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require 'test/unit'
require_relative 'ruby/envutil'
# mathn redefines too much. It must be isolated to child processes.
class TestMathn < Test::Unit::TestCase
def test_power
assert_in_out_err ['-r', 'mathn', '-e', 'a=1**2;!a'], "", [], [], '[ruby-core:25740]'
assert_in_out_err ['-r', 'mathn', '-e', 'a=(1 << 126)**2;!a'], "", [], [], '[ruby-core:25740]'
end
def assert_separated_equal(options, expected, actual, message = nil)
assert_in_out_err([*options, '-e', "p((#{actual})==(#{expected}))"], "", ["true"], [], message)
end
def test_floor
assert_separated_equal(%w[-rmathn], " 2", "( 13/5).floor")
assert_separated_equal(%w[-rmathn], " 2", "( 5/2).floor")
assert_separated_equal(%w[-rmathn], " 2", "( 12/5).floor")
assert_separated_equal(%w[-rmathn], "-3", "(-12/5).floor")
assert_separated_equal(%w[-rmathn], "-3", "( -5/2).floor")
assert_separated_equal(%w[-rmathn], "-3", "(-13/5).floor")
assert_separated_equal(%w[-rmathn], " 2", "( 13/5).floor(0)")
assert_separated_equal(%w[-rmathn], " 2", "( 5/2).floor(0)")
assert_separated_equal(%w[-rmathn], " 2", "( 12/5).floor(0)")
assert_separated_equal(%w[-rmathn], "-3", "(-12/5).floor(0)")
assert_separated_equal(%w[-rmathn], "-3", "( -5/2).floor(0)")
assert_separated_equal(%w[-rmathn], "-3", "(-13/5).floor(0)")
assert_separated_equal(%w[-rmathn], "( 13/5)", "( 13/5).floor(2)")
assert_separated_equal(%w[-rmathn], "( 5/2)", "( 5/2).floor(2)")
assert_separated_equal(%w[-rmathn], "( 12/5)", "( 12/5).floor(2)")
assert_separated_equal(%w[-rmathn], "(-12/5)", "(-12/5).floor(2)")
assert_separated_equal(%w[-rmathn], "( -5/2)", "( -5/2).floor(2)")
assert_separated_equal(%w[-rmathn], "(-13/5)", "(-13/5).floor(2)")
end
def test_ceil
assert_separated_equal(%w[-rmathn], " 3", "( 13/5).ceil")
assert_separated_equal(%w[-rmathn], " 3", "( 5/2).ceil")
assert_separated_equal(%w[-rmathn], " 3", "( 12/5).ceil")
assert_separated_equal(%w[-rmathn], "-2", "(-12/5).ceil")
assert_separated_equal(%w[-rmathn], "-2", "( -5/2).ceil")
assert_separated_equal(%w[-rmathn], "-2", "(-13/5).ceil")
assert_separated_equal(%w[-rmathn], " 3", "( 13/5).ceil(0)")
assert_separated_equal(%w[-rmathn], " 3", "( 5/2).ceil(0)")
assert_separated_equal(%w[-rmathn], " 3", "( 12/5).ceil(0)")
assert_separated_equal(%w[-rmathn], "-2", "(-12/5).ceil(0)")
assert_separated_equal(%w[-rmathn], "-2", "( -5/2).ceil(0)")
assert_separated_equal(%w[-rmathn], "-2", "(-13/5).ceil(0)")
assert_separated_equal(%w[-rmathn], "( 13/5)", "( 13/5).ceil(2)")
assert_separated_equal(%w[-rmathn], "( 5/2)", "( 5/2).ceil(2)")
assert_separated_equal(%w[-rmathn], "( 12/5)", "( 12/5).ceil(2)")
assert_separated_equal(%w[-rmathn], "(-12/5)", "(-12/5).ceil(2)")
assert_separated_equal(%w[-rmathn], "( -5/2)", "( -5/2).ceil(2)")
assert_separated_equal(%w[-rmathn], "(-13/5)", "(-13/5).ceil(2)")
end
def test_truncate
assert_separated_equal(%w[-rmathn], " 2", "( 13/5).truncate")
assert_separated_equal(%w[-rmathn], " 2", "( 5/2).truncate")
assert_separated_equal(%w[-rmathn], " 2", "( 12/5).truncate")
assert_separated_equal(%w[-rmathn], "-2", "(-12/5).truncate")
assert_separated_equal(%w[-rmathn], "-2", "( -5/2).truncate")
assert_separated_equal(%w[-rmathn], "-2", "(-13/5).truncate")
assert_separated_equal(%w[-rmathn], " 2", "( 13/5).truncate(0)")
assert_separated_equal(%w[-rmathn], " 2", "( 5/2).truncate(0)")
assert_separated_equal(%w[-rmathn], " 2", "( 12/5).truncate(0)")
assert_separated_equal(%w[-rmathn], "-2", "(-12/5).truncate(0)")
assert_separated_equal(%w[-rmathn], "-2", "( -5/2).truncate(0)")
assert_separated_equal(%w[-rmathn], "-2", "(-13/5).truncate(0)")
assert_separated_equal(%w[-rmathn], "( 13/5)", "( 13/5).truncate(2)")
assert_separated_equal(%w[-rmathn], "( 5/2)", "( 5/2).truncate(2)")
assert_separated_equal(%w[-rmathn], "( 12/5)", "( 12/5).truncate(2)")
assert_separated_equal(%w[-rmathn], "(-12/5)", "(-12/5).truncate(2)")
assert_separated_equal(%w[-rmathn], "( -5/2)", "( -5/2).truncate(2)")
assert_separated_equal(%w[-rmathn], "(-13/5)", "(-13/5).truncate(2)")
end
def test_round
assert_separated_equal(%w[-rmathn], " 3", "( 13/5).round")
assert_separated_equal(%w[-rmathn], " 3", "( 5/2).round")
assert_separated_equal(%w[-rmathn], " 2", "( 12/5).round")
assert_separated_equal(%w[-rmathn], "-2", "(-12/5).round")
assert_separated_equal(%w[-rmathn], "-3", "( -5/2).round")
assert_separated_equal(%w[-rmathn], "-3", "(-13/5).round")
assert_separated_equal(%w[-rmathn], " 3", "( 13/5).round(0)")
assert_separated_equal(%w[-rmathn], " 3", "( 5/2).round(0)")
assert_separated_equal(%w[-rmathn], " 2", "( 12/5).round(0)")
assert_separated_equal(%w[-rmathn], "-2", "(-12/5).round(0)")
assert_separated_equal(%w[-rmathn], "-3", "( -5/2).round(0)")
assert_separated_equal(%w[-rmathn], "-3", "(-13/5).round(0)")
assert_separated_equal(%w[-rmathn], "( 13/5)", "( 13/5).round(2)")
assert_separated_equal(%w[-rmathn], "( 5/2)", "( 5/2).round(2)")
assert_separated_equal(%w[-rmathn], "( 12/5)", "( 12/5).round(2)")
assert_separated_equal(%w[-rmathn], "(-12/5)", "(-12/5).round(2)")
assert_separated_equal(%w[-rmathn], "( -5/2)", "( -5/2).round(2)")
assert_separated_equal(%w[-rmathn], "(-13/5)", "(-13/5).round(2)")
end
end
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