360 lines
12 KiB
Ruby
360 lines
12 KiB
Ruby
require File.expand_path('../../spec_helper', __FILE__)
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require File.expand_path('../fixtures/super', __FILE__)
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describe "The super keyword" do
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it "calls the method on the calling class" do
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Super::S1::A.new.foo([]).should == ["A#foo","A#bar"]
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Super::S1::A.new.bar([]).should == ["A#bar"]
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Super::S1::B.new.foo([]).should == ["B#foo","A#foo","B#bar","A#bar"]
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Super::S1::B.new.bar([]).should == ["B#bar","A#bar"]
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end
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it "searches the full inheritance chain" do
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Super::S2::B.new.foo([]).should == ["B#foo","A#baz"]
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Super::S2::B.new.baz([]).should == ["A#baz"]
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Super::S2::C.new.foo([]).should == ["B#foo","C#baz","A#baz"]
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Super::S2::C.new.baz([]).should == ["C#baz","A#baz"]
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end
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it "searches class methods" do
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Super::S3::A.new.foo([]).should == ["A#foo"]
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Super::S3::A.foo([]).should == ["A.foo"]
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Super::S3::A.bar([]).should == ["A.bar","A.foo"]
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Super::S3::B.new.foo([]).should == ["A#foo"]
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Super::S3::B.foo([]).should == ["B.foo","A.foo"]
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Super::S3::B.bar([]).should == ["B.bar","A.bar","B.foo","A.foo"]
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end
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it "calls the method on the calling class including modules" do
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Super::MS1::A.new.foo([]).should == ["ModA#foo","ModA#bar"]
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Super::MS1::A.new.bar([]).should == ["ModA#bar"]
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Super::MS1::B.new.foo([]).should == ["B#foo","ModA#foo","ModB#bar","ModA#bar"]
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Super::MS1::B.new.bar([]).should == ["ModB#bar","ModA#bar"]
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end
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it "searches the full inheritance chain including modules" do
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Super::MS2::B.new.foo([]).should == ["ModB#foo","A#baz"]
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Super::MS2::B.new.baz([]).should == ["A#baz"]
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Super::MS2::C.new.baz([]).should == ["C#baz","A#baz"]
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Super::MS2::C.new.foo([]).should == ["ModB#foo","C#baz","A#baz"]
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end
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it "can resolve to different methods in an included module method" do
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Super::MultiSuperTargets::A.new.foo.should == :BaseA
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Super::MultiSuperTargets::B.new.foo.should == :BaseB
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end
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it "searches class methods including modules" do
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Super::MS3::A.new.foo([]).should == ["A#foo"]
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Super::MS3::A.foo([]).should == ["ModA#foo"]
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Super::MS3::A.bar([]).should == ["ModA#bar","ModA#foo"]
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Super::MS3::B.new.foo([]).should == ["A#foo"]
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Super::MS3::B.foo([]).should == ["B.foo","ModA#foo"]
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Super::MS3::B.bar([]).should == ["B.bar","ModA#bar","B.foo","ModA#foo"]
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end
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it "searches BasicObject from a module for methods defined there" do
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Super::IncludesFromBasic.new.__send__(:foobar).should == 43
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end
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it "searches BasicObject through another module for methods defined there" do
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Super::IncludesIntermediate.new.__send__(:foobar).should == 42
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end
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it "calls the correct method when the method visibility is modified" do
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Super::MS4::A.new.example.should == 5
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end
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it "calls the correct method when the superclass argument list is different from the subclass" do
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Super::S4::A.new.foo([]).should == ["A#foo"]
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Super::S4::B.new.foo([],"test").should == ["B#foo(a,test)", "A#foo"]
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end
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it "raises an error error when super method does not exist" do
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sup = Class.new
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sub_normal = Class.new(sup) do
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def foo
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super()
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end
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end
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sub_zsuper = Class.new(sup) do
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def foo
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super
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end
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end
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lambda {sub_normal.new.foo}.should raise_error(NoMethodError, /super/)
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lambda {sub_zsuper.new.foo}.should raise_error(NoMethodError, /super/)
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end
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it "uses given block even if arguments are passed explicitly" do
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c1 = Class.new do
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def m
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yield
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end
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end
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c2 = Class.new(c1) do
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def m(v)
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super()
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end
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end
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c2.new.m(:dump) { :value }.should == :value
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end
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it "calls the superclass method when in a block" do
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Super::S6.new.here.should == :good
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end
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it "calls the superclass method when initial method is defined_method'd" do
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Super::S7.new.here.should == :good
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end
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it "can call through a define_method multiple times (caching check)" do
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obj = Super::S7.new
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2.times do
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obj.here.should == :good
