1 | /*
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2 | * Copyright 2001,2004 The Apache Software Foundation
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3 | *
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4 | * Licensed under the Apache License, Version 2.0 (the "License");
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5 | * you may not use this file except in compliance with the License.
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6 | * You may obtain a copy of the License at
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7 | *
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8 | * http://www.apache.org/licenses/LICENSE-2.0
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9 | *
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10 | * Unless required by applicable law or agreed to in writing, software
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11 | * distributed under the License is distributed on an "AS IS" BASIS,
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 | * See the License for the specific language governing permissions and
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14 | * limitations under the License.
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15 | *
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16 | */
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17 |
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18 | package org.apache.tools.zip;
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19 |
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20 | import junit.framework.TestCase;
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21 |
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22 | /**
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23 | * JUnit 3 testcases for org.apache.tools.zip.ZipLong.
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24 | *
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25 | */
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26 | public class ZipLongTest extends TestCase {
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27 |
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28 | public ZipLongTest(String name) {
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29 | super(name);
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30 | }
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31 |
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32 | /**
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33 | * Test conversion to bytes.
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34 | */
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35 | public void testToBytes() {
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36 | ZipLong zl = new ZipLong(0x12345678);
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37 | byte[] result = zl.getBytes();
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38 | assertEquals("length getBytes", 4, result.length);
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39 | assertEquals("first byte getBytes", 0x78, result[0]);
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40 | assertEquals("second byte getBytes", 0x56, result[1]);
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41 | assertEquals("third byte getBytes", 0x34, result[2]);
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42 | assertEquals("fourth byte getBytes", 0x12, result[3]);
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43 | }
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44 |
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45 | /**
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46 | * Test conversion from bytes.
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47 | */
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48 | public void testFromBytes() {
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49 | byte[] val = new byte[] {0x78, 0x56, 0x34, 0x12};
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50 | ZipLong zl = new ZipLong(val);
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51 | assertEquals("value from bytes", 0x12345678, zl.getValue());
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52 | }
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53 |
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54 | /**
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55 | * Test the contract of the equals method.
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56 | */
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57 | public void testEquals() {
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58 | ZipLong zl = new ZipLong(0x12345678);
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59 | ZipLong zl2 = new ZipLong(0x12345678);
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60 | ZipLong zl3 = new ZipLong(0x87654321);
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61 |
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62 | assertTrue("reflexive", zl.equals(zl));
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63 |
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64 | assertTrue("works", zl.equals(zl2));
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65 | assertTrue("works, part two", !zl.equals(zl3));
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66 |
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67 | assertTrue("symmetric", zl2.equals(zl));
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68 |
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69 | assertTrue("null handling", !zl.equals(null));
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70 | assertTrue("non ZipLong handling", !zl.equals(new Integer(0x1234)));
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71 | }
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72 |
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73 | /**
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74 | * Test sign handling.
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75 | */
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76 | public void testSign() {
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77 | ZipLong zl = new ZipLong(new byte[] {(byte)0xFF, (byte)0xFF, (byte)0xFF, (byte)0xFF});
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78 | assertEquals(0x00000000FFFFFFFFl, zl.getValue());
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79 | }
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80 |
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81 | }
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