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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "Data#with" do
it "returns self if given no arguments" do
data = DataSpecs::Measure.new(amount: 42, unit: "km")
data = data.with.should.equal?(data)
end
it "accepts keyword arguments" do
data = DataSpecs::Measure.new(amount: 42, unit: "km")
data = data.with(amount: 4, unit: "m")
data.amount.should == 4
data.unit.should == "m"
end
it "accepts String keyword arguments" do
data = DataSpecs::Measure.new(amount: 42, unit: "km")
data = data.with("amount" => 4, "unit" => "m")
data.amount.should == 4
data.unit.should == "m"
end
it "raises ArgumentError if no keyword arguments are given" do
data = DataSpecs::Measure.new(amount: 42, unit: "km")
-> {
data.with(4, "m")
}.should raise_error(ArgumentError, "wrong number of arguments (given 2, expected 0)")
end
end
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