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
|
require File.expand_path('../../../spec_helper', __FILE__)
ruby_version_is ""..."1.9" do
describe "Fixnum.induced_from with [Float]" do
it "returns a Fixnum when the passed Float is in Fixnum's range" do
Fixnum.induced_from(2.5).should eql(2)
Fixnum.induced_from(-3.14).should eql(-3)
Fixnum.induced_from(10 - TOLERANCE).should eql(9)
Fixnum.induced_from(TOLERANCE).should eql(0)
end
it "raises a RangeError when the passed Float is out of Fixnum's range" do
lambda { Fixnum.induced_from((2**64).to_f) }.should raise_error(RangeError)
lambda { Fixnum.induced_from(-(2**64).to_f) }.should raise_error(RangeError)
end
end
describe "Fixnum.induced_from" do
it "returns the passed argument when passed a Fixnum" do
Fixnum.induced_from(3).should eql(3)
Fixnum.induced_from(-10).should eql(-10)
end
it "tries to convert non-Integers to a Integers using #to_int" do
obj = mock("Converted to Integer")
obj.should_receive(:to_int).and_return(10)
Fixnum.induced_from(obj)
end
it "raises a TypeError when conversion to Integer returns a Bignum" do
obj = mock("Not converted to Integer")
obj.should_receive(:to_int).and_return(bignum_value)
lambda { Fixnum.induced_from(obj) }.should raise_error(RangeError)
end
end
end
|
