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etap_report.erl
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etap_report.erl
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%% Copyright (c) 2008-2009 Nick Gerakines <nick@gerakines.net>
%%
%% 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.
%%
%% @doc A module for creating nice looking code coverage reports.
-module(etap_report).
-export([create/0]).
%% @spec create() -> ok
%% @doc Create html code coverage reports for each module that code coverage
%% data exists for.
create() ->
[cover:import(File) || File <- filelib:wildcard("cover/*.coverdata")],
Modules = lists:foldl(
fun(Module, Acc) ->
[{Module, file_report(Module)} | Acc]
end,
[],
cover:imported_modules()
),
index(Modules).
%% @private
index(Modules) ->
{ok, IndexFD} = file:open("cover/index.html", [write]),
io:format(IndexFD, "<html><head><style>
table.percent_graph { height: 12px; border:1px solid #E2E6EF; empty-cells: show; }
table.percent_graph td.covered { height: 10px; background: #00f000; }
table.percent_graph td.uncovered { height: 10px; background: #e00000; }
.odd { background-color: #ddd; }
.even { background-color: #fff; }
</style></head>", []),
io:format(IndexFD, "<body>", []),
lists:foldl(
fun({Module, {Good, Bad, Source}}, LastRow) ->
case {Good + Bad, Source} of
{0, _} -> LastRow;
{_, none} -> LastRow;
_ ->
CovPer = round((Good / (Good + Bad)) * 100),
UnCovPer = round((Bad / (Good + Bad)) * 100),
RowClass = case LastRow of 1 -> "odd"; _ -> "even" end,
io:format(IndexFD, "<div class=\"~s\">", [RowClass]),
io:format(IndexFD, "<a href=\"~s\">~s</a>", [atom_to_list(Module) ++ "_report.html", atom_to_list(Module)]),
io:format(IndexFD, "
<table cellspacing='0' cellpadding='0' align='right'>
<tr>
<td><tt>~p%</tt> </td><td>
<table cellspacing='0' class='percent_graph' cellpadding='0' width='100'>
<tr><td class='covered' width='~p' /><td class='uncovered' width='~p' /></tr>
</table>
</td>
</tr>
</table>
", [CovPer, CovPer, UnCovPer]),
io:format(IndexFD, "</div>", []),
case LastRow of
1 -> 0;
0 -> 1
end
end
end,
0,
lists:sort(Modules)
),
{TotalGood, TotalBad} = lists:foldl(
fun({_, {Good, Bad, Source}}, {TGood, TBad}) ->
case Source of none -> {TGood, TBad}; _ -> {TGood + Good, TBad + Bad} end
end,
{0, 0},
Modules
),
io:format(IndexFD, "<p>Generated on ~s.</p>~n", [etap:datetime({date(), time()})]),
case TotalGood + TotalBad of
0 -> ok;
_ ->
TotalCovPer = round((TotalGood / (TotalGood + TotalBad)) * 100),
TotalUnCovPer = round((TotalBad / (TotalGood + TotalBad)) * 100),
io:format(IndexFD, "<div>", []),
io:format(IndexFD, "Total
<table cellspacing='0' cellpadding='0' align='right'>
<tr>
<td><tt>~p%</tt> </td><td>
<table cellspacing='0' class='percent_graph' cellpadding='0' width='100'>
<tr><td class='covered' width='~p' /><td class='uncovered' width='~p' /></tr>
</table>
</td>
</tr>
</table>
", [TotalCovPer, TotalCovPer, TotalUnCovPer]),
io:format(IndexFD, "</div>", [])
end,
io:format(IndexFD, "</body></html>", []),
file:close(IndexFD),
ok.
%% @private
file_report(Module) ->
{ok, Data} = cover:analyse(Module, calls, line),
Source = find_source(Module),
{Good, Bad} = collect_coverage(Data, {0, 0}),
case {Source, Good + Bad} of
{none, _} -> ok;
{_, 0} -> ok;
_ ->
{ok, SourceFD} = file:open(Source, [read]),
{ok, WriteFD} = file:open("cover/" ++ atom_to_list(Module) ++ "_report.html", [write]),
io:format(WriteFD, "~s", [header(Module, Good, Bad)]),
output_lines(Data, WriteFD, SourceFD, 1),
io:format(WriteFD, "~s", [footer()]),
file:close(WriteFD),
file:close(SourceFD),
ok
end,
{Good, Bad, Source}.
%% @private
collect_coverage([], Acc) -> Acc;
collect_coverage([{{_, _}, 0} | Data], {Good, Bad}) ->
collect_coverage(Data, {Good, Bad + 1});
collect_coverage([_ | Data], {Good, Bad}) ->
collect_coverage(Data, {Good + 1, Bad}).
%% @private
output_lines(Data, WriteFD, SourceFD, LineNumber) ->
{Match, NextData} = datas_match(Data, LineNumber),
case io:get_line(SourceFD, '') of
eof -> ok;
Line = "%% @todo" ++ _ ->
io:format(WriteFD, "~s", [out_line(LineNumber, highlight, Line)]),
output_lines(NextData, WriteFD, SourceFD, LineNumber + 1);
Line = "% " ++ _ ->
io:format(WriteFD, "~s", [out_line(LineNumber, none, Line)]),
output_lines(NextData, WriteFD, SourceFD, LineNumber + 1);
Line ->
case Match of
{true, CC} ->
io:format(WriteFD, "~s", [out_line(LineNumber, CC, Line)]),
output_lines(NextData, WriteFD, SourceFD, LineNumber + 1);
false ->
io:format(WriteFD, "~s", [out_line(LineNumber, none, Line)]),
output_lines(NextData, WriteFD, SourceFD, LineNumber + 1)
end
end.
