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require 'test/unit'
require 'fox16'
class TC_FXVec3d < Test::Unit::TestCase
def test_default_constructor
FXVec3d.new
end
def test_copy_constructor
vec = FXVec3d.new(1, 2, 3)
assert_equal(vec, FXVec3d.new(vec)) # also tests the '==' method!
end
def test_construct_from_components
vec = FXVec3d.new(1, 2, 3)
assert_equal(1, vec[0])
assert_equal(1, vec.x)
assert_equal(2, vec[1])
assert_equal(2, vec.y)
assert_equal(3, vec[2])
assert_equal(3, vec.z)
end
def test_construct_from_color
vec = FXVec3d.new(FXRGB(1, 1, 1))
assert_in_delta(0.003921568627, vec.x, 1.0e-12)
assert_in_delta(0.003921568627, vec.y, 1.0e-12)
assert_in_delta(0.003921568627, vec.z, 1.0e-12)
end
def test_getitem
v = FXVec3d.new(1, 2, 3)
assert_equal(1, v[0])
assert_equal(2, v[1])
assert_equal(3, v[2])
end
def test_setitem
v = FXVec3d.new
assert_equal(1, v[0] = 1)
assert_equal(2, v[1] = 2)
assert_equal(3, v[2] = 3)
end
def test_bounds_checks
vec = FXVec3d.new
assert_raises(IndexError) { vec[-1] }
assert_raises(IndexError) { vec[3] }
assert_raises(IndexError) { vec[-1] = 0.0 }
assert_raises(IndexError) { vec[3] = 0.0 }
end
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def test_unary_minus
assert_equal(FXVec3d.new(-1, -2, -3), -FXVec3d.new(1, 2, 3))
end
def test_add
a = FXVec3d.new(1, 2, 3)
b = FXVec3d.new(2, 4, 6)
c = FXVec3d.new(3, 6, 9)
assert_equal(c, a + b)
end
def test_subtract
a = FXVec3d.new(3, 6, 9)
b = FXVec3d.new(2, 4, 6)
c = FXVec3d.new(1, 2, 3)
assert_equal(c, a - b)
end
def test_multiply_by_scalar
v1 = FXVec3d.new(3, 6, 9)
v2 = FXVec3d.new(6, 12, 18)
assert_equal(v2, v1*2)
end
def test_divide_by_scalar
v1 = FXVec3d.new(6, 12, 18)
v2 = FXVec3d.new(3, 6, 9)
assert_equal(v2, v1/2)
assert_raises(ZeroDivisionError) {
v1/0
}
end
def test_dot_product
v1 = FXVec3d.new(1, 2, 3)
v2 = FXVec3d.new(1, 2, 3)
assert_equal(14, v1*v2)
assert_equal(14, v2*v1)
assert_equal(14, v1.dot(v2))
assert_equal(14, v2.dot(v1))
end
def test_cross_product
end
def test_length
v = FXVec3d.new(1, 1, 1)
assert_in_delta(Math.sqrt(3), v.length, 1.0e-12)
end
def test_length2
v = FXVec3d.new(1, 1, 1)
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end
def test_normalize
vec = FXVec3d.new(1, 1, 1).normalize
assert_in_delta(1/Math.sqrt(3), vec.x, 1.0e-12)
assert_in_delta(1/Math.sqrt(3), vec.y, 1.0e-12)
assert_in_delta(1/Math.sqrt(3), vec.z, 1.0e-12)
end
def test_lo
v1 = FXVec3d.new(3, 2, 1)
v2 = FXVec3d.new(1, 2, 3)
assert_equal(v1.lo(v2), v2.lo(v1))
lo = v1.lo(v2)
assert_equal(1, lo.x)
assert_equal(2, lo.y)
assert_equal(1, lo.z)
end
def test_hi
v1 = FXVec3d.new(1, 2, 3)
v2 = FXVec3d.new(3, 2, 1)
assert_equal(v1.hi(v2), v2.hi(v1))
hi = v1.hi(v2)
assert_equal(3, hi.x)
assert_equal(2, hi.y)
assert_equal(3, hi.z)
end
def test_to_a
ary = FXVec3d.new(1, 1, 1).to_a
assert_equal(Array, ary.class)
assert_equal(3, ary.length)
assert_equal(1, ary[0])
assert_equal(1, ary[1])
assert_equal(1, ary[2])
end
def test_equal
assert(FXVec3d.new(1, 2, 3) == FXVec3d.new(1, 2, 3))
end
end