I find myself wanting to do something like this, and I'm curious to
hear what others think of 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 alias there is a workaround, ideally I'd like hsh to reference the
previous value when inside that block : let(:hsh) { hsh.merge(zzz: 3)
} , but with the current implementation that gives infinite recursion.
Another way is to use a before block, but I don't like the mixing of
let and before in this case.
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
I don't want to use a different name, because I have shared examples
that reference it. I know there are ways to side step the issue.
Have you used something like this before? Would you consider it bad practice?
- Arne
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