I find myself wanting to do something like this, and I'm curious to hear
other opinions on this pattern.
describe "a hash with two values" do
let(:hsh) {{ xxx: 1, yyy: 2 }}
context "with a third value added" do
alias _hsh hsh
let(:hsh) { _hsh.merge(zzz: 3) }
it "should contain all three values" do
hsh.should == { xxx:1, yyy:2, zzz:3 }
end
end
end
The alternative would be to use a before block, but I dislike the mixing of
let and before in this case. On the other hand the alias doesn't look that
clean either.
describe "a hash with two values" do
let(:hsh) {{ xxx: 1, yyy: 2 }}
context "with a third value added" do
before { hsh.merge!(zzz: 3) }
it "should contain all three values" do
hsh.should == { xxx:1, yyy:2, zzz:3 }
end
end
end
Ideally I'd like to be able to simply reference the previous implementation
when in the defining block, let(:hsh) { hsh.merge(zzz:3) }.
Are there better ways to do this? Would you consider this an anti-pattern?
- Arne
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