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|
%% -------------------------------------------------------------------
%%
%% rebar: Erlang Build Tools
%%
%% Copyright (c) 2009 Dave Smith (dizzyd@dizzyd.com)
%%
%% Permission is hereby granted, free of charge, to any person obtaining a copy
%% of this software and associated documentation files (the "Software"), to deal
%% in the Software without restriction, including without limitation the rights
%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
%% copies of the Software, and to permit persons to whom the Software is
%% furnished to do so, subject to the following conditions:
%%
%% The above copyright notice and this permission notice shall be included in
%% all copies or substantial portions of the Software.
%%
%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
%% THE SOFTWARE.
%% -------------------------------------------------------------------
%%
%% Targets:
%% eunit - runs eunit tests
%% clean - remove .eunit directory
%%
%% Global options:
%% verbose=1 - show extra output from the eunit test
%% suite="foo"" - runs test/foo_tests.erl
%% -------------------------------------------------------------------
-module(rebar_eunit).
-export([eunit/2]).
-compile([export_all]).
-include("rebar.hrl").
-define(EUNIT_DIR, ".eunit").
%% ===================================================================
%% Public API
%% ===================================================================
eunit(Config, _File) ->
%% Make sure ?EUNIT_DIR/ directory exists (tack on dummy module)
ok = filelib:ensure_dir(?EUNIT_DIR ++ "/foo"),
%% Compile all erlang from src/ into ?EUNIT_DIR
rebar_erlc_compiler:do_compile(Config, "src/*.erl", ?EUNIT_DIR, ".erl", ".beam",
fun compile_erl/2,
rebar_config:get_list(Config, erl_first_files, [])),
%% Build a list of all the .beams in ?EUNIT_DIR -- use this for cover
%% and eunit testing. Normally you can just tell cover and/or eunit to
%% scan the directory for you, but eunit does a code:purge in conjunction
%% with that scan and causes any cover compilation info to be lost. So,
%% we do it by hand. :(
Modules = [list_to_atom(filename:basename(N, ".beam")) ||
N <- filelib:wildcard("*.beam", "ebin")],
%% TODO: If there are other wildcards specified in eunit_sources, compile them
%% Save current code path and then prefix ?EUNIT_DIR on it so that our modules
%% are found there
InitCodePath = code:get_path(),
true = code:add_patha(?EUNIT_DIR),
%% Enable verbose in eunit if so requested..
case rebar_config:is_verbose() of
true ->
BaseOpts = [verbose];
false ->
BaseOpts = []
end,
%% If cover support is requested, set it up
case rebar_config:get(Config, cover_enabled, false) of
true ->
cover_init(Config);
_ ->
ok
end,
%% Move down into ?EUNIT_DIR while we run tests so any generated files
%% are created there (versus in the source dir)
Cwd = rebar_utils:get_cwd(),
file:set_cwd(?EUNIT_DIR),
%% Run eunit
EunitOpts = BaseOpts ++ rebar_config:get_list(Config, eunit_opts, []),
EunitResult = (catch eunit:test(Modules, EunitOpts)),
%% Return to original working dir
file:set_cwd(Cwd),
%% Analyze cover modules
cover_analyze(Config, cover:modules()),
case EunitResult of
ok ->
ok;
_ ->
?CONSOLE("One or more eunit tests failed.\n", []),
?FAIL
end,
%% Restore code path
true = code:set_path(InitCodePath),
ok.
clean(_Config, _File) ->
rebar_file_utils:rm_rf(?EUNIT_DIR).
