553 lines
17 KiB
Ruby
553 lines
17 KiB
Ruby
require_relative '../spec_helper'
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require_relative 'fixtures/send'
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# Why so many fixed arg tests? JRuby and I assume other Ruby impls have
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# separate call paths for simple fixed arity methods. Testing up to five
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# will verify special and generic arity code paths for all impls.
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#
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# Method naming conventions:
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# M - Manditory Args
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# O - Optional Arg
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# R - Rest Arg
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# Q - Post Manditory Args
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specs = LangSendSpecs
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describe "Invoking a method" do
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describe "with zero arguments" do
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it "requires no arguments passed" do
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specs.fooM0.should == 100
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end
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it "raises ArgumentError if the method has a positive arity" do
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lambda {
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specs.fooM1
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}.should raise_error(ArgumentError)
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end
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end
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describe "with only mandatory arguments" do
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it "requires exactly the same number of passed values" do
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specs.fooM1(1).should == [1]
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specs.fooM2(1,2).should == [1,2]
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specs.fooM3(1,2,3).should == [1,2,3]
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specs.fooM4(1,2,3,4).should == [1,2,3,4]
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specs.fooM5(1,2,3,4,5).should == [1,2,3,4,5]
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end
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it "raises ArgumentError if the methods arity doesn't match" do
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lambda {
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specs.fooM1(1,2)
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}.should raise_error(ArgumentError)
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end
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end
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describe "with optional arguments" do
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it "uses the optional argument if none is is passed" do
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specs.fooM0O1.should == [1]
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end
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it "uses the passed argument if available" do
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specs.fooM0O1(2).should == [2]
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end
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it "raises ArgumentError if extra arguments are passed" do
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lambda {
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specs.fooM0O1(2,3)
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}.should raise_error(ArgumentError)
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end
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end
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describe "with mandatory and optional arguments" do
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it "uses the passed values in left to right order" do
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specs.fooM1O1(2).should == [2,1]
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end
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it "raises an ArgumentError if there are no values for the mandatory args" do
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lambda {
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specs.fooM1O1
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}.should raise_error(ArgumentError)
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end
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it "raises an ArgumentError if too many values are passed" do
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lambda {
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specs.fooM1O1(1,2,3)
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}.should raise_error(ArgumentError)
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end
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end
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describe "with a rest argument" do
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it "is an empty array if there are no additional arguments" do
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specs.fooM0R().should == []
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specs.fooM1R(1).should == [1, []]
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end
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it "gathers unused arguments" do
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specs.fooM0R(1).should == [1]
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specs.fooM1R(1,2).should == [1, [2]]
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end
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end
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it "with a block makes it available to yield" do
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specs.oneb(10) { 200 }.should == [10,200]
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end
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it "with a block converts the block to a Proc" do
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prc = specs.makeproc { "hello" }
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prc.should be_kind_of(Proc)
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prc.call.should == "hello"
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end
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it "with an object as a block uses 'to_proc' for coercion" do
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o = LangSendSpecs::ToProc.new(:from_to_proc)
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specs.makeproc(&o).call.should == :from_to_proc
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specs.yield_now(&o).should == :from_to_proc
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end
