diff options
Diffstat (limited to 'test/ruby/test_rational.rb')
| -rw-r--r-- | test/ruby/test_rational.rb | 55 |
1 files changed, 47 insertions, 8 deletions
diff --git a/test/ruby/test_rational.rb b/test/ruby/test_rational.rb index 301890b620..e0edbde463 100644 --- a/test/ruby/test_rational.rb +++ b/test/ruby/test_rational.rb @@ -117,9 +117,13 @@ class Rational_Test < Test::Unit::TestCase assert_equal(Rational(111, 1000), Rational('1.11e-1')) assert_raise(TypeError){Rational(nil)} assert_raise(ArgumentError){Rational('')} - assert_raise_with_message(ArgumentError, /\u{221a 2668}/) { - Rational("\u{221a 2668}") - } + + EnvUtil.with_default_internal(Encoding::UTF_8) do + assert_raise_with_message(ArgumentError, /\u{221a 2668}/) { + Rational("\u{221a 2668}") + } + end + assert_warning('') { assert_predicate(Rational('1e-99999999999999999999'), :zero?) } @@ -128,6 +132,13 @@ class Rational_Test < Test::Unit::TestCase assert_raise(TypeError){Rational(Object.new, Object.new)} assert_raise(TypeError){Rational(1, Object.new)} + bug12485 = '[ruby-core:75995] [Bug #12485]' + o = Object.new + def o.to_int; 1; end + assert_equal(1, Rational(o, 1), bug12485) + assert_equal(1, Rational(1, o), bug12485) + assert_equal(1, Rational(o, o), bug12485) + o = Object.new def o.to_r; 1/42r; end assert_equal(1/42r, Rational(o)) @@ -158,6 +169,14 @@ class Rational_Test < Test::Unit::TestCase if (1.0/0).infinite? assert_raise(FloatDomainError){Rational(1.0/0)} end + + bug16518 = "[ruby-core:96942] [Bug #16518]" + cls = Class.new(Numeric) do + def /(y); 42; end + def to_r; 1r; end + def to_int; 1; end + end + assert_equal(1/2r, Rational(cls.new, 2), bug16518) end def test_attr @@ -598,6 +617,13 @@ class Rational_Test < Test::Unit::TestCase assert_nothing_raised(TypeError, '[Bug #5020] [ruby-dev:44088]') do Rational(1,2).coerce(Complex(1,1)) end + + assert_raise(ZeroDivisionError) do + 1 / 0r.coerce(0+0i)[0] + end + assert_raise(ZeroDivisionError) do + 1 / 0r.coerce(0.0+0i)[0] + end end class ObjectX @@ -801,6 +827,8 @@ class Rational_Test < Test::Unit::TestCase ng[5, 1, '5/_3'] ng[5, 3, '5/3_'] ng[5, 3, '5/3x'] + + ng[5, 1, '5/-3'] end def test_parse_zero_denominator @@ -834,6 +862,18 @@ class Rational_Test < Test::Unit::TestCase assert_equal(nil, Rational(1, Object.new, exception: false)) } + bug12485 = '[ruby-core:75995] [Bug #12485]' + assert_nothing_raised(RuntimeError, bug12485) { + o = Object.new + def o.to_int; raise; end + assert_equal(nil, Rational(o, exception: false)) + } + assert_nothing_raised(RuntimeError, bug12485) { + o = Object.new + def o.to_int; raise; end + assert_equal(nil, Rational(1, o, exception: false)) + } + o = Object.new; def o.to_r; raise; end assert_nothing_raised(RuntimeError) { @@ -1030,11 +1070,10 @@ class Rational_Test < Test::Unit::TestCase end def test_power_overflow - bug = '[ruby-core:79686] [Bug #13242]: Infinity due to overflow' - x = EnvUtil.suppress_warning {4r**40000000} - assert_predicate x, :infinite?, bug - x = EnvUtil.suppress_warning {(1/4r)**40000000} - assert_equal 0, x, bug + assert_raise(ArgumentError) { 4r**400000000000000000000 } + exp = 4**40000000 + assert_equal exp, 4r**40000000 + assert_equal 1r/exp, (1/4r)**40000000 end def test_positive_p |