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* For easier modifications of ruby/spec by MRI developers. * .gitignore: track changes under spec. * spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec. These files can therefore be updated like any other file in MRI. Instructions are provided in spec/README. [Feature #13156] [ruby-core:79246] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
65 lines
1.8 KiB
Ruby
65 lines
1.8 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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describe "Bignum#coerce" do
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it "coerces other to a Bignum and returns [other, self] when passed a Fixnum" do
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a = bignum_value
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ary = a.coerce(2)
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ary[0].should be_kind_of(Bignum)
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ary[1].should be_kind_of(Bignum)
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ary.should == [2, a]
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end
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it "returns [other, self] when passed a Bignum" do
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a = bignum_value
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b = bignum_value
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ary = a.coerce(b)
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ary[0].should be_kind_of(Bignum)
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ary[1].should be_kind_of(Bignum)
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ary.should == [b, a]
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end
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it "raises a TypeError when not passed a Fixnum or Bignum" do
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a = bignum_value
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lambda { a.coerce(nil) }.should raise_error(TypeError)
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lambda { a.coerce(mock('str')) }.should raise_error(TypeError)
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lambda { a.coerce(1..4) }.should raise_error(TypeError)
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lambda { a.coerce(:test) }.should raise_error(TypeError)
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end
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ruby_version_is ""..."2.4" do
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it "raises a TypeError when passed a String" do
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a = bignum_value
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lambda { a.coerce("123") }.should raise_error(TypeError)
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end
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it "raises a TypeError when passed a Float" do
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a = bignum_value
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lambda { a.coerce(12.3) }.should raise_error(TypeError)
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end
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end
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ruby_version_is "2.4" do
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it "coerces both values to Floats and returns [other, self] when passed a Float" do
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a = bignum_value
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a.coerce(1.2).should == [1.2, a.to_f]
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end
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it "coerces both values to Floats and returns [other, self] when passed a String" do
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a = bignum_value
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a.coerce("123").should == [123.0, a.to_f]
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end
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it "calls #to_f to coerce other to a Float" do
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b = mock("bignum value")
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b.should_receive(:to_f).and_return(1.2)
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a = bignum_value
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ary = a.coerce(b)
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ary.should == [1.2, a.to_f]
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end
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end
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end
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