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it "raises a SyntaxError with both a literal block and an object as block" do
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lambda {
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eval "specs.oneb(10, &l){ 42 }"
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}.should raise_error(SyntaxError)
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end
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it "with same names as existing variables is ok" do
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foobar = 100
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def foobar; 200; end
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foobar.should == 100
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foobar().should == 200
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end
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it "with splat operator makes the object the direct arguments" do
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a = [1,2,3]
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specs.fooM3(*a).should == [1,2,3]
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end
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it "without parentheses works" do
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(specs.fooM3 1,2,3).should == [1,2,3]
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end
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it "with a space separating method name and parenthesis treats expression in parenthesis as first argument" do
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specs.weird_parens().should == "55"
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end
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describe "allows []=" do
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before :each do
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@obj = LangSendSpecs::AttrSet.new
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end
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it "with *args in the [] expanded to individual arguments" do
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ary = [2,3]
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(@obj[1, *ary] = 4).should == 4
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@obj.result.should == [1,2,3,4]
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end
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it "with multiple *args" do
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ary = [2,3]
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post = [4,5]
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(@obj[1, *ary] = *post).should == [4,5]
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@obj.result.should == [1,2,3,[4,5]]
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end
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it "with multiple *args and does not unwrap the last splat" do
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ary = [2,3]
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post = [4]
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(@obj[1, *ary] = *post).should == [4]
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@obj.result.should == [1,2,3,[4]]
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end
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it "with a *args and multiple rhs args" do
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ary = [2,3]
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(@obj[1, *ary] = 4, 5).should == [4,5]
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@obj.result.should == [1,2,3,[4,5]]
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end
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end
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it "passes literal hashes without curly braces as the last parameter" do
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specs.fooM3('abc', 456, 'rbx' => 'cool',
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'specs' => 'fail sometimes', 'oh' => 'weh').should == \
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['abc', 456, {'rbx' => 'cool', 'specs' => 'fail sometimes', 'oh' => 'weh'}]
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end
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it "passes a literal hash without curly braces or parens" do
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(specs.fooM3 'abc', 456, 'rbx' => 'cool',
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'specs' => 'fail sometimes', 'oh' => 'weh').should == \
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['abc', 456, { 'rbx' => 'cool', 'specs' => 'fail sometimes', 'oh' => 'weh'}]
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end
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it "allows to literal hashes without curly braces as the only parameter" do
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specs.fooM1(rbx: :cool, specs: :fail_sometimes).should ==
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[{ rbx: :cool, specs: :fail_sometimes }]
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(specs.fooM1 rbx: :cool, specs: :fail_sometimes).should ==
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[{ rbx: :cool, specs: :fail_sometimes }]
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end
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describe "when the method is not available" do
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it "invokes method_missing if it is defined" do
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o = LangSendSpecs::MethodMissing.new
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o.not_there(1,2)
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o.message.should == :not_there
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o.args.should == [1,2]
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end
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it "raises NameError if invoked as a vcall" do
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lambda { no_such_method }.should raise_error NameError
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end
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it "should omit the method_missing call from the backtrace for NameError" do
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lambda { no_such_method }.should raise_error { |e| e.backtrace.first.should_not include("method_missing") }
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end
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it "raises NoMethodError if invoked as an unambiguous method call" do
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lambda { no_such_method() }.should raise_error NoMethodError
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lambda { no_such_method(1,2,3) }.should raise_error NoMethodError
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end
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it "should omit the method_missing call from the backtrace for NoMethodError" do
