diff options
Diffstat (limited to 'spec/ruby/core/kernel/eval_spec.rb')
| -rw-r--r-- | spec/ruby/core/kernel/eval_spec.rb | 189 |
1 files changed, 165 insertions, 24 deletions
diff --git a/spec/ruby/core/kernel/eval_spec.rb b/spec/ruby/core/kernel/eval_spec.rb index 1e2764a4de..e027294347 100644 --- a/spec/ruby/core/kernel/eval_spec.rb +++ b/spec/ruby/core/kernel/eval_spec.rb @@ -135,7 +135,7 @@ describe "Kernel#eval" do it "includes file and line information in syntax error" do expected = 'speccing.rb' -> { - eval('if true',TOPLEVEL_BINDING, expected) + eval('if true', TOPLEVEL_BINDING, expected) }.should raise_error(SyntaxError) { |e| e.message.should =~ /#{expected}:1:.+/ } @@ -144,7 +144,7 @@ describe "Kernel#eval" do it "evaluates string with given filename and negative linenumber" do expected_file = 'speccing.rb' -> { - eval('if true',TOPLEVEL_BINDING, expected_file, -100) + eval('if true', TOPLEVEL_BINDING, expected_file, -100) }.should raise_error(SyntaxError) { |e| e.message.should =~ /#{expected_file}:-100:.+/ } @@ -159,18 +159,7 @@ describe "Kernel#eval" do end end - ruby_version_is ""..."3.0" do - it "uses the filename of the binding if none is provided" do - eval("__FILE__").should == "(eval)" - suppress_warning {eval("__FILE__", binding)}.should == __FILE__ - eval("__FILE__", binding, "success").should == "success" - suppress_warning {eval("eval '__FILE__', binding")}.should == "(eval)" - suppress_warning {eval("eval '__FILE__', binding", binding)}.should == __FILE__ - suppress_warning {eval("eval '__FILE__', binding", binding, 'success')}.should == 'success' - end - end - - ruby_version_is "3.0" do + ruby_version_is ""..."3.3" do it "uses (eval) filename if none is provided" do eval("__FILE__").should == "(eval)" eval("__FILE__", binding).should == "(eval)" @@ -180,8 +169,96 @@ describe "Kernel#eval" do eval("eval '__FILE__', binding", binding, 'success').should == '(eval)' eval("eval '__FILE__', binding, 'success'", binding).should == 'success' end + + it 'uses (eval) for __FILE__ and 1 for __LINE__ with a binding argument' do + eval("[__FILE__, __LINE__]", binding).should == ["(eval)", 1] + end end + context "parameter forwarding" do + it "allows anonymous rest parameter forwarding" do + object = Object.new + def object.foo(a, b, c) + [a, b, c] + end + def object.bar(*) + eval "foo(*)" + end + + object.bar(1, 2, 3).should == [1, 2, 3] + end + + it "allows anonymous keyword parameters forwarding" do + object = Object.new + def object.foo(a:, b:, c:) + [a, b, c] + end + def object.bar(**) + eval "foo(**)" + end + + object.bar(a: 1, b: 2, c: 3).should == [1, 2, 3] + end + + it "allows anonymous block parameter forwarding" do + object = Object.new + def object.foo(&block) + block.call + end + def object.bar(&) + eval "foo(&)" + end + + object.bar { :foobar }.should == :foobar + end + + it "allows ... forwarding" do + object = Object.new + def object.foo(a, b:, &block) + [a, b, block.call] + end + def object.bar(...) + eval "foo(...)" + end + + object.bar(1, b: 2) { 3 }.should == [1, 2, 3] + end + + it "allows parameter forwarding to super" do + m = Module.new do + def foo(a, b:, &block) + [a, b, block.call] + end + end + + c = Class.new do + include m + + def foo(a, b:, &block) + eval "super" + end + end + + object = c.new + object.foo(1, b: 2) { 3 }.should == [1, 2, 3] + end + end + + ruby_version_is "3.3" do + it "uses (eval at __FILE__:__LINE__) if none is provided" do + eval("__FILE__").should == "(eval at #{__FILE__}:#{__LINE__})" + eval("__FILE__", binding).should == "(eval at #{__FILE__}:#{__LINE__})" + eval("__FILE__", binding, "success").should == "success" + eval("eval '__FILE__', binding").should == "(eval at (eval at #{__FILE__}:#{__LINE__}):1)" + eval("eval '__FILE__', binding", binding).should == "(eval at (eval at #{__FILE__}:#{__LINE__}):1)" + eval("eval '__FILE__', binding", binding, 'success').should == "(eval at success:1)" + eval("eval '__FILE__', binding, 'success'", binding).should == 'success' + end + + it 'uses (eval at __FILE__:__LINE__) for __FILE__ and 1 for __LINE__ with a binding argument' do + eval("[__FILE__, __LINE__]", binding).should == ["(eval at #{__FILE__}:#{__LINE__})", 1] + end + end # Found via Rubinius bug github:#149 it "does not alter the value of __FILE__ in the binding" do first_time = EvalSpecs.call_eval @@ -218,6 +295,20 @@ describe "Kernel#eval" do -> { eval("return :eval") }.call.should == :eval end + it "returns from the method calling #eval when evaluating 'return'" do + def eval_return(n) + eval("return n*2") + end + -> { eval_return(3) }.call.should == 6 + end + + it "returns from the method calling #eval when evaluating 'return' in BEGIN" do + def eval_return(n) + eval("BEGIN {return n*3}") + end + -> { eval_return(4) }.call.should == 12 + end + it "unwinds through a Proc-style closure and returns from a lambda-style closure in the closure chain" do code = fixture __FILE__, "eval_return_with_lambda.rb" ruby_exe(code).chomp.should == "a,b,c,eval,f" @@ -239,6 +330,39 @@ describe "Kernel#eval" do end end + it "makes flip-flop operator work correctly" do + ScratchPad.record [] + + eval "10.times { |i| ScratchPad << i if (i == 4)...