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106 lines
2.3 KiB
Ruby
106 lines
2.3 KiB
Ruby
require_relative '../../spec_helper'
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describe "File#flock" do
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before :each do
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ScratchPad.record []
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@name = tmp("flock_test")
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touch(@name)
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@file = File.open @name, "w+"
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end
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after :each do
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@file.flock File::LOCK_UN
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@file.close
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rm_r @name
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end
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it "exclusively locks a file" do
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@file.flock(File::LOCK_EX).should == 0
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@file.flock(File::LOCK_UN).should == 0
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end
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it "non-exclusively locks a file" do
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@file.flock(File::LOCK_SH).should == 0
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@file.flock(File::LOCK_UN).should == 0
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end
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it "returns false if trying to lock an exclusively locked file" do
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@file.flock File::LOCK_EX
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ruby_exe(<<-END_OF_CODE, escape: true).should == "false"
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File.open('#{@name}', "w") do |f2|
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print f2.flock(File::LOCK_EX | File::LOCK_NB).to_s
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end
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END_OF_CODE
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end
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it "blocks if trying to lock an exclusively locked file" do
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@file.flock File::LOCK_EX
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out = ruby_exe(<<-END_OF_CODE, escape: true)
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running = false
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t = Thread.new do
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File.open('#{@name}', "w") do |f2|
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puts "before"
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running = true
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f2.flock(File::LOCK_EX)
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puts "after"
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end
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end
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Thread.pass until running
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Thread.pass while t.status and t.status != "sleep"
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sleep 0.1
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t.kill
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t.join
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END_OF_CODE
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out.should == "before\n"
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end
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it "returns 0 if trying to lock a non-exclusively locked file" do
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@file.flock File::LOCK_SH
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File.open(@name, "r") do |f2|
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f2.flock(File::LOCK_SH | File::LOCK_NB).should == 0
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f2.flock(File::LOCK_UN).should == 0
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end
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end
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end
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platform_is :solaris do
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describe "File#flock on Solaris" do
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before :each do
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@name = tmp("flock_test")
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touch(@name)
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@read_file = File.open @name, "r"
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@write_file = File.open @name, "w"
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end
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after :each do
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@read_file.flock File::LOCK_UN
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@read_file.close
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@write_file.flock File::LOCK_UN
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@write_file.close
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rm_r @name
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end
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it "fails with EBADF acquiring exclusive lock on read-only File" do
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-> do
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@read_file.flock File::LOCK_EX
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end.should raise_error(Errno::EBADF)
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end
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it "fails with EBADF acquiring shared lock on read-only File" do
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-> do
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@write_file.flock File::LOCK_SH
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end.should raise_error(Errno::EBADF)
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end
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end
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end
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