diff options
Diffstat (limited to 'spec/ruby/core/enumerable/any_spec.rb')
| -rw-r--r-- | spec/ruby/core/enumerable/any_spec.rb | 139 |
1 files changed, 99 insertions, 40 deletions
diff --git a/spec/ruby/core/enumerable/any_spec.rb b/spec/ruby/core/enumerable/any_spec.rb index 4a7511f649..4405d4740a 100644 --- a/spec/ruby/core/enumerable/any_spec.rb +++ b/spec/ruby/core/enumerable/any_spec.rb @@ -1,68 +1,66 @@ -require File.expand_path('../../../spec_helper', __FILE__) -require File.expand_path('../fixtures/classes', __FILE__) +require_relative '../../spec_helper' +require_relative 'fixtures/classes' describe "Enumerable#any?" do before :each do @enum = EnumerableSpecs::Numerous.new - @empty = EnumerableSpecs::Empty.new() - @enum1 = [0, 1, 2, -1] - @enum2 = [nil, false, true] + @empty = EnumerableSpecs::Empty.new + @enum1 = EnumerableSpecs::Numerous.new(0, 1, 2, -1) + @enum2 = EnumerableSpecs::Numerous.new(nil, false, true) end it "always returns false on empty enumeration" do - @empty.any?.should == false + @empty.should_not.any? @empty.any? { nil }.should == false - [].any?.should == false + [].should_not.any? [].any? { false }.should == false - {}.any?.should == false + {}.should_not.any? {}.any? { nil }.should == false end - it "raises an ArgumentError when any arguments provided" do - lambda { @enum.any?(Proc.new {}) }.should raise_error(ArgumentError) - lambda { @enum.any?(nil) }.should raise_error(ArgumentError) - lambda { @empty.any?(1) }.should raise_error(ArgumentError) - lambda { @enum1.any?(1) {} }.should raise_error(ArgumentError) - lambda { @enum2.any?(1, 2, 3) {} }.should raise_error(ArgumentError) + it "raises an ArgumentError when more than 1 argument is provided" do + -> { @enum.any?(1, 2, 3) }.should.raise(ArgumentError) + -> { [].any?(1, 2, 3) }.should.raise(ArgumentError) + -> { {}.any?(1, 2, 3) }.should.raise(ArgumentError) end it "does not hide exceptions out of #each" do - lambda { + -> { EnumerableSpecs::ThrowingEach.new.any? - }.should raise_error(RuntimeError) + }.should.raise(RuntimeError) - lambda { + -> { EnumerableSpecs::ThrowingEach.new.any? { false } - }.should raise_error(RuntimeError) + }.should.raise(RuntimeError) end describe "with no block" do it "returns true if any element is not false or nil" do - @enum.any?.should == true - @enum1.any?.should == true - @enum2.any?.should == true - EnumerableSpecs::Numerous.new(true).any?.should == true - EnumerableSpecs::Numerous.new('a','b','c').any?.should == true - EnumerableSpecs::Numerous.new('a','b','c', nil).any?.should == true - EnumerableSpecs::Numerous.new(1, nil, 2).any?.should == true - EnumerableSpecs::Numerous.new(1, false).any?.should == true - EnumerableSpecs::Numerous.new(false, nil, 1, false).any?.should == true - EnumerableSpecs::Numerous.new(false, 0, nil).any?.should == true + @enum.should.any? + @enum1.should.any? + @enum2.should.any? + EnumerableSpecs::Numerous.new(true).should.any? + EnumerableSpecs::Numerous.new('a','b','c').should.any? + EnumerableSpecs::Numerous.new('a','b','c', nil).should.any? + EnumerableSpecs::Numerous.new(1, nil, 2).should.any? + EnumerableSpecs::Numerous.new(1, false).should.any? + EnumerableSpecs::Numerous.new(false, nil, 1, false).should.any? + EnumerableSpecs::Numerous.new(false, 0, nil).should.any? end it "returns false if all elements are false or nil" do - EnumerableSpecs::Numerous.new(false).any?.should == false - EnumerableSpecs::Numerous.new(false, false).any?.should == false - EnumerableSpecs::Numerous.new(nil).any?.should == false - EnumerableSpecs::Numerous.new(nil, nil).any?.should == false - EnumerableSpecs::Numerous.new(nil, false, nil).any?.should == false + EnumerableSpecs::Numerous.new(false).should_not.any? + EnumerableSpecs::Numerous.new(false, false).should_not.any? + EnumerableSpecs::Numerous.new(nil).should_not.any? + EnumerableSpecs::Numerous.new(nil, nil).should_not.any? + EnumerableSpecs::Numerous.new(nil, false, nil).should_not.any? end it "gathers whole arrays as elements when each yields multiple" do multi = EnumerableSpecs::YieldsMultiWithFalse.new - multi.any?.should be_true + multi.any?.should == true end end @@ -79,7 +77,7 @@ describe "Enumerable#any?" do @enum2.any? { |i| i == nil }.should == true end - it "any? should return false if the block never returns other than false or nil" do + it "returns false if the block never returns other than false or nil" do @enum.any? { false }.should == false @enum.any? { nil }.should == false @@ -120,22 +118,83 @@ describe "Enumerable#any?" do end it "does not hide exceptions out of the block" do - lambda { + -> { @enum.any? { raise "from block" } - }.should raise_error(RuntimeError) + }.should.raise(RuntimeError) end it "gathers initial args as elements when each yields multiple" do multi = EnumerableSpecs::YieldsMulti.new - multi.any? {|e| e == 1 }.should be_true + yielded = [] + multi.any? { |e| yielded << e; false }.should == false + yielded.should == [1, 3, 6] end it "yields multiple arguments when each yields multiple" do multi = EnumerableSpecs::YieldsMulti.new yielded = [] - multi.any? {|e, i| yielded << [e, i] } - yielded.should == [[1, 2]] + multi.any? { |*args| yielded << args; false }.should == false + yielded.should == [[1, 2], [3, 4, 5], [6, 7, 8, 9]] + end + end + + describe 'when given a pattern argument' do + it "calls `===` on the pattern the return value" do + pattern = EnumerableSpecs::Pattern.new { |x| x == 2 } + @enum1.any?(pattern).should == true + pattern.yielded.should == [[0], [1], [2]] + end + + it "always returns false on empty enumeration" do + @empty.any?(Integer).should == false + [].any?(Integer).should == false + {}.any?(NilClass).should == false end + it "does not hide exceptions out of #each" do + -> { + EnumerableSpecs::ThrowingEach.new.any?(Integer) + }.should.raise(RuntimeError) + end + + it "returns true if the pattern ever returns a truthy value" do + @enum2.any?(NilClass).should == true + pattern = EnumerableSpecs::Pattern.new { |x| 42 } + @enum.any?(pattern).should == true + + [1, 42, 3].any?(pattern).should == true + + pattern = EnumerableSpecs::Pattern.new { |x| x == [:b, 2] } + {a: 1, b: 2}.any?(pattern).should == true + end + + it "returns false if the block never returns other than false or nil" do + pattern = EnumerableSpecs::Pattern.new { |x| nil } + @enum1.any?(pattern).should == false + pattern.yielded.should == [[0], [1], [2], [-1]] + + [1, 2, 3].any?(pattern).should == false + {a: 1}.any?(pattern).should == false + end + + it "does not hide exceptions out of pattern#===" do + pattern = EnumerableSpecs::Pattern.new { raise "from pattern" } + -> { + @enum.any?(pattern) + }.should.raise(RuntimeError) + end + + it "calls the pattern with gathered array when yielded with multiple arguments" do + multi = EnumerableSpecs::YieldsMulti.new + pattern = EnumerableSpecs::Pattern.new { false } + multi.any?(pattern).should == false + pattern.yielded.should == [[[1, 2]], [[3, 4, 5]], [[6, 7, 8, 9]]] + end + + it "ignores the block if there is an argument" do + -> { + EnumerableSpecs::Numerous.new(1, 2, 3, 4, 5).any?(String) { true }.should == false + }.should complain(/given block not used/) + end end end |