(i == 4) }" + ScratchPad.recorded.should == [4, 5, 6, 7, 8, 9] + + ScratchPad.clear + end + + it "returns nil if given an empty string" do + eval("").should == nil + end + + context "with shebang" do + it "ignores shebang with ruby interpreter" do + pid = eval(<<~CODE.b) + #!/usr/bin/env ruby + Process.pid + CODE + + pid.should == Process.pid + end + + it "ignores shebang with non-ruby interpreter" do + pid = eval(<<~CODE.b) + #!/usr/bin/env puma + Process.pid + CODE + + pid.should == Process.pid + end + end + # See language/magic_comment_spec.rb for more magic comments specs describe "with a magic encoding comment" do it "uses the magic comment encoding for the encoding of literal strings" do @@ -258,6 +382,8 @@ CODE eval(code) EvalSpecs.constants(false).should include(:"Vπ") EvalSpecs::Vπ.should == 3.14 + ensure + EvalSpecs.send(:remove_const, :Vπ) end it "allows an emacs-style magic comment encoding" do @@ -271,6 +397,8 @@ CODE eval(code) EvalSpecs.constants(false).should include(:"Vπemacs") EvalSpecs::Vπemacs.should == 3.14 + ensure + EvalSpecs.send(:remove_const, :Vπemacs) end it "allows spaces before the magic encoding comment" do @@ -284,6 +412,8 @@ CODE eval(code) EvalSpecs.constants(false).should include(:"Vπspaces") EvalSpecs::Vπspaces.should == 3.14 + ensure + EvalSpecs.send(:remove_const, :Vπspaces) end it "allows a shebang line before the magic encoding comment" do @@ -298,6 +428,8 @@ CODE eval(code) EvalSpecs.constants(false).should include(:"Vπshebang") EvalSpecs::Vπshebang.should == 3.14 + ensure + EvalSpecs.send(:remove_const, :Vπshebang) end it "allows a shebang line and some spaces before the magic encoding comment" do @@ -312,15 +444,16 @@ CODE eval(code) EvalSpecs.constants(false).should include(:"Vπshebang_spaces") EvalSpecs::Vπshebang_spaces.should == 3.14 + ensure + EvalSpecs.send(:remove_const, :Vπshebang_spaces) end it "allows a magic encoding comment and a subsequent frozen_string_literal magic comment" do - # Make sure frozen_string_literal is not default true - eval("'foo'".b).frozen?.should be_false + frozen_string_default = "test".frozen? code = <<CODE.b # encoding: UTF-8 -# frozen_string_literal: true +# frozen_string_literal: #{!frozen_string_default} class EvalSpecs Vπstring = "frozen" end @@ -330,7 +463,9 @@ CODE EvalSpecs.constants(false).should include(:"Vπstring") EvalSpecs::Vπstring.should == "frozen" EvalSpecs::Vπstring.encoding.should == Encoding::UTF_8 - EvalSpecs::Vπstring.frozen?.should be_true + EvalSpecs::Vπstring.frozen?.should == !frozen_string_default + ensure + EvalSpecs.send(:remove_const, :Vπstring) end it "allows a magic encoding comment and a frozen_string_literal magic comment on the same line in emacs style" do @@ -346,11 +481,14 @@ CODE EvalSpecs::Vπsame_line.should == "frozen" EvalSpecs::Vπsame_line.encoding.should == Encoding::UTF_8 EvalSpecs::Vπsame_line.frozen?.should be_true + ensure + EvalSpecs.send(:remove_const, :Vπsame_line) end it "ignores the magic encoding comment if it is after a frozen_string_literal magic comment" do + frozen_string_default = "test".frozen? code = <<CODE.b -# frozen_string_literal: true +# frozen_string_literal: #{!frozen_string_default} # encoding: UTF-8 class EvalSpecs Vπfrozen_first = "frozen" @@ -364,23 +502,26 @@ CODE value = EvalSpecs.const_get(binary_constant) value.should == "frozen" value.encoding.should == Encoding::BINARY - value.frozen?.should be_true + value.frozen?.should == !frozen_string_default + ensure + EvalSpecs.send(:remove_const, binary_constant) end it "ignores the frozen_string_literal magic comment if it appears after a token and warns if $VERBOSE is true" do + frozen_string_default = "test".frozen? code = <<CODE some_token_before_magic_comment = :anything -# frozen_string_literal: true +# frozen_string_literal: #{!frozen_string_default} class EvalSpecs Vπstring_not_frozen = "not frozen" end CODE - -> { eval(code) }.should complain(/warning: `frozen_string_literal' is ignored after any tokens/, verbose: true) - EvalSpecs::Vπstring_not_frozen.frozen?.should be_false + -> { eval(code) }.should complain(/warning: [`']frozen_string_literal' is ignored after any tokens/, verbose: true) + EvalSpecs::Vπstring_not_frozen.frozen?.should == frozen_string_default EvalSpecs.send :remove_const, :Vπstring_not_frozen -> { eval(code) }.should_not complain(verbose: false) - EvalSpecs::Vπstring_not_frozen.frozen?.should be_false + EvalSpecs::Vπstring_not_frozen.frozen?.should == frozen_string_default EvalSpecs.send :remove_const, :Vπstring_not_frozen end end |