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-rw-r--r--spec/ruby/core/signal/fixtures/trap_all.rb15
-rw-r--r--spec/ruby/core/signal/list_spec.rb68
-rw-r--r--spec/ruby/core/signal/signame_spec.rb34
-rw-r--r--spec/ruby/core/signal/trap_spec.rb320
4 files changed, 437 insertions, 0 deletions
diff --git a/spec/ruby/core/signal/fixtures/trap_all.rb b/spec/ruby/core/signal/fixtures/trap_all.rb
new file mode 100644
index 0000000000..afa00b498d
--- /dev/null
+++ b/spec/ruby/core/signal/fixtures/trap_all.rb
@@ -0,0 +1,15 @@
+cannot_be_trapped = %w[KILL STOP] # See man 2 signal
+
+(Signal.list.keys - cannot_be_trapped).each do |signal|
+ begin
+ Signal.trap(signal, -> {})
+ rescue ArgumentError => e
+ unless /can't trap reserved signal|Signal already used by VM or OS/ =~ e.message
+ raise e
+ end
+ else
+ Signal.trap(signal, "DEFAULT")
+ end
+end
+
+puts "OK"
diff --git a/spec/ruby/core/signal/list_spec.rb b/spec/ruby/core/signal/list_spec.rb
new file mode 100644
index 0000000000..56ad6828fe
--- /dev/null
+++ b/spec/ruby/core/signal/list_spec.rb
@@ -0,0 +1,68 @@
+require_relative '../../spec_helper'
+
+describe "Signal.list" do
+ RUBY_SIGNALS = %w{
+ EXIT
+ HUP
+ INT
+ QUIT
+ ILL
+ TRAP
+ IOT
+ ABRT
+ EMT
+ FPE
+ KILL
+ BUS
+ SEGV
+ SYS
+ PIPE
+ ALRM
+ TERM
+ URG
+ STOP
+ TSTP
+ CONT
+ CHLD
+ CLD
+ TTIN
+ TTOU
+ IO
+ XCPU
+ XFSZ
+ VTALRM
+ PROF
+ WINCH
+ USR1
+ USR2
+ LOST
+ MSG
+ PWR
+ POLL
+ DANGER
+ MIGRATE
+ PRE
+ GRANT
+ RETRACT
+ SOUND
+ INFO
+ }
+
+ it "doesn't contain other signals than the known list" do
+ (Signal.list.keys - RUBY_SIGNALS).should == []
+ end
+
+ if Signal.list["CHLD"]
+ it "redefines CLD with CHLD if defined" do
+ Signal.list["CLD"].should == Signal.list["CHLD"]
+ end
+ end
+
+ it "includes the EXIT key with a value of zero" do
+ Signal.list["EXIT"].should == 0
+ end
+
+ it "includes the KILL key with a value of nine" do
+ Signal.list["KILL"].should == 9
+ end
+end
diff --git a/spec/ruby/core/signal/signame_spec.rb b/spec/ruby/core/signal/signame_spec.rb
new file mode 100644
index 0000000000..82f040a6f9
--- /dev/null
+++ b/spec/ruby/core/signal/signame_spec.rb
@@ -0,0 +1,34 @@
+require_relative '../../spec_helper'
+
+describe "Signal.signame" do
+ it "takes a signal name with a well known signal number" do
+ Signal.signame(0).should == "EXIT"
+ end
+
+ it "returns nil if the argument is an invalid signal number" do
+ Signal.signame(-1).should == nil
+ end
+
+ it "calls #to_int on an object to convert to an Integer" do
+ obj = mock('signal')
+ obj.should_receive(:to_int).and_return(0)
+ Signal.signame(obj).should == "EXIT"
+ end
+
+ it "raises a TypeError when the passed argument can't be coerced to Integer" do
+ -> { Signal.signame("hello") }.should.raise(TypeError)
+ end
+
+ it "raises a TypeError when the passed argument responds to #to_int but does not return an Integer" do
+ obj = mock('signal')
+ obj.should_receive(:to_int).and_return('not an int')
