public void QuaternionEqualsNanTest()
{
Quaternion a = new Quaternion(Single.NaN, 0, 0, 0);
Quaternion b = new Quaternion(0, Single.NaN, 0, 0);
Quaternion c = new Quaternion(0, 0, Single.NaN, 0);
Quaternion d = new Quaternion(0, 0, 0, Single.NaN);
Assert.False(a == new Quaternion(0, 0, 0, 0));
Assert.False(b == new Quaternion(0, 0, 0, 0));
Assert.False(c == new Quaternion(0, 0, 0, 0));
Assert.False(d == new Quaternion(0, 0, 0, 0));
Assert.True(a != new Quaternion(0, 0, 0, 0));
Assert.True(b != new Quaternion(0, 0, 0, 0));
Assert.True(c != new Quaternion(0, 0, 0, 0));
Assert.True(d != new Quaternion(0, 0, 0, 0));
Assert.False(a.Equals(new Quaternion(0, 0, 0, 0)));
Assert.False(b.Equals(new Quaternion(0, 0, 0, 0)));
Assert.False(c.Equals(new Quaternion(0, 0, 0, 0)));
Assert.False(d.Equals(new Quaternion(0, 0, 0, 0)));
Assert.False(a.IsIdentity);
Assert.False(b.IsIdentity);
Assert.False(c.IsIdentity);
Assert.False(d.IsIdentity);
// Counterintuitive result - IEEE rules for NaN comparison are weird!
Assert.False(a.Equals(a));
Assert.False(b.Equals(b));
Assert.False(c.Equals(c));
Assert.False(d.Equals(d));
}
public void QuaternionEqualsTest()
{
Quaternion a = new Quaternion(1.0f, 2.0f, 3.0f, 4.0f);
Quaternion b = new Quaternion(1.0f, 2.0f, 3.0f, 4.0f);
// case 1: compare between same values
object obj = b;
bool expected = true;
bool actual = a.Equals(obj);
Assert.Equal(expected, actual);
// case 2: compare between different values
b.X = 10.0f;
obj = b;
expected = false;
actual = a.Equals(obj);
Assert.Equal(expected, actual);
// case 3: compare between different types.
obj = new Vector4();
expected = false;
actual = a.Equals(obj);
Assert.Equal(expected, actual);
// case 3: compare against null.
obj = null;
expected = false;
actual = a.Equals(obj);
Assert.Equal(expected, actual);
}
public void QuaternionEqualsTest1()
{
Quaternion a = new Quaternion(1.0f, 2.0f, 3.0f, 4.0f);
Quaternion b = new Quaternion(1.0f, 2.0f, 3.0f, 4.0f);
// case 1: compare between same values
bool expected = true;
bool actual = a.Equals(b);
Assert.Equal(expected, actual);
// case 2: compare between different values
b.X = 10.0f;
expected = false;
actual = a.Equals(b);
Assert.Equal(expected, actual);
}
