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36 lines
1.3 KiB
Ruby
36 lines
1.3 KiB
Ruby
require_relative '../../spec_helper'
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require_relative 'fixtures/classes'
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describe "Method#curry" do
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it "returns a curried proc" do
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x = Object.new
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def x.foo(a,b,c); [a,b,c]; end
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c = x.method(:foo).curry
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c.should be_kind_of(Proc)
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c.call(1).call(2, 3).should == [1,2,3]
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end
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describe "with optional arity argument" do
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before(:each) do
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@obj = MethodSpecs::Methods.new
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end
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it "returns a curried proc when given correct arity" do
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@obj.method(:one_req).curry(1).should be_kind_of(Proc)
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@obj.method(:zero_with_splat).curry(100).should be_kind_of(Proc)
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@obj.method(:two_req_with_splat).curry(2).should be_kind_of(Proc)
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end
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it "raises ArgumentError when the method requires less arguments than the given arity" do
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-> { @obj.method(:zero).curry(1) }.should raise_error(ArgumentError)
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-> { @obj.method(:one_req_one_opt).curry(3) }.should raise_error(ArgumentError)
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-> { @obj.method(:two_req_one_opt_with_block).curry(4) }.should raise_error(ArgumentError)
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end
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it "raises ArgumentError when the method requires more arguments than the given arity" do
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-> { @obj.method(:two_req_with_splat).curry(1) }.should raise_error(ArgumentError)
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-> { @obj.method(:one_req).curry(0) }.should raise_error(ArgumentError)
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end
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end
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end
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