+ -> { Signal.signame(obj) }.should.raise(TypeError)
+ end
+
+ platform_is_not :windows do
+ it "the original should take precedence over alias when looked up by number" do
+ Signal.signame(Signal.list["ABRT"]).should == "ABRT"
+ Signal.signame(Signal.list["CHLD"]).should == "CHLD"
+ end
+ end
+end
diff --git a/spec/ruby/core/signal/trap_spec.rb b/spec/ruby/core/signal/trap_spec.rb
new file mode 100644
index 0000000000..5d3105fee8
--- /dev/null
+++ b/spec/ruby/core/signal/trap_spec.rb
@@ -0,0 +1,320 @@
+require_relative '../../spec_helper'
+
+describe "Signal.trap" do
+ platform_is_not :windows do
+ before :each do
+ ScratchPad.clear
+ @proc = -> {}
+ @saved_trap = Signal.trap(:HUP, @proc)
+ @hup_number = Signal.list["HUP"]
+ end
+
+ after :each do
+ Signal.trap(:HUP, @saved_trap) if @saved_trap
+ end
+
+ it "returns the previous handler" do
+ Signal.trap(:HUP, @saved_trap).should.equal?(@proc)
+ end
+
+ it "accepts a block" do
+ done = false
+
+ Signal.trap(:HUP) do |signo|
+ signo.should == @hup_number
+ ScratchPad.record :block_trap
+ done = true
+ end
+
+ Process.kill :HUP, Process.pid
+ Thread.pass until done
+
+ ScratchPad.recorded.should == :block_trap
+ end
+
+ it "accepts a proc" do
+ done = false
+
+ handler = -> signo {
+ signo.should == @hup_number
+ ScratchPad.record :proc_trap
+ done = true
+ }
+
+ Signal.trap(:HUP, handler)
+
+ Process.kill :HUP, Process.pid
+ Thread.pass until done
+
+ ScratchPad.recorded.should == :proc_trap
+ end
+
+ it "accepts a method" do
+ done = false
+
+ handler_class = Class.new
+ hup_number = @hup_number
+
+ handler_class.define_method :handler_method do |signo|
+ signo.should == hup_number
+ ScratchPad.record :method_trap
+ done = true
+ end
+
+ handler_method = handler_class.new.method(:handler_method)
+
+ Signal.trap(:HUP, handler_method)
+
+ Process.kill :HUP, Process.pid
+ Thread.pass until done
+
+ ScratchPad.recorded.should == :method_trap
+ end
+
+ it "accepts anything you can call" do
+ done = false
+
+ callable = Object.new
+ hup_number = @hup_number
+
+ callable.singleton_class.define_method :call do |signo|
+ signo.should == hup_number
+ ScratchPad.record :callable_trap
+ done = true
+ end
+
+ Signal.trap(:HUP, callable)
+
+ Process.kill :HUP, Process.pid
+ Thread.pass until done
+
+ ScratchPad.recorded.should == :callable_trap
+ end
+
+ it "raises an exception for a non-callable at the point of use" do
+ not_callable = Object.new
+ Signal.trap(:HUP, not_callable)
+ -> {
+ Process.kill :HUP, Process.pid
+ loop { Thread.pass }
+ }.should.raise(NoMethodError)
+ end
+
+ it "accepts a non-callable that becomes callable when used" do
+ done = false
+
+ late_callable = Object.new
+ hup_number = @hup_number
+
+ Signal.trap(:HUP, late_callable)
+
+ late_callable.singleton_class.define_method :call do |signo|
+ signo.should == hup_number
+ ScratchPad.record :late_callable_trap
+ done = true
+ end
+
+ Process.kill :HUP, Process.pid
+ Thread.pass until done
