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require_relative '../../spec_helper'
describe "Kernel#__dir__" do
it "returns the real name of the directory containing the currently-executing file" do
__dir__.should == File.realpath(File.dirname(__FILE__))
end
it "returns the expanded path of the directory when used in the main script" do
fixtures_dir = File.dirname(fixture(__FILE__, '__dir__.rb'))
Dir.chdir(fixtures_dir) do
ruby_exe("__dir__.rb").should == "__dir__.rb\n#{fixtures_dir}\n"
end
end
context "when used in eval with a given filename" do
it "returns File.dirname(filename)" do
eval("__dir__", nil, "foo.rb").should == "."
eval("__dir__", nil, "foo/bar.rb").should == "foo"
end
end
context "when used in eval with top level binding" do
it "returns nil" do
eval("__dir__", binding).should == nil
end
end
end
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