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require File.dirname(File.join(__rhoGetCurrentDir(), __FILE__)) + '/../../spec_helper' require File.dirname(File.join(__rhoGetCurrentDir(), __FILE__)) + '/fixtures/classes' # sine : (-Inf, Inf) --> (-1.0, 1.0) describe "Math.sin" do it "returns a float" do Math.sin(Math::PI).should be_kind_of(Float) end it "returns the sine of the argument expressed in radians" do Math.sin(Math::PI).should be_close(0.0, TOLERANCE) Math.sin(0).should be_close(0.0, TOLERANCE) Math.sin(Math::PI/2).should be_close(1.0, TOLERANCE) Math.sin(3*Math::PI/2).should be_close(-1.0, TOLERANCE) Math.sin(2*Math::PI).should be_close(0.0, TOLERANCE) end ruby_version_is ""..."1.9" do it "raises an ArgumentError if the argument cannot be coerced with Float()" do lambda { Math.sin("test") }.should raise_error(ArgumentError) end end ruby_version_is "1.9" do it "raises a TypeError if the argument cannot be coerced with Float()" do lambda { Math.sin("test") }.should raise_error(TypeError) end end it "raises a TypeError if the argument is nil" do lambda { Math.sin(nil) }.should raise_error(TypeError) end it "accepts any argument that can be coerced with Float()" do Math.sin(MathSpecs::Float.new).should be_close(0.841470984807897, TOLERANCE) end end describe "Math#sin" do it "is accessible as a private instance method" do IncludesMath.new.send(:sin, 1.21).should be_close(0.935616001553386, TOLERANCE) end end
Version data entries
64 entries across 64 versions & 1 rubygems