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end
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end
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it "supers up appropriate name even if used for multiple method names" do
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sup = Class.new do
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def a; "a"; end
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def b; "b"; end
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end
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sub = Class.new(sup) do
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[:a, :b].each do |name|
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define_method name do
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super()
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end
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end
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end
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sub.new.a.should == "a"
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sub.new.b.should == "b"
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sub.new.a.should == "a"
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end
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it "raises a RuntimeError when called with implicit arguments from a method defined with define_method" do
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super_class = Class.new do
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def a(arg)
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arg
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end
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end
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klass = Class.new super_class do
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define_method :a do |arg|
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super
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end
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end
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lambda { klass.new.a(:a_called) }.should raise_error(RuntimeError)
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end
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# Rubinius ticket github#157
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it "calls method_missing when a superclass method is not found" do
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Super::MM_B.new.is_a?(Hash).should == false
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end
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# Rubinius ticket github#180
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it "respects the original module a method is aliased from" do
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Super::Alias3.new.name3.should == [:alias2, :alias1]
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end
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it "sees the included version of a module a method is alias from" do
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Super::AliasWithSuper::Trigger.foo.should == [:b, :a]
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end
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it "find super from a singleton class" do
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obj = Super::SingletonCase::Foo.new
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def obj.foobar(array)
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array << :singleton
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super
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end
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obj.foobar([]).should == [:singleton, :foo, :base]
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end
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it "finds super on other objects if a singleton class aliased the method" do
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orig_obj = Super::SingletonAliasCase::Foo.new
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orig_obj.alias_on_singleton
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orig_obj.new_foobar([]).should == [:foo, :base]
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Super::SingletonAliasCase::Foo.new.foobar([]).should == [:foo, :base]
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end
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it "passes along modified rest args when they weren't originally empty" do
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Super::RestArgsWithSuper::B.new.a("bar").should == ["bar", "foo"]
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end
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it "passes along modified rest args when they were originally empty" do
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Super::RestArgsWithSuper::B.new.a.should == ["foo"]
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end
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it "invokes methods from a chain of anonymous modules" do
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Super::AnonymousModuleIncludedTwice.new.a([]).should == ["anon", "anon", "non-anon"]
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end
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it "without explicit arguments can accept a block but still pass the original arguments" do
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Super::ZSuperWithBlock::B.new.a.should == 14
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end
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it "passes along block via reference to method expecting a reference" do
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Super::ZSuperWithBlock::B.new.b.should == [14, 15]
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end
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it "passes along a block via reference to a method that yields" do
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Super::ZSuperWithBlock::B.new.c.should == 16
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end
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it "without explicit arguments passes optional arguments that have a default value" do
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Super::ZSuperWithOptional::B.new.m(1, 2).should == 14
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end
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it "without explicit arguments passes optional arguments that have a non-default value" do
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Super::ZSuperWithOptional::B.new.m(1, 2, 3).should == 3
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end
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it "without explicit arguments passes optional arguments that have a default value but were modified" do
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Super::ZSuperWithOptional::C.new.m(1, 2).should == 100
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end
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it "without explicit arguments passes optional arguments that have a non-default value but were modified" do
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Super::ZSuperWithOptional::C.new.m(1, 2, 3).should == 100
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end
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it "without explicit arguments passes rest arguments" do
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Super::ZSuperWithRest::B.new.m(1, 2, 3).should == [1, 2, 3]
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end
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it "without explicit arguments passes rest arguments including any modifications" do
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Super::ZSuperWithRest::B.new.m_modified(1, 2, 3).should == [1, 14, 3]
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end
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it "without explicit arguments passes arguments and rest arguments" do
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Super::ZSuperWithRestAndOthers::B.new.m(1, 2, 3, 4, 5).should == [3, 4, 5]
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end
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it "without explicit arguments passes arguments and rest arguments including any modifications" do
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Super::ZSuperWithRestAndOthers::B.new.m_modified(1, 2, 3, 4, 5).should == [3, 14, 5]
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end
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it "without explicit arguments that are '_'" do
