Example usage for org.apache.commons.math.util MathUtils equals

Introduction

In this page you can find the example usage for org.apache.commons.math.util MathUtils equals.

Prototype

public static boolean equals(double[] x, double[] y) 

Source Link

Document

Returns true iff both arguments are null or have same dimensions and all their elements are equal as defined by #equals(double,double) .

Usage

From source file:edu.umn.msi.tropix.proteomics.conversion.impl.MgfParserTest.java

@Test(groups = "unit")
public void testMrrConvertedByTpp() {
    final InputStream inputStream = ProteomicsTests.getResourceAsStream("readw.mgf-shortened");
    final Iterator<Scan> scanIter = new MgfParser().parserMgf(inputStream);
    final Scan scan1 = scanIter.next();
    assert scan1.getNumber() == 78 : scan1.getNumber();
    assert scan1.getMsLevel() == 2;
    assert scan1.getPrecursorCharge() == 2;

    assert MathUtils.equals(scanIter.next().getPeaks()[0], 221.161362d);
    final int expectedNumScans = 4;
    int numScans = 2;
    while (scanIter.hasNext()) {
        scanIter.next();/*from www  .  j  av a 2 s  . c  o  m*/
        numScans++;
    }
    assert numScans == expectedNumScans : numScans;
}

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From source file:edu.umn.msi.tropix.common.test.FloatingPointDataStreamTest.java

@Test(groups = "unit")
public void readDouble() throws IOException {
    final ByteArrayOutputStream bos = new ByteArrayOutputStream();
    // final DataOutputStream dos = new DataOutputStream(bos);
    final FloatingPointDataOutputStream dos = new FloatingPointDataOutputStream(bos);
    dos.writeDouble(123.45d);//w w w .j  a  v a  2s.  c  o m
    dos.writeFloat(12.3f);
    bos.close();
    final InputStream ds = new ByteArrayInputStream(bos.toByteArray());
    final FloatingPointDataInputStream fis = new FloatingPointDataInputStream(ds);
    final double d1 = fis.readDouble();
    final float f1 = fis.readFloat();
    assert MathUtils.equals(123.45, d1);
    assert MathUtils.equals(f1, 12.3f);
}

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From source file:edu.umn.msi.tropix.proteomics.conversion.impl.MzXMLToDTAConverterStreamingImplTest.java

@Test(groups = "unit")
public void readw() {
    /*/*from www.  j a  va 2  s  . co  m*/
    final Random random = new Random();
    int count = 5000;
    double[] peaks = new double[count];
    for(int i =0; i < count; i++) {
      peaks[i] = random.nextDouble();
    }
            
    System.out.println(new String(Base64.encodeBase64(ConversionUtils.doubles2bytes(peaks))));
    */
    final MzXMLToDTAConverterStreamingImpl converter = new MzXMLToDTAConverterStreamingImpl();
    DTAList dtaList;
    InputStream mzxmlStream;
    mzxmlStream = ProteomicsTests.getResourceAsStream("readw.mzXML");
    try {
        dtaList = converter.mzxmlToDTA(mzxmlStream, null);
        double[] contents78charge2 = null, contents78charge3 = null;
        for (DTAList.Entry entry : dtaList) {
            if (entry.getName().matches(".*0*78\\.0*78\\.2\\.dta$")) {
                assert contents78charge2 == null;
                contents78charge2 = DTAUtils.readDtaDoublePairs(entry.getContents());
            }
            if (entry.getName().matches(".*0*78\\.0*78\\.3\\.dta$")) {
                assert contents78charge3 == null;
                contents78charge3 = DTAUtils.readDtaDoublePairs(entry.getContents());
            }
            if (entry.getName().matches(".*0*1993\\.0*1993\\.1\\.dta$")) {
                final double[] values = DTAUtils.readDtaDoublePairs(entry.getContents());
                final Scanner scanner = new Scanner(new ByteArrayInputStream(entry.getContents()));
                assert MathUtils.equals(scanner.nextDouble(), 1515.390000);
                assert scanner.nextInt() == 1;
                assert Math.abs(662.267334 - values[0]) < .01 : values[0];
                assert Math.abs(4.004042 - values[values.length - 1]) < .01;
            }
        }
        assert contents78charge2 != null;
        assert contents78charge3 != null;
        assert contents78charge2.length == contents78charge3.length;
        for (int i = 2; i < contents78charge2.length; i++) {
            assert MathUtils.equals(contents78charge2[i], contents78charge3[i]);
        }
    } finally {
        IO_UTILS.closeQuietly(mzxmlStream);
    }
}

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