@Test
public void testSizes() {
MXArray a = createDoubleMatrix(123, 456);
assertEquals(8L, MXLibrary.INSTANCE.mxGetElementSize(a).longValue());
assertEquals(123L, MXLibrary.INSTANCE.mxGetM(a).longValue());
assertEquals(456L, MXLibrary.INSTANCE.mxGetN(a).longValue());
assertEquals(2L, MXLibrary.INSTANCE.mxGetNumberOfDimensions(a).longValue());
assertEquals(123L * 456L, MXLibrary.INSTANCE.mxGetNumberOfElements(a).longValue());
Pointer dims = MXLibrary.INSTANCE.mxGetDimensions(a);
assertEquals(123L, dims.getNativeLong(0).longValue());
assertEquals(456L, dims.getNativeLong(NativeLong.SIZE).longValue());
NativeLong[] subs = null;
NativeLong singleSub = null;
// check single subscript of first element
subs = toNativeLongs(0, 0);
singleSub = MXLibrary.INSTANCE.mxCalcSingleSubscript(a, new NativeLong(subs.length), subs);
assertEquals(0L, singleSub.longValue());
// check single subscript of second element (MATLAB always uses
// column-major order)
subs = toNativeLongs(1, 0);
singleSub = MXLibrary.INSTANCE.mxCalcSingleSubscript(a, new NativeLong(subs.length), subs);
assertEquals(1L, singleSub.longValue());
// check single subscript of first element in second row
subs = toNativeLongs(0, 1);
singleSub = MXLibrary.INSTANCE.mxCalcSingleSubscript(a, new NativeLong(subs.length), subs);
assertEquals(123L, singleSub.longValue());
// check single subscript of last element
subs = toNativeLongs(122, 455);
singleSub = MXLibrary.INSTANCE.mxCalcSingleSubscript(a, new NativeLong(subs.length), subs);
assertEquals(123L * 456L - 1, singleSub.longValue());
destroy(a);
}
@Test
public void testUserBits() {
MXArray a = createDoubleMatrix(0, 0);
int bits = 0x1f;
MXLibrary.INSTANCE.mxSetUserBits(a, bits);
assertEquals(MXLibrary.INSTANCE.mxGetUserBits(a), bits);
destroy(a);
}
@Test
public void testArrayToString() {
String expectedValue = "hello1234";
MXArray strArray = MXLibrary.INSTANCE.mxCreateString(expectedValue);
assertTrue(MXLibrary.INSTANCE.mxIsChar(strArray));
Pointer strPointer = MXLibrary.INSTANCE.mxArrayToString(strArray);
String actualValue = strPointer.getString(0);
MXLibrary.INSTANCE.mxFree(strPointer);
destroy(strArray);
assertEquals(actualValue, expectedValue);
}
@Test
public void testDuplicateArray() {
MXArray a = createDoubleMatrix(0, 0);
destroy(a);
MXArray b = MXLibrary.INSTANCE.mxDuplicateArray(a);
destroy(b);
}
@Test
public void testEpsInfNaN() {
assertTrue(MXLibrary.INSTANCE.mxGetEps() < 1e-9);
assertTrue(Double.isInfinite(MXLibrary.INSTANCE.mxGetInf()));
assertTrue(Double.isNaN(MXLibrary.INSTANCE.mxGetNaN()));
assertTrue(MXLibrary.INSTANCE.mxIsFinite(Double.MIN_VALUE));
assertTrue(MXLibrary.INSTANCE.mxIsFinite(Double.MAX_VALUE));
assertFalse(MXLibrary.INSTANCE.mxIsFinite(Double.NaN));
assertFalse(MXLibrary.INSTANCE.mxIsFinite(Double.POSITIVE_INFINITY));
assertFalse(MXLibrary.INSTANCE.mxIsFinite(Double.NEGATIVE_INFINITY));
}
@Test
public void testIs() {
MXArray a = createDoubleMatrix(0, 0);
assertTrue(MXLibrary.INSTANCE.mxIsEmpty(a));
assertTrue(MXLibrary.INSTANCE.mxIsNumeric(a));
assertFalse(MXLibrary.INSTANCE.mxIsObject(a));
assertFalse(MXLibrary.INSTANCE.mxIsOpaque(a));
assertFalse(MXLibrary.INSTANCE.mxIsCell(a));
assertFalse(MXLibrary.INSTANCE.mxIsSparse(a));
assertFalse(MXLibrary.INSTANCE.mxIsStruct(a));
destroy(a);
}
@Test
public void testGetIsClass() {
MXArray a = createDoubleMatrix(0, 0);
assertEquals(MXLibrary.INSTANCE.mxGetClassName(a), "double");
assertEquals(MXLibrary.DOUBLE_CLASS, MXLibrary.INSTANCE.mxGetClassID(a));
assertTrue(MXLibrary.INSTANCE.mxIsClass(a, "double"));
assertTrue(MXLibrary.INSTANCE.mxIsDouble(a));
assertFalse(MXLibrary.INSTANCE.mxIsComplex(a));
assertFalse(MXLibrary.INSTANCE.mxIsUint16(a));
assertFalse(MXLibrary.INSTANCE.mxIsUint32(a));
assertFalse(MXLibrary.INSTANCE.mxIsUint64(a));
assertFalse(MXLibrary.INSTANCE.mxIsUint8(a));
assertFalse(MXLibrary.INSTANCE.mxIsInt16(a));
assertFalse(MXLibrary.INSTANCE.mxIsInt32(a));
assertFalse(MXLibrary.INSTANCE.mxIsInt64(a));
assertFalse(MXLibrary.INSTANCE.mxIsInt8(a));
assertFalse(MXLibrary.INSTANCE.mxIsLogical(a));
assertFalse(MXLibrary.INSTANCE.mxIsChar(a));
assertFalse(MXLibrary.INSTANCE.mxIsFunctionHandle(a));
destroy(a);
}
private static void destroy(final MXArray ap) {
MXLibrary.INSTANCE.mxDestroyArray(ap);
}
private static MXArray createDoubleMatrix(final int m, final int n) {
return MXLibrary.INSTANCE.mxCreateDoubleMatrix(
new NativeLong(m), new NativeLong(n), MXLibrary.REAL);
}
