@Test
public void extendedConstructorTest_ComponentsMatchGivenComponents_IllegalXComponent() {
Vector v = new Vector(Double.NaN, 6);
assertFalse(Util.fuzzyEquals(v._X(), 5));
assertTrue(Util.fuzzyEquals(v._X(), 0));
assertTrue(Util.fuzzyEquals(v._Y(), 6));
}
@Test
public void GetUnitVectorInSameDirectionTest_LegalCase() {
Vector v = new Vector(Math.sqrt(2) / 2, Math.sqrt(2) / 2);
Vector result = testVector1.getUnitVectorInDirection();
assertTrue(Util.fuzzyEquals(v._X(), result._X()));
assertTrue(Util.fuzzyEquals(v._Y(), result._Y()));
}
@Test
public void getDifferenceTest_PerfectParameters() {
Vector v = new Vector(5, 15);
Vector differenceVector = testVector1.getDifference(testVector2);
assertTrue(Util.fuzzyEquals(differenceVector._X(), v._X()));
assertTrue(Util.fuzzyEquals(differenceVector._Y(), v._Y()));
}
@Test
public void getSumTest_PerfectParameters() {
Vector v = new Vector(15, 5);
Vector sumVector = testVector1.getSum(testVector2);
assertTrue(Util.fuzzyEquals(sumVector._X(), v._X()));
assertTrue(Util.fuzzyEquals(sumVector._Y(), v._Y()));
}
@Test
public void setXComponentTest_IllegalCase() {
testVector1.setX(Double.NaN);
assertFalse(Util.fuzzyEquals(testVector1._X(), Double.NaN));
}
@Test
public void setXComponentTest_LegalCase() {
testVector1.setX(5);
assertTrue(Util.fuzzyEquals(testVector1._X(), 5));
}
@Test
public void simpleConstructorTest_ComponentsMatchZero() {
Vector v = new Vector();
assertTrue(Util.fuzzyEquals(v._X(), 0));
assertTrue(Util.fuzzyEquals(v._Y(), 0));
}
@Test
public void byVectorConstructorTest_ComponentsMatchGivenVectorsComponents_PerfectParameters() {
Vector v = new Vector(testVector1);
assertTrue(Util.fuzzyEquals(v._X(), testVector1._X()));
assertTrue(Util.fuzzyEquals(v._Y(), testVector1._Y()));
}
@Test
public void extendedConstructorTest_ComponentsMatchGivenComponents_PerfectParameters() {
Vector v = new Vector(5, 6);
assertTrue(Util.fuzzyEquals(v._X(), 5));
assertTrue(Util.fuzzyEquals(v._Y(), 6));
}
@Test
public void scaleByTest_PerfectParameters() {
Vector scaleVector = testVector1.getScaledBy(2.0);
assertTrue(Util.fuzzyEquals(scaleVector._X(), 20.0));
assertTrue(Util.fuzzyEquals(scaleVector._Y(), 20.0));
}
