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			622 lines
		
	
	
	
		
			18 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			622 lines
		
	
	
	
		
			18 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| # frozen_string_literal: false
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| require 'test/unit'
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| require 'tempfile'
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| require 'irb'
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| require 'rubygems' if defined?(Gem)
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| 
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| module TestIRB
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|   class TestContext < Test::Unit::TestCase
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|     class TestInputMethod < ::IRB::InputMethod
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|       attr_reader :list, :line_no
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| 
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|       def initialize(list = [])
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|         super("test")
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|         @line_no = 0
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|         @list = list
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|       end
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| 
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|       def gets
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|         @list[@line_no]&.tap {@line_no += 1}
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|       end
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| 
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|       def eof?
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|         @line_no >= @list.size
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|       end
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| 
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|       def encoding
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|         Encoding.default_external
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|       end
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| 
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|       def reset
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|         @line_no = 0
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|       end
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| 
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|       def winsize
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|         [10, 20]
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|       end
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|     end
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| 
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|     def setup
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|       IRB.init_config(nil)
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|       IRB.conf[:USE_SINGLELINE] = false
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|       IRB.conf[:VERBOSE] = false
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|       workspace = IRB::WorkSpace.new(Object.new)
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|       @context = IRB::Context.new(nil, workspace, TestInputMethod.new)
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| 
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|       @get_screen_size = Reline.method(:get_screen_size)
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|       Reline.instance_eval { undef :get_screen_size }
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|       def Reline.get_screen_size
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|         [36, 80]
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|       end
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|     end
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| 
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|     def teardown
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|       Reline.instance_eval { undef :get_screen_size }
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|       Reline.define_singleton_method(:get_screen_size, @get_screen_size)
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|     end
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| 
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|     def test_last_value
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|       assert_nil(@context.last_value)
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|       assert_nil(@context.evaluate('_', 1))
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|       obj = Object.new
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|       @context.set_last_value(obj)
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|       assert_same(obj, @context.last_value)
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|       assert_same(obj, @context.evaluate('_', 1))
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|     end
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| 
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|     def test_evaluate_with_exception
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|       assert_nil(@context.evaluate("$!", 1))
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|       e = assert_raise_with_message(RuntimeError, 'foo') {
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|         @context.evaluate("raise 'foo'", 1)
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|       }
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|       assert_equal('foo', e.message)
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|       assert_same(e, @context.evaluate('$!', 1, exception: e))
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|       e = assert_raise(SyntaxError) {
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|         @context.evaluate("1,2,3", 1, exception: e)
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|       }
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|       assert_match(/\A\(irb\):1:/, e.message)
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|       assert_not_match(/rescue _\.class/, e.message)
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|     end
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| 
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|     def test_evaluate_with_encoding_error_without_lineno
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|       pend if RUBY_ENGINE == 'truffleruby'
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|       assert_raise_with_message(EncodingError, /invalid symbol/) {
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|         @context.evaluate(%q[{"\xAE": 1}], 1)
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|         # The backtrace of this invalid encoding hash doesn't contain lineno.