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Super::ZSuperWithUnderscores::B.new.m(1, 2).should == [1, 2]
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end
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it "without explicit arguments that are '_' including any modifications" do
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Super::ZSuperWithUnderscores::B.new.m_modified(1, 2).should == [14, 2]
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end
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describe 'when using keyword arguments' do
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before :each do
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@req = Super::Keywords::RequiredArguments.new
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@opts = Super::Keywords::OptionalArguments.new
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@etc = Super::Keywords::PlaceholderArguments.new
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@req_and_opts = Super::Keywords::RequiredAndOptionalArguments.new
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@req_and_etc = Super::Keywords::RequiredAndPlaceholderArguments.new
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@opts_and_etc = Super::Keywords::OptionalAndPlaceholderArguments.new
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@req_and_opts_and_etc = Super::Keywords::RequiredAndOptionalAndPlaceholderArguments.new
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end
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it 'does not pass any arguments to the parent when none are given' do
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@etc.foo.should == {}
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end
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it 'passes only required arguments to the parent when no optional arguments are given' do
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[@req, @req_and_etc].each do |obj|
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obj.foo(a: 'a').should == {a: 'a'}
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end
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end
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it 'passes default argument values to the parent' do
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[@opts, @opts_and_etc].each do |obj|
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obj.foo.should == {b: 'b'}
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end
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[@req_and_opts, @opts_and_etc, @req_and_opts_and_etc].each do |obj|
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obj.foo(a: 'a').should == {a: 'a', b: 'b'}
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end
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end
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it 'passes any given arguments including optional keyword arguments to the parent' do
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[@etc, @req_and_opts, @req_and_etc, @opts_and_etc, @req_and_opts_and_etc].each do |obj|
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obj.foo(a: 'a', b: 'b').should == {a: 'a', b: 'b'}
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end
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[@etc, @req_and_etc, @opts_and_etc, @req_and_opts_and_etc].each do |obj|
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obj.foo(a: 'a', b: 'b', c: 'c').should == {a: 'a', b: 'b', c: 'c'}
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end
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end
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end
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describe 'when using regular and keyword arguments' do
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before :each do
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@req = Super::RegularAndKeywords::RequiredArguments.new
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@opts = Super::RegularAndKeywords::OptionalArguments.new
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@etc = Super::RegularAndKeywords::PlaceholderArguments.new
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@req_and_opts = Super::RegularAndKeywords::RequiredAndOptionalArguments.new
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@req_and_etc = Super::RegularAndKeywords::RequiredAndPlaceholderArguments.new
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@opts_and_etc = Super::RegularAndKeywords::OptionalAndPlaceholderArguments.new
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@req_and_opts_and_etc = Super::RegularAndKeywords::RequiredAndOptionalAndPlaceholderArguments.new
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end
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it 'passes only required regular arguments to the parent when no optional keyword arguments are given' do
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@etc.foo('a').should == ['a', {}]
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end
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it 'passes only required regular and keyword arguments to the parent when no optional keyword arguments are given' do
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[@req, @req_and_etc].each do |obj|
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obj.foo('a', b: 'b').should == ['a', {b: 'b'}]
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end
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end
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it 'passes default argument values to the parent' do
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[@opts, @opts_and_etc].each do |obj|
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obj.foo('a').should == ['a', {c: 'c'}]
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end
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[@req_and_opts, @opts_and_etc, @req_and_opts_and_etc].each do |obj|
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obj.foo('a', b: 'b').should == ['a', {b: 'b', c: 'c'}]
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end
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end
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it 'passes any given regular and keyword arguments including optional keyword arguments to the parent' do
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[@etc, @req_and_opts, @req_and_etc, @opts_and_etc, @req_and_opts_and_etc].each do |obj|
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obj.foo('a', b: 'b', c: 'c').should == ['a', {b: 'b', c: 'c'}]
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end
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[@etc, @req_and_etc, @opts_and_etc, @req_and_opts_and_etc].each do |obj|
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obj.foo('a', b: 'b', c: 'c', d: 'd').should == ['a', {b: 'b', c: 'c', d: 'd'}]
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end
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end
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end
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describe 'when using splat and keyword arguments' do
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before :each do
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@all = Super::SplatAndKeywords::AllArguments.new
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end
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it 'does not pass any arguments to the parent when none are given' do
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@all.foo.should == [[], {}]
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end
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it 'passes only splat arguments to the parent when no keyword arguments are given' do
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@all.foo('a').should == [['a'], {}]
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end
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it 'passes only keyword arguments to the parent when no splat arguments are given' do
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@all.foo(b: 'b').should == [[], {b: 'b'}]
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end
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it 'passes any given splat and keyword arguments to the parent' do
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@all.foo('a', b: 'b').should == [['a'], {b: 'b'}]
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end
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end
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end
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