+
+ ScratchPad.recorded.should == :late_callable_trap
+ end
+
+ it "is possible to create a new Thread when the handler runs" do
+ done = false
+
+ Signal.trap(:HUP) do
+ thr = Thread.new { }
+ thr.join
+ ScratchPad.record(thr.group == Thread.main.group)
+
+ done = true
+ end
+
+ Process.kill :HUP, Process.pid
+ Thread.pass until done
+
+ ScratchPad.recorded.should == true
+ end
+
+ it "registers an handler doing nothing with :IGNORE" do
+ Signal.trap :HUP, :IGNORE
+ Signal.trap(:HUP, @saved_trap).should == "IGNORE"
+ end
+
+ it "can register a new handler after :IGNORE" do
+ Signal.trap :HUP, :IGNORE
+
+ done = false
+ Signal.trap(:HUP) do
+ ScratchPad.record :block_trap
+ done = true
+ end
+
+ Process.kill(:HUP, Process.pid).should == 1
+ Thread.pass until done
+ ScratchPad.recorded.should == :block_trap
+ end
+
+ it "ignores the signal when passed nil" do
+ Signal.trap :HUP, nil
+ Signal.trap(:HUP, @saved_trap).should == nil
+ end
+
+ it "accepts :DEFAULT in place of a proc" do
+ Signal.trap :HUP, :DEFAULT
+ Signal.trap(:HUP, @saved_trap).should == "DEFAULT"
+ end
+
+ it "accepts :SIG_DFL in place of a proc" do
+ Signal.trap :HUP, :SIG_DFL
+ Signal.trap(:HUP, @saved_trap).should == "DEFAULT"
+ end
+
+ it "accepts :SIG_IGN in place of a proc" do
+ Signal.trap :HUP, :SIG_IGN
+ Signal.trap(:HUP, @saved_trap).should == "IGNORE"
+ end
+
+ it "accepts :IGNORE in place of a proc" do
+ Signal.trap :HUP, :IGNORE
+ Signal.trap(:HUP, @saved_trap).should == "IGNORE"
+ end
+
+ it "accepts 'SIG_DFL' in place of a proc" do
+ Signal.trap :HUP, "SIG_DFL"
+ Signal.trap(:HUP, @saved_trap).should == "DEFAULT"
+ end
+
+ it "accepts 'DEFAULT' in place of a proc" do
+ Signal.trap :HUP, "DEFAULT"
+ Signal.trap(:HUP, @saved_trap).should == "DEFAULT"
+ end
+
+ it "accepts 'SIG_IGN' in place of a proc" do
+ Signal.trap :HUP, "SIG_IGN"
+ Signal.trap(:HUP, @saved_trap).should == "IGNORE"
+ end
+
+ it "accepts 'IGNORE' in place of a proc" do
+ Signal.trap :HUP, "IGNORE"
+ Signal.trap(:HUP, @saved_trap).should == "IGNORE"
+ end
+
+ it "accepts long names as Strings" do
+ Signal.trap "SIGHUP", @proc
+ Signal.trap("SIGHUP", @saved_trap).should.equal?(@proc)
+ end
+
+ it "accepts short names as Strings" do
+ Signal.trap "HUP", @proc
+ Signal.trap("HUP", @saved_trap).should.equal?(@proc)
+ end
+
+ it "accepts long names as Symbols" do
+ Signal.trap :SIGHUP, @proc
+ Signal.trap(:SIGHUP, @saved_trap).should.equal?(@proc)
+ end
+
+ it "accepts short names as Symbols" do
+ Signal.trap :HUP, @proc
+ Signal.trap(:HUP, @saved_trap).should.equal?(@proc)
+ end
+
+ it "calls #to_str on an object to convert to a String" do
+ obj = mock("signal")
+ obj.should_receive(:to_str).exactly(2).times.and_return("HUP")
+ Signal.trap obj, @proc
+ Signal.trap(obj, @saved_trap).should.equal?(@proc)
+ end
+
+ it "accepts Integer values" do
+ hup = Signal.list["HUP"]
+ Signal.trap hup, @proc
+ Signal.trap(hup, @saved_trap).should.equal?(@proc)
