diff options
Diffstat (limited to 'spec/ruby/core/enumerator/generator')
-rw-r--r-- | spec/ruby/core/enumerator/generator/each_spec.rb | 40 | ||||
-rw-r--r-- | spec/ruby/core/enumerator/generator/initialize_spec.rb | 26 |
2 files changed, 66 insertions, 0 deletions
diff --git a/spec/ruby/core/enumerator/generator/each_spec.rb b/spec/ruby/core/enumerator/generator/each_spec.rb new file mode 100644 index 0000000000..06395d0aa0 --- /dev/null +++ b/spec/ruby/core/enumerator/generator/each_spec.rb @@ -0,0 +1,40 @@ +require File.expand_path('../../../../spec_helper', __FILE__) + +describe "Enumerator::Generator#each" do + before :each do + @generator = Enumerator::Generator.new do |y, *args| + y << 3 << 2 << 1 + y << args unless args.empty? + :block_returned + end + end + + it "is an enumerable" do + @generator.should be_kind_of(Enumerable) + end + + it "supports enumeration with a block" do + r = [] + @generator.each { |v| r << v } + + r.should == [3, 2, 1] + end + + it "raises a LocalJumpError if no block given" do + lambda { @generator.each }.should raise_error(LocalJumpError) + end + + it "returns the block returned value" do + @generator.each {}.should equal(:block_returned) + end + + it "requires multiple arguments" do + Enumerator::Generator.instance_method(:each).arity.should < 0 + end + + it "appends given arguments to receiver.each" do + yields = [] + @generator.each(:each0, :each1) { |yielded| yields << yielded } + yields.should == [3, 2, 1, [:each0, :each1]] + end +end diff --git a/spec/ruby/core/enumerator/generator/initialize_spec.rb b/spec/ruby/core/enumerator/generator/initialize_spec.rb new file mode 100644 index 0000000000..85b0e04354 --- /dev/null +++ b/spec/ruby/core/enumerator/generator/initialize_spec.rb @@ -0,0 +1,26 @@ +# -*- encoding: us-ascii -*- + +require File.expand_path('../../../../spec_helper', __FILE__) + +describe "Enumerator::Generator#initialize" do + before :each do + @class = Enumerator::Generator + @uninitialized = @class.allocate + end + + it "is a private method" do + @class.should have_private_instance_method(:initialize, false) + end + + it "returns self when given a block" do + @uninitialized.send(:initialize) {}.should equal(@uninitialized) + end + + describe "on frozen instance" do + it "raises a RuntimeError" do + lambda { + @uninitialized.freeze.send(:initialize) {} + }.should raise_error(RuntimeError) + end + end +end |