|
| 1 | +/* |
| 2 | + * #%L |
| 3 | + * SciJava Common shared library for SciJava software. |
| 4 | + * %% |
| 5 | + * Copyright (C) 2009 - 2015 Board of Regents of the University of |
| 6 | + * Wisconsin-Madison, Broad Institute of MIT and Harvard, and Max Planck |
| 7 | + * Institute of Molecular Cell Biology and Genetics. |
| 8 | + * %% |
| 9 | + * Redistribution and use in source and binary forms, with or without |
| 10 | + * modification, are permitted provided that the following conditions are met: |
| 11 | + * |
| 12 | + * 1. Redistributions of source code must retain the above copyright notice, |
| 13 | + * this list of conditions and the following disclaimer. |
| 14 | + * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 15 | + * this list of conditions and the following disclaimer in the documentation |
| 16 | + * and/or other materials provided with the distribution. |
| 17 | + * |
| 18 | + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 19 | + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 20 | + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 21 | + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE |
| 22 | + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 23 | + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 24 | + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 25 | + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 26 | + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 27 | + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 28 | + * POSSIBILITY OF SUCH DAMAGE. |
| 29 | + * #L% |
| 30 | + */ |
| 31 | + |
| 32 | +package org.scijava.convert; |
| 33 | + |
| 34 | +import static org.junit.Assert.assertEquals; |
| 35 | +import static org.junit.Assert.assertTrue; |
| 36 | + |
| 37 | +import java.math.BigDecimal; |
| 38 | +import java.math.BigInteger; |
| 39 | + |
| 40 | +import org.junit.Rule; |
| 41 | +import org.junit.Test; |
| 42 | +import org.junit.rules.ExpectedException; |
| 43 | + |
| 44 | +/** |
| 45 | + * Tests converter plugins that convert from primitive numeric types to other |
| 46 | + * primitive numeric types. |
| 47 | + * |
| 48 | + * @author Alison Walter |
| 49 | + */ |
| 50 | +public abstract class AbstractNumberConverterTests { |
| 51 | + |
| 52 | + protected NumberToNumberConverter<?, ?> converter = getConverter(); |
| 53 | + protected Class<?> srcType = converter.getInputType(); |
| 54 | + protected Class<?> destType = converter.getOutputType(); |
| 55 | + |
| 56 | + public abstract Number getSrc(); |
| 57 | + |
| 58 | + public abstract NumberToNumberConverter<?, ?> getConverter(); |
| 59 | + |
| 60 | + public abstract Number getExpectedValue(); |
| 61 | + |
| 62 | + public abstract Number getInvalidInput(); |
| 63 | + |
| 64 | + public abstract Class<?> getInvalidOutput(); |
| 65 | + |
| 66 | + /** |
| 67 | + * Test case for the wrapper classes |
| 68 | + */ |
| 69 | + @Test |
| 70 | + public void testWrapper() { |
| 71 | + final Number src = getSrc(); |
| 72 | + final Number expect = getExpectedValue(); |
| 73 | + assertTrue(destType.isInstance(converter.convert(src, destType))); |
| 74 | + assertEquals(expect, converter.convert(src, destType)); |
| 75 | + } |
| 76 | + |
| 77 | + /** |
| 78 | + * Test case for primitive values |
| 79 | + */ |
| 80 | + @Test |
| 81 | + public void testPrimitive() { |
| 82 | + final Number src = getSrc(); |
| 83 | + final Number expect = getExpectedValue(); |
| 84 | + if (!destType.equals(BigInteger.class) && |
| 85 | + !destType.equals(BigDecimal.class)) |
| 86 | + { |
| 87 | + // byte to number converters |
| 88 | + if (srcType.equals(Byte.class)) { |
| 89 | + final byte b = src.byteValue(); |
| 90 | + if (destType.equals(Short.class)) { |
| 91 | + final short s = expect.shortValue(); |
| 92 | + assertTrue(s == converter.convert(b, short.class)); |
| 93 | + } |
| 94 | + else if (destType.equals(Integer.class)) { |
| 95 | + final int i = expect.intValue(); |
| 96 | + assertTrue(i == converter.convert(b, int.class)); |
| 97 | + } |
| 98 | + else if (destType.equals(Long.class)) { |
