diff options
Diffstat (limited to 'test/ruby/test_float.rb')
| -rw-r--r-- | test/ruby/test_float.rb | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/test/ruby/test_float.rb b/test/ruby/test_float.rb index b865d339a9..c01e8bb80b 100644 --- a/test/ruby/test_float.rb +++ b/test/ruby/test_float.rb @@ -492,6 +492,22 @@ class TestFloat < Test::Unit::TestCase assert_equal(-1.26, -1.255.round(2)) end + def test_round_ndigits + bug14635 = "[ruby-core:86323]" + f = 0.5 + 31.times do |i| + assert_equal(0.5, f.round(i+1), bug14635 + " (argument: #{i+1})") + end + end + + def test_round_with_precision_min + (0..3).each do |n| + n -= Float::MIN_10_EXP + f = Float::MIN.round(n) + assert_include([Float::MIN.floor(n), Float::MIN.ceil(n)], f, "round(#{n})") + end + end + def test_round_half_even_with_precision assert_equal(767573.18759, 767573.1875850001.round(5, half: :even)) assert_equal(767573.18758, 767573.187585.round(5, half: :even)) @@ -536,6 +552,16 @@ class TestFloat < Test::Unit::TestCase assert_equal(-100000000000000000000000000000000000000000000000000, -1.0.floor(-50), "[Bug #20654]") end + def test_floor_with_precision_min + min = Float::MIN + (0..3).each do |n| + n -= Float::MIN_10_EXP + f = min.floor(n) + assert_operator(f, :<=, Float::MIN, "floor(#{n})") + assert_operator(f, :>=, Float::MIN.floor(n-1), "ceil(#{n})") + end + end + def test_ceil_with_precision assert_equal(+0.1, +0.001.ceil(1)) assert_equal(-0.0, -0.001.ceil(1)) @@ -567,6 +593,19 @@ class TestFloat < Test::Unit::TestCase assert_equal(100000000000000000000000000000000000000000000000000, 1.0.ceil(-50), "[Bug #20654]") end + def test_ceil_with_precision_min + min = Float::MIN + (-Float::MIN_10_EXP).times do |n| + assert_equal(10.pow(-n), min.ceil(n)) + end + (0..3).each do |n| + n -= Float::MIN_10_EXP + f = min.ceil(n) + assert_operator(f, :>=, Float::MIN, "ceil(#{n})") + assert_operator(f, :<=, Float::MIN.ceil(n-1), "ceil(#{n})") + end + end + def test_truncate_with_precision assert_equal(1.100, 1.111.truncate(1)) assert_equal(1.110, 1.111.truncate(2)) @@ -861,7 +900,9 @@ class TestFloat < Test::Unit::TestCase assert_raise(Encoding::CompatibilityError) {Float("0".encode("utf-32le"))} assert_raise(Encoding::CompatibilityError) {Float("0".encode("iso-2022-jp"))} - assert_raise_with_message(ArgumentError, /\u{1f4a1}/) {Float("\u{1f4a1}")} + EnvUtil.with_default_internal(Encoding::UTF_8) do + assert_raise_with_message(ArgumentError, /\u{1f4a1}/) {Float("\u{1f4a1}")} + end end def test_invalid_str |