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96 lines
3.1 KiB
Ruby
96 lines
3.1 KiB
Ruby
require_relative '../fixtures/common'
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describe :proc_call, shared: true do
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it "invokes self" do
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Proc.new { "test!" }.send(@method).should == "test!"
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-> { "test!" }.send(@method).should == "test!"
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proc { "test!" }.send(@method).should == "test!"
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end
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it "sets self's parameters to the given values" do
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Proc.new { |a, b| a + b }.send(@method, 1, 2).should == 3
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Proc.new { |*args| args }.send(@method, 1, 2, 3, 4).should == [1, 2, 3, 4]
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Proc.new { |_, *args| args }.send(@method, 1, 2, 3).should == [2, 3]
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-> a, b { a + b }.send(@method, 1, 2).should == 3
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-> *args { args }.send(@method, 1, 2, 3, 4).should == [1, 2, 3, 4]
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-> _, *args { args }.send(@method, 1, 2, 3).should == [2, 3]
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proc { |a, b| a + b }.send(@method, 1, 2).should == 3
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proc { |*args| args }.send(@method, 1, 2, 3, 4).should == [1, 2, 3, 4]
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proc { |_, *args| args }.send(@method, 1, 2, 3).should == [2, 3]
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end
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end
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describe :proc_call_on_proc_new, shared: true do
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it "replaces missing arguments with nil" do
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Proc.new { |a, b| [a, b] }.send(@method).should == [nil, nil]
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Proc.new { |a, b| [a, b] }.send(@method, 1).should == [1, nil]
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end
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it "silently ignores extra arguments" do
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Proc.new { |a, b| a + b }.send(@method, 1, 2, 5).should == 3
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end
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it "auto-explodes a single Array argument" do
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p = Proc.new { |a, b| [a, b] }
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p.send(@method, 1, 2).should == [1, 2]
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p.send(@method, [1, 2]).should == [1, 2]
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p.send(@method, [1, 2, 3]).should == [1, 2]
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p.send(@method, [1, 2, 3], 4).should == [[1, 2, 3], 4]
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end
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end
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describe :proc_call_on_proc_or_lambda, shared: true do
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it "ignores excess arguments when self is a proc" do
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a = proc {|x| x}.send(@method, 1, 2)
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a.should == 1
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a = proc {|x| x}.send(@method, 1, 2, 3)
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a.should == 1
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end
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it "will call #to_ary on argument and return self if return is nil" do
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argument = ProcSpecs::ToAryAsNil.new
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result = proc { |x, _| x }.send(@method, argument)
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result.should == argument
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end
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it "substitutes nil for missing arguments when self is a proc" do
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proc {|x,y| [x,y]}.send(@method).should == [nil,nil]
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a = proc {|x,y| [x, y]}.send(@method, 1)
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a.should == [1,nil]
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end
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it "raises an ArgumentError on excess arguments when self is a lambda" do
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-> {
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-> x { x }.send(@method, 1, 2)
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}.should raise_error(ArgumentError)
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-> {
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-> x { x }.send(@method, 1, 2, 3)
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}.should raise_error(ArgumentError)
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end
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it "raises an ArgumentError on missing arguments when self is a lambda" do
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-> {
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-> x { x }.send(@method)
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}.should raise_error(ArgumentError)
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-> {
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-> x, y { [x,y] }.send(@method, 1)
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}.should raise_error(ArgumentError)
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end
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it "treats a single Array argument as a single argument when self is a lambda" do
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-> a { a }.send(@method, [1, 2]).should == [1, 2]
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-> a, b { [a, b] }.send(@method, [1, 2], 3).should == [[1,2], 3]
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end
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it "treats a single Array argument as a single argument when self is a proc" do
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proc { |a| a }.send(@method, [1, 2]).should == [1, 2]
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proc { |a, b| [a, b] }.send(@method, [1, 2], 3).should == [[1,2], 3]
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end
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end
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