diff options
Diffstat (limited to 'test/ruby/test_float.rb')
| -rw-r--r-- | test/ruby/test_float.rb | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/ruby/test_float.rb b/test/ruby/test_float.rb index cbc6a7886b..b6e643da1f 100644 --- a/test/ruby/test_float.rb +++ b/test/ruby/test_float.rb @@ -144,4 +144,31 @@ class TestFloat < Test::Unit::TestCase assert_operator((-4611686018427387905.0).to_i, :<, 0) assert_operator((-4611686018427387906.0).to_i, :<, 0) end + + def test_cmp + inf = 1.0 / 0.0 + nan = inf / inf + assert_equal(0, 1.0 <=> 1.0) + assert_equal(1, 1.0 <=> 0.0) + assert_equal(-1, 1.0 <=> 2.0) + assert_nil(1.0 <=> nil) + assert_nil(1.0 <=> nan) + assert_nil(nan <=> 1.0) + + assert_equal(0, 1.0 <=> 1) + assert_equal(1, 1.0 <=> 0) + assert_equal(-1, 1.0 <=> 2) + + assert_equal(-1, 1.0 <=> 2**32) + + assert_equal(1, inf <=> (Float::MAX.to_i*2)) + assert_equal(-1, -inf <=> (-Float::MAX.to_i*2)) + assert_equal(-1, (Float::MAX.to_i*2) <=> inf) + assert_equal(1, (-Float::MAX.to_i*2) <=> -inf) + + assert_raise(ArgumentError) { 1.0 > nil } + assert_raise(ArgumentError) { 1.0 >= nil } + assert_raise(ArgumentError) { 1.0 < nil } + assert_raise(ArgumentError) { 1.0 <= nil } + end end |