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require 'spec_helper'
describe Configurate::Provider::YAML do
let(:settings) { {"toplevel" => "bar",
"some" => {
"nested" => { "some" => "lala", "setting" => "foo"}
}
} }
describe "#initialize" do
it "loads the file" do
file = "foobar.yml"
::YAML.should_receive(:load_file).with(file).and_return({})
described_class.new file
end
it "raises if the file is not found" do
::YAML.stub(:load_file).and_raise(Errno::ENOENT)
expect {
silence_stderr do
described_class.new "foo"
end
}.to raise_error Errno::ENOENT
end
context "with a namespace" do
it "looks in the file for that namespace" do
namespace = "some.nested"
::YAML.stub(:load_file).and_return(settings)
provider = described_class.new 'bla', namespace: namespace
provider.instance_variable_get(:@settings).should == settings['some']['nested']
end
it "raises if the namespace isn't found" do
::YAML.stub(:load_file).and_return({})
expect {
described_class.new 'bla', namespace: "bar"
}.to raise_error ArgumentError
end
it "works with an empty namespace in the file" do
::YAML.stub(:load_file).and_return({'foo' => {'bar' => nil}})
expect {
described_class.new 'bla', namespace: "foo.bar"
}.to_not raise_error ArgumentError
end
end
context "with required set to false" do
it "doesn't raise if a file isn't found" do
::YAML.stub(:load_file).and_raise(Errno::ENOENT)
expect {
described_class.new "not_me", required: false
}.not_to raise_error Errno::ENOENT
end
it "doesn't raise if a namespace isn't found" do
::YAML.stub(:load_file).and_return({})
expect {
described_class.new 'bla', namespace: "foo", required: false
}.not_to raise_error ArgumentError
end
end
end
describe "#lookup_path" do
before do
::YAML.stub(:load_file).and_return(settings)
@provider = described_class.new 'dummy'
end
it "looks up the whole nesting" do
@provider.lookup_path(["some", "nested", "some"]).should == settings["some"]["nested"]["some"]
end
it "returns nil if no setting is found" do
@provider.lookup_path(["not_me"]).should be_nil
end
end
end
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