1 /* Copyright (C) 2010 The Android Open Source Project 2 * 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 package com.android.exchange.utility; 17 18 import com.android.emailcommon.utility.Utility; 19 20 import android.test.suitebuilder.annotation.SmallTest; 21 22 import junit.framework.TestCase; 23 24 /** 25 * Test for {@link SimpleIcsWriter}. 26 * You can run this entire test case with: 27 * runtest -c com.android.exchange.utility.SimpleIcsWriterTests exchange 28 */ 29 @SmallTest 30 public class SimpleIcsWriterTests extends TestCase { 31 private static final String CRLF = "\r\n"; 32 private static final String UTF8_1_BYTE = "a"; 33 private static final String UTF8_2_BYTES = "\u00A2"; 34 private static final String UTF8_3_BYTES = "\u20AC"; 35 private static final String UTF8_4_BYTES = "\uD852\uDF62"; 36 37 /** 38 * Test for {@link SimpleIcsWriter#writeTag}. It also covers {@link SimpleIcsWriter#getBytes()} 39 * and {@link SimpleIcsWriter#escapeTextValue}. 40 */ testWriteTag()41 public void testWriteTag() { 42 final SimpleIcsWriter ics = new SimpleIcsWriter(); 43 ics.writeTag("TAG1", null); 44 ics.writeTag("TAG2", ""); 45 ics.writeTag("TAG3", "xyz"); 46 ics.writeTag("SUMMARY", "TEST-TEST,;\r\n\\TEST"); 47 ics.writeTag("SUMMARY2", "TEST-TEST,;\r\n\\TEST"); 48 final String actual = Utility.fromUtf8(ics.getBytes()); 49 50 assertEquals( 51 "TAG3:xyz" + CRLF + 52 "SUMMARY:TEST-TEST\\,\\;\\n\\\\TEST" + CRLF + // escaped 53 "SUMMARY2:TEST-TEST,;\r\n\\TEST" + CRLF // not escaped 54 , actual); 55 } 56 57 /** 58 * Verify that: We're folding lines correctly, and we're not splitting up a UTF-8 character. 59 */ testWriteLine()60 public void testWriteLine() { 61 for (String last : new String[] {UTF8_1_BYTE, UTF8_2_BYTES, UTF8_3_BYTES, UTF8_4_BYTES}) { 62 for (int i = 70; i < 160; i++) { 63 String input = stringOfLength(i) + last; 64 checkWriteLine(input); 65 } 66 } 67 } 68 69 /** 70 * @return a String of {@code length} bytes in UTF-8. 71 */ stringOfLength(int length)72 private static String stringOfLength(int length) { 73 StringBuilder sb = new StringBuilder(); 74 for (int i = 0; i < length; i++) { 75 sb.append('0' +(i % 10)); 76 } 77 return sb.toString(); 78 } 79 checkWriteLine(String input)80 private void checkWriteLine(String input) { 81 final SimpleIcsWriter ics = new SimpleIcsWriter(); 82 ics.writeLine(input); 83 final byte[] bytes = ics.getBytes(); 84 85 // Verify that no lines are longer than 75 bytes. 86 int numBytes = 0; 87 for (byte b : bytes) { 88 if (b == '\r') { 89 continue; // ignore 90 } 91 if (b == '\n') { 92 assertTrue("input=" + input, numBytes <= 75); 93 numBytes = 0; 94 continue; 95 } 96 numBytes++; 97 } 98 assertTrue("input=" + input, numBytes <= 75); 99 100 // If we're splitting up a UTF-8 character, fromUtf8() won't restore it correctly. 101 // If it becomes the same as input, we're doing the right thing. 102 final String actual = Utility.fromUtf8(bytes); 103 final String unfolded = actual.replace("\r\n\t", ""); 104 assertEquals("input=" + input, input + "\r\n", unfolded); 105 } 106 testQuoteParamValue()107 public void testQuoteParamValue() { 108 assertNull(SimpleIcsWriter.quoteParamValue(null)); 109 assertEquals("\"\"", SimpleIcsWriter.quoteParamValue("")); 110 assertEquals("\"a\"", SimpleIcsWriter.quoteParamValue("a")); 111 assertEquals("\"''\"", SimpleIcsWriter.quoteParamValue("\"'")); 112 assertEquals("\"abc\"", SimpleIcsWriter.quoteParamValue("abc")); 113 assertEquals("\"a'b'c\"", SimpleIcsWriter.quoteParamValue("a\"b\"c")); 114 } 115 } 116