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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
describe "StringIO#string" do
it "returns the underlying string" do
io = StringIO.new(str = "hello")
io.string.should equal(str)
end
end
describe "StringIO#string=" do
before(:each) do
@io = StringIO.new("example\nstring")
end
it "returns the passed String" do
str = "test"
(@io.string = str).should equal(str)
end
it "changes the underlying string" do
str = "hello"
@io.string = str
@io.string.should equal(str)
end
it "resets the position" do
@io.pos = 1
@io.string = "other"
@io.pos.should eql(0)
end
it "resets the line number" do
@io.lineno = 1
@io.string = "other"
@io.lineno.should eql(0)
end
it "tries to convert the passed Object to a String using #to_str" do
obj = mock("to_str")
obj.should_receive(:to_str).and_return("to_str")
@io.string = obj
@io.string.should == "to_str"
end
it "raises a TypeError when the passed Object can't be converted to an Integer" do
lambda { @io.seek(Object.new) }.should raise_error(TypeError)
end
end
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