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require File.dirname(File.join(__rhoGetCurrentDir(), __FILE__)) + '/../../spec_helper'
require File.dirname(File.join(__rhoGetCurrentDir(), __FILE__)) + '/fixtures/classes'
require File.dirname(File.join(__rhoGetCurrentDir(), __FILE__)) + '/shared/write'
describe "IO#write on a file" do
before :each do
@filename = tmp("IO_syswrite_file") + $$.to_s
File.open(@filename, "w") do |file|
file.write("012345678901234567890123456789")
end
@file = File.open(@filename, "r+")
@readonly_file = File.open(@filename)
end
after :each do
@file.close
@readonly_file.close
File.delete(@filename)
end
# TODO: impl detail? discuss this with matz. This spec is useless. - rdavis
it "writes all of the string's bytes but buffers them" do
written = @file.write("abcde")
written.should == 5
File.open(@filename) do |file|
file.read.should == "012345678901234567890123456789"
@file.fsync
file.rewind
file.read.should == "abcde5678901234567890123456789"
end
end
it "does not check if the file is writable if writing zero bytes" do
lambda { @readonly_file.write("") }.should_not raise_error
end
it "returns a length of 0 when writing a blank string" do
@file.write('').should == 0
end
end
describe "IO#write" do
it_behaves_like :io_write, :write
end
Version data entries
83 entries across 83 versions & 1 rubygems