%% @private
out_line(Number, none, Line) ->
PadNu = string:right(integer_to_list(Number), 5, $.),
io_lib:format("<span class=\"marked\"><a name=\"line~p\"></a>~s ~s</span>", [Number, PadNu, Line]);
out_line(Number, highlight, Line) ->
PadNu = string:right(integer_to_list(Number), 5, $.),
io_lib:format("<span class=\"highlight\"><a name=\"line~p\"></a>~s ~s</span>", [Number, PadNu, Line]);
out_line(Number, 0, Line) ->
PadNu = string:right(integer_to_list(Number), 5, $.),
io_lib:format("<span class=\"uncovered\"><a name=\"line~p\"></a>~s ~s</span>", [Number, PadNu, Line]);
out_line(Number, _, Line) ->
PadNu = string:right(integer_to_list(Number), 5, $.),
io_lib:format("<span class=\"covered\"><a name=\"line~p\"></a>~s ~s</span>", [Number, PadNu, Line]).
%% @private
datas_match([], _) -> {false, []};
datas_match([{{_, Line}, CC} | Datas], LineNumber) when Line == LineNumber -> {{true, CC}, Datas};
datas_match(Data, _) -> {false, Data}.
%% @private
find_source(Module) when is_atom(Module) ->
Root = filename:rootname(Module),
Dir = filename:dirname(Root),
XDir = case os:getenv("SRC") of false -> "src"; X -> X end,
find_source([
filename:join([Dir, Root ++ ".erl"]),
filename:join([Dir, "..", "src", Root ++ ".erl"]),
filename:join([Dir, "src", Root ++ ".erl"]),
filename:join([Dir, "elibs", Root ++ ".erl"]),
filename:join([Dir, "..", "elibs", Root ++ ".erl"]),
filename:join([Dir, XDir, Root ++ ".erl"])
]);
find_source([]) -> none;
find_source([Test | Tests]) ->
case filelib:is_file(Test) of
true -> Test;
false -> find_source(Tests)
end.
%% @private
header(Module, Good, Bad) ->
io:format("Good ~p~n", [Good]),
io:format("Bad ~p~n", [Bad]),
CovPer = round((Good / (Good + Bad)) * 100),
UnCovPer = round((Bad / (Good + Bad)) * 100),
io:format("CovPer ~p~n", [CovPer]),
io_lib:format("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">
<html lang='en' xml:lang='en' xmlns='http://www.w3.org/1999/xhtml'>
<head>
<title>~s - C0 code coverage information</title>
<style type='text/css'>body { background-color: rgb(240, 240, 245); }</style>
<style type='text/css'>span.marked0 {
background-color: rgb(185, 210, 200);
display: block;
}
span.marked { display: block; background-color: #ffffff; }
span.highlight { display: block; background-color: #fff9d7; }
span.covered { display: block; background-color: #f7f7f7 ; }
span.uncovered { display: block; background-color: #ffebe8 ; }
span.overview {
border-bottom: 1px solid #E2E6EF;
}
div.overview {
border-bottom: 1px solid #E2E6EF;
}
body {
font-family: verdana, arial, helvetica;
}
div.footer {
font-size: 68%;
margin-top: 1.5em;
}
h1, h2, h3, h4, h5, h6 {
margin-bottom: 0.5em;
}
h5 {
margin-top: 0.5em;
}
.hidden {
display: none;
}
div.separator {
height: 10px;
}
table.percent_graph {
height: 12px;
border: 1px solid #E2E6EF;
empty-cells: show;
}
table.percent_graph td.covered {
height: 10px;
background: #00f000;
}
table.percent_graph td.uncovered {
height: 10px;
background: #e00000;
}
table.percent_graph td.NA {
height: 10px;
background: #eaeaea;
}
table.report {
border-collapse: collapse;
width: 100%;
}
table.report td.heading {
background: #dcecff;
border: 1px solid #E2E6EF;
font-weight: bold;
text-align: center;
}
table.report td.heading:hover {
background: #c0ffc0;
}
table.report td.text {
border: 1px solid #E2E6EF;
}
table.report td.value {
text-align: right;
border: 1px solid #E2E6EF;
}
table.report tr.light {
background-color: rgb(240, 240, 245);
}
table.report tr.dark {
background-color: rgb(230, 230, 235);
}
</style>
</head>
<body>
<h3>C0 code coverage information</h3>
<p>Generated on ~s with <a href='http://github.com/ngerakines/etap'>etap 0.3.4</a>.
</p>
<table class='report'>
<thead>
<tr>
<td class='heading'>Name</td>
<td class='heading'>Total lines</td>
<td class='heading'>Lines of code</td>
<td class='heading'>Total coverage</td>
<td class='heading'>Code coverage</td>
</tr>
</thead>
<tbody>
<tr class='light'>
<td>
<a href='~s'>~s</a>
</td>
<td class='value'>
<tt>??</tt>
</td>
<td class='value'>
<tt>??</tt>
</td>
<td class='value'>
<tt>??</tt>
</td>
<td>
<table cellspacing='0' cellpadding='0' align='right'>
<tr>
<td><tt>~p%</tt> </td><td>
<table cellspacing='0' class='percent_graph' cellpadding='0' width='100'>
<tr><td class='covered' width='~p' /><td class='uncovered' width='~p' /></tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</tbody>
</table><pre>", [Module, etap:datetime({date(), time()}), atom_to_list(Module) ++ "_report.html", Module, CovPer, CovPer, UnCovPer]).
%% @private
footer() ->
"</pre><hr /><p>Generated using <a href='http://github.com/ngerakines/etap'>etap 0.3.4</a>.</p>
</body>
</html>
".