diff options
Diffstat (limited to 'dexlib2/src/test/java/org/jf/util/NumberUtilsTest.java')
| -rw-r--r-- | dexlib2/src/test/java/org/jf/util/NumberUtilsTest.java | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/dexlib2/src/test/java/org/jf/util/NumberUtilsTest.java b/dexlib2/src/test/java/org/jf/util/NumberUtilsTest.java new file mode 100644 index 00000000..a059c87d --- /dev/null +++ b/dexlib2/src/test/java/org/jf/util/NumberUtilsTest.java @@ -0,0 +1,128 @@ +/* + * Copyright 2013, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +package org.jf.util; + +import junit.framework.Assert; +import org.junit.Test; + +public class NumberUtilsTest { + @Test + public void isLikelyFloatTest() { + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(1.23f))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(1.0f))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(Float.NaN))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(Float.NEGATIVE_INFINITY))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(Float.POSITIVE_INFINITY))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(1e-30f))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(1000f))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(1f))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(-1f))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(-5f))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(1.3333f))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(4.5f))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(.1f))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(50000f))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(Float.MAX_VALUE))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits((float)Math.PI))); + Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits((float)Math.E))); + + Assert.assertTrue(NumberUtils.isLikelyFloat(2139095039)); + + + // Float.MIN_VALUE is equivalent to integer value 1 - this should be detected as an integer + //Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(Float.MIN_VALUE))); + + // This one doesn't quite work. It has a series of 2 0's, but that is probably not enough to strip off normally + //Assert.assertTrue(NumberUtils.isLikelyFloat(Float.floatToRawIntBits(1.33333f))); + + Assert.assertFalse(NumberUtils.isLikelyFloat(0)); + Assert.assertFalse(NumberUtils.isLikelyFloat(1)); + Assert.assertFalse(NumberUtils.isLikelyFloat(10)); + Assert.assertFalse(NumberUtils.isLikelyFloat(100)); + Assert.assertFalse(NumberUtils.isLikelyFloat(1000)); + Assert.assertFalse(NumberUtils.isLikelyFloat(1024)); + Assert.assertFalse(NumberUtils.isLikelyFloat(1234)); + Assert.assertFalse(NumberUtils.isLikelyFloat(-5)); + Assert.assertFalse(NumberUtils.isLikelyFloat(-13)); + Assert.assertFalse(NumberUtils.isLikelyFloat(-123)); + Assert.assertFalse(NumberUtils.isLikelyFloat(20000000)); + Assert.assertFalse(NumberUtils.isLikelyFloat(2000000000)); + Assert.assertFalse(NumberUtils.isLikelyFloat(-2000000000)); + Assert.assertFalse(NumberUtils.isLikelyFloat(Integer.MAX_VALUE)); + Assert.assertFalse(NumberUtils.isLikelyFloat(Integer.MIN_VALUE)); + Assert.assertFalse(NumberUtils.isLikelyFloat(Short.MIN_VALUE)); + Assert.assertFalse(NumberUtils.isLikelyFloat(Short.MAX_VALUE)); + } + + @Test + public void isLikelyDoubleTest() { + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(1.23f))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(1.0f))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(Double.NaN))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(Double.NEGATIVE_INFINITY))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(Double.POSITIVE_INFINITY))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(1e-30f))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(1000f))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(1f))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(-1f))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(-5f))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(1.3333f))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(1.33333f))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(4.5f))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(.1f))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(50000f))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(Double.MAX_VALUE))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(Math.PI))); + Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(Math.E))); + + // Double.MIN_VALUE is equivalent to integer value 1 - this should be detected as an integer + //Assert.assertTrue(NumberUtils.isLikelyDouble(Double.doubleToRawLongBits(Double.MIN_VALUE))); + + Assert.assertFalse(NumberUtils.isLikelyDouble(0)); + Assert.assertFalse(NumberUtils.isLikelyDouble(1)); + Assert.assertFalse(NumberUtils.isLikelyDouble(10)); + Assert.assertFalse(NumberUtils.isLikelyDouble(100)); + Assert.assertFalse(NumberUtils.isLikelyDouble(1000)); + Assert.assertFalse(NumberUtils.isLikelyDouble(1024)); + Assert.assertFalse(NumberUtils.isLikelyDouble(1234)); + Assert.assertFalse(NumberUtils.isLikelyDouble(-5)); + Assert.assertFalse(NumberUtils.isLikelyDouble(-13)); + Assert.assertFalse(NumberUtils.isLikelyDouble(-123)); + Assert.assertFalse(NumberUtils.isLikelyDouble(20000000)); + Assert.assertFalse(NumberUtils.isLikelyDouble(2000000000)); + Assert.assertFalse(NumberUtils.isLikelyDouble(-2000000000)); + Assert.assertFalse(NumberUtils.isLikelyDouble(Integer.MAX_VALUE)); + Assert.assertFalse(NumberUtils.isLikelyDouble(Integer.MIN_VALUE)); + Assert.assertFalse(NumberUtils.isLikelyDouble(Short.MIN_VALUE)); + Assert.assertFalse(NumberUtils.isLikelyDouble(Short.MAX_VALUE)); + } +} |