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require_relative '../../spec_helper'
describe "Thread.each_caller_location" do
ruby_version_is "3.2" do
it "iterates through the current execution stack and matches caller_locations content and type" do
ScratchPad.record []
Thread.each_caller_location { |l| ScratchPad << l; }
ScratchPad.recorded.map(&:to_s).should == caller_locations.map(&:to_s)
ScratchPad.recorded[0].should be_kind_of(Thread::Backtrace::Location)
end
it "returns subset of 'Thread.to_enum(:each_caller_location)' locations" do
ar = []
ecl = Thread.each_caller_location { |x| ar << x }
(ar.map(&:to_s) - Thread.to_enum(:each_caller_location).to_a.map(&:to_s)).should.empty?
end
it "stops the backtrace iteration if 'break' occurs" do
i = 0
ar = []
ecl = Thread.each_caller_location do |x|
ar << x
i += 1
break x if i == 2
end
ar.map(&:to_s).should == caller_locations(1, 2).map(&:to_s)
ecl.should be_kind_of(Thread::Backtrace::Location)
end
it "returns nil" do
Thread.each_caller_location {}.should == nil
end
it "raises LocalJumpError when called without a block" do
-> {
Thread.each_caller_location
}.should raise_error(LocalJumpError, "no block given")
end
it "doesn't accept positional and keyword arguments" do
-> {
Thread.each_caller_location(12, foo: 10) {}
}.should raise_error(ArgumentError, "wrong number of arguments (given 2, expected 0)")
end
end
end
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