public void testMinus() throws Exception {
Vector val = test.minus(test);
assertEquals("size", test.size(), val.size());
for (int i = 0; i < test.size(); i++) {
assertEquals("get [" + i + ']', 0.0, val.get(i));
}
val = test.minus(test).minus(test);
assertEquals("cardinality", test.size(), val.size());
for (int i = 0; i < test.size(); i++) {
assertEquals("get [" + i + ']', 0.0, val.get(i) + test.get(i));
}
Vector val1 = test.plus(1);
val = val1.minus(test);
for (int i = 0; i < test.size(); i++) {
assertEquals("get [" + i + ']', 1.0, val.get(i));
}
val1 = test.plus(-1);
val = val1.minus(test);
for (int i = 0; i < test.size(); i++) {
assertEquals("get [" + i + ']', -1.0, val.get(i));
}
}
public void testViewPart() throws Exception {
Vector part = test.viewPart(1, 2);
assertEquals("part size", 2, part.getNumNondefaultElements());
for (int i = 0; i < part.size(); i++) {
assertEquals("part[" + i + ']', test.get(i + 1), part.get(i));
}
}
public void testGet() throws Exception {
for (int i = 0; i < test.size(); i++) {
if (i % 2 == 0) {
assertEquals("get [" + i + ']', 0.0, test.get(i));
} else {
assertEquals("get [" + i + ']', values[i / 2], test.get(i));
}
}
}
public void testTimesVector() throws Exception {
Vector val = test.times(test);
assertEquals("size", test.size(), val.size());
for (int i = 0; i < test.size(); i++) {
if (i % 2 == 0) {
assertEquals("get [" + i + ']', 0.0, val.get(i));
} else {
assertEquals("get [" + i + ']', values[i / 2] * values[i / 2], val.get(i));
}
}
}
public void testDivideDouble() throws Exception {
Vector val = test.divide(3);
assertEquals("size", test.size(), val.size());
for (int i = 0; i < test.size(); i++) {
if (i % 2 == 0) {
assertEquals("get [" + i + ']', 0.0, val.get(i));
} else {
assertEquals("get [" + i + ']', values[i / 2] / 3.0, val.get(i), EPSILON);
}
}
}
public void testPlusDouble() throws Exception {
Vector val = test.plus(1);
assertEquals("size", test.size(), val.size());
for (int i = 0; i < test.size(); i++) {
if (i % 2 == 0) {
assertEquals("get [" + i + ']', 1.0, val.get(i));
} else {
assertEquals("get [" + i + ']', values[i / 2] + 1.0, val.get(i));
}
}
}
public void testNormalize() throws Exception {
Vector val = test.normalize();
double mag = Math.sqrt(1.1 * 1.1 + 2.2 * 2.2 + 3.3 * 3.3);
for (int i = 0; i < test.size(); i++) {
if (i % 2 == 0) {
assertEquals("get [" + i + ']', 0.0, val.get(i));
} else {
assertEquals("dot", values[i / 2] / mag, val.get(i));
}
}
}
public void testSet() throws Exception {
test.set(3, 4.5);
for (int i = 0; i < test.size(); i++) {
if (i % 2 == 0) {
assertEquals("get [" + i + ']', 0.0, test.get(i));
} else if (i == 3) {
assertEquals("set [" + i + ']', 4.5, test.get(i));
} else {
assertEquals("set [" + i + ']', values[i / 2], test.get(i));
}
}
}
public void testSparseDoubleVectorInt() throws Exception {
Vector val = new RandomAccessSparseVector(4);
assertEquals("size", 4, val.size());
for (int i = 0; i < 4; i++) {
assertEquals("get [" + i + ']', 0.0, val.get(i));
}
}
public void testGetUnder() {
try {
test.get(-1);
fail("expected exception");
} catch (IndexException e) {
}
}
public void testGetOver() {
try {
test.get(test.size());
fail("expected exception");
} catch (IndexException e) {
}
}
public void testAssignBinaryFunction3() throws Exception {
test.assign(mult(4));
for (int i = 0; i < values.length; i++) {
if (i % 2 == 0) {
assertEquals("get [" + i + ']', 0.0, test.get(i));
} else {
assertEquals("value[" + i + ']', values[i - 1] * 4, test.getQuick(i));
}
}
}
public void testIteratorSet() throws CloneNotSupportedException {
Vector clone = test.clone();
Iterator<Vector.Element> it = clone.iterateNonZero();
while (it.hasNext()) {
Vector.Element e = it.next();
e.set(e.get() * 2.0);
}
it = clone.iterateNonZero();
while (it.hasNext()) {
Vector.Element e = it.next();
assertEquals(test.get(e.index()) * 2.0, e.get());
}
clone = test.clone();
it = clone.iterator();
while (it.hasNext()) {
Vector.Element e = it.next();
e.set(e.get() * 2.0);
}
it = clone.iterator();
while (it.hasNext()) {
Vector.Element e = it.next();
assertEquals(test.get(e.index()) * 2.0, e.get());
}
}
public void testDecodeVector() throws Exception {
Vector val = AbstractVector.decodeVector(test.asFormatString());
for (int i = 0; i < test.size(); i++) {
assertEquals("get [" + i + ']', test.get(i), val.get(i));
}
}
public void testCopy() throws Exception {
Vector copy = test.clone();
for (int i = 0; i < test.size(); i++) {
assertEquals("copy [" + i + ']', test.get(i), copy.get(i));
}
}
