mirror of
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298 lines
8.3 KiB
Ruby
298 lines
8.3 KiB
Ruby
require_relative '../../spec_helper'
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require_relative 'fixtures/classes'
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describe "StringIO#reopen when passed [Object, Integer]" do
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before :each do
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@io = StringIO.new("example")
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end
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it "reopens self with the passed Object in the passed mode" do
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@io.reopen("reopened", IO::RDONLY)
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@io.closed_read?.should be_false
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@io.closed_write?.should be_true
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@io.string.should == "reopened"
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@io.reopen("reopened, twice", IO::WRONLY)
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@io.closed_read?.should be_true
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@io.closed_write?.should be_false
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@io.string.should == "reopened, twice"
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@io.reopen("reopened, another time", IO::RDWR)
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@io.closed_read?.should be_false
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@io.closed_write?.should be_false
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@io.string.should == "reopened, another time"
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end
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ruby_version_is ""..."2.8" do
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# NOTE: WEIRD!
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it "does not taint self when the passed Object was tainted" do
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@io.reopen("reopened".taint, IO::RDONLY)
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@io.tainted?.should be_false
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@io.reopen("reopened".taint, IO::WRONLY)
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@io.tainted?.should be_false
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end
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end
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it "tries to convert the passed Object to a String using #to_str" do
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obj = mock("to_str")
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obj.should_receive(:to_str).and_return("to_str")
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@io.reopen(obj, IO::RDWR)
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@io.string.should == "to_str"
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end
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it "raises a TypeError when the passed Object can't be converted to a String" do
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-> { @io.reopen(Object.new, IO::RDWR) }.should raise_error(TypeError)
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end
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it "raises an Errno::EACCES when trying to reopen self with a frozen String in write-mode" do
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-> { @io.reopen("burn".freeze, IO::WRONLY) }.should raise_error(Errno::EACCES)
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-> { @io.reopen("burn".freeze, IO::WRONLY | IO::APPEND) }.should raise_error(Errno::EACCES)
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end
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it "raises a #{frozen_error_class} when trying to reopen self with a frozen String in truncate-mode" do
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-> { @io.reopen("burn".freeze, IO::RDONLY | IO::TRUNC) }.should raise_error(frozen_error_class)
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end
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it "does not raise IOError when passed a frozen String in read-mode" do
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@io.reopen("burn".freeze, IO::RDONLY)
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@io.string.should == "burn"
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end
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end
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describe "StringIO#reopen when passed [Object, Object]" do
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before :each do
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@io = StringIO.new("example")
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end
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it "reopens self with the passed Object in the passed mode" do
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@io.reopen("reopened", "r")
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@io.closed_read?.should be_false
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@io.closed_write?.should be_true
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@io.string.should == "reopened"
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@io.reopen("reopened, twice", "r+")
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@io.closed_read?.should be_false
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@io.closed_write?.should be_false
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@io.string.should == "reopened, twice"
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@io.reopen("reopened, another", "w+")
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@io.closed_read?.should be_false
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@io.closed_write?.should be_false
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@io.string.should == ""
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@io.reopen("reopened, another time", "r+")
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@io.closed_read?.should be_false
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@io.closed_write?.should be_false
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@io.string.should == "reopened, another time"
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end
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it "truncates the passed String when opened in truncate mode" do
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@io.reopen(str = "reopened", "w")
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str.should == ""
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end
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ruby_version_is ""..."2.8" do
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# NOTE: WEIRD!
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it "does not taint self when the passed Object was tainted" do
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@io.reopen("reopened".taint, "r")
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@io.tainted?.should be_false
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@io.reopen("reopened".taint, "w")
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@io.tainted?.should be_false
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end
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end
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it "tries to convert the passed Object to a String using #to_str" do
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obj = mock("to_str")
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obj.should_receive(:to_str).and_return("to_str")
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@io.reopen(obj, "r")
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@io.string.should == "to_str"
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end
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it "raises a TypeError when the passed Object can't be converted to a String using #to_str" do
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-> { @io.reopen(Object.new, "r") }.should raise_error(TypeError)
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end
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it "resets self's position to 0" do
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@io.read(5)
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@io.reopen("reopened")
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@io.pos.should eql(0)
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end
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it "resets self's line number to 0" do
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@io.gets
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@io.reopen("reopened")
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@io.lineno.should eql(0)
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end
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it "tries to convert the passed mode Object to an Integer using #to_str" do
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obj = mock("to_str")
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obj.should_receive(:to_str).and_return("r")
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@io.reopen("reopened", obj)
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@io.closed_read?.should be_false
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@io.closed_write?.should be_true
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@io.string.should == "reopened"
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end
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it "raises an Errno::EACCES error when trying to reopen self with a frozen String in write-mode" do
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-> { @io.reopen("burn".freeze, 'w') }.should raise_error(Errno::EACCES)
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-> { @io.reopen("burn".freeze, 'w+') }.should raise_error(Errno::EACCES)
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-> { @io.reopen("burn".freeze, 'a') }.should raise_error(Errno::EACCES)
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-> { @io.reopen("burn".freeze, "r+") }.should raise_error(Errno::EACCES)
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end
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it "does not raise IOError if a frozen string is passed in read mode" do
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@io.reopen("burn".freeze, "r")
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@io.string.should == "burn"
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end
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end
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describe "StringIO#reopen when passed [String]" do
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before :each do
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@io = StringIO.new("example")
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end
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it "reopens self with the passed String in read-write mode" do
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@io.close
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@io.reopen("reopened")
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@io.closed_write?.should be_false
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@io.closed_read?.should be_false
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@io.string.should == "reopened"
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end
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ruby_version_is ""..."2.8" do
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# NOTE: WEIRD!
