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Add section on eunit in erlang doc

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Ed Holland 2015-10-02 01:11:10 +01:00 committed by edholland
parent a743c831a0
commit 61597e603f
1 changed files with 33 additions and 0 deletions
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@ -299,6 +299,39 @@ CalculateArea ! {circle, 2}. % 12.56000000000000049738
% The shell is also a process; you can use `self` to get the current pid.
self(). % <0.41.0>
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% 5. Testing with EUnit
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Unit tests can be written using EUnits's test generators and assert macros
-module(fib).
-export([fib/1]).
-include_lib("eunit/include/eunit.hrl").
fib(0) -> 1;
fib(1) -> 1;
fib(N) when N > 1 -> fib(N-1) + fib(N-2).
fib_test_() ->
[?_assert(fib(0) =:= 1),
?_assert(fib(1) =:= 1),
?_assert(fib(2) =:= 2),
?_assert(fib(3) =:= 3),
?_assert(fib(4) =:= 5),
?_assert(fib(5) =:= 8),
?_assertException(error, function_clause, fib(-1)),
?_assert(fib(31) =:= 2178309)
].
% EUnit will automatically export to a test() fucntion to allo running the tests
% in the erlang shell
fib:test()
% The popular erlang build tool Rebar is also compatible with EUnit
% ```
% rebar eunit
% ```
```
## References