1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../shared/mult', __FILE__)
require 'bigdecimal'
describe "BigDecimal#*" do
it_behaves_like :bigdecimal_mult, :*, []
end
describe "BigDecimal#*" do
before(:each) do
@e3_minus = BigDecimal("3E-20001")
@e3_plus = BigDecimal("3E20001")
@e = BigDecimal("1.00000000000000000000123456789")
@one = BigDecimal("1")
end
it "multiply self with other" do
(@one * @one).should == @one
(@e3_minus * @e3_plus).should == BigDecimal("9")
# Can't do this till we implement **
# (@e3_minus * @e3_minus).should == @e3_minus ** 2
# So let's rewrite it as:
(@e3_minus * @e3_minus).should == BigDecimal("9E-40002")
(@e * @one).should == @e
end
end
|