%% ===================================================================
%% Internal functions
%% ===================================================================
compile_erl(Source, Config) ->
case is_quickcheck_avail() of
true ->
EqcOpts = [{d, 'EQC'}];
false ->
EqcOpts = []
end,
ErlOpts = rebar_config:get_list(Config, erl_opts, []),
EunitOpts = rebar_config:get_list(Config, eunit_compile_opts, []),
Opts = [{i, "include"}, {outdir, ?EUNIT_DIR}, {d, 'TEST'}, debug_info, report] ++
ErlOpts ++ EunitOpts ++ EqcOpts,
case compile:file(Source, Opts) of
{ok, _} ->
ok;
error ->
?FAIL
end.
is_quickcheck_avail() ->
case erlang:get(is_quickcheck_avail) of
undefined ->
case code:lib_dir(eqc, include) of
{error, bad_name} ->
IsAvail = false;
Dir ->
IsAvail = filelib:is_file(filename:join(Dir, "eqc.hrl"))
end,
erlang:put(is_quickcheck_avail, IsAvail),
?DEBUG("Quickcheck availability: ~p\n", [IsAvail]),
IsAvail;
IsAvail ->
IsAvail
end.
cover_init(_Config) ->
%% Make sure any previous runs of cover don't unduly influence
cover:reset(),
?INFO("Cover compiling ~s\n", [rebar_utils:get_cwd()]),
case cover:compile_beam_directory(?EUNIT_DIR) of
{error, Reason2} ->
?ERROR("Cover compilation failed: ~p\n", [Reason2]),
?FAIL;
Modules ->
%% It's not an error for cover compilation to fail partially, but we do want
%% to warn about them
[?CONSOLE("Cover compilation warning: ~p", [Desc]) || {error, Desc} <- Modules],
%% Identify the modules that were compiled successfully
case [ M || {ok, M} <- Modules] of
[] ->
%% No modules compiled successfully...fail
?ERROR("Cover failed to compile any modules; aborting.\n", []),
?FAIL;
_ ->
%% At least one module compiled successfully
ok
end
end.
cover_analyze(_Config, []) ->
ok;
cover_analyze(_Config, Modules) ->
%% Generate coverage info for all the cover-compiled modules
Coverage = [cover_analyze_mod(M) || M <- Modules],
%% Write index of coverage info
cover_write_index(lists:sort(Coverage)),
%% Write coverage details for each file
[{ok, _} = cover:analyze_to_file(M, cover_file(M), [html]) || {M, _, _} <- Coverage],
Index = filename:join([rebar_utils:get_cwd(), ?EUNIT_DIR, "index.html"]),
?CONSOLE("Cover analysis: ~s\n", [Index]).
cover_analyze_mod(Module) ->
case cover:analyze(Module, coverage, module) of
{ok, {Module, {Covered, NotCovered}}} ->
{Module, Covered, NotCovered};
{error, Reason} ->
?ERROR("Cover analyze failed for ~p: ~p ~p\n",
[Module, Reason, code:which(Module)]),
{0,0}
end.
cover_write_index(Coverage) ->
%% Calculate total coverage %
{Covered, NotCovered} = lists:foldl(fun({_Mod, C, N}, {CAcc, NAcc}) ->
{CAcc + C, NAcc + N}
end, {0, 0}, Coverage),
TotalCoverage = percentage(Covered, NotCovered),
%% Write the report
{ok, F} = file:open(filename:join([?EUNIT_DIR, "index.html"]), [write]),
ok = file:write(F, "<html><head><title>Coverage Summary</title></head>\n"
"<body><h1>Coverage Summary</h1>\n"),
ok = file:write(F, ?FMT("<h3>Total: ~w%</h3>\n", [TotalCoverage])),
ok = file:write(F, "<table><tr><th>Module</th><th>Coverage %</th></tr>\n"),
[ok = file:write(F, ?FMT("<tr><td><a href='~s.COVER.html'>~s</a></td><td>~w%</td>\n",
[Module, Module, percentage(Cov, NotCov)])) ||
{Module, Cov, NotCov} <- Coverage],
ok = file:write(F, "</table></body></html>"),
file:close(F).
cover_file(Module) ->
filename:join([?EUNIT_DIR, atom_to_list(Module) ++ ".COVER.html"]).
percentage(Cov, NotCov) ->
trunc((Cov / (Cov + NotCov)) * 100).
|
