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MATH-675 

Improved test implementation and increased coverage for "isMonotonic"
function.


git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1183119 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Gilles Sadowski 2011-10-13 21:45:39 +00:00
parent 0b3440441b
commit 54364e6b57
1 changed files with 70 additions and 56 deletions
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98
src/test/java/org/apache/commons/math/util/MathArraysTest.java
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@ -122,65 +122,79 @@ public class MathArraysTest {
}
@Test
public void testIsMonotone() {
if(MathArrays.isMonotonic(new double[] { -15, -5.5, -1, -1, 2, 15 },
MathArrays.OrderDirection.INCREASING, true)) {
Assert.fail("an exception should have been thrown");
}
if(MathArrays.isMonotonic(new double[] { -15, -5.5, -1, -2, 2 },
MathArrays.OrderDirection.INCREASING, false)) {
Assert.fail("an exception should have been thrown");
}
if(MathArrays.isMonotonic(new double[] { 3, 3, -5.5, -11, -27.5 },
MathArrays.OrderDirection.DECREASING, true)) {
Assert.fail("an exception should have been thrown");
}
if( MathArrays.isMonotonic(new double[] { 3, -1, 0, -5.5, -11, -27.5 },
MathArrays.OrderDirection.DECREASING, false)) {
Assert.fail("an exception should have been thrown");
}
public void testIsMonotonic() {
Assert.assertFalse(MathArrays.isMonotonic(new double[] { -15, -5.5, -1, -1, 2, 15 },
MathArrays.OrderDirection.INCREASING, true));
Assert.assertTrue(MathArrays.isMonotonic(new double[] { -15, -5.5, -1, 0, 2, 15 },
MathArrays.OrderDirection.INCREASING, true));
Assert.assertFalse(MathArrays.isMonotonic(new double[] { -15, -5.5, -1, -2, 2 },
MathArrays.OrderDirection.INCREASING, false));
Assert.assertTrue(MathArrays.isMonotonic(new double[] { -15, -5.5, -1, -1, 2 },
MathArrays.OrderDirection.INCREASING, false));
Assert.assertFalse(MathArrays.isMonotonic(new double[] { 3, 3, -5.5, -11, -27.5 },
MathArrays.OrderDirection.DECREASING, true));
Assert.assertTrue(MathArrays.isMonotonic(new double[] { 3, 2, -5.5, -11, -27.5 },
MathArrays.OrderDirection.DECREASING, true));
Assert.assertFalse(MathArrays.isMonotonic(new double[] { 3, -1, 0, -5.5, -11, -27.5 },
MathArrays.OrderDirection.DECREASING, false));
Assert.assertTrue(MathArrays.isMonotonic(new double[] { 3, 0, 0, -5.5, -11, -27.5 },
MathArrays.OrderDirection.DECREASING, false));
}
@Test
public void testIsMonotoneComparable() {
if (MathArrays.isMonotonic(new Double[] { new Double(-15),
public void testIsMonotonicComparable() {
Assert.assertFalse(MathArrays.isMonotonic(new Double[] { new Double(-15),
new Double(-5.5),
new Double(-1),
new Double(-1),
new Double(2),
new Double(15)},
MathArrays.OrderDirection.INCREASING, true)) {
Assert.fail("an exception should have been thrown");
}
if (MathArrays.isMonotonic(new Double[] { new Double(-15),
new Double(15) },
MathArrays.OrderDirection.INCREASING, true));
Assert.assertTrue(MathArrays.isMonotonic(new Double[] { new Double(-15),
new Double(-5.5),
new Double(-1),
new Double(0),
new Double(2),
new Double(15) },
MathArrays.OrderDirection.INCREASING, true));
Assert.assertFalse(MathArrays.isMonotonic(new Double[] { new Double(-15),
new Double(-5.5),
new Double(-1),
new Double(-2),
new Double(2)},
MathArrays.OrderDirection.INCREASING, false)) {
Assert.fail("an exception should have been thrown");
}
if (MathArrays.isMonotonic(new Double[] { new Double(3),
new Double(2) },
MathArrays.OrderDirection.INCREASING, false));
Assert.assertTrue(MathArrays.isMonotonic(new Double[] { new Double(-15),
new Double(-5.5),
new Double(-1),
new Double(-1),
new Double(2) },
MathArrays.OrderDirection.INCREASING, false));
Assert.assertFalse(MathArrays.isMonotonic(new Double[] { new Double(3),
new Double(3),
new Double(-5.5),
new Double(-11),
new Double(-27.5)},
MathArrays.OrderDirection.DECREASING, true)) {
Assert.fail("an exception should have been thrown");
}
if (MathArrays.isMonotonic(new Double[] {new Double(3),
new Double(-27.5) },
MathArrays.OrderDirection.DECREASING, true));
Assert.assertTrue(MathArrays.isMonotonic(new Double[] { new Double(3),
new Double(2),
new Double(-5.5),
new Double(-11),
new Double(-27.5) },
MathArrays.OrderDirection.DECREASING, true));
Assert.assertFalse(MathArrays.isMonotonic(new Double[] { new Double(3),
new Double(-1),
new Double(0),
new Double(-5.5),
new Double(-11),
new Double(-27.5)},
MathArrays.OrderDirection.DECREASING, false)) {
Assert.fail("an exception should have been thrown");
}
new Double(-27.5) },
MathArrays.OrderDirection.DECREASING, false));
Assert.assertTrue(MathArrays.isMonotonic(new Double[] { new Double(3),
new Double(0),
new Double(0),
new Double(-5.5),
new Double(-11),
new Double(-27.5) },
MathArrays.OrderDirection.DECREASING, false));
}
@Test