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ruby--ruby/test/ruby/test_float.rb
nahi aaf5d9c03c * test/ruby: tests for ruby itself.
* test/ruby/test_*.rb: split sample/test.rb into 28 test/unit testcases.  some
  tests could not be translates...  search '!!' mark to see it.

* test/csv/test_csv.rb: should require 'csv', not '../lib/csv'.  test runner
  should set load path correctly.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4498 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2003-09-04 16:18:59 +00:00

45 lines
1.1 KiB
Ruby

require 'test/unit'
$KCODE = 'none'
class TestFloat < Test::Unit::TestCase
def test_float
assert(2.6.floor == 2)
assert((-2.6).floor == -3)
assert(2.6.ceil == 3)
assert((-2.6).ceil == -2)
assert(2.6.truncate == 2)
assert((-2.6).truncate == -2)
assert(2.6.round == 3)
assert((-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((self < v) == false)
assert((self > v) == false)
assert((self <= v) == false)
assert((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(f == sprintf("%.16e", f).to_f)
end
end