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More tests more resistance to mutation testing.
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This commit is contained in:
Jens True
2024-07-25 11:23:59 +00:00
parent 1b7e26a6b5
commit f6acee18e5
6 changed files with 184 additions and 25 deletions
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51
tests/Numerics/GaussianDistributionTest.php
View File

@@ -92,6 +92,20 @@ class GaussianDistributionTest extends TestCase
$m3s4 = new GaussianDistribution(3, 4);
$lpn2 = GaussianDistribution::logProductNormalization($m1s2, $m3s4);
$this->assertEqualsWithDelta(-2.5168046699816684, $lpn2, GaussianDistributionTest::ERROR_TOLERANCE);
$numerator = GaussianDistribution::fromPrecisionMean(1, 0);
$denominator = GaussianDistribution::fromPrecisionMean(1, 0);
$lrn = GaussianDistribution::logProductNormalization($numerator, $denominator);
$this->assertEquals(0, $lrn);
$numerator = GaussianDistribution::fromPrecisionMean(1, 1);
$denominator = GaussianDistribution::fromPrecisionMean(1, 0);
$lrn = GaussianDistribution::logProductNormalization($numerator, $denominator);
$this->assertEquals(0, $lrn);
$numerator = GaussianDistribution::fromPrecisionMean(1, 0);
$denominator = GaussianDistribution::fromPrecisionMean(1, 1);
$lrn = GaussianDistribution::logProductNormalization($numerator, $denominator);
$this->assertEquals(0, $lrn);
}
public function testLogRatioNormalization(): void
@@ -101,6 +115,20 @@ class GaussianDistributionTest extends TestCase
$m3s4 = new GaussianDistribution(3, 4);
$lrn = GaussianDistribution::logRatioNormalization($m1s2, $m3s4);
$this->assertEqualsWithDelta(2.6157405972171204, $lrn, GaussianDistributionTest::ERROR_TOLERANCE);
$numerator = GaussianDistribution::fromPrecisionMean(1, 0);
$denominator = GaussianDistribution::fromPrecisionMean(1, 0);
$lrn = GaussianDistribution::logRatioNormalization($numerator, $denominator);
$this->assertEquals(0, $lrn);
$numerator = GaussianDistribution::fromPrecisionMean(1, 1);
$denominator = GaussianDistribution::fromPrecisionMean(1, 0);
$lrn = GaussianDistribution::logRatioNormalization($numerator, $denominator);
$this->assertEquals(0, $lrn);
$numerator = GaussianDistribution::fromPrecisionMean(1, 0);
$denominator = GaussianDistribution::fromPrecisionMean(1, 1);
$lrn = GaussianDistribution::logRatioNormalization($numerator, $denominator);
$this->assertEquals(0, $lrn);
}
public function testAbsoluteDifference(): void
@@ -115,4 +143,27 @@ class GaussianDistributionTest extends TestCase
$absDiff2 = GaussianDistribution::absoluteDifference($m1s2, $m3s4);
$this->assertEqualsWithDelta(0.4330127018922193, $absDiff2, GaussianDistributionTest::ERROR_TOLERANCE);
}
public function testSubtract(): void
{
// Verified with Ralf Herbrich's F# implementation
$standardNormal = new GaussianDistribution(0, 1);
$absDiff = GaussianDistribution::subtract($standardNormal, $standardNormal);
$this->assertEqualsWithDelta(0.0, $absDiff, GaussianDistributionTest::ERROR_TOLERANCE);
$m1s2 = new GaussianDistribution(1, 2);
$m3s4 = new GaussianDistribution(3, 4);
$absDiff2 = GaussianDistribution::subtract($m1s2, $m3s4);
$this->assertEqualsWithDelta(0.4330127018922193, $absDiff2, GaussianDistributionTest::ERROR_TOLERANCE);
}
public function testfromPrecisionMean(): void
{
$gd = GaussianDistribution::fromPrecisionMean(0, 0);
$this->assertInfinite($gd->getVariance());
$this->assertInfinite($gd->getStandardDeviation());
$this->assertNan($gd->getMean());
$this->assertEquals(0, $gd->getPrecisionMean());
$this->assertEquals(0, $gd->getPrecision());
}
}

77
tests/Numerics/MatrixTest.php
View File

@@ -22,6 +22,83 @@ use Exception;
// phpcs:disable PSR2.Methods.FunctionCallSignature,Generic.Functions.FunctionCallArgumentSpacing.TooMuchSpaceAfterComma
class MatrixTest extends TestCase
{
public function testEmptyMatrix(): void
{
$m1 = new Matrix();
$this->assertEquals(0, $m1->getRowCount());
$this->assertEquals(0, $m1->getColumnCount());
$m2 = new Matrix(0, 0);
$this->assertEquals(0, $m2->getRowCount());
$this->assertEquals(0, $m2->getColumnCount());
$this->assertEquals(new Matrix(), Matrix::multiply($m1, $m2));
}
public function testIndexing(): void
{
$m = new Matrix(5, 5);
$m->setValue(0, 0, 1);
$this->assertEquals(1, $m->getValue(0, 0));
$m->setValue(0, 1, 2);
$this->assertEquals(2, $m->getValue(0, 1));
$m->setValue(1, 0, 3);
$this->assertEquals(3, $m->getValue(1, 0));
$m->setValue(1, 1, 4);
$this->assertEquals(4, $m->getValue(1, 1));
$m->setValue(3, 3, 11);
$this->assertEquals(11, $m->getValue(3, 3));
$m->setValue(4, 3, 22);
$this->assertEquals(22, $m->getValue(4, 3));
$m->setValue(3, 4, 33);
$this->assertEquals(33, $m->getValue(3, 4));
$m->setValue(4, 4, 44);
$this->assertEquals(44, $m->getValue(4, 4));
try {
$m->getValue(-1, -1);
$this->fail("No exception");
} catch (Exception $exception) {
$this->assertInstanceOf(Exception::class, $exception);
}
try {
$m->getValue(-1, 0);
$this->fail("No exception");
} catch (Exception $exception) {
$this->assertInstanceOf(Exception::class, $exception);
}
try {
$m->getValue(0, -1);
$this->fail("No exception");
} catch (Exception $exception) {
$this->assertInstanceOf(Exception::class, $exception);
}
try {
$m->getValue(5, 5);
$this->fail("No exception");
} catch (Exception $exception) {
$this->assertInstanceOf(Exception::class, $exception);
}
try {
$m->getValue(5, 4);
$this->fail("No exception");
} catch (Exception $exception) {
$this->assertInstanceOf(Exception::class, $exception);
}
try {
$m->getValue(4, 5);
$this->fail("No exception");
} catch (Exception $exception) {
$this->assertInstanceOf(Exception::class, $exception);
}
}
public function testOneByOneDeterminant(): void
{
$a = new SquareMatrix(1);