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Java > Open Source Codes > org > apache > fop > util > UnitConvTestCase


1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17
18 /* $Id$ */
19
20 package org.apache.fop.util;
21
22 import junit.framework.TestCase;
23
24 /**
25  * Test class for UnitConv.
26  */
27 public class UnitConvTestCase extends TestCase {
28
29     /**
30      * Test all kinds of unit conversions.
31      * @throws Exception if the test fails
32      */
33     public void testConversions() throws Exception JavaDoc {
34         assertEquals("in2mm", 25.4, UnitConv.in2mm(1), 0.00001);
35         assertEquals("mm2in", 1.0, UnitConv.mm2in(25.4), 0.00001);
36         assertEquals("mm2pt", 841.890, UnitConv.mm2pt(297), 0.001 / 2); //height of an A4 page
37 assertEquals("mm2mpt", 841890, UnitConv.mm2mpt(297), 1.0 / 2);
38         assertEquals("pt2mm", 297, UnitConv.pt2mm(841.890), 0.0001);
39         assertEquals("in2mpt", 792000, UnitConv.in2mpt(11.0), 1.0 / 2); //height of a letter page
40 assertEquals("mpt2in", 11.0, UnitConv.mpt2in(792000), 0.01 / 2); //height of a letter page
41
42         assertEquals("mm2px/72dpi", 841.8897764234434, UnitConv.mm2px(297.0, 72), 0);
43         assertEquals("mm2px/300dpi", 3507.8740684310146, UnitConv.mm2px(297.0, 300), 0);
44     }
45     
46 }
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