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|       }
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|     end
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| 
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|     def test_evaluate_with_onigmo_warning
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|       pend if RUBY_ENGINE == 'truffleruby'
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|       assert_warning("(irb):1: warning: character class has duplicated range: /[aa]/\n") do
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|         @context.evaluate('/[aa]/', 1)
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|       end
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|     end
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| 
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|     def test_eval_input
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|       pend if RUBY_ENGINE == 'truffleruby'
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|       verbose, $VERBOSE = $VERBOSE, nil
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|       input = TestInputMethod.new([
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|         "raise 'Foo'\n",
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|         "_\n",
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|         "0\n",
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|         "_\n",
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|       ])
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|       irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_pattern_list([:*, /\(irb\):1:in `<main>': Foo \(RuntimeError\)\n/,
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|                            :*, /#<RuntimeError: Foo>\n/,
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|                            :*, /0$/,
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|                            :*, /0$/,
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|                            /\s*/], out)
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|     ensure
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|       $VERBOSE = verbose
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|     end
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| 
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|     def test_eval_input_raise2x
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|       pend if RUBY_ENGINE == 'truffleruby'
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|       input = TestInputMethod.new([
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|         "raise 'Foo'\n",
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|         "raise 'Bar'\n",
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|         "_\n",
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|       ])
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|       irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_pattern_list([
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|           :*, /\(irb\):1:in `<main>': Foo \(RuntimeError\)\n/,
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|           :*, /\(irb\):2:in `<main>': Bar \(RuntimeError\)\n/,
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|           :*, /#<RuntimeError: Bar>\n/,
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|         ], out)
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|     end
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| 
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|     def test_eval_object_without_inspect_method
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|       verbose, $VERBOSE = $VERBOSE, nil
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|       all_assertions do |all|
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|         IRB::Inspector::INSPECTORS.invert.each_value do |mode|
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|           all.for(mode) do
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|             input = TestInputMethod.new([
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|                 "[BasicObject.new, Class.new]\n",
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|               ])
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|             irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
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|             irb.context.inspect_mode = mode
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|             out, err = capture_output do
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|               irb.eval_input
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|             end
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|             assert_empty err
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|             assert_match(/\(Object doesn't support #inspect\)\n(=> )?\n/, out)
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|           end
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|         end
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|       end
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|     ensure
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|       $VERBOSE = verbose
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|     end
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| 
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|     def test_default_config
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|       assert_equal(true, @context.use_colorize?)
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|       assert_equal(true, @context.use_autocomplete?)
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|     end
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| 
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|     def test_assignment_expression
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|       input = TestInputMethod.new
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|       irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
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|       [
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|         "foo = bar",
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|         "@foo = bar",
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|         "$foo = bar",
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|         "@@foo = bar",
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|         "::Foo = bar",
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|         "a::Foo = bar",
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|         "Foo = bar",
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|         "foo.bar = 1",
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|         "foo[1] = bar",
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|         "foo += bar",
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|         "foo -= bar",
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|         "foo ||= bar",
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|         "foo &&= bar",
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|         "foo, bar = 1, 2",
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|         "foo.bar=(1)",
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|         "foo; foo = bar",
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|         "foo; foo = bar; ;\n ;",
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|         "foo\nfoo = bar",
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|       ].each do |exp|
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|         assert(
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|           irb.assignment_expression?(exp),
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|           "#{exp.inspect}: should be an assignment expression"
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|         )
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|       end
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| 
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|       [
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|         "foo",
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|         "foo.bar",
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|         "foo[0]",
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|         "foo = bar; foo",
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|         "foo = bar\nfoo",
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|       ].each do |exp|
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|         refute(
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|           irb.assignment_expression?(exp),
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|           "#{exp.inspect}: should not be an assignment expression"
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|         )
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|       end
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|     end
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| 
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|     def test_echo_on_assignment
