {"abc", null, "def"};
+        asgn = new BucketAssignments(arr);
+        assertEquals(asgn, asgn);
+        assertEquals(asgn, new BucketAssignments(arr));
+        assertEquals(asgn, new BucketAssignments(new String[] {"abc", null, "def"}));
+
+        assertNotEquals(asgn, new BucketAssignments());
+        assertNotEquals(asgn, new BucketAssignments(new String[] {"abc", null, "XYZ"}));
+
+        assertNotEquals(asgn, 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
+        }
+    }
+
+}