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nghttp2/third-party/mruby/test/t/exception.rb

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+##
+# Exception ISO Test
+
+assert('Exception', '15.2.22') do
+  assert_equal Class, Exception.class
+end
+
+assert('Exception.exception', '15.2.22.4.1') do
+  e = Exception.exception('a')
+
+  assert_equal Exception, e.class
+end
+
+assert('Exception#exception', '15.2.22.5.1') do
+  e = Exception.new
+  re = RuntimeError.new
+  assert_equal e, e.exception
+  assert_equal e, e.exception(e)
+  assert_equal re, re.exception(re)
+  changed_re = re.exception('message has changed')
+  assert_not_equal re, changed_re
+  assert_equal 'message has changed', changed_re.message
+end
+
+assert('Exception#message', '15.2.22.5.2') do
+  e = Exception.exception('a')
+
+  assert_equal 'a', e.message
+end
+
+assert('Exception#to_s', '15.2.22.5.3') do
+  e = Exception.exception('a')
+
+  assert_equal 'a', e.to_s
+end
+
+assert('Exception.exception', '15.2.22.4.1') do
+  e = Exception.exception()
+  e.initialize('a')
+
+  assert_equal 'a', e.message
+end
+
+assert('NameError', '15.2.31') do
+  assert_raise(NameError) do
+    raise NameError.new
+  end
+
+  e = NameError.new "msg", "name"
+  assert_equal "msg", e.message
+  assert_equal "name", e.name
+end
+
+assert('ScriptError', '15.2.37') do
+  assert_raise(ScriptError) do
+    raise ScriptError.new
+  end
+end
+
+assert('SyntaxError', '15.2.38') do
+  assert_raise(SyntaxError) do
+    raise SyntaxError.new
+  end
+end
+
+# Not ISO specified
+
+assert('Exception 1') do
+r=begin
+    1+1
+  ensure
+    2+2
+  end
+  assert_equal 2, r
+end
+
+assert('Exception 2') do
+r=begin
+    1+1
+    begin
+      2+2
+    ensure
+      3+3
+    end
+  ensure
+    4+4
+  end
+  assert_equal 4, r
+end
+
+assert('Exception 3') do
+r=begin
+    1+1
+    begin
+      2+2
+    ensure
+      3+3
+    end
+  ensure
+    4+4
+    begin
+      5+5
+    ensure
+      6+6
+    end
+  end
+  assert_equal 4, r
+end
+
+assert('Exception 4') do
+  a = nil
+  1.times{|e|
+    begin
+    rescue => err
+    end
+    a = err.class
+  }
+  assert_equal NilClass, a
+end
+
+assert('Exception 5') do
+  $ans = []
+  def m
+    $!
+  end
+  def m2
+    1.times{
+      begin
+        return
+      ensure
+        $ans << m
+      end
+    }
+  end
+  m2
+  assert_equal [nil], $ans
+end
+
+assert('Exception 6') do
+  $i = 0
+  def m
+    iter{
+      begin
+        $i += 1
+        begin
+          $i += 2
+          break
+        ensure
+
+        end
+      ensure
+        $i += 4
+      end
+      $i = 0
+    }
+  end
+
+  def iter
+    yield
+  end
+  m
+  assert_equal 7, $i
+end
+
+assert('Exception 7') do
+  $i = 0
+  def m
+    begin
+      $i += 1
+      begin
+        $i += 2
+        return
+      ensure
+        $i += 3
+      end
+    ensure
+      $i += 4
+    end
+    p :end
+  end
+  m
+  assert_equal 10, $i
+end
+
+assert('Exception 8') do
+r=begin
+    1
+  rescue
+    2
+  else
+    3
+  end
+  assert_equal 3, r
+end
+
+assert('Exception 9') do
+r=begin
+    1+1
+  rescue
+    2+2
+  else
+    3+3
+  ensure
+    4+4
+  end
+  assert_equal 6, r
+end
+
+assert('Exception 10') do
+r=begin
+    1+1
+    begin
+      2+2
+    rescue
+      3+3
+    else
+      4+4