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|       input = TestInputMethod.new([
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|         "a = 1\n",
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|         "a\n",
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|         "a, b = 2, 3\n",
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|         "a\n",
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|         "b\n",
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|         "b = 4\n",
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|         "_\n"
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|       ])
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|       irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
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|       irb.context.return_format = "=> %s\n"
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| 
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|       # The default
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|       irb.context.echo = true
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|       irb.context.echo_on_assignment = false
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("=> 1\n=> 2\n=> 3\n=> 4\n", out)
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| 
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|       # Everything is output, like before echo_on_assignment was introduced
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|       input.reset
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|       irb.context.echo = true
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|       irb.context.echo_on_assignment = true
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("=> 1\n=> 1\n=> [2, 3]\n=> 2\n=> 3\n=> 4\n=> 4\n", out)
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| 
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|       # Nothing is output when echo is false
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|       input.reset
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|       irb.context.echo = false
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|       irb.context.echo_on_assignment = false
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("", out)
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| 
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|       # Nothing is output when echo is false even if echo_on_assignment is true
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|       input.reset
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|       irb.context.echo = false
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|       irb.context.echo_on_assignment = true
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("", out)
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|     end
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| 
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|     def test_omit_on_assignment
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|       input = TestInputMethod.new([
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|         "a = [1] * 100\n",
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|         "a\n",
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|       ])
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|       value = [1] * 100
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|       irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
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|       irb.context.return_format = "=> %s\n"
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| 
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|       irb.context.echo = true
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|       irb.context.echo_on_assignment = false
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("=> \n#{value.pretty_inspect}", out)
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| 
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|       input.reset
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|       irb.context.echo = true
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|       irb.context.echo_on_assignment = :truncate
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("=> \n#{value.pretty_inspect[0..3]}...\n=> \n#{value.pretty_inspect}", out)
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| 
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|       input.reset
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|       irb.context.echo = true
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|       irb.context.echo_on_assignment = true
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("=> \n#{value.pretty_inspect}=> \n#{value.pretty_inspect}", out)
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| 
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|       input.reset
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|       irb.context.echo = false
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|       irb.context.echo_on_assignment = false
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("", out)
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| 
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|       input.reset
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|       irb.context.echo = false
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|       irb.context.echo_on_assignment = :truncate
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("", out)
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| 
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|       input.reset
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|       irb.context.echo = false
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|       irb.context.echo_on_assignment = true
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("", out)
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|     end
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| 
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|     def test_omit_multiline_on_assignment
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|       input = TestInputMethod.new([
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|         "class A; def inspect; ([?* * 1000] * 3).join(%{\\n}); end; end; a = A.new\n",
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|         "a\n"
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|       ])
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|       value = ([?* * 1000] * 3).join(%{\n})
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|       value_first_line = (?* * 1000).to_s
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|       irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
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|       irb.context.return_format = "=> %s\n"
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| 
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|       irb.context.echo = true
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|       irb.context.echo_on_assignment = false
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("=> \n#{value}\n", out)
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|       irb.context.evaluate('A.remove_method(:inspect)', 0)
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| 
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|       input.reset
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|       irb.context.echo = true
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|       irb.context.echo_on_assignment = :truncate
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("=> #{value_first_line[0..(input.winsize.last - 9)]}...\e[0m\n=> \n#{value}\n", out)
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|       irb.context.evaluate('A.remove_method(:inspect)', 0)
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| 
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|       input.reset
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|       irb.context.echo = true
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|       irb.context.echo_on_assignment = true
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("=> \n#{value}\n=> \n#{value}\n", out)
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|       irb.context.evaluate('A.remove_method(:inspect)', 0)
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| 
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|       input.reset
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|       irb.context.echo = false
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|       irb.context.echo_on_assignment = false
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("", out)
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|       irb.context.evaluate('A.remove_method(:inspect)', 0)
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| 
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|       input.reset
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|       irb.context.echo = false
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|       irb.context.echo_on_assignment = :truncate
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("", out)
