diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/t/float.rb | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/test/t/float.rb b/test/t/float.rb index f70bf2d66..0c67f510a 100644 --- a/test/t/float.rb +++ b/test/t/float.rb @@ -143,3 +143,10 @@ assert('Float#truncate', '15.2.9.3.15') do assert_equal( 3, 3.123456789.truncate) assert_equal(-3, -3.1.truncate) end + +assert('Float#nan?') do + assert_true (0.0/0.0).nan? + assert_false 0.0.nan? + assert_false (1.0/0.0).nan? + assert_false (-1.0/0.0).nan? +end |