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ruby--ruby/spec/rubyspec/optional/capi/io_spec.rb
eregon 95e8c48dd3 Add in-tree mspec and ruby/spec
* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
  These files can therefore be updated like any other file in MRI.
  Instructions are provided in spec/README.
  [Feature #13156] [ruby-core:79246]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-05-07 12:04:49 +00:00

342 lines
8.6 KiB
Ruby

require File.expand_path('../spec_helper', __FILE__)
load_extension('io')
describe "C-API IO function" do
before :each do
@o = CApiIOSpecs.new
@name = tmp("c_api_rb_io_specs")
touch @name
@io = new_io @name, fmode("w:utf-8")
@io.sync = true
end
after :each do
@io.close unless @io.closed?
rm_r @name
end
describe "rb_io_addstr" do
it "calls #to_s to convert the object to a String" do
obj = mock("rb_io_addstr string")
obj.should_receive(:to_s).and_return("rb_io_addstr data")
@o.rb_io_addstr(@io, obj)
File.read(@name).should == "rb_io_addstr data"
end
it "writes the String to the IO" do
@o.rb_io_addstr(@io, "rb_io_addstr data")
File.read(@name).should == "rb_io_addstr data"
end
it "returns the io" do
@o.rb_io_addstr(@io, "rb_io_addstr data").should eql(@io)
end
end
describe "rb_io_printf" do
it "calls #to_str to convert the format object to a String" do
obj = mock("rb_io_printf format")
obj.should_receive(:to_str).and_return("%s")
@o.rb_io_printf(@io, [obj, "rb_io_printf"])
File.read(@name).should == "rb_io_printf"
end
it "calls #to_s to convert the object to a String" do
obj = mock("rb_io_printf string")
obj.should_receive(:to_s).and_return("rb_io_printf")
@o.rb_io_printf(@io, ["%s", obj])
File.read(@name).should == "rb_io_printf"
end
it "writes the Strings to the IO" do
@o.rb_io_printf(@io, ["%s_%s_%s", "rb", "io", "printf"])
File.read(@name).should == "rb_io_printf"
end
end
describe "rb_io_print" do
it "calls #to_s to convert the object to a String" do
obj = mock("rb_io_print string")
obj.should_receive(:to_s).and_return("rb_io_print")
@o.rb_io_print(@io, [obj])
File.read(@name).should == "rb_io_print"
end
it "writes the Strings to the IO with no separator" do
@o.rb_io_print(@io, ["rb_", "io_", "print"])
File.read(@name).should == "rb_io_print"
end
end
describe "rb_io_puts" do
it "calls #to_s to convert the object to a String" do
obj = mock("rb_io_puts string")
obj.should_receive(:to_s).and_return("rb_io_puts")
@o.rb_io_puts(@io, [obj])
File.read(@name).should == "rb_io_puts\n"
end
it "writes the Strings to the IO separated by newlines" do
@o.rb_io_puts(@io, ["rb", "io", "write"])
File.read(@name).should == "rb\nio\nwrite\n"
end
end
describe "rb_io_write" do
it "calls #to_s to convert the object to a String" do
obj = mock("rb_io_write string")
obj.should_receive(:to_s).and_return("rb_io_write")
@o.rb_io_write(@io, obj)
File.read(@name).should == "rb_io_write"
end
it "writes the String to the IO" do
@o.rb_io_write(@io, "rb_io_write")
File.read(@name).should == "rb_io_write"
end
end
end
describe "C-API IO function" do
before :each do
@o = CApiIOSpecs.new
@name = tmp("c_api_io_specs")
touch @name
@io = new_io @name, fmode("r:utf-8")
end
after :each do
@io.close unless @io.closed?
rm_r @name
end
describe "rb_io_close" do
it "closes an IO object" do
@io.closed?.should be_false
@o.rb_io_close(@io)
@io.closed?.should be_true
end
end
describe "rb_io_check_io" do
it "returns the IO object if it is valid" do
@o.rb_io_check_io(@io).should == @io
end
it "returns nil for non IO objects" do
@o.rb_io_check_io({}).should be_nil
end
end
describe "rb_io_check_closed" do
it "does not raise an exception if the IO is not closed" do
# The MRI function is void, so we use should_not raise_error
lambda { @o.rb_io_check_closed(@io) }.should_not raise_error
end
it "raises an error if the IO is closed" do
@io.close
lambda { @o.rb_io_check_closed(@io) }.should raise_error(IOError)
