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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/common', __FILE__)
describe "Dir.foreach" do
before :all do
DirSpecs.create_mock_dirs
end
after :all do
DirSpecs.delete_mock_dirs
end
it "yields all names in an existing directory to the provided block" do
a, b = [], []
Dir.foreach(DirSpecs.mock_dir) {|f| a << f}
Dir.foreach("#{DirSpecs.mock_dir}/deeply/nested") {|f| b << f}
a.sort.should == DirSpecs.expected_paths
b.sort.should == %w|. .. .dotfile.ext directory|
end
it "returns nil when successful" do
Dir.foreach(DirSpecs.mock_dir) {|f| f}.should == nil
end
it "calls #to_path on non-String arguments" do
p = mock('path')
p.should_receive(:to_path).and_return(DirSpecs.mock_dir)
Dir.foreach(p).to_a
end
it "raises a SystemCallError if passed a nonexistent directory" do
lambda { Dir.foreach(DirSpecs.nonexistent) {} }.should raise_error(SystemCallError)
end
it "returns an Enumerator if no block given" do
Dir.foreach(DirSpecs.mock_dir).should be_an_instance_of(Enumerator)
Dir.foreach(DirSpecs.mock_dir).to_a.sort.should == DirSpecs.expected_paths
end
describe "when no block is given" do
it "returns an Enumerator" do
Dir.foreach(DirSpecs.mock_dir).should be_an_instance_of(Enumerator)
Dir.foreach(DirSpecs.mock_dir).to_a.sort.should == DirSpecs.expected_paths
end
describe "returned Enumerator" do
describe "size" do
it "should return nil" do
Dir.foreach(DirSpecs.mock_dir).size.should == nil
end
end
end
end
end
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