public void Vector2EqualsTest()
{
Vector2 a = new Vector2(1.0f, 2.0f);
Vector2 b = new Vector2(1.0f, 2.0f);
// 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 Quaternion();
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 Vector2EqualsTest1()
{
Vector2 a = new Vector2(1.0f, 2.0f);
Vector2 b = new Vector2(1.0f, 2.0f);
// 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);
}
public void Vector2EqualsNanTest()
{
Vector2 a = new Vector2(Single.NaN, 0);
Vector2 b = new Vector2(0, Single.NaN);
Assert.False(a == Vector2.Zero);
Assert.False(b == Vector2.Zero);
Assert.True(a != Vector2.Zero);
Assert.True(b != Vector2.Zero);
Assert.False(a.Equals(Vector2.Zero));
Assert.False(b.Equals(Vector2.Zero));
// Counterintuitive result - IEEE rules for NaN comparison are weird!
Assert.False(a.Equals(a));
Assert.False(b.Equals(b));
}
