mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
129 lines
3.1 KiB
Ruby
129 lines
3.1 KiB
Ruby
require_relative '../../spec_helper'
|
|
require_relative 'fixtures/classes'
|
|
|
|
|
|
describe "StringIO#readline when passed [separator]" do
|
|
before :each do
|
|
@io = StringIO.new("this>is>an>example")
|
|
end
|
|
|
|
it "returns the data read till the next occurrence of the passed separator" do
|
|
@io.readline(">").should == "this>"
|
|
@io.readline(">").should == "is>"
|
|
@io.readline(">").should == "an>"
|
|
@io.readline(">").should == "example"
|
|
end
|
|
|
|
it "sets $_ to the read content" do
|
|
@io.readline(">")
|
|
$_.should == "this>"
|
|
@io.readline(">")
|
|
$_.should == "is>"
|
|
@io.readline(">")
|
|
$_.should == "an>"
|
|
@io.readline(">")
|
|
$_.should == "example"
|
|
end
|
|
|
|
it "updates self's lineno by one" do
|
|
@io.readline(">")
|
|
@io.lineno.should eql(1)
|
|
|
|
@io.readline(">")
|
|
@io.lineno.should eql(2)
|
|
|
|
@io.readline(">")
|
|
@io.lineno.should eql(3)
|
|
end
|
|
|
|
it "returns the next paragraph when the passed separator is an empty String" do
|
|
io = StringIO.new("this is\n\nan example")
|
|
io.readline("").should == "this is\n\n"
|
|
io.readline("").should == "an example"
|
|
end
|
|
|
|
it "returns the remaining content starting at the current position when passed nil" do
|
|
io = StringIO.new("this is\n\nan example")
|
|
io.pos = 5
|
|
io.readline(nil).should == "is\n\nan example"
|
|
end
|
|
|
|
it "tries to convert the passed separator to a String using #to_str" do
|
|
obj = mock('to_str')
|
|
obj.should_receive(:to_str).and_return(">")
|
|
@io.readline(obj).should == "this>"
|
|
end
|
|
end
|
|
|
|
describe "StringIO#readline when passed no argument" do
|
|
before :each do
|
|
@io = StringIO.new("this is\nan example\nfor StringIO#readline")
|
|
end
|
|
|
|
it "returns the data read till the next occurrence of $/ or till eof" do
|
|
@io.readline.should == "this is\n"
|
|
|
|
begin
|
|
old_sep, $/ = $/, " "
|
|
@io.readline.should == "an "
|
|
@io.readline.should == "example\nfor "
|
|
@io.readline.should == "StringIO#readline"
|
|
ensure
|
|
$/ = old_sep
|
|
end
|
|
end
|
|
|
|
it "sets $_ to the read content" do
|
|
@io.readline
|
|
$_.should == "this is\n"
|
|
@io.readline
|
|
$_.should == "an example\n"
|
|
@io.readline
|
|
$_.should == "for StringIO#readline"
|
|
end
|
|
|
|
it "updates self's position" do
|
|
@io.readline
|
|
@io.pos.should eql(8)
|
|
|
|
@io.readline
|
|
@io.pos.should eql(19)
|
|
|
|
@io.readline
|
|
@io.pos.should eql(40)
|
|
end
|
|
|
|
it "updates self's lineno" do
|
|
@io.readline
|
|
@io.lineno.should eql(1)
|
|
|
|
@io.readline
|
|
@io.lineno.should eql(2)
|
|
|
|
@io.readline
|
|
@io.lineno.should eql(3)
|
|
end
|
|
|
|
it "raises an IOError if self is at the end" do
|
|
@io.pos = 40
|
|
-> { @io.readline }.should raise_error(IOError)
|
|
end
|
|
end
|
|
|
|
describe "StringIO#readline when in write-only mode" do
|
|
it "raises an IOError" do
|
|
io = StringIO.new("xyz", "w")
|
|
-> { io.readline }.should raise_error(IOError)
|
|
|
|
io = StringIO.new("xyz")
|
|
io.close_read
|
|
-> { io.readline }.should raise_error(IOError)
|
|
end
|
|
end
|
|
|
|
describe "StringIO#readline when passed [chomp]" do
|
|
it "returns the data read without a trailing newline character" do
|
|
io = StringIO.new("this>is>an>example\n")
|
|
io.readline(chomp: true).should == "this>is>an>example"
|
|
end
|
|
end
|