1 files changed, 132 insertions, 0 deletions
diff --git a/test/leveldbtest.erl b/test/leveldbtest.erl
new file mode 100755
index 0000000..e95390b
--- /dev/null
+++ b/test/leveldbtest.erl
@@ -0,0 +1,132 @@
+#!/usr/bin/env escript
+%% -*- erlang -*-
+%%! -pa test -pa ../lager/ebin -pa ../lager/deps/goldrush/ebin -s lager -config test/check.config
+
+-mode(compile).
+
+testinit(Filename) ->
+    {ok, _Pid} = leveldb:start_link(testdb, Filename).
+
+teststop() ->
+    leveldb:stop(testdb).
+
+testget(_Filename, TestData, Datasize) ->
+    getvalue_loop(TestData, none, Datasize),
+    ok.
+
+testadd(_Filename, TestData, Datasize) ->
+    addvalue_loop(TestData, none, Datasize),
+    case leveldb:commit(testdb) of
+        <<0>> ->
+            ok;
+        Other ->
+            io:format("commit expected: 0 got: ~p~n", [Other]),
+            exit(mismatch)
+    end.
+
+stop() ->
+    teststop(),
+    receive
+    after
+        100 ->
+            ok
+    end.
+
+gentestdata(Size) ->
+    [{crypto:hash(sha256, <<E:32, 0:32>>), crypto:hash(sha256, <<E:32, 1:32>>)} || E <- lists:seq(0, Size-1)].
+
+genemptytestdata(Size) ->
+    [{crypto:hash(sha256, <<E:32, 0:32>>), noentry} || E <- lists:seq(0, Size-1)].
+
+timeprint(Time) ->
+    io_lib:format("~.2fs", [Time/1000000]).
+
+constructdata(VSeed, Size) ->
+    A = binary:copy(VSeed, Size div 32),
+    B = binary:part(VSeed, 0, Size rem 32),
+    <<A/binary, B/binary>>.
+
+getvalue_loop([], _Port, _Datasize) ->
+    none;
+getvalue_loop([{K, VSeed}|Rest], Port, Datasize) ->
+    V = case VSeed of
+            noentry ->
+                noentry;
+            _ ->
+                constructdata(VSeed, Datasize)
+        end,
+    case leveldb:getvalue(testdb, K) of
+        V ->
+            getvalue_loop(Rest, Port, Datasize);
+        VOther ->
+            io:format("expected: ~p got: ~p~nkey: ~p~n", [V, VOther, K]),
+            exit(mismatch)
+    end.
+
+addvalue_loop([], _Port, _Datasize) ->
+    none;
+addvalue_loop([{K, VSeed}|Rest], Port, Datasize) ->
+    V = constructdata(VSeed, Datasize),
+    case leveldb:addvalue(testdb, K, V) of
+        ok ->
+            addvalue_loop(Rest, Port, Datasize);
+        Other ->
+            io:format("expected: 0 or 1 got: ~p~n", [Other]),
+            exit(mismatch)
+    end.
+
+remove_db(Dir) ->
+    case file:list_dir(Dir) of
+        {ok, List} ->
+            lists:foreach(fun(File) ->
+                                  ok = file:delete(filename:join(Dir, File)) end,
+                          List),
+            ok = file:del_dir(Dir);
+        _ ->
+            ok
+    end.
+
+main([]) ->
+    {ok, Cwd} = file:get_cwd(),
+    code:add_path(Cwd ++ "/ebin"),
+    Size = 10,
+    Datasize = 99,
+    Filename = "testleveldb",
+    remove_db(Filename),
+    {Time1, TestData} = timer:tc(fun () -> gentestdata(Size) end),
+    EmptyTestData = genemptytestdata(Size),
+
+    io:format("Init with ~p entries: ~s~n", [Size, timeprint(Time1)]),
+    testinit(Filename),
+    Testadd = fun () ->
+                      {Time2, ok} = timer:tc(fun () -> testadd(Filename, TestData, Datasize) end),
+                      io:format("Add ~p entries: ~s ~.1f entries/s (~.2f microseconds)~n", [Size, timeprint(Time2), Size*1000000/Time2, Time2/Size])
+              end,
+    Testadd(),
+    Testget = fun () ->
+                      {Time2, ok} = timer:tc(fun () -> testget(Filename, TestData, Datasize) end),
+                      io:format("Get ~p entries: ~s ~.1f entries/s (~.2f microseconds)~n", [Size, timeprint(Time2), Size*1000000/Time2, Time2/Size])
+              end,
+    Testget(),
+    stop(),
+
+    io:format("------------------------------------------------------------~n", []),
+    remove_db(Filename),
+    testinit(Filename),
+    Testemptyget = fun () ->
+                      {Time2, ok} = timer:tc(fun () -> testget(Filename, EmptyTestData, Datasize) end),
+                      io:format("Get ~p entries: ~s ~.1f entries/s (~.2f microseconds)~n", [Size, timeprint(Time2), Size*1000000/Time2, Time2/Size])
+              end,
+    Testemptyget(),
+    testadd(Filename, gentestdata(1), 99),
+    testadd(Filename, gentestdata(1+2), 99),
+    testadd(Filename, gentestdata(1+2+3), 99),
+    testadd(Filename, gentestdata(1+2+3+4), 99),
+    testget(Filename, gentestdata(1+2+3+4), 99),
+    stop(),
+
+    testinit(Filename),
+    testget(Filename, gentestdata(1+2+3+4), 99),
+    stop(),
+
+    ok.