+    end
+  rescue
+    5+5
+  else
+    6+6
+  ensure
+    7+7
+  end
+  assert_equal 12, r
+end
+
+assert('Exception 11') do
+  a = :ok
+  begin
+    begin
+      raise Exception
+    rescue
+      a = :ng
+    end
+  rescue Exception
+  end
+  assert_equal :ok, a
+end
+
+assert('Exception 12') do
+  a = :ok
+  begin
+    raise Exception rescue a = :ng
+  rescue Exception
+  end
+  assert_equal :ok, a
+end
+
+assert('Exception 13') do
+  a = :ng
+  begin
+    raise StandardError
+  rescue TypeError, ArgumentError
+    a = :ng
+  rescue
+    a = :ok
+  else
+    a = :ng
+  end
+  assert_equal :ok, a
+end
+
+assert('Exception 14') do
+  def (o = Object.new).exception_test14; UnknownConstant end
+  a = :ng
+  begin
+    o.__send__(:exception_test14)
+  rescue
+    a = :ok
+  end
+
+  assert_equal :ok, a
+end
+
+assert('Exception 15') do
+  a = begin
+        :ok
+      rescue
+        :ko
+      end
+  assert_equal :ok, a
+end
+
+assert('Exception 16') do
+  begin
+    raise "foo"
+    false
+  rescue => e
+    assert_equal "foo", e.message
+  end
+end
+
+assert('Exception 17') do
+r=begin
+    raise "a"  # RuntimeError
+  rescue ArgumentError
+    1
+  rescue StandardError
+    2
+  else
+    3
+  ensure
+    4
+  end
+  assert_equal 2, r
+end
+
+assert('Exception 18') do
+r=begin
+    0
+  rescue ArgumentError
+    1
+  rescue StandardError
+    2
+  else
+    3
+  ensure
+    4
+  end
+  assert_equal 3, r
+end
+
+assert('Exception 19') do
+  class Class4Exception19
+    def a
+      r = @e = false
+      begin
+        b
+      rescue TypeError
+        r = self.z
+      end
+      [ r, @e ]
+    end
+
+    def b
+      begin
+        1 * "b"
+      ensure
+        @e = self.zz
+      end
+    end
+
+    def zz
+      true
+    end
+    def z
+      true
+    end
+  end
+  assert_equal [true, true], Class4Exception19.new.a
+end
+
+assert('Exception#inspect') do
+  assert_equal "Exception", Exception.new.inspect
+  assert_equal "Exception", Exception.new("").inspect
+  assert_equal "error! (Exception)", Exception.new("error!").inspect
+end
+
+assert('Exception#backtrace') do
+  assert_nothing_raised do
+    begin
+      raise "get backtrace"
+    rescue => e
+      e.backtrace
+    end
+  end
+end
+
+assert('Raise in ensure') do
+  assert_raise(ArgumentError) do
+    begin
+      raise "" # RuntimeError
+    ensure
+      raise ArgumentError
+    end
+  end
+end
+
+def backtrace_available?
+  begin
+    raise "XXX"
+  rescue => exception
+    not exception.backtrace.empty?
+  end
+end
+
+assert('GC in rescue') do
+  skip "backtrace isn't available" unless backtrace_available?
+
+  line = nil
+  begin
+    [1].each do
+      [2].each do
+        [3].each do
+          line = __LINE__; raise "XXX"
+        end
+      end
+    end
+  rescue => exception
+    GC.start
+    assert_equal("#{__FILE__}:#{line}",
+                 exception.backtrace.first)
+  end
+end
+
+assert('Method call in rescue') do
+  skip "backtrace isn't available" unless backtrace_available?
+
+  line = nil
+  begin
+    [1].each do
+      [2].each do
+        line = __LINE__; raise "XXX"
+      end
+    end
+  rescue => exception
+    [3].each do
+    end
+    assert_equal("#{__FILE__}:#{line}",
+                 exception.backtrace.first)
+  end
+end