timing.core: add ArrayListStore implementing ISegmentStore
[deliverable/tracecompass.git] / analysis / org.eclipse.tracecompass.analysis.timing.core.tests / src / org / eclipse / tracecompass / analysis / timing / core / tests / store / ArrayListStoreTest.java
diff --git a/analysis/org.eclipse.tracecompass.analysis.timing.core.tests/src/org/eclipse/tracecompass/analysis/timing/core/tests/store/ArrayListStoreTest.java b/analysis/org.eclipse.tracecompass.analysis.timing.core.tests/src/org/eclipse/tracecompass/analysis/timing/core/tests/store/ArrayListStoreTest.java
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+/*******************************************************************************
+ * Copyright (c) 2016 Ericsson
+ *
+ * All rights reserved. This program and the accompanying materials are
+ * made available under the terms of the Eclipse Public License v1.0 which
+ * accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *******************************************************************************/
+
+package org.eclipse.tracecompass.analysis.timing.core.tests.store;
+
+import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import java.util.Arrays;
+import java.util.List;
+
+import org.eclipse.jdt.annotation.NonNull;
+import org.eclipse.tracecompass.internal.analysis.timing.core.store.ArrayListStore;
+import org.eclipse.tracecompass.segmentstore.core.BasicSegment;
+import org.eclipse.tracecompass.segmentstore.core.ISegment;
+import org.eclipse.tracecompass.segmentstore.core.ISegmentStore;
+import org.eclipse.tracecompass.segmentstore.core.treemap.TreeMapStore;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Iterables;
+import com.google.common.collect.Lists;
+
+/**
+ * Unit tests for intersecting elements in an ArrayListStore
+ *
+ * Originally the TreeMapStoreTest, copied for this internal implementation. The
+ * test was barely changed as it tests the interface and not the internals.
+ *
+ * @author France Lapointe Nguyen
+ * @author Matthew Khouzam
+ */
+public class ArrayListStoreTest {
+
+    private ISegmentStore<@NonNull ISegment> fSegmentStore;
+
+    private static final @NonNull ISegment SEGMENT_2_6 = new BasicSegment(2, 6);
+    private static final @NonNull ISegment SEGMENT_4_6 = new BasicSegment(4, 6);
+    private static final @NonNull ISegment SEGMENT_4_8 = new BasicSegment(4, 8);
+    private static final @NonNull ISegment SEGMENT_6_8 = new BasicSegment(6, 8);
+    private static final @NonNull ISegment SEGMENT_10_14 = new BasicSegment(10, 14);
+
+    private static final List<ISegment> SEGMENTS = ImmutableList.of(SEGMENT_2_6, SEGMENT_4_6, SEGMENT_4_8, SEGMENT_6_8, SEGMENT_10_14);
+    private static final List<ISegment> REVERSE_SEGMENTS = Lists.reverse(SEGMENTS);
+
+    /**
+     * Initialize data (test vector) that will be tested
+     */
+    @Before
+    public void setup() {
+        fSegmentStore = new ArrayListStore<>();
+        for (ISegment segment : SEGMENTS) {
+            fSegmentStore.add(checkNotNull(segment));
+        }
+    }
+
+    /**
+     * Dispose of the segment store
+     */
+    @After
+    public void teardown() {
+        fSegmentStore.dispose();
+    }
+
+    /**
+     * Testing method size()
+     */
+    @Test
+    public void testSize() {
+        assertEquals(SEGMENTS.size(), fSegmentStore.size());
+    }
+
+    /**
+     * Test the contains() method.
+     */
+    @Test
+    public void testContains() {
+        ISegment otherSegment = new BasicSegment(0, 20);
+
+        assertTrue(fSegmentStore.contains(SEGMENT_2_6));
+        assertTrue(fSegmentStore.contains(SEGMENT_4_8));
+        assertFalse(fSegmentStore.contains(otherSegment));
+    }
+
+    /**
+     * Test the toArray() method.
+     */
+    @Test
+    public void testToObjectArray() {
+        Object[] array = fSegmentStore.toArray();
+
+        assertEquals(SEGMENTS.size(), array.length);
+        assertTrue(Arrays.asList(array).containsAll(SEGMENTS));
+    }
+
+    /**
+     * Test the toArray(T[]) method.
+     */
+    @Test
+    public void testToSpecificArray() {
+        ISegment[] array = fSegmentStore.toArray(new ISegment[0]);
+
+        assertEquals(SEGMENTS.size(), array.length);
+        assertTrue(Arrays.asList(array).containsAll(SEGMENTS));
+    }
+
+    /**
+     * Test the toArray(T[]) method with a subtype of ISegment.
+     */
+    @Test
+    public void testToSpecifyArraySubtype() {
+        TreeMapStore<@NonNull BasicSegment> tms2 = new TreeMapStore<>();
+        BasicSegment otherSegment = new BasicSegment(2, 6);
+        tms2.add(otherSegment);
+        BasicSegment[] array = tms2.toArray(new BasicSegment[0]);
+
+        assertEquals(1, array.length);
+        assertTrue(Arrays.asList(array).contains(otherSegment));
+
+        tms2.dispose();
+    }
+
+    /**
+     * Test the iteration order of the complete segment store.
