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-rw-r--r--spec/ruby/library/mathn/math/sqrt_spec.rb17
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diff --git a/spec/ruby/library/mathn/math/sqrt_spec.rb b/spec/ruby/library/mathn/math/sqrt_spec.rb
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+require File.expand_path('../../../../spec_helper', __FILE__)
+
+ruby_version_is ''...'2.5' do
+ require File.expand_path('../shared/sqrt', __FILE__)
+
+ describe "Math#rsqrt" do
+ it_behaves_like :mathn_math_sqrt, :_, IncludesMath.new
+
+ it "is a private instance method" do
+ IncludesMath.should have_private_instance_method(:sqrt)
+ end
+ end
+
+ describe "Math.rsqrt" do
+ it_behaves_like :mathn_math_sqrt, :_, Math
+ end
+end