117 lines
3.6 KiB
Ruby
117 lines
3.6 KiB
Ruby
require_relative 'spec_helper'
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require_relative 'fixtures/proc'
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load_extension("proc")
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describe "C-API Proc function" do
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before :each do
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@p = CApiProcSpecs.new
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@prc = @p.rb_proc_new
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end
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describe "rb_proc_new" do
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it "returns a new valid Proc" do
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@prc.kind_of?(Proc).should == true
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end
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it "calls the C function wrapped by the Proc instance when sent #call" do
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@prc.call(:foo_bar).should == ":foo_bar"
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@prc.call([:foo, :bar]).should == "[:foo, :bar]"
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end
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it "calls the C function wrapped by the Proc instance when sent #[]" do
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@prc[:foo_bar].should == ":foo_bar"
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@prc[[:foo, :bar]].should == "[:foo, :bar]"
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end
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it "returns a Proc instance correctly described in #inspect without source location" do
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@prc.inspect.should =~ /^#<Proc:([^ :@]*?)>$/
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end
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it "returns a Proc instance with #arity == -1" do
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@prc.arity.should == -1
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end
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it "shouldn't be equal to another one" do
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@prc.should_not == @p.rb_proc_new
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end
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it "returns a Proc instance with #source_location == nil" do
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@prc.source_location.should == nil
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end
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end
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describe "rb_proc_arity" do
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it "returns the correct arity" do
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prc = Proc.new {|a,b,c|}
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@p.rb_proc_arity(prc).should == 3
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end
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end
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describe "rb_proc_call" do
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it "calls the Proc" do
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prc = Proc.new {|a,b| a * b }
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@p.rb_proc_call(prc, [6, 7]).should == 42
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end
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end
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end
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describe "C-API when calling Proc.new from a C function" do
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before :each do
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@p = CApiProcSpecs.new
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end
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# In the scenarios below: X -> Y means execution context X called to Y.
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# For example: Ruby -> C means a Ruby code called a C function.
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#
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# X -> Y <- X -> Z means execution context X called Y which returned to X,
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# then X called Z.
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# For example: C -> Ruby <- C -> Ruby means a C function called into Ruby
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# code which returned to C, then C called into Ruby code again.
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ruby_version_is ""..."2.7" do
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# Ruby -> C -> rb_funcall(Proc.new)
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it "returns the Proc passed by the Ruby code calling the C function" do
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prc = @p.rb_Proc_new(0) { :called }
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prc.call.should == :called
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end
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# Ruby -> C -> Ruby <- C -> rb_funcall(Proc.new)
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it "returns the Proc passed to the Ruby method when the C function calls other Ruby methods before calling Proc.new" do
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prc = @p.rb_Proc_new(1) { :called }
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prc.call.should == :called
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end
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end
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# Ruby -> C -> Ruby -> Proc.new
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it "raises an ArgumentError when the C function calls a Ruby method that calls Proc.new" do
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def @p.Proc_new() Proc.new end
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lambda { @p.rb_Proc_new(2) { :called } }.should raise_error(ArgumentError)
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end
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# Ruby -> C -> Ruby -> C -> rb_funcall(Proc.new)
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it "raises an ArgumentError when the C function calls a Ruby method and that method calls a C function that calls Proc.new" do
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def @p.redispatch() rb_Proc_new(0) end
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lambda { @p.rb_Proc_new(3) { :called } }.should raise_error(ArgumentError)
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end
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ruby_version_is ""..."2.7" do
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# Ruby -> C -> Ruby -> C (with new block) -> rb_funcall(Proc.new)
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it "returns the most recent Proc passed when the Ruby method called the C function" do
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prc = @p.rb_Proc_new(4) { :called }
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prc.call.should == :calling_with_block
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end
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# Ruby -> C -> Ruby -> C (with new block) <- Ruby <- C -> # rb_funcall(Proc.new)
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it "returns the Proc passed from the original Ruby call to the C function" do
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prc = @p.rb_Proc_new(5) { :called }
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prc.call.should == :called
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end
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end
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# Ruby -> C -> Ruby -> block_given?
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it "returns false from block_given? in a Ruby method called by the C function" do
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@p.rb_Proc_new(6).should be_false
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end
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end
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