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9dc121cc57
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63768 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
51 lines
1.6 KiB
Ruby
51 lines
1.6 KiB
Ruby
require_relative '../../spec_helper'
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require_relative 'shared/arithmetic_coerce'
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describe "Integer#*" do
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ruby_version_is "2.4"..."2.5" do
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it_behaves_like :integer_arithmetic_coerce_rescue, :*
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end
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ruby_version_is "2.5" do
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it_behaves_like :integer_arithmetic_coerce_not_rescue, :*
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end
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context "fixnum" do
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it "returns self multiplied by the given Integer" do
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(4923 * 2).should == 9846
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(1342177 * 800).should == 1073741600
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(65536 * 65536).should == 4294967296
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(256 * bignum_value).should == 2361183241434822606848
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(6712 * 0.25).should == 1678.0
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end
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it "raises a TypeError when given a non-Integer" do
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lambda {
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(obj = mock('10')).should_receive(:to_int).any_number_of_times.and_return(10)
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13 * obj
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}.should raise_error(TypeError)
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lambda { 13 * "10" }.should raise_error(TypeError)
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lambda { 13 * :symbol }.should raise_error(TypeError)
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end
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end
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context "bignum" do
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before :each do
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@bignum = bignum_value(772)
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end
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it "returns self multiplied by the given Integer" do
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(@bignum * (1/bignum_value(0xffff).to_f)).should be_close(1.0, TOLERANCE)
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(@bignum * (1/bignum_value(0xffff).to_f)).should be_close(1.0, TOLERANCE)
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(@bignum * 10).should == 92233720368547765800
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(@bignum * (@bignum - 40)).should == 85070591730234629737795195287525433200
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end
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it "raises a TypeError when given a non-Integer" do
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lambda { @bignum * mock('10') }.should raise_error(TypeError)
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lambda { @bignum * "10" }.should raise_error(TypeError)
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lambda { @bignum * :symbol }.should raise_error(TypeError)
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end
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end
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end
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