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author | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-10-28 15:15:48 +0000 |
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committer | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-10-28 15:15:48 +0000 |
commit | 8c5b60eb22d6d661e87992a65d54e3a5bc0aeed4 (patch) | |
tree | 7905b284cb5b3d62c17ad8a939e339621a498a2c /spec/ruby/core/complex/infinite_spec.rb | |
parent | 6530b14cee76e2512424d225e64d3c61dd1f6511 (diff) | |
download | ruby-8c5b60eb22d6d661e87992a65d54e3a5bc0aeed4.tar.gz |
Update to ruby/spec@a6b8805
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60525 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'spec/ruby/core/complex/infinite_spec.rb')
-rw-r--r-- | spec/ruby/core/complex/infinite_spec.rb | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/spec/ruby/core/complex/infinite_spec.rb b/spec/ruby/core/complex/infinite_spec.rb new file mode 100644 index 0000000000..79792c3169 --- /dev/null +++ b/spec/ruby/core/complex/infinite_spec.rb @@ -0,0 +1,34 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +ruby_version_is "2.4" do + describe "Complex#infinite?" do + it "returns nil if magnitude is finite" do + (1+1i).infinite?.should == nil + end + + it "returns 1 for positive infinity" do + value = Complex(Float::INFINITY, 42).infinite? + value.should == 1 + end + + it "returns 1 for positive complex with infinite imaginary" do + value = Complex(1, Float::INFINITY).infinite? + value.should == 1 + end + + it "returns -1 for negative infinity" do + value = -Complex(Float::INFINITY, 42).infinite? + value.should == -1 + end + + it "returns -1 for negative complex with infinite imaginary" do + value = -Complex(1, Float::INFINITY).infinite? + value.should == -1 + end + + it "returns nil for NaN" do + value = Complex(0, Float::NAN).infinite? + value.should == nil + end + end +end |