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it "does not taint self when the passed Object was tainted" do
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@io.reopen("reopened".taint)
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@io.tainted?.should be_false
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end
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end
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it "resets self's position to 0" do
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@io.read(5)
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@io.reopen("reopened")
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@io.pos.should eql(0)
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end
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it "resets self's line number to 0" do
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@io.gets
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@io.reopen("reopened")
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@io.lineno.should eql(0)
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end
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end
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describe "StringIO#reopen when passed [Object]" do
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before :each do
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@io = StringIO.new("example")
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end
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it "raises a TypeError when passed an Object that can't be converted to a StringIO" do
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-> { @io.reopen(Object.new) }.should raise_error(TypeError)
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end
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it "does not try to convert the passed Object to a String using #to_str" do
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obj = mock("not to_str")
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obj.should_not_receive(:to_str)
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-> { @io.reopen(obj) }.should raise_error(TypeError)
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end
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it "tries to convert the passed Object to a StringIO using #to_strio" do
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obj = mock("to_strio")
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obj.should_receive(:to_strio).and_return(StringIO.new("to_strio"))
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@io.reopen(obj)
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@io.string.should == "to_strio"
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end
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# NOTE: WEIRD!
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ruby_version_is ""..."2.7" do
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it "taints self when the passed Object was tainted" do
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@io.reopen(StringIO.new("reopened").taint)
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@io.tainted?.should be_true
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end
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end
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end
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describe "StringIO#reopen when passed no arguments" do
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before :each do
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@io = StringIO.new("example\nsecond line")
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end
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it "resets self's mode to read-write" do
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@io.close
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@io.reopen
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@io.closed_read?.should be_false
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@io.closed_write?.should be_false
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end
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it "resets self's position to 0" do
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@io.read(5)
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@io.reopen
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@io.pos.should eql(0)
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end
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it "resets self's line number to 0" do
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@io.gets
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@io.reopen
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@io.lineno.should eql(0)
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end
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end
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# NOTE: Some reopen specs disabled due to MRI bugs. See:
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# http://rubyforge.org/tracker/index.php?func=detail&aid=13919&group_id=426&atid=1698
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# for details.
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describe "StringIO#reopen" do
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before :each do
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@io = StringIO.new('hello','a')
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end
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# TODO: find out if this is really a bug
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it "reopens a stream when given a String argument" do
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@io.reopen('goodbye').should == @io
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@io.string.should == 'goodbye'
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@io << 'x'
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@io.string.should == 'xoodbye'
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end
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it "reopens a stream in append mode when flagged as such" do
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@io.reopen('goodbye', 'a').should == @io
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@io.string.should == 'goodbye'
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@io << 'x'
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@io.string.should == 'goodbyex'
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end
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it "reopens and truncate when reopened in write mode" do
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@io.reopen('goodbye', 'wb').should == @io
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@io.string.should == ''
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@io << 'x'
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@io.string.should == 'x'
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end
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it "truncates the given string, not a copy" do
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str = 'goodbye'
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@io.reopen(str, 'w')
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@io.string.should == ''
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str.should == ''
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end
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ruby_version_is ""..."2.7" do
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it "taints self if the provided StringIO argument is tainted" do
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new_io = StringIO.new("tainted")
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new_io.taint
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@io.reopen(new_io)
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@io.tainted?.should == true
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end
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end
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it "does not truncate the content even when the StringIO argument is in the truncate mode" do
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orig_io = StringIO.new("Original StringIO", IO::RDWR|IO::TRUNC)
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orig_io.write("BLAH") # make sure the content is not empty
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@io.reopen(orig_io)
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@io.string.should == "BLAH"
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end
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end
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