diff options
Diffstat (limited to 'spec/ruby/core/complex/arg_spec.rb')
| -rw-r--r-- | spec/ruby/core/complex/arg_spec.rb | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/spec/ruby/core/complex/arg_spec.rb b/spec/ruby/core/complex/arg_spec.rb index 48f8a94cf5..dd64102d77 100644 --- a/spec/ruby/core/complex/arg_spec.rb +++ b/spec/ruby/core/complex/arg_spec.rb @@ -1,7 +1,11 @@ -require File.expand_path('../../../spec_helper', __FILE__) - -require File.expand_path('../../../shared/complex/arg', __FILE__) +require_relative '../../spec_helper' describe "Complex#arg" do - it_behaves_like(:complex_arg, :arg) + it "returns the argument -- i.e., the angle from (1, 0) in the complex plane" do + two_pi = 2 * Math::PI + (Complex(1, 0).arg % two_pi).should be_close(0, TOLERANCE) + (Complex(0, 2).arg % two_pi).should be_close(Math::PI * 0.5, TOLERANCE) + (Complex(-100, 0).arg % two_pi).should be_close(Math::PI, TOLERANCE) + (Complex(0, -75.3).arg % two_pi).should be_close(Math::PI * 1.5, TOLERANCE) + end end |