diff options
Diffstat (limited to 'activesupport/test/core_ext/numeric_ext_test.rb')
-rw-r--r-- | activesupport/test/core_ext/numeric_ext_test.rb | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/activesupport/test/core_ext/numeric_ext_test.rb b/activesupport/test/core_ext/numeric_ext_test.rb index b82448458d..2d8796179e 100644 --- a/activesupport/test/core_ext/numeric_ext_test.rb +++ b/activesupport/test/core_ext/numeric_ext_test.rb @@ -389,4 +389,88 @@ class NumericExtFormattingTest < ActiveSupport::TestCase def test_in_milliseconds assert_equal 10_000, 10.seconds.in_milliseconds end + + # TODO: Remove positive and negative tests when we drop support to ruby < 2.3 + b = 2**64 + b *= b until Bignum === b + + T_ZERO = b.coerce(0).first + T_ONE = b.coerce(1).first + T_MONE = b.coerce(-1).first + + def test_positive + assert_predicate(1, :positive?) + assert_not_predicate(0, :positive?) + assert_not_predicate(-1, :positive?) + assert_predicate(+1.0, :positive?) + assert_not_predicate(+0.0, :positive?) + assert_not_predicate(-0.0, :positive?) + assert_not_predicate(-1.0, :positive?) + assert_predicate(+(0.0.next_float), :positive?) + assert_not_predicate(-(0.0.next_float), :positive?) + assert_predicate(Float::INFINITY, :positive?) + assert_not_predicate(-Float::INFINITY, :positive?) + assert_not_predicate(Float::NAN, :positive?) + + a = Class.new(Numeric) do + def >(x); true; end + end.new + assert_predicate(a, :positive?) + + a = Class.new(Numeric) do + def >(x); false; end + end.new + assert_not_predicate(a, :positive?) + + assert_predicate(1/2r, :positive?) + assert_not_predicate(-1/2r, :positive?) + + assert_predicate(T_ONE, :positive?) + assert_not_predicate(T_MONE, :positive?) + assert_not_predicate(T_ZERO, :positive?) + + e = assert_raises(NoMethodError) do + Complex(1).positive? + end + + assert_match(/positive\?/, e.message) + end + + def test_negative + assert_predicate(-1, :negative?) + assert_not_predicate(0, :negative?) + assert_not_predicate(1, :negative?) + assert_predicate(-1.0, :negative?) + assert_not_predicate(-0.0, :negative?) + assert_not_predicate(+0.0, :negative?) + assert_not_predicate(+1.0, :negative?) + assert_predicate(-(0.0.next_float), :negative?) + assert_not_predicate(+(0.0.next_float), :negative?) + assert_predicate(-Float::INFINITY, :negative?) + assert_not_predicate(Float::INFINITY, :negative?) + assert_not_predicate(Float::NAN, :negative?) + + a = Class.new(Numeric) do + def <(x); true; end + end.new + assert_predicate(a, :negative?) + + a = Class.new(Numeric) do + def <(x); false; end + end.new + assert_not_predicate(a, :negative?) + + assert_predicate(-1/2r, :negative?) + assert_not_predicate(1/2r, :negative?) + + assert_not_predicate(T_ONE, :negative?) + assert_predicate(T_MONE, :negative?) + assert_not_predicate(T_ZERO, :negative?) + + e = assert_raises(NoMethodError) do + Complex(1).negative? + end + + assert_match(/negative\?/, e.message) + end end |