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describe :io_readlines, :shared => true do
it "raises TypeError if the first parameter is nil" do
lambda { IO.send(@method, nil, &@object) }.should raise_error(TypeError)
end
it "raises an Errno::ENOENT if the file does not exist" do
name = tmp("nonexistent.txt")
lambda { IO.send(@method, name, &@object) }.should raise_error(Errno::ENOENT)
end
it "yields a single string with entire content when the separator is nil" do
result = IO.send(@method, @name, nil, &@object)
(result ? result : ScratchPad.recorded).should == [IO.read(@name)]
end
it "yields a sequence of paragraphs when the separator is an empty string" do
result = IO.send(@method, @name, "", &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines_empty_separator
end
end
describe :io_readlines_options_18, :shared => true do
it "does not change $_" do
$_ = "test"
IO.send(@method, @name, &@object)
$_.should == "test"
end
describe "when passed name" do
it "calls #to_str to convert the name" do
name = mock("io readlines name")
name.should_receive(:to_str).and_return(@name)
result = IO.send(@method, name, &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines
end
end
describe "when passed name, separator" do
it "calls #to_str to convert the name" do
name = mock("io readlines name")
name.should_receive(:to_str).and_return(@name)
result = IO.send(@method, name, &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines
end
it "calls #to_str to convert the separator" do
sep = mock("io readlines separator")
sep.should_receive(:to_str).at_least(1).and_return(" ")
result = IO.send(@method, @name, sep, &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator
end
end
end
describe :io_readlines_options_19, :shared => true do
before :each do
@filename = tmp("io readlines options")
end
after :each do
rm_r @filename
end
describe "when passed name" do
it "calls #to_path to convert the name" do
name = mock("io name to_path")
name.should_receive(:to_path).and_return(@name)
IO.send(@method, name, &@object)
end
it "defaults to $/ as the separator" do
result = IO.send(@method, @name, &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines
end
end
describe "when passed name, object" do
it "calls #to_str to convert the object to a separator" do
sep = mock("io readlines separator")
sep.should_receive(:to_str).at_least(1).and_return(" ")
result = IO.send(@method, @name, sep, &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator
end
describe "when the object is a Fixnum" do
before :each do
@sep = $/
end
after :each do
$/ = @sep
end
it "defaults to $/ as the separator" do
$/ = " "
result = IO.send(@method, @name, 10, &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
end
it "uses the object as a limit if it is a Fixnum" do
result = IO.send(@method, @name, 10, &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines_limit
end
end
describe "when the object is a String" do
it "uses the value as the separator" do
result = IO.send(@method, @name, " ", &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator
end
it "accepts non-ASCII data as separator" do
result = IO.send(@method, @name, "\303\250".force_encoding("utf-8"), &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines_arbitrary_separator
end
end
describe "when the object is a Hash" do
it "uses the value as the options hash" do
result = IO.send(@method, @name, :mode => "r", &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines
end
end
end
describe "when passed name, object, object" do
describe "when the first object is a Fixnum" do
it "uses the second object as an options Hash" do
lambda do
IO.send(@method, @filename, 10, :mode => "w", &@object)
end.should raise_error(IOError)
end
it "calls #to_hash to convert the second object to a Hash" do
options = mock("io readlines options Hash")
options.should_receive(:to_hash).and_return({ :mode => "w" })
lambda do
IO.send(@method, @filename, 10, options, &@object)
end.should raise_error(IOError)
end
end
describe "when the first object is a String" do
it "uses the second object as a limit if it is a Fixnum" do
result = IO.send(@method, @name, " ", 10, &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
end
it "calls #to_int to convert the second object" do
limit = mock("io readlines limit")
limit.should_receive(:to_int).at_least(1).and_return(10)
result = IO.send(@method, @name, " ", limit, &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
end
it "uses the second object as an options Hash" do
lambda do
IO.send(@method, @filename, " ", :mode => "w", &@object)
end.should raise_error(IOError)
end
it "calls #to_hash to convert the second object to a Hash" do
options = mock("io readlines options Hash")
options.should_receive(:to_hash).and_return({ :mode => "w" })
lambda do
IO.send(@method, @filename, " ", options, &@object)
end.should raise_error(IOError)
end
end
describe "when the first object is not a String or Fixnum" do
it "calls #to_str to convert the object to a String" do
sep = mock("io readlines separator")
sep.should_receive(:to_str).at_least(1).and_return(" ")
result = IO.send(@method, @name, sep, 10, :mode => "r", &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
end
it "uses the second object as a limit if it is a Fixnum" do
result = IO.send(@method, @name, " ", 10, :mode => "r", &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
end
it "calls #to_int to convert the second object" do
limit = mock("io readlines limit")
limit.should_receive(:to_int).at_least(1).and_return(10)
result = IO.send(@method, @name, " ", limit, &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
end
it "uses the second object as an options Hash" do
lambda do
IO.send(@method, @filename, " ", :mode => "w", &@object)
end.should raise_error(IOError)
end
it "calls #to_hash to convert the second object to a Hash" do
options = mock("io readlines options Hash")
options.should_receive(:to_hash).and_return({ :mode => "w" })
lambda do
IO.send(@method, @filename, " ", options, &@object)
end.should raise_error(IOError)
end
end
end
describe "when passed name, separator, limit, options" do
it "calls #to_path to convert the name object" do
name = mock("io name to_path")
name.should_receive(:to_path).and_return(@name)
result = IO.send(@method, name, " ", 10, :mode => "r", &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
end
it "calls #to_str to convert the separator object" do
sep = mock("io readlines separator")
sep.should_receive(:to_str).at_least(1).and_return(" ")
result = IO.send(@method, @name, sep, 10, :mode => "r", &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
end
it "calls #to_int to convert the limit argument" do
limit = mock("io readlines limit")
limit.should_receive(:to_int).at_least(1).and_return(10)
result = IO.send(@method, @name, " ", limit, :mode => "r", &@object)
(result ? result : ScratchPad.recorded).should == IOSpecs.lines_space_separator_limit
end
it "calls #to_hash to convert the options object" do
options = mock("io readlines options Hash")
options.should_receive(:to_hash).and_return({ :mode => "w" })
lambda do
IO.send(@method, @filename, " ", 10, options, &@object)
end.should raise_error(IOError)
end
end
end
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