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lambda { no_such_method() }.should raise_error { |e| e.backtrace.first.should_not include("method_missing") }
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end
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end
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end
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describe "Invoking a public setter method" do
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it 'returns the set value' do
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klass = Class.new do
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def foobar=(*)
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1
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end
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end
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(klass.new.foobar = 'bar').should == 'bar'
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(klass.new.foobar = 'bar', 'baz').should == ["bar", "baz"]
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end
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end
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describe "Invoking []= methods" do
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it 'returns the set value' do
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klass = Class.new do
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def []=(*)
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1
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end
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end
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(klass.new[33] = 'bar').should == 'bar'
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(klass.new[33] = 'bar', 'baz').should == ['bar', 'baz']
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(klass.new[33, 34] = 'bar', 'baz').should == ['bar', 'baz']
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end
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end
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describe "Invoking a private setter method" do
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describe "permits self as a receiver" do
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it "for normal assignment" do
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receiver = LangSendSpecs::PrivateSetter.new
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receiver.call_self_foo_equals(42)
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receiver.foo.should == 42
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end
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it "for multiple assignment" do
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receiver = LangSendSpecs::PrivateSetter.new
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receiver.call_self_foo_equals_masgn(42)
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receiver.foo.should == 42
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end
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end
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end
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describe "Invoking a private getter method" do
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it "does not permit self as a receiver" do
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receiver = LangSendSpecs::PrivateGetter.new
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lambda { receiver.call_self_foo }.should raise_error(NoMethodError)
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lambda { receiver.call_self_foo_or_equals(6) }.should raise_error(NoMethodError)
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end
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end
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describe "Invoking a method" do
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describe "with required args after the rest arguments" do
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it "binds the required arguments first" do
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specs.fooM0RQ1(1).should == [[], 1]
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specs.fooM0RQ1(1,2).should == [[1], 2]
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specs.fooM0RQ1(1,2,3).should == [[1,2], 3]
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specs.fooM1RQ1(1,2).should == [1, [], 2]
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specs.fooM1RQ1(1,2,3).should == [1, [2], 3]
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specs.fooM1RQ1(1,2,3,4).should == [1, [2, 3], 4]
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specs.fooM1O1RQ1(1,2).should == [1, 9, [], 2]
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specs.fooM1O1RQ1(1,2,3).should == [1, 2, [], 3]
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specs.fooM1O1RQ1(1,2,3,4).should == [1, 2, [3], 4]
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specs.fooM1O1RQ2(1,2,3).should == [1, 9, [], 2, 3]
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specs.fooM1O1RQ2(1,2,3,4).should == [1, 2, [], 3, 4]
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specs.fooM1O1RQ2(1,2,3,4,5).should == [1, 2, [3], 4, 5]
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end
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end
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describe "with mandatory arguments after optional arguments" do
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it "binds the required arguments first" do
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specs.fooO1Q1(0,1).should == [0,1]
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specs.fooO1Q1(2).should == [1,2]
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specs.fooM1O1Q1(2,3,4).should == [2,3,4]
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specs.fooM1O1Q1(1,3).should == [1,2,3]
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specs.fooM2O1Q1(1,2,4).should == [1,2,3,4]
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specs.fooM2O2Q1(1,2,3,4,5).should == [1,2,3,4,5]
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specs.fooM2O2Q1(1,2,3,5).should == [1,2,3,4,5]
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specs.fooM2O2Q1(1,2,5).should == [1,2,3,4,5]
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specs.fooO4Q1(1,2,3,4,5).should == [1,2,3,4,5]
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specs.fooO4Q1(1,2,3,5).should == [1,2,3,4,5]
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specs.fooO4Q1(1,2,5).should == [1,2,3,4,5]
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specs.fooO4Q1(1,5).should == [1,2,3,4,5]
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specs.fooO4Q1(5).should == [1,2,3,4,5]
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specs.fooO4Q2(1,2,3,4,5,6).should == [1,2,3,4,5,6]
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specs.fooO4Q2(1,2,3,5,6).should == [1,2,3,4,5,6]
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specs.fooO4Q2(1,2,5,6).should == [1,2,3,4,5,6]
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specs.fooO4Q2(1,5,6).should == [1,2,3,4,5,6]