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|       irb.context.evaluate('A.remove_method(:inspect)', 0)
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| 
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|       input.reset
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|       irb.context.echo = false
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|       irb.context.echo_on_assignment = true
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("", out)
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|       irb.context.evaluate('A.remove_method(:inspect)', 0)
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|     end
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| 
 | |
|     def test_echo_on_assignment_conf
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|       # Default
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|       IRB.conf[:ECHO] = nil
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|       IRB.conf[:ECHO_ON_ASSIGNMENT] = nil
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|       input = TestInputMethod.new()
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|       irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
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| 
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|       assert(irb.context.echo?, "echo? should be true by default")
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|       assert_equal(:truncate, irb.context.echo_on_assignment?, "echo_on_assignment? should be :truncate by default")
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| 
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|       # Explicitly set :ECHO to false
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|       IRB.conf[:ECHO] = false
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|       irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
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| 
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|       refute(irb.context.echo?, "echo? should be false when IRB.conf[:ECHO] is set to false")
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|       assert_equal(:truncate, irb.context.echo_on_assignment?, "echo_on_assignment? should be :truncate by default")
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| 
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|       # Explicitly set :ECHO_ON_ASSIGNMENT to true
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|       IRB.conf[:ECHO] = nil
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|       IRB.conf[:ECHO_ON_ASSIGNMENT] = false
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|       irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
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| 
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|       assert(irb.context.echo?, "echo? should be true by default")
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|       refute(irb.context.echo_on_assignment?, "echo_on_assignment? should be false when IRB.conf[:ECHO_ON_ASSIGNMENT] is set to false")
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|     end
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| 
 | |
|     def test_multiline_output_on_default_inspector
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|       main = Object.new
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|       def main.inspect
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|         "abc\ndef"
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|       end
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|       input = TestInputMethod.new([
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|         "self"
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|       ])
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|       irb = IRB::Irb.new(IRB::WorkSpace.new(main), input)
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|       irb.context.return_format = "=> %s\n"
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| 
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|       # The default
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|       irb.context.newline_before_multiline_output = true
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("=> \nabc\ndef\n",
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|                    out)
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| 
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|       # No newline before multiline output
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|       input.reset
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|       irb.context.newline_before_multiline_output = false
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|       out, err = capture_output do
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|         irb.eval_input
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|       end
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|       assert_empty err
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|       assert_equal("=> abc\ndef\n",
 | |
|                    out)
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|     end
 | |
| 
 | |
|     def test_default_return_format
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|       IRB.conf[:PROMPT][:MY_PROMPT] = {
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|         :PROMPT_I => "%03n> ",
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|         :PROMPT_N => "%03n> ",
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|         :PROMPT_S => "%03n> ",
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|         :PROMPT_C => "%03n> "
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|         # without :RETURN
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|         # :RETURN => "%s\n"
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|       }
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|       IRB.conf[:PROMPT_MODE] = :MY_PROMPT
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|       input = TestInputMethod.new([
 | |
|         "3"
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|       ])
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|       irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
 | |
|       out, err = capture_output do
 | |
|         irb.eval_input
 | |
|       end
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|       assert_empty err
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|       assert_equal("3\n",
 | |
|                    out)
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|     end
 | |
| 
 | |
|     def test_eval_input_with_exception
 | |
|       pend if RUBY_ENGINE == 'truffleruby'
 | |
|       verbose, $VERBOSE = $VERBOSE, nil
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|       input = TestInputMethod.new([
 | |
|         "def hoge() fuga; end; def fuga() raise; end; hoge\n",
 | |
|       ])
 | |
|       irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
 | |
|       out, err = capture_output do
 | |
|         irb.eval_input
 | |
|       end
 | |
|       assert_empty err
 | |
|       if '2.5.0' <= RUBY_VERSION && RUBY_VERSION < '3.0.0' && STDOUT.tty?
 | |
|         expected = [
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|           :*, /Traceback \(most recent call last\):\n/,
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|           :*, /\t 2: from \(irb\):1:in `<main>'\n/,
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|           :*, /\t 1: from \(irb\):1:in `hoge'\n/,
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|           :*, /\(irb\):1:in `fuga': unhandled exception\n/,
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|         ]
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|       else
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|         expected = [
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|           :*, /\(irb\):1:in `fuga': unhandled exception\n/,
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|           :*, /\tfrom \(irb\):1:in `hoge'\n/,
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|           :*, /\tfrom \(irb\):1:in `<main>'\n/,
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|           :*
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|         ]
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|       end
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|       assert_pattern_list(expected, out)
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|     ensure
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|       $VERBOSE = verbose
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|     end
 | |
| 
 | |
|     def test_eval_input_with_invalid_byte_sequence_exception
 | |
|       pend if RUBY_ENGINE == 'truffleruby'
 | |
|       verbose, $VERBOSE = $VERBOSE, nil
 | |
|       input = TestInputMethod.new([
 | |
|         %Q{def hoge() fuga; end; def fuga() raise "A\\xF3B"; end; hoge\n},
 | |
|       ])
 | |
|       irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
 | |
|       out, err = capture_output do
 | |
|         irb.eval_input
 | |
|       end
 | |
|       assert_empty err
 | |
|       if '2.5.0' <= RUBY_VERSION && RUBY_VERSION < '3.0.0' && STDOUT.tty?
