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# -*- encoding: utf-8 -*-
require File.expand_path('../../fixtures/classes', __FILE__)
describe :io_each, shared: true do
before :each do
@io = IOSpecs.io_fixture "lines.txt"
ScratchPad.record []
end
after :each do
@io.close if @io
end
describe "with no separator" do
it "yields each line to the passed block" do
@io.send(@method) { |s| ScratchPad << s }
ScratchPad.recorded.should == IOSpecs.lines
end
it "yields each line starting from the current position" do
@io.pos = 41
@io.send(@method) { |s| ScratchPad << s }
ScratchPad.recorded.should == IOSpecs.lines[2..-1]
end
it "returns self" do
@io.send(@method) { |l| l }.should equal(@io)
end
it "does not change $_" do
$_ = "test"
@io.send(@method) { |s| s }
$_.should == "test"
end
it "returns self" do
@io.send(@method) { |l| l }.should equal(@io)
end
it "raises an IOError when self is not readable" do
lambda { IOSpecs.closed_io.send(@method) {} }.should raise_error(IOError)
end
it "makes line count accessible via lineno" do
@io.send(@method) { ScratchPad << @io.lineno }
ScratchPad.recorded.should == [ 1,2,3,4,5,6,7,8,9 ]
end
it "makes line count accessible via $." do
@io.send(@method) { ScratchPad << $. }
ScratchPad.recorded.should == [ 1,2,3,4,5,6,7,8,9 ]
end
describe "when no block is given" do
it "returns an Enumerator" do
enum = @io.send(@method)
enum.should be_an_instance_of(Enumerator)
enum.each { |l| ScratchPad << l }
ScratchPad.recorded.should == IOSpecs.lines
end
describe "returned Enumerator" do
describe "size" do
it "should return nil" do
@io.send(@method).size.should == nil
end
end
end
end
end
describe "with limit" do
describe "when limit is 0" do
it "raises an ArgumentError" do
# must pass block so Enumerator is evaluated and raises
lambda { @io.send(@method, 0){} }.should raise_error(ArgumentError)
end
end
end
describe "when passed a String containing one space as a separator" do
it "uses the passed argument as the line separator" do
@io.send(@method, " ") { |s| ScratchPad << s }
ScratchPad.recorded.should == IOSpecs.lines_space_separator
end
it "does not change $_" do
$_ = "test"
@io.send(@method, " ") { |s| }
$_.should == "test"
end
it "tries to convert the passed separator to a String using #to_str" do
obj = mock("to_str")
obj.stub!(:to_str).and_return(" ")
@io.send(@method, obj) { |l| ScratchPad << l }
ScratchPad.recorded.should == IOSpecs.lines_space_separator
end
end
describe "when passed nil as a separator" do
it "yields self's content starting from the current position when the passed separator is nil" do
@io.pos = 100
@io.send(@method, nil) { |s| ScratchPad << s }
ScratchPad.recorded.should == ["qui a linha cinco.\nHere is line six.\n"]
end
end
describe "when passed an empty String as a separator" do
it "yields each paragraph" do
@io.send(@method, "") { |s| ScratchPad << s }
ScratchPad.recorded.should == IOSpecs.paragraphs
end
end
end
describe :io_each_default_separator, shared: true do
before :each do
@io = IOSpecs.io_fixture "lines.txt"
ScratchPad.record []
@sep, $/ = $/, " "
end
after :each do
@io.close if @io
$/ = @sep
end
it "uses $/ as the default line separator" do
@io.send(@method) { |s| ScratchPad << s }
ScratchPad.recorded.should == IOSpecs.lines_space_separator
end
end
|
