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
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
require_relative '../../spec_helper'
require 'bigdecimal'
describe "BigDecimal#frac" do
before :each do
@zero = BigDecimal("0")
@mixed = BigDecimal("1.23456789")
@pos_int = BigDecimal("2E5555")
@neg_int = BigDecimal("-2E5555")
@pos_frac = BigDecimal("2E-9999")
@neg_frac = BigDecimal("-2E-9999")
@infinity = BigDecimal("Infinity")
@infinity_neg = BigDecimal("-Infinity")
@nan = BigDecimal("NaN")
@zero_pos = BigDecimal("+0")
@zero_neg = BigDecimal("-0")
end
it "returns a BigDecimal" do
@pos_int.frac.kind_of?(BigDecimal).should == true
@neg_int.frac.kind_of?(BigDecimal).should == true
@pos_frac.kind_of?(BigDecimal).should == true
@neg_frac.kind_of?(BigDecimal).should == true
end
it "returns the fractional part of the absolute value" do
@mixed.frac.should == BigDecimal("0.23456789")
@pos_frac.frac.should == @pos_frac
@neg_frac.frac.should == @neg_frac
end
it "returns 0 if the value is 0" do
@zero.frac.should == @zero
end
it "returns 0 if the value is an integer" do
@pos_int.frac.should == @zero
@neg_int.frac.should == @zero
end
it "correctly handles special values" do
@infinity.frac.should == @infinity
@infinity_neg.frac.should == @infinity_neg
@nan.frac.should.nan?
end
end
|
