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Diffstat (limited to 'test/ruby/test_lambda.rb')
| -rw-r--r-- | test/ruby/test_lambda.rb | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/test/ruby/test_lambda.rb b/test/ruby/test_lambda.rb deleted file mode 100644 index 3ac2e4cb98..0000000000 --- a/test/ruby/test_lambda.rb +++ /dev/null @@ -1,183 +0,0 @@ -# frozen_string_literal: false -require 'test/unit' - -class TestLambdaParameters < Test::Unit::TestCase - - def test_exact_parameter - assert_raise(ArgumentError){(1..3).each(&lambda{})} - end - - def test_call_simple - assert_equal(1, lambda{|a| a}.call(1)) - assert_equal([1,2], lambda{|a, b| [a,b]}.call(1,2)) - assert_raise(ArgumentError) { lambda{|a|}.call(1,2) } - assert_raise(ArgumentError) { lambda{|a|}.call() } - assert_raise(ArgumentError) { lambda{}.call(1) } - assert_raise(ArgumentError) { lambda{|a, b|}.call(1,2,3) } - - assert_equal(1, ->(a){ a }.call(1)) - assert_equal([1,2], ->(a,b){ [a,b] }.call(1,2)) - assert_raise(ArgumentError) { ->(a){ }.call(1,2) } - assert_raise(ArgumentError) { ->(a){ }.call() } - assert_raise(ArgumentError) { ->(){ }.call(1) } - assert_raise(ArgumentError) { ->(a,b){ }.call(1,2,3) } - end - - def test_lambda_as_iterator - a = 0 - 2.times(&->(_){ a += 1 }) - assert_equal(2, a) - assert_raise(ArgumentError) {1.times(&->(){ a += 1 })} - bug9605 = '[ruby-core:61468] [Bug #9605]' - assert_nothing_raised(ArgumentError, bug9605) {1.times(&->(n){ a += 1 })} - assert_equal(3, a, bug9605) - assert_nothing_raised(ArgumentError, bug9605) { - a = %w(Hi there how are you).each_with_index.detect(&->(w, i) {w.length == 3}) - } - assert_equal(["how", 2], a, bug9605) - end - - def test_call_rest_args - assert_equal([1,2], ->(*a){ a }.call(1,2)) - assert_equal([1,2,[]], ->(a,b,*c){ [a,b,c] }.call(1,2)) - assert_raise(ArgumentError){ ->(a,*b){ }.call() } - end - - def test_call_opt_args - assert_equal([1,2,3,4], ->(a,b,c=3,d=4){ [a,b,c,d] }.call(1,2)) - assert_equal([1,2,3,4], ->(a,b,c=0,d=4){ [a,b,c,d] }.call(1,2,3)) - assert_raise(ArgumentError){ ->(a,b=1){ }.call() } - assert_raise(ArgumentError){ ->(a,b=1){ }.call(1,2,3) } - end - - def test_call_rest_and_opt - assert_equal([1,2,3,[]], ->(a,b=2,c=3,*d){ [a,b,c,d] }.call(1)) - assert_equal([1,2,3,[]], ->(a,b=0,c=3,*d){ [a,b,c,d] }.call(1,2)) - assert_equal([1,2,3,[4,5,6]], ->(a,b=0,c=0,*d){ [a,b,c,d] }.call(1,2,3,4,5,6)) - assert_raise(ArgumentError){ ->(a,b=1,*c){ }.call() } - end - - def test_call_with_block - f = ->(a,b,c=3,*d,&e){ [a,b,c,d,e.call(d + [a,b,c])] } - assert_equal([1,2,3,[],6], f.call(1,2){|z| z.inject{|s,x| s+x} } ) - assert_equal(nil, ->(&b){ b }.call) - foo { puts "bogus block " } - assert_equal(1, ->(&b){ b.call }.call { 1 }) - _b = nil - assert_equal(1, ->(&_b){ _b.call }.call { 1 }) - assert_nil(_b) - end - - def test_call_block_from_lambda - bug9605 = '[ruby-core:61470] [Bug #9605]' - plus = ->(x,y) {x+y} - assert_raise(ArgumentError, bug9605) {proc(&plus).call [1,2]} - end - - def test_instance_exec - bug12568 = '[ruby-core:76300] [Bug #12568]' - assert_nothing_raised(ArgumentError, bug12568) do - instance_exec([1,2,3], &->(a=[]){ a }) - end - end - - def test_instance_eval_return - bug13090 = '[ruby-core:78917] [Bug #13090] cannot return in lambdas' - x = :ng - assert_nothing_raised(LocalJumpError) do - x = instance_eval(&->(_){return :ok}) - end - ensure - assert_equal(:ok, x, bug13090) - end - - def test_instance_exec_return - bug13090 = '[ruby-core:78917] [Bug #13090] cannot return in lambdas' - x = :ng - assert_nothing_raised(LocalJumpError) do - x = instance_exec(&->(){return :ok}) - end - ensure - assert_equal(:ok, x, bug13090) - end - - def test_arity_error - assert_raise(ArgumentError, '[Bug #12705]') do - [1, 2].tap(&lambda {|a, b|}) - end - end - - def foo - assert_equal(nil, ->(&b){ b }.call) - end - - def test_in_basic_object - bug5966 = '[ruby-core:42349]' - called = false - BasicObject.new.instance_eval {->() {called = true}.()} - assert_equal(true, called, bug5966) - end - - def test_location_on_error - bug6151 = '[ruby-core:43314]' - called = 0 - line, f = __LINE__, lambda do - called += 1 - true - end - e = assert_raise(ArgumentError) do - f.call(42) - end - assert_send([e.backtrace.first, :start_with?, "#{__FILE__}:#{line}:"], bug6151) - assert_equal(0, called) - e = assert_raise(ArgumentError) do - 42.times(&f) - end - assert_send([e.backtrace.first, :start_with?, "#{__FILE__}:#{line}:"], bug6151) - assert_equal(0, called) - end - - def return_in_current(val) - 1.tap(&->(*) {return 0}) - val - end - - def yield_block - yield - end - - def return_in_callee(val) - yield_block(&->(*) {return 0}) - val - end - - def test_return - feature8693 = '[ruby-core:56193] [Feature #8693]' - assert_equal(42, return_in_current(42), feature8693) - assert_equal(42, return_in_callee(42), feature8693) - end - - def test_do_lambda_source_location - exp_lineno = __LINE__ + 3 - lmd = ->(x, - y, - z) do - # - end - file, lineno = lmd.source_location - assert_match(/^#{ Regexp.quote(__FILE__) }$/, file) - assert_equal(exp_lineno, lineno, "must be at the beginning of the block") - end - - def test_brace_lambda_source_location - exp_lineno = __LINE__ + 3 - lmd = ->(x, - y, - z) { - # - } - file, lineno = lmd.source_location - assert_match(/^#{ Regexp.quote(__FILE__) }$/, file) - assert_equal(exp_lineno, lineno, "must be at the beginning of the block") - end -end |