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