+     */
+    @Test
+    public void testIterationOrder() {
+        int i = 0;
+        for (ISegment segment : fSegmentStore) {
+            assertEquals(SEGMENTS.get(i++), segment);
+        }
+    }
+
+    /**
+     * Test the iteration order when the elements are not inserted in sorted
+     * order.
+     */
+    @Test
+    public void testIterationOrderNonSortedInsertion() {
+        /* Prepare the segment store, we don't use the 'fixture' in this test */
+        TreeMapStore<@NonNull ISegment> store = new TreeMapStore<>();
+        for (ISegment segment : REVERSE_SEGMENTS) {
+            store.add(checkNotNull(segment));
+        }
+
+        /*
+         * Test each element one by one, the iteration order should follow the
+         * start times, not the insertion order.
+         */
+        int i = 0;
+        for (ISegment segment : store) {
+            assertEquals(SEGMENTS.get(i++), segment);
+        }
+
+        /* Manually dispose our own store */
+        store.dispose();
+    }
+
+    /**
+     * Testing method getIntersectingElements(long start, long end)
+     */
+    @Test
+    public void testGetIntersectingElementsRange() {
+
+        Iterable<ISegment> intersectingElements;
+
+        /*
+         * Range that does not include any segment
+         */
+        intersectingElements = fSegmentStore.getIntersectingElements(16, 20);
+        assertEquals(0, Iterables.size(intersectingElements));
+
+        /*
+         * Range start time : Before first segment start time Range end time :
+         * After last segment end time
+         */
+        intersectingElements = fSegmentStore.getIntersectingElements(1, 15);
+        assertEquals(5, Iterables.size(intersectingElements));
+
+        /*
+         * Range start time : On first segment start time Range end time : On
+         * last segment end time
+         */
+        intersectingElements = fSegmentStore.getIntersectingElements(2, 14);
+        assertEquals(5, Iterables.size(intersectingElements));
+
+        /*
+         * Range start time : After one segment start time Range end time :
+         * Before one segment end time
+         */
+        intersectingElements = fSegmentStore.getIntersectingElements(11, 13);
+        assertEquals(1, Iterables.size(intersectingElements));
+        assertEquals(SEGMENT_10_14, Iterables.getOnlyElement(intersectingElements));
+
+        /*
+         * Range start time : On one segment start time Range end time : On one
+         * segment end time
+         */
+        intersectingElements = fSegmentStore.getIntersectingElements(10, 14);
+        assertEquals(1, Iterables.size(intersectingElements));
+        assertEquals(SEGMENT_10_14, Iterables.getOnlyElement(intersectingElements));
+
+        /*
+         * Range start time : On last segment end time Range end time : After
+         * last segment end time
+         */
+        intersectingElements = fSegmentStore.getIntersectingElements(14, 18);
+        assertEquals(1, Iterables.size(intersectingElements));
+        assertEquals(SEGMENT_10_14, Iterables.getOnlyElement(intersectingElements));
+
+        /*
+         * Range start time : Before first segment start time Range end time :
+         * On first segment start time
+         */
+        intersectingElements = fSegmentStore.getIntersectingElements(1, 2);
+        assertEquals(1, Iterables.size(intersectingElements));
+        assertEquals(SEGMENT_2_6, Iterables.getOnlyElement(intersectingElements));
+    }
+
+    /**
+     * Testing method getIntersectingElements(long start, long end)
+     */
+    @Test
+    public void testGetIntersectingElementsTime() {
+
+        Iterable<ISegment> intersectingElements;
+
+        /*
+         * Time between segment start time and end time
+         */
+        intersectingElements = fSegmentStore.getIntersectingElements(3);
+        assertEquals(1, Iterables.size(intersectingElements));
+        assertEquals(SEGMENT_2_6, Iterables.getOnlyElement(intersectingElements));
+
+        /*
+         * Time on segment start time
+         */
+        intersectingElements = fSegmentStore.getIntersectingElements(2);
+        assertEquals(1, Iterables.size(intersectingElements));
+        assertEquals(SEGMENT_2_6, Iterables.getOnlyElement(intersectingElements));
+
+        /*
+         * Time on segment end time
+         */
+        intersectingElements = fSegmentStore.getIntersectingElements(14);
+        assertEquals(1, Iterables.size(intersectingElements));
+        assertEquals(SEGMENT_10_14, Iterables.getOnlyElement(intersectingElements));
+
+        /*
+         * Time overlapping many segments
+         */
+        intersectingElements = fSegmentStore.getIntersectingElements(6);
+        assertEquals(4, Iterables.size(intersectingElements));
+
+        /*
+         * Time between segments
+         */
+        intersectingElements = fSegmentStore.getIntersectingElements(9);
+        assertEquals(0, Iterables.size(intersectingElements));
+
+        /*
+         * Time before all segment start time
+         */
+        intersectingElements = fSegmentStore.getIntersectingElements(1);
+        assertEquals(0, Iterables.size(intersectingElements));
+
+        /*
+         * Time after all segment end time
+         */
+        intersectingElements = fSegmentStore.getIntersectingElements(15);
+        assertEquals(0, Iterables.size(intersectingElements));
+    }
+
+    /**
+     * Testing method getIntersectingElements(long start, long end)
+     */
+    @Test
+    public void testDispose() {
+        TreeMapStore<@NonNull ISegment> store = new TreeMapStore<>();
+        store.add(SEGMENT_2_6);
+        store.dispose();
+        assertEquals(0, store.size());
+    }
+}
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