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require 'test/unit'
$KCODE = 'none'
class TestFloat < Test::Unit::TestCase
def test_float
assert_equal(2.6.floor, 2)
assert_equal((-2.6).floor, -3)
assert_equal(2.6.ceil, 3)
assert_equal((-2.6).ceil, -2)
assert_equal(2.6.truncate, 2)
assert_equal((-2.6).truncate, -2)
assert_equal(2.6.round, 3)
assert_equal((-2.4).truncate, -2)
assert((13.4 % 1 - 0.4).abs < 0.0001)
nan = 0.0/0
def nan.test(v)
extend Test::Unit::Assertions
assert(self != v)
assert_equal((self < v), false)
assert_equal((self > v), false)
assert_equal((self <= v), false)
assert_equal((self >= v), false)
end
nan.test(nan)
nan.test(0)
nan.test(1)
nan.test(-1)
nan.test(1000)
nan.test(-1000)
nan.test(1_000_000_000_000)
nan.test(-1_000_000_000_000)
nan.test(100.0);
nan.test(-100.0);
nan.test(0.001);
nan.test(-0.001);
nan.test(1.0/0);
nan.test(-1.0/0);
#s = "3.7517675036461267e+17"
#assert(s == sprintf("%.16e", s.to_f))
f = 3.7517675036461267e+17
assert_equal(f, sprintf("%.16e", f).to_f)
end
end
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