1 files changed, 43 insertions, 0 deletions
diff --git a/predicate-search/src/test/java/com/yahoo/search/predicate/index/IntervalPostingListTest.java b/predicate-search/src/test/java/com/yahoo/search/predicate/index/IntervalPostingListTest.java
new file mode 100644
index 00000000000..41f4ba55750
--- /dev/null
+++ b/predicate-search/src/test/java/com/yahoo/search/predicate/index/IntervalPostingListTest.java
@@ -0,0 +1,43 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.search.predicate.index;
+
+import com.yahoo.search.predicate.SubqueryBitmap;
+import org.junit.Test;
+
+import java.util.Arrays;
+
+import static junit.framework.TestCase.assertFalse;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class IntervalPostingListTest {
+    @Test
+    public void requireThatPostingListCanIterate() {
+        PredicateIntervalStore.Builder builder = new PredicateIntervalStore.Builder();
+        int ref1 = builder.insert(Arrays.asList(0x1ffff));
+        int ref2 = builder.insert(Arrays.asList(0x1ffff));
+        int ref3 = builder.insert(Arrays.asList(0x10001, 0x2ffff));
+        IntervalPostingList postingList = new IntervalPostingList(
+                builder.build(), new int[]{2, 4, 6}, new int[] {ref1, ref2, ref3}, SubqueryBitmap.ALL_SUBQUERIES);
+        assertEquals(-1, postingList.getDocId());
+        assertEquals(0, postingList.getInterval());
+        assertEquals(0xffffffffffffffffL, postingList.getSubquery());
+
+        assertTrue(postingList.nextDocument(0));
+        assertTrue(postingList.prepareIntervals());
+        assertEquals(2, postingList.getDocId());
+        assertEquals(0x1ffff, postingList.getInterval());
+        assertFalse(postingList.nextInterval());
+
+        assertTrue(postingList.nextDocument(4));
+        assertTrue(postingList.prepareIntervals());
+        assertEquals(6, postingList.getDocId());
+        assertEquals(0x10001, postingList.getInterval());
+        assertTrue(postingList.nextInterval());
+        assertEquals(0x2ffff, postingList.getInterval());
+        assertFalse(postingList.nextInterval());
+
+        assertFalse(postingList.nextDocument(8));
+    }
+
+}