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require 'test/unit'
require 'fox16'
class TC_FXVec2f < Test::Unit::TestCase
def test_default_constructor
FXVec4f.new
end
def test_copy_constructor
vec = FXVec2f.new(2.0, 3.0)
assert_equal(vec, FXVec2f.new(vec)) # also tests the '==' method!
end
def test_construct_from_components
vec = FXVec2f.new(2.0, 3.0)
assert_equal(2.0, vec[0])
assert_equal(2.0, vec.x)
assert_equal(3.0, vec[1])
assert_equal(3.0, vec.y)
end
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def test_getitem
vec = FXVec2f.new(2.0, 3.0)
assert_equal(2.0, vec[0])
assert_equal(3.0, vec[1])
end
def test_setitem
vec = FXVec2f.new(2.0, 3.0)
vec[0] = 1.0
vec[1] = 4.0
assert_equal(1.0, vec[0])
assert_equal(4.0, vec[1])
end
def test_bounds_checks
vec = FXVec2f.new
assert_raises(IndexError) { vec[-1] }
assert_raises(IndexError) { vec[2] }
assert_raises(IndexError) { vec[-1] = 0.0 }
assert_raises(IndexError) { vec[2] = 0.0 }
end
def test_unary_minus
vec = -FXVec2f.new(1.0, 2.0)
assert_equal(vec[0], -1.0)
assert_equal(vec[1], -2.0)
end
def test_add
a = FXVec2f.new(1.0, 2.0)
b = FXVec2f.new(2.0, 4.0)
c = FXVec2f.new(3.0, 6.0)
assert_equal(c, a + b)
end
def test_subtract
a = FXVec2f.new(3.0, 6.0)
b = FXVec2f.new(2.0, 4.0)
c = FXVec2f.new(1.0, 2.0)
assert_equal(c, a - b)
end
def test_multiply_by_scalar
v1 = FXVec2f.new(3.0, 6.0)
v2 = FXVec2f.new(6.0, 12.0)
assert_equal(v2, v1*2)
end
def test_dot_product
v1 = FXVec2f.new(3.0, 6.0)
v2 = FXVec2f.new(2.0, 4.0)
assert_equal(30.0, v1*v2)
assert_equal(30.0, v2*v1)
assert_equal(30.0, v1.dot(v2))
assert_equal(30.0, v2.dot(v1))
end
def test_divide_by_scalar
v1 = FXVec2f.new(6.0, 12.0)
v2 = FXVec2f.new(3.0, 6.0)
assert_equal(v2, v1/2)
assert_raises(ZeroDivisionError) {
v1/0
}
end
def test_length
v = FXVec2f.new(1.0, 1.0)
assert_in_delta(Math.sqrt(2), v.length, 1.0e-7)
end
def test_length2
v = FXVec2f.new(1.0, 1.0)
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end
def test_normalize
vec = FXVec2f.new(1.0, 1.0).normalize
assert_in_delta(1.0/Math.sqrt(2), vec.x, 1.0e-7)
assert_in_delta(1.0/Math.sqrt(2), vec.y, 1.0e-7)
end
def test_lo
v1 = FXVec2f.new(3.0, 2.0)
v2 = FXVec2f.new(2.0, 3.0)
assert_equal(v1.lo(v2), v2.lo(v1))
lo = v1.lo(v2)
assert_equal(2.0, lo.x)
assert_equal(2.0, lo.y)
end
def test_hi
v1 = FXVec2f.new(3.0, 2.0)
v2 = FXVec2f.new(2.0, 3.0)
assert_equal(v1.hi(v2), v2.hi(v1))
hi = v1.hi(v2)
assert_equal(3.0, hi.x)
assert_equal(3.0, hi.y)
end
def test_to_a
ary = FXVec2f.new(1.0, 1.0).to_a
assert_equal(Array, ary.class)
assert_equal(2, ary.length)
assert_equal(1.0, ary[0])
assert_equal(1.0, ary[1])
end
def test_equal
assert(FXVec2f.new(1.0, 2.0) == FXVec2f.new(1.0, 2.0))
end
end