This isn't specific to RSpec, but is hopefully on-topic for this list.
I like (especially when "ping pong pairing") to write a spec, then
write the smallest amount of code I can to pass it (especially when
"ping pong pairing"). Sometimes this means hard-coding a return value,
which means another spec is needed to prove that the code is really
behaving as it should. Trivial example:
----------
describe Adder do
it "should add two numbers" do
Adder.add(2, 2).should == 4
end
end
class Adder
def add a, b
4
end
end
----------
describe Adder do
it "should add 2 and 2" do
Adder.add(2, 2).should == 4
end
it "should add 3 and 4" do
Adder.add(3, 4).should == 7
end
end
class Adder
def add a, b
a + b
end
end
----------
It doesn't seem right though to have all those duplicate specs. An
alternative is to generate random test data, but I'm not really
comfortable doing that because it means the tests aren't strictly
repeatable. I guess this is more of a problem with classic state-based
testing, but even using BDD you still have to test state at the leaf
nodes.
Does anyone have an opinion about whether this is a problem, and
whether there's a clean way of dealing with it?
Thanks,
Kerry
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