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1d15d5f080
* Other ruby implementations use the spec/ruby directory. [Misc #13792] [ruby-core:82287] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
121 lines
3.6 KiB
Ruby
121 lines
3.6 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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require File.expand_path('../fixtures/classes', __FILE__)
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describe "Enumerable#all?" do
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before :each do
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@enum = EnumerableSpecs::Numerous.new
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@empty = EnumerableSpecs::Empty.new()
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@enum1 = [0, 1, 2, -1]
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@enum2 = [nil, false, true]
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end
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it "always returns true on empty enumeration" do
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@empty.all?.should == true
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@empty.all? { nil }.should == true
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[].all?.should == true
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[].all? { false }.should == true
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{}.all?.should == true
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{}.all? { nil }.should == true
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end
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it "does not hide exceptions out of #each" do
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lambda {
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EnumerableSpecs::ThrowingEach.new.all?
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}.should raise_error(RuntimeError)
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lambda {
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EnumerableSpecs::ThrowingEach.new.all? { false }
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}.should raise_error(RuntimeError)
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end
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describe "with no block" do
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it "returns true if no elements are false or nil" do
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@enum.all?.should == true
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@enum1.all?.should == true
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@enum2.all?.should == false
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EnumerableSpecs::Numerous.new('a','b','c').all?.should == true
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EnumerableSpecs::Numerous.new(0, "x", true).all?.should == true
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end
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it "returns false if there are false or nil elements" do
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EnumerableSpecs::Numerous.new(false).all?.should == false
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EnumerableSpecs::Numerous.new(false, false).all?.should == false
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EnumerableSpecs::Numerous.new(nil).all?.should == false
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EnumerableSpecs::Numerous.new(nil, nil).all?.should == false
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EnumerableSpecs::Numerous.new(1, nil, 2).all?.should == false
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EnumerableSpecs::Numerous.new(0, "x", false, true).all?.should == false
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@enum2.all?.should == false
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end
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it "gathers whole arrays as elements when each yields multiple" do
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multi = EnumerableSpecs::YieldsMultiWithFalse.new
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multi.all?.should be_true
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end
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end
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describe "with block" do
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it "returns true if the block never returns false or nil" do
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@enum.all? { true }.should == true
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@enum1.all?{ |o| o < 5 }.should == true
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@enum1.all?{ |o| 5 }.should == true
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end
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it "returns false if the block ever returns false or nil" do
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@enum.all? { false }.should == false
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@enum.all? { nil }.should == false
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@enum1.all?{ |o| o > 2 }.should == false
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EnumerableSpecs::Numerous.new.all? { |i| i > 5 }.should == false
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EnumerableSpecs::Numerous.new.all? { |i| i == 3 ? nil : true }.should == false
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end
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it "stops iterating once the return value is determined" do
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yielded = []
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EnumerableSpecs::Numerous.new(:one, :two, :three).all? do |e|
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yielded << e
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false
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end.should == false
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yielded.should == [:one]
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yielded = []
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EnumerableSpecs::Numerous.new(true, true, false, true).all? do |e|
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yielded << e
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e
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end.should == false
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yielded.should == [true, true, false]
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yielded = []
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EnumerableSpecs::Numerous.new(1, 2, 3, 4, 5).all? do |e|
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yielded << e
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e
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end.should == true
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yielded.should == [1, 2, 3, 4, 5]
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end
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it "does not hide exceptions out of the block" do
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lambda {
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@enum.all? { raise "from block" }
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}.should raise_error(RuntimeError)
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end
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it "gathers initial args as elements when each yields multiple" do
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multi = EnumerableSpecs::YieldsMulti.new
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multi.all? {|e| !(Array === e) }.should be_true
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end
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it "yields multiple arguments when each yields multiple" do
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multi = EnumerableSpecs::YieldsMulti.new
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yielded = []
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multi.all? {|e, i| yielded << [e, i] }
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yielded.should == [[1, 2], [3, 4], [6, 7]]
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end
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end
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end
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