Integration of TOS: Add ObjectUtils UUIDUtils and Range.

hadoop-cloud-storage-project/hadoop-tos/src/test/java/org/apache/hadoop/fs/tosfs/util/TestRange.java

@@ -0,0 +1,87 @@
+/*
+ * 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.hadoop.fs.tosfs.util;
+
+import org.apache.hadoop.thirdparty.com.google.common.collect.ImmutableList;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestRange {
+
+  @Test
+  public void testInclude() {
+    Object[][] inputs = new Object[][]{
+        new Object[]{Range.of(0, 0), 0L, false},
+        new Object[]{Range.of(0, 1), 0L, true},
+        new Object[]{Range.of(1, 1), 0L, false},
+        new Object[]{Range.of(1, 1), 1L, true},
+        new Object[]{Range.of(1, 1), 2L, false},
+        new Object[]{Range.of(1, 99), 0L, false},
+        new Object[]{Range.of(1, 99), 1L, true},
+        new Object[]{Range.of(1, 99), 99L, true},
+        new Object[]{Range.of(1, 99), 100L, false}
+    };
+
+    for (Object[] input : inputs) {
+      Range r = (Range) input[0];
+      long pos = (long) input[1];
+      boolean expected = (boolean) input[2];
+
+      Assert.assertEquals(expected, r.include(pos));
+    }
+  }
+
+  @Test
+  public void testOverlap() {
+    Object[][] inputs = new Object[][]{
+        new Object[]{Range.of(0, 0), Range.of(0, 0), false},
+        new Object[]{Range.of(0, 1), Range.of(0, 1), true},
+        new Object[]{Range.of(0, 1), Range.of(1, 0), false},
+        new Object[]{Range.of(0, 1), Range.of(1, 1), false},
+        new Object[]{Range.of(0, 2), Range.of(1, 1), true},
+        new Object[]{Range.of(0, 2), Range.of(0, 1), true},
+        new Object[]{Range.of(0, 2), Range.of(1, 2), true},
+        new Object[]{Range.of(0, 2), Range.of(2, 0), false},
+        new Object[]{Range.of(0, 2), Range.of(2, 1), false},
+        new Object[]{Range.of(5, 9), Range.of(0, 5), false},
+        new Object[]{Range.of(5, 9), Range.of(0, 6), true}
+    };
+
+    for (Object[] input : inputs) {
+      Range l = (Range) input[0];
+      Range r = (Range) input[1];
+      boolean expect = (boolean) input[2];
+
+      Assert.assertEquals(expect, l.overlap(r));
+    }
+  }
+
+  @Test
+  public void testSplit() {
+    Assert.assertEquals(Range.split(10, 3),
+        ImmutableList.of(Range.of(0, 3), Range.of(3, 3), Range.of(6, 3), Range.of(9, 1)));
+    Assert.assertEquals(Range.split(10, 5),
+        ImmutableList.of(Range.of(0, 5), Range.of(5, 5)));
+    Assert.assertEquals(Range.split(10, 12),
+        ImmutableList.of(Range.of(0, 10)));
+    Assert.assertEquals(Range.split(2, 1),
+        ImmutableList.of(Range.of(0, 1), Range.of(1, 1)));
+  }
+}
+