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-rw-r--r--test/ruby/test_float.rb49
1 files changed, 49 insertions, 0 deletions
diff --git a/test/ruby/test_float.rb b/test/ruby/test_float.rb
index fbf0d87f8e..b91b904d1e 100644
--- a/test/ruby/test_float.rb
+++ b/test/ruby/test_float.rb
@@ -141,6 +141,9 @@ class TestFloat < Test::Unit::TestCase
assert_raise(ArgumentError){Float("1__1")}
assert_raise(ArgumentError){Float("1.")}
assert_raise(ArgumentError){Float("1.e+00")}
+ assert_raise(ArgumentError){Float("0x.1")}
+ assert_raise(ArgumentError){Float("0x1.")}
+ assert_raise(ArgumentError){Float("0x1.0")}
assert_raise(ArgumentError){Float("0x1.p+0")}
# add expected behaviour here.
assert_equal(10, Float("1_0"))
@@ -171,6 +174,24 @@ class TestFloat < Test::Unit::TestCase
assert_raise(ArgumentError, n += z + "A") {Float(n)}
assert_raise(ArgumentError, n += z + ".0") {Float(n)}
end
+
+ x = nil
+ 2000.times do
+ x = Float("0x"+"0"*30)
+ break unless x == 0.0
+ end
+ assert_equal(0.0, x, ->{"%a" % x})
+ x = nil
+ 2000.times do
+ begin
+ x = Float("0x1."+"0"*270)
+ rescue ArgumentError => e
+ raise unless /"0x1\.0{270}"/ =~ e.message
+ else
+ break
+ end
+ end
+ assert_nil(x, ->{"%a" % x})
end
def test_divmod
@@ -206,6 +227,12 @@ class TestFloat < Test::Unit::TestCase
assert_equal(-3.5, (-11.5).remainder(-4))
assert_predicate(Float::NAN.remainder(4), :nan?)
assert_predicate(4.remainder(Float::NAN), :nan?)
+
+ ten = Object.new
+ def ten.coerce(other)
+ [other, 10]
+ end
+ assert_equal(4, 14.0.remainder(ten))
end
def test_to_s
@@ -465,6 +492,17 @@ class TestFloat < Test::Unit::TestCase
assert_equal(-1.26, -1.255.round(2))
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))
+ assert_equal(767573.18758, 767573.1875849998.round(5, half: :even))
+ assert_equal(767573.18758, 767573.187575.round(5, half: :even))
+ assert_equal(-767573.18759, -767573.1875850001.round(5, half: :even))
+ assert_equal(-767573.18758, -767573.187585.round(5, half: :even))
+ assert_equal(-767573.18758, -767573.1875849998.round(5, half: :even))
+ assert_equal(-767573.18758, -767573.187575.round(5, half: :even))
+ end
+
def test_floor_with_precision
assert_equal(+0.0, +0.001.floor(1))
assert_equal(-0.1, -0.001.floor(1))
@@ -882,6 +920,11 @@ class TestFloat < Test::Unit::TestCase
end
assert_equal([5.0, 4.0, 3.0, 2.0], 5.0.step(1.5, -1).to_a)
+
+ assert_equal(11, ((0.24901079128550474)..(340.2500808898068)).step(34.00010700985213).to_a.size)
+ assert_equal(11, ((0.24901079128550474)..(340.25008088980684)).step(34.00010700985213).to_a.size)
+ assert_equal(11, ((-0.24901079128550474)..(-340.2500808898068)).step(-34.00010700985213).to_a.size)
+ assert_equal(11, ((-0.24901079128550474)..(-340.25008088980684)).step(-34.00010700985213).to_a.size)
end
def test_step2
@@ -893,6 +936,7 @@ class TestFloat < Test::Unit::TestCase
a = rand
b = a+rand*1000
s = (b - a) / 10
+ b = a + s*9.999999
seq = (a...b).step(s)
assert_equal(10, seq.to_a.length, seq.inspect)
end
@@ -903,6 +947,11 @@ class TestFloat < Test::Unit::TestCase
(1.0 ... e).step(1E-16) do |n|
assert_operator(n, :<=, e)
end
+
+ assert_equal(10, ((0.24901079128550474)...(340.2500808898068)).step(34.00010700985213).to_a.size)
+ assert_equal(11, ((0.24901079128550474)...(340.25008088980684)).step(34.00010700985213).to_a.size)
+ assert_equal(10, ((-0.24901079128550474)...(-340.2500808898068)).step(-34.00010700985213).to_a.size)
+ assert_equal(11, ((-0.24901079128550474)...(-340.25008088980684)).step(-34.00010700985213).to_a.size)
end
def test_singleton_method