 | |
|         expected = [
 | |
|           :*, /Traceback \(most recent call last\):\n/,
 | |
|           :*, /\t 2: from \(irb\):1:in `<main>'\n/,
 | |
|           :*, /\t 1: from \(irb\):1:in `hoge'\n/,
 | |
|           :*, /\(irb\):1:in `fuga': A\\xF3B \(RuntimeError\)\n/,
 | |
|         ]
 | |
|       else
 | |
|         expected = [
 | |
|           :*, /\(irb\):1:in `fuga': A\\xF3B \(RuntimeError\)\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `hoge'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `<main>'\n/,
 | |
|           :*
 | |
|         ]
 | |
|       end
 | |
|       assert_pattern_list(expected, out)
 | |
|     ensure
 | |
|       $VERBOSE = verbose
 | |
|     end
 | |
| 
 | |
|     def test_eval_input_with_long_exception
 | |
|       pend if RUBY_ENGINE == 'truffleruby'
 | |
|       verbose, $VERBOSE = $VERBOSE, nil
 | |
|       nesting = 20
 | |
|       generated_code = ''
 | |
|       nesting.times do |i|
 | |
|         generated_code << "def a#{i}() a#{i + 1}; end; "
 | |
|       end
 | |
|       generated_code << "def a#{nesting}() raise; end; a0\n"
 | |
|       input = TestInputMethod.new([
 | |
|         generated_code
 | |
|       ])
 | |
|       irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
 | |
|       out, err = capture_output do
 | |
|         irb.eval_input
 | |
|       end
 | |
|       assert_empty err
 | |
|       if '2.5.0' <= RUBY_VERSION && RUBY_VERSION < '3.0.0' && STDOUT.tty?
 | |
|         expected = [
 | |
|           :*, /Traceback \(most recent call last\):\n/,
 | |
|           :*, /\t... \d+ levels...\n/,
 | |
|           :*, /\t16: from \(irb\):1:in `a4'\n/,
 | |
|           :*, /\t15: from \(irb\):1:in `a5'\n/,
 | |
|           :*, /\t14: from \(irb\):1:in `a6'\n/,
 | |
|           :*, /\t13: from \(irb\):1:in `a7'\n/,
 | |
|           :*, /\t12: from \(irb\):1:in `a8'\n/,
 | |
|           :*, /\t11: from \(irb\):1:in `a9'\n/,
 | |
|           :*, /\t10: from \(irb\):1:in `a10'\n/,
 | |
|           :*, /\t 9: from \(irb\):1:in `a11'\n/,
 | |
|           :*, /\t 8: from \(irb\):1:in `a12'\n/,
 | |
|           :*, /\t 7: from \(irb\):1:in `a13'\n/,
 | |
|           :*, /\t 6: from \(irb\):1:in `a14'\n/,
 | |
|           :*, /\t 5: from \(irb\):1:in `a15'\n/,
 | |
|           :*, /\t 4: from \(irb\):1:in `a16'\n/,
 | |
|           :*, /\t 3: from \(irb\):1:in `a17'\n/,
 | |
|           :*, /\t 2: from \(irb\):1:in `a18'\n/,
 | |
|           :*, /\t 1: from \(irb\):1:in `a19'\n/,
 | |
|           :*, /\(irb\):1:in `a20': unhandled exception\n/,
 | |
|         ]
 | |
|       else
 | |
|         expected = [
 | |
|           :*, /\(irb\):1:in `a20': unhandled exception\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a19'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a18'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a17'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a16'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a15'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a14'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a13'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a12'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a11'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a10'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a9'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a8'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a7'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a6'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a5'\n/,
 | |
|           :*, /\tfrom \(irb\):1:in `a4'\n/,
 | |
|           :*, /\t... \d+ levels...\n/,
 | |
|         ]
 | |
|       end
 | |
|       assert_pattern_list(expected, out)
 | |
|     ensure
 | |
|       $VERBOSE = verbose
 | |
|     end
 | |
| 
 | |
|     def test_lineno
 | |
|       input = TestInputMethod.new([
 | |
|         "\n",
 | |
|         "__LINE__\n",
 | |
|         "__LINE__\n",
 | |
|         "\n",
 | |
|         "\n",
 | |
|         "__LINE__\n",
 | |
|       ])
 | |
|       irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
 | |
|       out, err = capture_output do
 | |
|         irb.eval_input
 | |
|       end
 | |
|       assert_empty err
 | |
|       assert_pattern_list([
 | |
|           :*, /\b2\n/,
 | |
|           :*, /\b3\n/,
 | |
|           :*, /\b6\n/,
 | |
|         ], out)
 | |
|     end
 | |
|   end
 | |
| end
 | 
