require 'test/unit' require 'tempfile' require_relative 'envutil' class TestException < Test::Unit::TestCase def test_exception_rescued begin raise "this must be handled" assert(false) rescue assert(true) end end def test_exception_retry bad = true begin raise "this must be handled no.2" rescue if bad bad = false retry assert(false) end end assert(true) end def test_exception_in_rescue string = "this must be handled no.3" e = assert_raise(RuntimeError) do begin raise "exception in rescue clause" rescue raise string end assert(false) end assert_equal(string, e.message) end def test_exception_in_ensure string = "exception in ensure clause" e = assert_raise(RuntimeError) do begin raise "this must be handled no.4" ensure assert_instance_of(RuntimeError, $!) assert_equal("this must be handled no.4", $!.message) raise "exception in ensure clause" end assert(false) end assert_equal(string, e.message) end def test_exception_ensure bad = true begin begin raise "this must be handled no.5" ensure bad = false end rescue end assert(!bad) end def test_exception_ensure_2 # just duplication? bad = true begin begin raise "this must be handled no.6" ensure bad = false end rescue end assert(!bad) end def test_break_ensure bad = true while true begin break ensure bad = false end end assert(!bad) end def test_catch_throw assert(catch(:foo) { loop do loop do throw :foo, true break end break assert(false) # should no reach here end false }) end def test_else_no_exception begin assert(true) rescue assert(false) else assert(true) end end def test_else_raised begin assert(true) raise assert(false) rescue assert(true) else assert(false) end end def test_else_nested_no_exception begin assert(true) begin assert(true) rescue assert(false) else assert(true) end assert(true) rescue assert(false) else assert(true) end end def test_else_nested_rescued begin assert(true) begin assert(true) raise assert(false) rescue assert(true) else assert(false) end assert(true) rescue assert(false) else assert(true) end end def test_else_nested_unrescued begin assert(true) begin assert(true) rescue assert(false) else assert(true) end assert(true) raise assert(false) rescue assert(true) else assert(false) end end def test_else_nested_rescued_reraise begin assert(true) begin assert(true) raise assert(false) rescue assert(true) else assert(false) end assert(true) raise assert(false) rescue assert(true) else assert(false) end end def test_raise_with_wrong_number_of_arguments assert_raise(TypeError) { raise nil } assert_raise(TypeError) { raise 1, 1 } assert_raise(ArgumentError) { raise 1, 1, 1, 1 } end def test_errat assert_in_out_err([], "p $@", %w(nil), []) assert_in_out_err([], "$@ = 1", [], /\$! not set \(ArgumentError\)$/) assert_in_out_err([], <<-INPUT, [], /backtrace must be Array of String \(TypeError\)$/) begin raise rescue $@ = 1 end INPUT assert_in_out_err([], <<-INPUT, [], /^foo: unhandled exception$/) begin raise rescue $@ = 'foo' raise end INPUT assert_in_out_err([], <<-INPUT, [], /^foo: unhandled exception\s+from bar\s+from baz$/) begin raise rescue $@ = %w(foo bar baz) raise end INPUT end def test_safe4 cmd = proc{raise SystemExit} safe0_p = proc{|*args| args} test_proc = proc { $SAFE = 4 begin cmd.call rescue SystemExit => e safe0_p["SystemExit: #{e.inspect}"] raise e rescue Exception => e safe0_p["Exception (NOT SystemExit): #{e.inspect}"] raise e end } assert_raise(SystemExit, '[ruby-dev:38760]') {test_proc.call} end def test_thread_signal_location _, stderr, _ = EnvUtil.invoke_ruby("-d", <<-RUBY, false, true) Thread.start do begin Process.kill(:INT, $$) ensure raise "in ensure" end end.join RUBY assert_not_match(/:0/, stderr, "[ruby-dev:39116]") end def test_errinfo begin raise "foo" assert(false) rescue => e assert_equal(e, $!) 1.times { assert_equal(e, $!) } end assert_equal(nil, $!) end def test_inspect assert_equal("#", Exception.new.inspect) e = Class.new(Exception) e.class_eval do def to_s; ""; end end assert_equal(e.inspect, e.new.inspect) end def test_set_backtrace e = Exception.new e.set_backtrace("foo") assert_equal(["foo"], e.backtrace) e.set_backtrace(%w(foo bar baz)) assert_equal(%w(foo bar baz), e.backtrace) assert_raise(TypeError) { e.set_backtrace(1) } assert_raise(TypeError) { e.set_backtrace([1]) } end def test_exit_success_p begin exit rescue SystemExit => e end assert_send([e, :success?], "success by default") begin exit(true) rescue SystemExit => e end assert_send([e, :success?], "true means success") begin exit(false) rescue SystemExit => e end assert_not_send([e, :success?], "false means failure") begin abort rescue SystemExit => e end assert_not_send([e, :success?], "abort means failure") end def test_nomethoderror bug3237 = '[ruby-core:29948]' str = "\u2600" id = :"\u2604" e = assert_raise(NoMethodError) {str.__send__(id)} assert_equal("undefined method `#{id}' for #{str.inspect}:String", e.message, bug3237) end def test_errno assert_equal(Encoding.find("locale"), Errno::EINVAL.new.message.encoding) end def test_too_many_args_in_eval bug5720 = '[ruby-core:41520]' arg_string = (0...140000).to_a.join(", ") assert_raise(SystemStackError, bug5720) {eval "raise(#{arg_string})"} end def test_systemexit_new e0 = SystemExit.new assert_equal(0, e0.status) assert_equal("SystemExit", e0.message) ei = SystemExit.new(3) assert_equal(3, ei.status) assert_equal("SystemExit", ei.message) es = SystemExit.new("msg") assert_equal(0, es.status) assert_equal("msg", es.message) eis = SystemExit.new(7, "msg") assert_equal(7, eis.status) assert_equal("msg", eis.message) bug5728 = '[ruby-dev:44951]' et = SystemExit.new(true) assert_equal(true, et.success?, bug5728) assert_equal("SystemExit", et.message, bug5728) ef = SystemExit.new(false) assert_equal(false, ef.success?, bug5728) assert_equal("SystemExit", ef.message, bug5728) ets = SystemExit.new(true, "msg") assert_equal(true, ets.success?, bug5728) assert_equal("msg", ets.message, bug5728) efs = SystemExit.new(false, "msg") assert_equal(false, efs.success?, bug5728) assert_equal("msg", efs.message, bug5728) end def test_exception_in_name_error_to_str bug5575 = '[ruby-core:41612]' t = nil Tempfile.open(["test_exception_in_name_error_to_str", ".rb"]) do |f| t = f t.puts <<-EOC begin BasicObject.new.inspect rescue $!.inspect end EOC end assert_nothing_raised(NameError, bug5575) do load(t.path) end ensure t.close(true) if t end def test_equal bug5865 = '[ruby-core:41979]' assert_equal(RuntimeError.new("a"), RuntimeError.new("a"), bug5865) assert_not_equal(RuntimeError.new("a"), StandardError.new("a"), bug5865) end def test_exception_in_exception_equal bug5865 = '[ruby-core:41979]' t = nil Tempfile.open(["test_exception_in_exception_equal", ".rb"]) do |f| t = f t.puts <<-EOC o = Object.new def o.exception(arg) end _ = RuntimeError.new("a") == o EOC end assert_nothing_raised(ArgumentError, bug5865) do load(t.path) end ensure t.close(true) if t end end