| 99 | + final long l = expect.longValue(); |
| 100 | + assertTrue(l == converter.convert(b, long.class)); |
| 101 | + } |
| 102 | + else if (destType.equals(Float.class)) { |
| 103 | + final float f = expect.floatValue(); |
| 104 | + assertTrue(f == converter.convert(b, float.class)); |
| 105 | + } |
| 106 | + else { |
| 107 | + final double d = expect.doubleValue(); |
| 108 | + assertTrue(d == converter.convert(b, double.class)); |
| 109 | + } |
| 110 | + } |
| 111 | + // int to number converters |
| 112 | + else if (srcType.equals(Integer.class)) { |
| 113 | + final int i = src.intValue(); |
| 114 | + if (destType.equals(Long.class)) { |
| 115 | + final long l = expect.longValue(); |
| 116 | + assertTrue(l == converter.convert(i, long.class)); |
| 117 | + } |
| 118 | + else { |
| 119 | + final double d = expect.doubleValue(); |
| 120 | + assertTrue(d == converter.convert(i, double.class)); |
| 121 | + } |
| 122 | + } |
| 123 | + // short to number converters |
| 124 | + else if (srcType.equals(Short.class)) { |
| 125 | + final short s = src.shortValue(); |
| 126 | + if (destType.equals(Integer.class)) { |
| 127 | + final int i = expect.intValue(); |
| 128 | + assertTrue(i == converter.convert(s, int.class)); |
| 129 | + } |
| 130 | + else if (destType.equals(Long.class)) { |
| 131 | + final long l = expect.longValue(); |
| 132 | + assertTrue(l == converter.convert(s, long.class)); |
| 133 | + } |
| 134 | + else if (destType.equals(Float.class)) { |
| 135 | + final float f = expect.floatValue(); |
| 136 | + assertTrue(f == converter.convert(s, float.class)); |
| 137 | + } |
| 138 | + else { |
| 139 | + final double d = expect.doubleValue(); |
| 140 | + assertTrue(d == converter.convert(s, double.class)); |
| 141 | + } |
| 142 | + } |
| 143 | + // float to number converters |
| 144 | + else if (srcType.equals(Float.class)) { |
| 145 | + final float f = expect.floatValue(); |
| 146 | + final double d = expect.doubleValue(); |
| 147 | + assertTrue(d == converter.convert(f, double.class)); |
| 148 | + } |
| 149 | + else { |
| 150 | + // longs and doubles can't be converted to anything beside bigInteger |
| 151 | + // and big decimal |
| 152 | + } |
| 153 | + } |
| 154 | + else { |
| 155 | + // no prim equivalents for BigInteger and BigDecimal |
| 156 | + } |
| 157 | + } |
| 158 | + |
| 159 | + /** |
| 160 | + * Test case for null input |
| 161 | + */ |
| 162 | + @Test |
| 163 | + public void nullInput() { |
| 164 | + iae("Null input", null, null); |
| 165 | + } |
| 166 | + |
| 167 | + /** |
| 168 | + * Test case for invalid input class |
| 169 | + */ |
| 170 | + @Test |
| 171 | + public void incorrectInputType() { |
| 172 | + final Number input = getInvalidInput(); |
| 173 | + final String message = |
| 174 | + "Expected input of type " + srcType.getSimpleName() + ", but got " + |
| 175 | + input.getClass().getSimpleName(); |
| 176 | + iae(message, input, destType); |
| 177 | + } |
| 178 | + |
| 179 | + /** |
| 180 | + * Test case for invalid output class |
| 181 | + */ |
| 182 | + @Test |
| 183 | + public void incorrectOutputType() { |
| 184 | + final Class<?> output = getInvalidOutput(); |
| 185 | + final Number src = getSrc(); |
| 186 | + final String message = |
| 187 | + "Expected output class of " + destType.getSimpleName() + ", but got " + |
| 188 | + output.getSimpleName(); |
| 189 | + iae(message, src, output); |
| 190 | + } |
| 191 | + |
| 192 | + @Rule |
| 193 | + public ExpectedException exception = ExpectedException.none(); |
| 194 | + |
| 195 | + // helper methods |
| 196 | + protected void |
| 197 | + iae(final String message, final Number src, final Class<?> dest) |
| 198 | + { |
| 199 | + exception(IllegalArgumentException.class, message, src, dest); |
| 200 | + } |
| 201 | + |
| 202 | + protected void exception(final Class<? extends Throwable> excType, |
| 203 | + final String message, final Number src, final Class<?> dest) |
| 204 | + { |
| 205 | + exception.expect(excType); |
| 206 | + exception.expectMessage(message); |
| 207 | + converter.convert(src, dest); |
| 208 | + } |
| 209 | +} |
0 commit comments