end
end
# NOTE: unlike the name might suggest in MRI this function checks if an
# object is frozen, *not* if it's tainted.
describe "rb_io_taint_check" do
it "does not raise an exception if the IO is not frozen" do
lambda { @o.rb_io_taint_check(@io) }.should_not raise_error
end
it "raises an exception if the IO is frozen" do
@io.freeze
lambda { @o.rb_io_taint_check(@io) }.should raise_error(RuntimeError)
end
end
describe "GetOpenFile" do
it "allows access to the system fileno" do
@o.GetOpenFile_fd($stdin).should == 0
@o.GetOpenFile_fd($stdout).should == 1
@o.GetOpenFile_fd($stderr).should == 2
@o.GetOpenFile_fd(@io).should == @io.fileno
end
end
describe "rb_io_binmode" do
it "returns self" do
@o.rb_io_binmode(@io).should == @io
end
it "sets binmode" do
@o.rb_io_binmode(@io)
@io.binmode?.should be_true
end
end
end
describe "C-API IO function" do
before :each do
@o = CApiIOSpecs.new
@r_io, @w_io = IO.pipe
@name = tmp("c_api_io_specs")
touch @name
@rw_io = new_io @name, fmode("w+")
end
after :each do
@r_io.close unless @r_io.closed?
@w_io.close unless @w_io.closed?
@rw_io.close unless @rw_io.closed?
rm_r @name
end
describe "rb_io_check_readable" do
it "does not raise an exception if the IO is opened for reading" do
# The MRI function is void, so we use should_not raise_error
lambda { @o.rb_io_check_readable(@r_io) }.should_not raise_error
end
it "does not raise an exception if the IO is opened for read and write" do
lambda { @o.rb_io_check_readable(@rw_io) }.should_not raise_error
end
it "raises an IOError if the IO is not opened for reading" do
lambda { @o.rb_io_check_readable(@w_io) }.should raise_error(IOError)
end
end
describe "rb_io_check_writable" do
it "does not raise an exeption if the IO is opened for writing" do
# The MRI function is void, so we use should_not raise_error
lambda { @o.rb_io_check_writable(@w_io) }.should_not raise_error
end
it "does not raise an exception if the IO is opened for read and write" do
lambda { @o.rb_io_check_writable(@rw_io) }.should_not raise_error
end
it "raises an IOError if the IO is not opened for reading" do
lambda { @o.rb_io_check_writable(@r_io) }.should raise_error(IOError)
end
end
describe "rb_io_wait_writeable" do
it "returns false if there is no error condition" do
@o.rb_io_wait_writable(@w_io).should be_false
end
it "raises an IOError if the IO is closed" do
@w_io.close
lambda { @o.rb_io_wait_writable(@w_io) }.should raise_error(IOError)
end
end
describe "rb_thread_fd_writable" do
it "waits til an fd is ready for writing" do
@o.rb_thread_fd_writable(@w_io).should be_nil
end
end
describe "rb_io_wait_readable" do
it "returns false if there is no error condition" do
@o.rb_io_wait_readable(@r_io, false).should be_false
end
it "raises and IOError if passed a closed stream" do
@r_io.close
lambda { @o.rb_io_wait_readable(@r_io, false) }.should raise_error(IOError)
end
it "blocks until the io is readable and returns true" do
@o.instance_variable_set :@write_data, false
thr = Thread.new do
sleep 0.1 until @o.instance_variable_get(:@write_data)
@w_io.write "rb_io_wait_readable"
end
Thread.pass until thr.alive?
@o.rb_io_wait_readable(@r_io, true).should be_true
@o.instance_variable_get(:@read_data).should == "rb_io_wait_re"
thr.join
end
end
describe "rb_thread_wait_fd" do
it "waits til an fd is ready for reading" do
start = false
thr = Thread.new do
start = true
sleep 0.5
@w_io.write "rb_io_wait_readable"
end
Thread.pass until start
@o.rb_thread_wait_fd(@r_io).should be_nil
thr.join
end
end
end
describe "rb_fd_fix_cloexec" do
before :each do
@o = CApiIOSpecs.new
@name = tmp("c_api_rb_io_specs")
touch @name
@io = new_io @name, fmode("w:utf-8")
@io.close_on_exec = false
@io.sync = true
end
after :each do
@io.close unless @io.closed?
rm_r @name
end
it "sets close_on_exec on the IO" do
@o.rb_fd_fix_cloexec(@io)
@io.close_on_exec?.should be_true
end
end
describe "rb_cloexec_open" do
before :each do
@o = CApiIOSpecs.new
@name = tmp("c_api_rb_io_specs")
touch @name
@io = nil
end
after :each do
@io.close unless @io.nil? || @io.closed?
rm_r @name
end
it "sets close_on_exec on the newly-opened IO" do
@io = @o.rb_cloexec_open(@name, 0, 0)
@io.close_on_exec?.should be_true
end
end