diff options
Diffstat (limited to 'spec/ruby/language/lambda_spec.rb')
| -rw-r--r-- | spec/ruby/language/lambda_spec.rb | 67 |
1 files changed, 28 insertions, 39 deletions
diff --git a/spec/ruby/language/lambda_spec.rb b/spec/ruby/language/lambda_spec.rb index 3ab3569ebe..43e2d60ae3 100644 --- a/spec/ruby/language/lambda_spec.rb +++ b/spec/ruby/language/lambda_spec.rb @@ -1,5 +1,5 @@ -require_relative '../spec_helper' -require_relative 'fixtures/classes' +require File.expand_path('../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) describe "A lambda literal -> () { }" do SpecEvaluate.desc = "for definition" @@ -7,7 +7,7 @@ describe "A lambda literal -> () { }" do it "returns a Proc object when used in a BasicObject method" do klass = Class.new(BasicObject) do def create_lambda - -> { } + -> () { } end end @@ -15,19 +15,11 @@ describe "A lambda literal -> () { }" do end it "does not execute the block" do - -> { fail }.should be_an_instance_of(Proc) + ->() { fail }.should be_an_instance_of(Proc) end it "returns a lambda" do - -> { }.lambda?.should be_true - end - - it "may include a rescue clause" do - eval('-> do raise ArgumentError; rescue ArgumentError; 7; end').should be_an_instance_of(Proc) - end - - it "may include a ensure clause" do - eval('-> do 1; ensure; 2; end').should be_an_instance_of(Proc) + -> () { }.lambda?.should be_true end it "has its own scope for local variables" do @@ -109,7 +101,7 @@ describe "A lambda literal -> () { }" do @a = -> (a:) { a } ruby - -> { @a.() }.should raise_error(ArgumentError) + lambda { @a.() }.should raise_error(ArgumentError) @a.(a: 1).should == 1 end @@ -127,7 +119,7 @@ describe "A lambda literal -> () { }" do @a.().should be_nil @a.(a: 1, b: 2).should be_nil - -> { @a.(1) }.should raise_error(ArgumentError) + lambda { @a.(1) }.should raise_error(ArgumentError) end evaluate <<-ruby do @@ -151,8 +143,8 @@ describe "A lambda literal -> () { }" do ruby @a.(1, 2).should == [1, 2] - -> { @a.() }.should raise_error(ArgumentError) - -> { @a.(1) }.should raise_error(ArgumentError) + lambda { @a.() }.should raise_error(ArgumentError) + lambda { @a.(1) }.should raise_error(ArgumentError) end evaluate <<-ruby do @@ -185,8 +177,8 @@ describe "A lambda literal -> () { }" do @a.(1, 2, 3, a: 4, b: 5).should == {a: 4, b: 5} h = mock("keyword splat") - h.should_not_receive(:to_hash) - @a.(h).should == {} + h.should_receive(:to_hash).and_return({a: 1}) + @a.(h).should == {a: 1} end evaluate <<-ruby do @@ -263,23 +255,25 @@ describe "A lambda literal -> () { }" do end describe "with circular optional argument reference" do - it "raises a SyntaxError if using an existing local with the same name as the argument" do + it "shadows an existing local with the same name as the argument" do a = 1 -> { @proc = eval "-> (a=a) { a }" - }.should raise_error(SyntaxError) + }.should complain(/circular argument reference/) + @proc.call.should == nil end - it "raises a SyntaxError if there is an existing method with the same name as the argument" do + it "shadows an existing method with the same name as the argument" do def a; 1; end -> { @proc = eval "-> (a=a) { a }" - }.should raise_error(SyntaxError) + }.should complain(/circular argument reference/) + @proc.call.should == nil end it "calls an existing method with the same name as the argument if explicitly using ()" do def a; 1; end - -> a=a() { a }.call.should == 1 + -> (a=a()) { a }.call.should == 1 end end end @@ -308,13 +302,7 @@ describe "A lambda expression 'lambda { ... }'" do end it "requires a block" do - suppress_warning do - lambda { lambda }.should raise_error(ArgumentError) - end - end - - it "may include a rescue clause" do - eval('lambda do raise ArgumentError; rescue ArgumentError; 7; end').should be_an_instance_of(Proc) + lambda { lambda }.should raise_error(ArgumentError) end context "with an implicit block" do @@ -322,13 +310,14 @@ describe "A lambda expression 'lambda { ... }'" do def meth; lambda; end end - it "raises ArgumentError" do + it "can be created" do implicit_lambda = nil - suppress_warning do - -> { - meth { 1 } - }.should raise_error(ArgumentError, /tried to create Proc object without a block/) - end + -> { + implicit_lambda = meth { 1 } + }.should complain(/tried to create Proc object without a block/) + + implicit_lambda.lambda?.should be_true + implicit_lambda.call.should == 1 end end @@ -504,8 +493,8 @@ describe "A lambda expression 'lambda { ... }'" do @a.(1, 2, 3, a: 4, b: 5).should == {a: 4, b: 5} h = mock("keyword splat") - h.should_not_receive(:to_hash) - @a.(h).should == {} + h.should_receive(:to_hash).and_return({a: 1}) + @a.(h).should == {a: 1} end evaluate <<-ruby do |
