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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67361 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
32 lines
922 B
Ruby
32 lines
922 B
Ruby
require_relative '../../spec_helper'
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require_relative 'shared/mult'
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require 'bigdecimal'
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describe "BigDecimal#mult" do
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it_behaves_like :bigdecimal_mult, :mult, [10]
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end
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describe "BigDecimal#mult" do
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before :each do
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@one = BigDecimal "1"
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@e3_minus = BigDecimal("3E-20001")
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@e3_plus = BigDecimal("3E20001")
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@e = BigDecimal "1.00000000000000000000123456789"
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@tolerance = @e.sub @one, 1000
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@tolerance2 = BigDecimal "30001E-20005"
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end
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it "multiply self with other with (optional) precision" do
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@e.mult(@one, 1).should be_close(@one, @tolerance)
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@e3_minus.mult(@one, 1).should be_close(0, @tolerance2)
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end
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describe "with Object" do
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it "tries to coerce the other operand to self" do
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object = mock("Object")
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object.should_receive(:coerce).with(@e3_minus).and_return([@e3_minus, @e3_plus])
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@e3_minus.mult(object, 1).should == BigDecimal("9")
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end
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end
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end
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