+ end
+
+ it "does not call #to_int on an object to convert to an Integer" do
+ obj = mock("signal")
+ obj.should_not_receive(:to_int)
+ -> { Signal.trap obj, @proc }.should.raise(ArgumentError, /bad signal type/)
+ end
+
+ it "raises ArgumentError when passed unknown signal" do
+ -> { Signal.trap(300) { } }.should.raise(ArgumentError, "invalid signal number (300)")
+ -> { Signal.trap("USR10") { } }.should.raise(ArgumentError, /\Aunsupported signal [`']SIGUSR10'\z/)
+ -> { Signal.trap("SIGUSR10") { } }.should.raise(ArgumentError, /\Aunsupported signal [`']SIGUSR10'\z/)
+ end
+
+ it "raises ArgumentError when passed signal is not Integer, String or Symbol" do
+ -> { Signal.trap(nil) { } }.should.raise(ArgumentError, "bad signal type NilClass")
+ -> { Signal.trap(100.0) { } }.should.raise(ArgumentError, "bad signal type Float")
+ -> { Signal.trap(Rational(100)) { } }.should.raise(ArgumentError, "bad signal type Rational")
+ end
+
+ # See man 2 signal
+ %w[KILL STOP].each do |signal|
+ it "raises ArgumentError or Errno::EINVAL for SIG#{signal}" do
+ -> {
+ Signal.trap(signal, -> {})
+ }.should.raise(StandardError) { |e|
+ [ArgumentError, Errno::EINVAL].should.include?(e.class)
+ e.message.should =~ /Invalid argument|Signal already used by VM or OS/
+ }
+ end
+ end
+
+ %w[SEGV BUS ILL FPE VTALRM].each do |signal|
+ it "raises ArgumentError for SIG#{signal} which is reserved by Ruby" do
+ -> {
+ Signal.trap(signal, -> {})
+ }.should.raise(ArgumentError, "can't trap reserved signal: SIG#{signal}")
+ end
+ end
+
+ it "allows to register a handler for all known signals, except reserved signals for which it raises ArgumentError" do
+ out = ruby_exe(fixture(__FILE__, "trap_all.rb"), args: "2>&1")
+ out.should == "OK\n"
+ $?.exitstatus.should == 0
+ end
+
+ it "returns 'DEFAULT' for the initial SIGINT handler" do
+ ruby_exe("print Signal.trap(:INT) { abort }").should == 'DEFAULT'
+ end
+
+ it "returns SYSTEM_DEFAULT if passed DEFAULT and no handler was ever set" do
+ Signal.trap("PROF", "DEFAULT").should == "SYSTEM_DEFAULT"
+ end
+
+ it "accepts 'SYSTEM_DEFAULT' and uses the OS handler for SIGPIPE" do
+ code = <<-RUBY
+ p Signal.trap('PIPE', 'SYSTEM_DEFAULT')
+ r, w = IO.pipe
+ r.close
+ loop { w.write("a"*1024) }
+ RUBY
+ out = ruby_exe(code, exit_status: :SIGPIPE)
+ status = $?
+ out.should == "nil\n"
+ status.should.signaled?
+ end
+ end
+
+ describe "the special EXIT signal code" do
+ it "accepts the EXIT code" do
+ code = "Signal.trap(:EXIT, proc { print 1 })"
+ ruby_exe(code).should == "1"
+ end
+
+ it "runs the proc before at_exit handlers" do
+ code = "at_exit {print 1}; Signal.trap(:EXIT, proc {print 2}); at_exit {print 3}"
+ ruby_exe(code).should == "231"
+ end
+
+ it "can unset the handler" do
+ code = "Signal.trap(:EXIT, proc { print 1 }); Signal.trap(:EXIT, 'DEFAULT')"
+ ruby_exe(code).should == ""
+ end
+ end
+
+end
generated by cgit v1.2.3 (git 2.25.1) at 2026-06-06 10:42:32 +0000