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specs.fooO4Q2(5,6).should == [1,2,3,4,5,6]
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end
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end
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it "with .() invokes #call" do
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q = proc { |z| z }
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q.(1).should == 1
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obj = mock("paren call")
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obj.should_receive(:call).and_return(:called)
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obj.().should == :called
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end
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it "allows a vestigial trailing ',' in the arguments" do
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specs.fooM1(1,).should == [1]
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end
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it "with splat operator attempts to coerce it to an Array if the object respond_to?(:to_a)" do
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ary = [2,3,4]
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obj = mock("to_a")
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obj.should_receive(:to_a).and_return(ary).twice
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specs.fooM0R(*obj).should == ary
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specs.fooM1R(1,*obj).should == [1, ary]
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end
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it "with splat operator * and non-Array value uses value unchanged if it does not respond_to?(:to_ary)" do
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obj = Object.new
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obj.should_not respond_to(:to_a)
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specs.fooM0R(*obj).should == [obj]
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specs.fooM1R(1,*obj).should == [1, [obj]]
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end
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it "accepts additional arguments after splat expansion" do
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a = [1,2]
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specs.fooM4(*a,3,4).should == [1,2,3,4]
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specs.fooM4(0,*a,3).should == [0,1,2,3]
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end
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it "does not expand final array arguments after a splat expansion" do
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a = [1, 2]
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specs.fooM3(*a, [3, 4]).should == [1, 2, [3, 4]]
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end
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it "accepts final explicit literal Hash arguments after the splat" do
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a = [1, 2]
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specs.fooM0RQ1(*a, { a: 1 }).should == [[1, 2], { a: 1 }]
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end
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it "accepts final implicit literal Hash arguments after the splat" do
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a = [1, 2]
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specs.fooM0RQ1(*a, a: 1).should == [[1, 2], { a: 1 }]
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end
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it "accepts final Hash arguments after the splat" do
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a = [1, 2]
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b = { a: 1 }
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specs.fooM0RQ1(*a, b).should == [[1, 2], { a: 1 }]
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end
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it "accepts mandatory and explicit literal Hash arguments after the splat" do
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a = [1, 2]
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specs.fooM0RQ2(*a, 3, { a: 1 }).should == [[1, 2], 3, { a: 1 }]
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end
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it "accepts mandatory and implicit literal Hash arguments after the splat" do
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a = [1, 2]
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specs.fooM0RQ2(*a, 3, a: 1).should == [[1, 2], 3, { a: 1 }]
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end
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it "accepts mandatory and Hash arguments after the splat" do
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a = [1, 2]
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b = { a: 1 }
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specs.fooM0RQ2(*a, 3, b).should == [[1, 2], 3, { a: 1 }]
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end
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it "converts a final splatted explicit Hash to an Array" do
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a = [1, 2]
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specs.fooR(*a, 3, *{ a: 1 }).should == [1, 2, 3, [:a, 1]]
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end
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it "calls #to_a to convert a final splatted Hash object to an Array" do
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a = [1, 2]
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b = { a: 1 }
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b.should_receive(:to_a).and_return([:a, 1])
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specs.fooR(*a, 3, *b).should == [1, 2, 3, :a, 1]
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end
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it "accepts multiple splat expansions in the same argument list" do
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a = [1,2,3]
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b = 7
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c = mock("pseudo-array")
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c.should_receive(:to_a).and_return([0,0])
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d = [4,5]
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specs.rest_len(*a,*d,6,*b).should == 7
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specs.rest_len(*a,*a,*a).should == 9
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specs.rest_len(0,*a,4,*5,6,7,*c,-1).should == 11
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end
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it "expands the Array elements from the splat after executing the arguments and block if no other arguments follow the splat" do
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def self.m(*args, &block)
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[args, block]
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end
