/*
* Copyright 1998-2009 University Corporation for Atmospheric Research/Unidata
*
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
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package ucar.nc2.dods;
import java.io.IOException;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import ucar.ma2.Array;
import ucar.ma2.ArrayByte;
import ucar.ma2.ArrayDouble;
import ucar.ma2.ArrayFloat;
import ucar.ma2.ArrayInt;
import ucar.ma2.ArrayObject;
import ucar.ma2.ArrayShort;
import ucar.ma2.DataType;
import ucar.ma2.InvalidRangeException;
import ucar.nc2.Variable;
import ucar.unidata.util.test.category.NeedsExternalResource;
/** Test nc2 dods in the JUnit framework. */
@Category(NeedsExternalResource.class)
public class TestDODSScalars {
@Test
public void testScalar() throws IOException {
DODSNetcdfFile dodsfile = TestDODSRead.open("test.01");
Variable v = null;
Array a = null;
// byte
assert(null != (v = dodsfile.findVariable("b")));
assert v.getShortName().equals("b");
assert v.getRank() == 0;
assert v.getSize() == 1;
assert v.getDataType() == DataType.BYTE;
a = v.read();
assert a.getRank() == 0;
assert a.getSize() == 1;
assert a.getElementType() == byte.class;
assert a instanceof ArrayByte.D0;
byte valb = ((ArrayByte.D0)a).get();
assert (valb == 0);
// int16
assert(null != (v = dodsfile.findVariable("i16")));
assert v.getShortName().equals("i16");
assert v.getRank() == 0;
assert v.getSize() == 1;
assert v.getDataType() == DataType.SHORT;
a = v.read();
assert a.getRank() == 0;
assert a.getSize() == 1;
assert a.getElementType() == short.class;
assert a instanceof ArrayShort.D0;
short vals = ((ArrayShort.D0)a).get();
assert (vals == 0);
// int32
assert(null != (v = dodsfile.findVariable("i32")));
assert v.getShortName().equals("i32");
assert v.getRank() == 0;
assert v.getSize() == 1;
assert v.getDataType() == DataType.INT;
a = v.read();
assert a.getRank() == 0;
assert a.getSize() == 1;
assert a.getElementType() == int.class;
assert a instanceof ArrayInt.D0;
int vali = ((ArrayInt.D0)a).get();
assert (vali == 1) : vali;
// uint32
assert(null != (v = dodsfile.findVariable("ui32")));
assert v.getShortName().equals("ui32");
assert v.getRank() == 0;
assert v.getSize() == 1;
assert v.getDataType() == DataType.INT : v.getDataType();
assert v.isUnsigned();
a = v.read();
assert a.getRank() == 0;
assert a.getSize() == 1;
assert a.getElementType() == int.class;
assert a instanceof ArrayInt.D0;
int vall = ((ArrayInt.D0)a).get();
assert (vall == 0);
// uint16
assert(null != (v = dodsfile.findVariable("ui16")));
assert v.getShortName().equals("ui16");
assert v.getRank() == 0;
assert v.getSize() == 1;
assert v.getDataType() == DataType.SHORT : v.getDataType();
assert v.isUnsigned();
a = v.read();
assert a.getRank() == 0;
assert a.getSize() == 1;
assert a.getElementType() == short.class;
assert a instanceof ArrayShort.D0;
vali = ((ArrayShort.D0)a).get();
assert (vali == 0);
// float
assert(null != (v = dodsfile.findVariable("f32")));
assert v.getShortName().equals("f32");
assert v.getRank() == 0;
assert v.getSize() == 1;
assert v.getDataType() == DataType.FLOAT : v.getDataType();
a = v.read();
assert a.getRank() == 0;
assert a.getSize() == 1;
assert a.getElementType() == float.class;
assert a instanceof ArrayFloat.D0;
float valf = ((ArrayFloat.D0)a).get();
assert (valf == 0.0);
// double
assert(null != (v = dodsfile.findVariable("f64")));
assert v.getShortName().equals("f64");
assert v.getRank() == 0;
assert v.getSize() == 1;
assert v.getDataType() == DataType.DOUBLE : v.getDataType();
a = v.read();
assert a.getRank() == 0;
assert a.getSize() == 1;
assert a.getElementType() == double.class;
assert a instanceof ArrayDouble.D0;
double vald = ((ArrayDouble.D0)a).get();
assert (vald == 1000.0);
try {
String s = v.readScalarString();
assert false;
} catch (Exception e) {
assert e instanceof IllegalArgumentException : e.getClass().getName();
}
// string
assert(null != (v = dodsfile.findVariable("s")));
assert v.getShortName().equals("s");
assert v.getRank() == 0;
assert v.getDataType() == DataType.STRING : v.getDataType();
a = v.read();
assert a.getRank() == 0;
assert a.getElementType() == String.class;
assert a instanceof ArrayObject.D0;
String str = (String) a.getObject(a.getIndex());
assert str.equals("This is a data test string (pass 0).");
// url
assert(null != (v = dodsfile.findVariable("u")));
assert v.getShortName().equals("u");
assert v.getRank() == 0;
assert v.getDataType() == DataType.STRING : v.getDataType();
a = v.read();
assert a.getRank() == 0;
assert a.getElementType() == String.class;
assert a instanceof ArrayObject.D0;
ArrayObject.D0 a0 = (ArrayObject.D0) a;
Object s = a0.get();
assert s instanceof String;
assert s.equals("http://www.opendap.org") || s.equals("http://www.dods.org") : s;
String str2 = v.readScalarString();
assert str2.equals("http://www.opendap.org") || s.equals("http://www.dods.org") : str2;
try {
double val = v.readScalarDouble();
assert false;
} catch (Exception e) {
assert e instanceof ucar.ma2.ForbiddenConversionException : e.getClass().getName();
}
}
@Test
public void testStrings() throws IOException, InvalidRangeException {
DODSNetcdfFile dodsfile = TestDODSRead.open("test.02");
Variable v = null;
// string
assert(null != (v = dodsfile.findVariable("s")));
assert v.getShortName().equals("s");
assert v.getRank() == 1;
assert v.getSize() == 25;
assert v.getDataType() == DataType.STRING : v.getDataType();
Array a = v.read("1:10");
assert a.getRank() == 1;
assert a.getSize() == 10 : a.getSize();
assert a.getElementType() == String.class;
}
}