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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "Data#hash" do
it "returns the same integer for objects with the same content" do
a = DataSpecs::Measure.new(42, "km")
b = DataSpecs::Measure.new(42, "km")
a.hash.should == b.hash
a.hash.should be_an_instance_of(Integer)
end
it "returns different hashes for objects with different values" do
a = DataSpecs::Measure.new(42, "km")
b = DataSpecs::Measure.new(42, "ml")
a.hash.should_not == b.hash
a = DataSpecs::Measure.new(42, "km")
b = DataSpecs::Measure.new(13, "km")
a.hash.should_not == b.hash
end
it "returns different hashes for different classes" do
Data.define(:x).new(1).hash.should != Data.define(:x).new(1).hash
end
end
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