erlang单元测试

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• Including the EUnit header file

  -include("eunit/include/eunit.hrl").

  test/0, xxx_test(), xxx_test_()

• Writing simple test functions

  Use exceptions to signal failures

  Using assert macros

• Running EUnit

  eunit:test(Module) <==> Module:test()

  Putting tests in seperate modules: m_tests, only eunit:test(Module)

  Eunit captures the output: use ?debugMsg(Text), ?debugFmt(FmtStr, Value)

• Writing test generating functions

  ?_assert() vs. ?assert()

• An example

• Disabling testing

  erlc -DNOTEST Module.erl

• Avoiding compile-time dependency on EUnit

  -ifdef(TEST).

  -include_lib("eunit/include/eunit.hrl").

  -endif.