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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
require_relative '../../shared/hash/key_error'
describe "Hash#fetch_values" do
before :each do
@hash = { a: 1, b: 2, c: 3 }
end
describe "with matched keys" do
it "returns the values for keys" do
@hash.fetch_values(:a).should == [1]
@hash.fetch_values(:a, :c).should == [1, 3]
end
it "returns the values for keys ordered in the order of the requested keys" do
@hash.fetch_values(:c, :a).should == [3, 1]
end
end
describe "with unmatched keys" do
it_behaves_like :key_error, -> obj, key { obj.fetch_values(key) }, Hash.new({ a: 5 })
it "returns the default value from block" do
@hash.fetch_values(:z) { |key| "`#{key}' is not found" }.should == ["`z' is not found"]
@hash.fetch_values(:a, :z) { |key| "`#{key}' is not found" }.should == [1, "`z' is not found"]
end
end
describe "without keys" do
it "returns an empty Array" do
@hash.fetch_values.should == []
end
end
end
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