Sha256: d778bbf99aa0c5c3299b4db4e788e9023134d162fbd25c1786ced4d3852d629f

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Size: 1.69 KB

Versions: 52

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Stored size: 1.69 KB

Contents

require File.expand_path('../../../spec_helper', __FILE__)

describe "Fixnum#[]" do
  it "returns 1 if the nth bit is set" do
    15[1].should == 1
  end

  it "returns 0 if the nth bit is not set" do
    8[2].should == 0
  end

  it "returns 0 if the nth bit is greater than the most significant bit" do
    2[3].should == 0
  end

  it "returns 0 when passed a negative argument" do
    3[-1].should == 0
  end

  it "calls #to_int to convert the argument to an Integer and returns 1 if the nth bit is set" do
    obj = mock('1')
    obj.should_receive(:to_int).and_return(1)

    2[obj].should == 1
  end

  it "calls #to_int to convert the argument to an Integer and returns 0 if the nth bit is set" do
    obj = mock('0')
    obj.should_receive(:to_int).and_return(0)

    2[obj].should == 0
  end

  it "accepts a Float argument and returns 0 if the bit at the truncated value is not set" do
    13[1.3].should == 0
  end

  it "accepts a Float argument and returns 1 if the bit at the truncated value is set" do
    13[2.1].should == 1
  end

  it "raises a TypeError when passed a String" do
    lambda { 3["3"] }.should raise_error(TypeError)
  end

  it "raises a TypeError when #to_int does not return an Integer" do
    obj = mock('asdf')
    obj.should_receive(:to_int).and_return("asdf")
    lambda { 3[obj] }.should raise_error(TypeError)
  end

  ruby_bug "#", "1.8.6" do # Fixed at MRI 1.8.7
    it "calls #to_int to coerce a String to a Bignum and returns 0" do
      obj = mock('bignum value')
      obj.should_receive(:to_int).and_return(bignum_value())

      3[obj].should == 0
    end
  end

  it "returns 0 when passed a Float in the range of a Bignum" do
    3[bignum_value().to_f].should == 0
  end
end

Version data entries

52 entries across 52 versions & 2 rubygems

Version Path
rhodes-7.6.0 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-7.5.1 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-7.4.1 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-7.1.17 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-6.2.0 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-6.0.11 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-5.5.18 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-5.5.17 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-5.5.15 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-5.5.0.22 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-5.5.2 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-5.5.0.7 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-5.5.0.3 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-5.5.0 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
tauplatform-1.0.3 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
tauplatform-1.0.2 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
tauplatform-1.0.1 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-3.5.1.12 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-3.3.5 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb
rhodes-3.4.2 spec/framework_spec/app/spec/core/fixnum/element_reference_spec.rb