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args = [1, nil]
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m(*args, &args.pop).should == [[1], nil]
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args = [1, nil]
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order = []
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m(*(order << :args; args), &(order << :block; args.pop)).should == [[1], nil]
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order.should == [:args, :block]
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end
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it "evaluates the splatted arguments before the block if there are other arguments after the splat" do
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def self.m(*args, &block)
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[args, block]
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end
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args = [1, nil]
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m(*args, 2, &args.pop).should == [[1, nil, 2], nil]
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end
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it "expands an array to arguments grouped in parentheses" do
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specs.destructure2([40,2]).should == 42
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end
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it "expands an array to arguments grouped in parentheses and ignores any rest arguments in the array" do
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specs.destructure2([40,2,84]).should == 42
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end
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it "expands an array to arguments grouped in parentheses and sets not specified arguments to nil" do
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specs.destructure2b([42]).should == [42, nil]
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end
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it "expands an array to arguments grouped in parentheses which in turn takes rest arguments" do
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specs.destructure4r([1, 2, 3]).should == [1, 2, [], 3, nil]
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specs.destructure4r([1, 2, 3, 4]).should == [1, 2, [], 3, 4]
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specs.destructure4r([1, 2, 3, 4, 5]).should == [1, 2, [3], 4, 5]
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end
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it "with optional argument(s), expands an array to arguments grouped in parentheses" do
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specs.destructure4o(1, [2, 3]).should == [1, 1, nil, [2, 3]]
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specs.destructure4o(1, [], 2).should == [1, nil, nil, 2]
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specs.destructure4os(1, [2, 3]).should == [1, 2, [3]]
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specs.destructure5o(1, [2, 3]).should == [1, 2, 1, nil, [2, 3]]
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specs.destructure7o(1, [2, 3]).should == [1, 2, 1, nil, 2, 3]
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specs.destructure7b(1, [2, 3]) do |(a,*b,c)|
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[a, c]
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end.should == [1, 3]
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end
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describe "new-style hash arguments" do
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describe "as the only parameter" do
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it "passes without curly braces" do
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specs.fooM1(rbx: 'cool', specs: :fail_sometimes, non_sym: 1234).should ==
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|
[{ rbx: 'cool', specs: :fail_sometimes, non_sym: 1234 }]
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|
end
|
|
|
|
it "passes without curly braces or parens" do
|
|
(specs.fooM1 rbx: 'cool', specs: :fail_sometimes, non_sym: 1234).should ==
|
|
[{ rbx: 'cool', specs: :fail_sometimes, non_sym: 1234 }]
|
|
end
|
|
|
|
it "handles a hanging comma without curly braces" do
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|
specs.fooM1(abc: 123,).should == [{abc: 123}]
|
|
specs.fooM1(rbx: 'cool', specs: :fail_sometimes, non_sym: 1234,).should ==
|
|
[{ rbx: 'cool', specs: :fail_sometimes, non_sym: 1234 }]
|
|
end
|
|
end
|
|
|
|
describe "as the last parameter" do
|
|
it "passes without curly braces" do
|
|
specs.fooM3('abc', 123, rbx: 'cool', specs: :fail_sometimes, non_sym: 1234).should ==
|
|
['abc', 123, { rbx: 'cool', specs: :fail_sometimes, non_sym: 1234 }]
|
|
end
|
|
|
|
it "passes without curly braces or parens" do
|
|
(specs.fooM3 'abc', 123, rbx: 'cool', specs: :fail_sometimes, non_sym: 1234).should ==
|
|
['abc', 123, { rbx: 'cool', specs: :fail_sometimes, non_sym: 1234 }]
|
|
end
|
|
|
|
it "handles a hanging comma without curly braces" do
|
|
specs.fooM3('abc', 123, abc: 123,).should == ['abc', 123, {abc: 123}]
|
|
specs.fooM3('abc', 123, rbx: 'cool', specs: :fail_sometimes, non_sym: 1234,).should ==
|
|
['abc', 123, { rbx: 'cool', specs: :fail_sometimes, non_sym: 1234 }]
|
|
end
|
|
end
|
|
end
|
|
|
|
describe "mixed new- and old-style hash arguments" do
|
|
describe "as the only parameter" do
|
|
it "passes without curly braces" do
|
|
specs.fooM1(rbx: 'cool', specs: :fail_sometimes, non_sym: 1234).should ==
|
|
[{ rbx: 'cool', specs: :fail_sometimes, non_sym: 1234 }]
|
|
end
|
|
|
|
it "passes without curly braces or parens" do
|
|
(specs.fooM1 rbx: 'cool', specs: :fail_sometimes, non_sym: 1234).should ==
|
|
[{ rbx: 'cool', specs: :fail_sometimes, non_sym: 1234 }]
|
|
end
|
|
|
|
it "handles a hanging comma without curly braces" do
|
|
specs.fooM1(rbx: 'cool', specs: :fail_sometimes, non_sym: 1234,).should ==
|
|
[{ rbx: 'cool', specs: :fail_sometimes, non_sym: 1234 }]
|
|
end
|
|
end
|
|
|
|
describe "as the last parameter" do
|
|
it "passes without curly braces" do
|
|
specs.fooM3('abc', 123, rbx: 'cool', specs: :fail_sometimes, non_sym: 1234).should ==
|
|
['abc', 123, { rbx: 'cool', specs: :fail_sometimes, non_sym: 1234 }]
|
|
end
|
|
|
|
it "passes without curly braces or parens" do
|
|
(specs.fooM3 'abc', 123, rbx: 'cool', specs: :fail_sometimes, non_sym: 1234).should ==
|
|
['abc', 123, { rbx: 'cool', specs: :fail_sometimes, non_sym: 1234 }]
|
|
end
|
|
|
|
it "handles a hanging comma without curly braces" do
|
|
specs.fooM3('abc', 123, rbx: 'cool', specs: :fail_sometimes, non_sym: 1234,).should ==
|
|
['abc', 123, { rbx: 'cool', specs: :fail_sometimes, non_sym: 1234 }]
|
|
end
|
|
end
|
|
end
|
|
|
|
end
|
|
|
|
describe "allows []= with arguments after splat" do
|
|
before :each do
|
|
@obj = LangSendSpecs::Attr19Set.new
|
|
@ary = ["a"]
|
|
end
|
|
|
|
it "with *args in the [] and post args" do
|
|
@obj[1,*@ary,123] = 2
|
|
@obj.result.should == [1, "a", 123, 2]
|
|
end
|
|
end
|