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test/org/apache/tomcat/websocket/TestWsFrame.java

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+/*
+ *  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.tomcat.websocket;
+
+import java.io.IOException;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestWsFrame {
+
+    @Test
+    public void testByteArrayToLong() throws IOException {
+        Assert.assertEquals(0L, WsFrameBase.byteArrayToLong(new byte[] { 0 }, 0, 1));
+        Assert.assertEquals(1L, WsFrameBase.byteArrayToLong(new byte[] { 1 }, 0, 1));
+        Assert.assertEquals(0xFF, WsFrameBase.byteArrayToLong(new byte[] { -1 }, 0, 1));
+        Assert.assertEquals(0xFFFF,
+                WsFrameBase.byteArrayToLong(new byte[] { -1, -1 }, 0, 2));
+        Assert.assertEquals(0xFFFFFF,
+                WsFrameBase.byteArrayToLong(new byte[] { -1, -1, -1 }, 0, 3));
+    }
+
+
+    @Test
+    public void testByteArrayToLongOffset() throws IOException {
+        Assert.assertEquals(0L, WsFrameBase.byteArrayToLong(new byte[] { 20, 0 }, 1, 1));
+        Assert.assertEquals(1L, WsFrameBase.byteArrayToLong(new byte[] { 20, 1 }, 1, 1));
+        Assert.assertEquals(0xFF, WsFrameBase.byteArrayToLong(new byte[] { 20, -1 }, 1, 1));
+        Assert.assertEquals(0xFFFF,
+                WsFrameBase.byteArrayToLong(new byte[] { 20, -1, -1 }, 1, 2));
+        Assert.assertEquals(0xFFFFFF,
+                WsFrameBase.byteArrayToLong(new byte[] { 20, -1, -1, -1 }, 1, 3));
+    }
+
+}