diff options
Diffstat (limited to 'spec/ruby/core/kernel/lambda_spec.rb')
-rw-r--r-- | spec/ruby/core/kernel/lambda_spec.rb | 78 |
1 files changed, 49 insertions, 29 deletions
diff --git a/spec/ruby/core/kernel/lambda_spec.rb b/spec/ruby/core/kernel/lambda_spec.rb index 9a960f3589..565536ac0d 100644 --- a/spec/ruby/core/kernel/lambda_spec.rb +++ b/spec/ruby/core/kernel/lambda_spec.rb @@ -26,42 +26,44 @@ describe "Kernel.lambda" do l.lambda?.should be_true end - it "creates a lambda-style Proc if given a literal block via Kernel.public_send" do - suppress_warning do - l = Kernel.public_send(:lambda) { 42 } - l.lambda?.should be_true + ruby_version_is ""..."3.3" do + it "creates a lambda-style Proc if given a literal block via Kernel.public_send" do + suppress_warning do + l = Kernel.public_send(:lambda) { 42 } + l.lambda?.should be_true + end end - end - it "returns the passed Proc if given an existing Proc" do - some_proc = proc {} - l = suppress_warning {lambda(&some_proc)} - l.should equal(some_proc) - l.lambda?.should be_false - end + it "returns the passed Proc if given an existing Proc" do + some_proc = proc {} + l = suppress_warning {lambda(&some_proc)} + l.should equal(some_proc) + l.lambda?.should be_false + end - it "creates a lambda-style Proc when called with zsuper" do - suppress_warning do - l = KernelSpecs::LambdaSpecs::ForwardBlockWithZSuper.new.lambda { 42 } - l.lambda?.should be_true - l.call.should == 42 + it "creates a lambda-style Proc when called with zsuper" do + suppress_warning do + l = KernelSpecs::LambdaSpecs::ForwardBlockWithZSuper.new.lambda { 42 } + l.lambda?.should be_true + l.call.should == 42 - lambda { l.call(:extra) }.should raise_error(ArgumentError) + lambda { l.call(:extra) }.should raise_error(ArgumentError) + end end - end - it "returns the passed Proc if given an existing Proc through super" do - some_proc = proc { } - l = KernelSpecs::LambdaSpecs::SuperAmpersand.new.lambda(&some_proc) - l.should equal(some_proc) - l.lambda?.should be_false - end + it "returns the passed Proc if given an existing Proc through super" do + some_proc = proc { } + l = KernelSpecs::LambdaSpecs::SuperAmpersand.new.lambda(&some_proc) + l.should equal(some_proc) + l.lambda?.should be_false + end - it "does not create lambda-style Procs when captured with #method" do - kernel_lambda = method(:lambda) - l = suppress_warning {kernel_lambda.call { 42 }} - l.lambda?.should be_false - l.call(:extra).should == 42 + it "does not create lambda-style Procs when captured with #method" do + kernel_lambda = method(:lambda) + l = suppress_warning {kernel_lambda.call { 42 }} + l.lambda?.should be_false + l.call(:extra).should == 42 + end end it "checks the arity of the call when no args are specified" do @@ -135,4 +137,22 @@ describe "Kernel.lambda" do klass.new.lambda { 42 }.should be_an_instance_of Proc klass.new.ret.should == 1 end + + context "when called without a literal block" do + ruby_version_is ""..."3.3" do + it "warns when proc isn't a lambda" do + -> { lambda(&proc{}) }.should complain("#{__FILE__}:#{__LINE__}: warning: lambda without a literal block is deprecated; use the proc without lambda instead\n") + end + end + + ruby_version_is "3.3" do + it "raises when proc isn't a lambda" do + -> { lambda(&proc{}) }.should raise_error(ArgumentError, /the lambda method requires a literal block/) + end + end + + it "doesn't warn when proc is lambda" do + -> { lambda(&lambda{}) }.should_not complain(verbose: true) + end + end end |