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test/org/apache/tomcat/util/http/TestHeaderUtiltoPrintableString.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.util.http;
+
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameter;
+
+@RunWith(Parameterized.class)
+public class TestHeaderUtiltoPrintableString {
+
+    @Parameterized.Parameters(name = "{index}: expected[{1}]")
+    public static Collection<Object[]> parameters() {
+        List<Object[]> parameterSets = new ArrayList<>();
+
+        parameterSets.add(new String[] { "", "" });
+
+        parameterSets.add(new String[] { "abcd", "abcd" });
+
+        parameterSets.add(new String[] { "\u0000abcd", "0x00abcd" });
+        parameterSets.add(new String[] { "ab\u0000cd", "ab0x00cd" });
+        parameterSets.add(new String[] { "abcd\u0000", "abcd0x00" });
+
+        parameterSets.add(new String[] { "\tabcd", "0x09abcd" });
+        parameterSets.add(new String[] { "ab\tcd", "ab0x09cd" });
+        parameterSets.add(new String[] { "abcd\t", "abcd0x09" });
+
+        parameterSets.add(new String[] { " abcd", " abcd" });
+        parameterSets.add(new String[] { "ab cd", "ab cd" });
+        parameterSets.add(new String[] { "abcd ", "abcd " });
+
+        parameterSets.add(new String[] { "~abcd", "~abcd" });
+        parameterSets.add(new String[] { "ab~cd", "ab~cd" });
+        parameterSets.add(new String[] { "abcd~", "abcd~" });
+
+        parameterSets.add(new String[] { "\u007fabcd", "0x7fabcd" });
+        parameterSets.add(new String[] { "ab\u007fcd", "ab0x7fcd" });
+        parameterSets.add(new String[] { "abcd\u007f", "abcd0x7f" });
+
+        parameterSets.add(new String[] { "\u00a3abcd", "0xa3abcd" });
+        parameterSets.add(new String[] { "ab\u00a3cd", "ab0xa3cd" });
+        parameterSets.add(new String[] { "abcd\u00a3", "abcd0xa3" });
+
+        return parameterSets;
+    }
+
+
+    @Parameter(0)
+    public String input;
+    @Parameter(1)
+    public String expected;
+
+
+    @Test
+    public void doTest() {
+        byte[] bytes = input.getBytes(StandardCharsets.ISO_8859_1);
+
+        String result = HeaderUtil.toPrintableString(bytes, 0, bytes.length);
+
+        Assert.assertEquals(expected, result);
+    }
+}