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ruby--ruby/spec/ruby/library/bigdecimal/coerce_spec.rb

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require File.expand_path('../../../spec_helper', __FILE__)
require 'bigdecimal'
describe "BigDecimal#coerce" do
it "returns [other, self] both as BigDecimal" do
one = BigDecimal("1.0")
five_point_28 = BigDecimal("5.28")
zero_minus = BigDecimal("-0.0")
some_value = 32434234234234234234
BigDecimal("1.2").coerce(1).should == [one, BigDecimal("1.2")]
five_point_28.coerce(1.0).should == [one, BigDecimal("5.28")]
one.coerce(one).should == [one, one]
one.coerce(2.5).should == [2.5, one]
BigDecimal("1").coerce(3.14).should == [3.14, one]
a, b = zero_minus.coerce(some_value)
a.should == BigDecimal(some_value.to_s)
b.should == zero_minus
a, b = one.coerce(some_value)
a.should == BigDecimal(some_value.to_s)
b.to_f.should be_close(1.0, TOLERANCE) # can we take out the to_f once BigDecimal#- is implemented?
b.should == one
end
end