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 'stringio'
require 'zlib'
describe "GzipReader#rewind" do
before :each do
@data = '12345abcde'
@zip = [31, 139, 8, 0, 44, 220, 209, 71, 0, 3, 51, 52, 50, 54, 49, 77,
76, 74, 78, 73, 5, 0, 157, 5, 0, 36, 10, 0, 0, 0].pack('C*')
@io = StringIO.new @zip
ScratchPad.clear
end
it "resets the position of the stream pointer" do
gz = Zlib::GzipReader.new @io
gz.read
gz.pos.should == @data.length
gz.rewind
gz.pos.should == 0
gz.lineno.should == 0
end
it "resets the position of the stream pointer to data previously read" do
gz = Zlib::GzipReader.new @io
first_read = gz.read
gz.rewind
first_read.should == gz.read
end
it "invokes seek method on the associated IO object" do
# first, prepare the mock object:
(obj = mock("io")).should_receive(:get_io).any_number_of_times.and_return(@io)
def obj.read(args); get_io.read(args); end
def obj.seek(pos, whence = 0)
ScratchPad.record :seek
get_io.seek(pos, whence)
end
gz = Zlib::GzipReader.new(obj)
gz.rewind()
ScratchPad.recorded.should == :seek
gz.pos.should == 0
gz.read.should == "12345abcde"
end
end
|
