[beam_stats.git] / test / beam_stats_consumer_statsd_SUITE.erl

-module(beam_stats_consumer_statsd_SUITE).

-include_lib("beam_stats/include/beam_stats.hrl").
-include_lib("beam_stats/include/beam_stats_ets_table.hrl").
-include_lib("beam_stats/include/beam_stats_process.hrl").
-include_lib("beam_stats/include/beam_stats_process_ancestry.hrl").
-include_lib("beam_stats/include/beam_stats_processes.hrl").

-export(
    [ all/0
    , groups/0
    ]).

%% Test cases
-export(
    [ t_full_cycle/1
    ]).

-define(GROUP, beam_stats_consumer_statsd).

%% ============================================================================
%% Common Test callbacks
%% ============================================================================

all() ->
    [{group, ?GROUP}].

groups() ->
    Tests =
        [ t_full_cycle
        ],
    Properties = [],
    [{?GROUP, Properties, Tests}].

%% ============================================================================
%%  Test cases
%% ============================================================================

t_full_cycle(_Cfg) ->
    meck:new(beam_stats_source),
    _BEAMStatsExpected = meck_expect_beam_stats(),

    {ok,[hope,beam_stats]} = application:ensure_all_started(beam_stats),
    ct:log("beam_stats started~n"),
    ServerPort = 8125,
    {ok, ServerSocket} = gen_udp:open(ServerPort, [binary, {active, false}]),
    ct:log("UDP server started started~n"),
    {ok, _} = beam_stats_consumer:add(beam_stats_consumer_statsd,
        [ {consumption_interval , 60000}
        , {dst_host             , "localhost"}
        , {dst_port             , ServerPort}
        , {src_port             , 8124}
        , {num_msgs_per_packet  , 10}
        ]
    ),
    ct:log("consumer added~n"),
    _ = meck_expect_beam_stats(
        % Double the original values, so that deltas will equal originals after
        % 1 update of new beam_stats_state:t()
        [ {io_bytes_in      , 6}
        , {io_bytes_out     , 14}
        , {context_switches , 10}
        ]
    ),
    ct:log("meck_expect_beam_stats ok~n"),
    {} = beam_stats_producer:sync_produce_consume(),
    ct:log("produced and consumed~n"),
    ok = application:stop(beam_stats),
    ct:log("beam_stats stopped~n"),

    ResultOfReceive1 = gen_udp:recv(ServerSocket, 0),
    ResultOfReceive2 = gen_udp:recv(ServerSocket, 0),
    ResultOfReceive3 = gen_udp:recv(ServerSocket, 0),
    ResultOfReceive4 = gen_udp:recv(ServerSocket, 0),
    ok = gen_udp:close(ServerSocket),
    {ok, {_, _, PacketReceived1}} = ResultOfReceive1,
    {ok, {_, _, PacketReceived2}} = ResultOfReceive2,
    {ok, {_, _, PacketReceived3}} = ResultOfReceive3,
    {ok, {_, _, PacketReceived4}} = ResultOfReceive4,
    ct:log("PacketReceived1: ~n~s~n", [PacketReceived1]),
    ct:log("PacketReceived2: ~n~s~n", [PacketReceived2]),
    ct:log("PacketReceived3: ~n~s~n", [PacketReceived3]),
    ct:log("PacketReceived4: ~n~s~n", [PacketReceived4]),
    PacketsCombined =
        << PacketReceived1/binary
         , PacketReceived2/binary
         , PacketReceived3/binary
         , PacketReceived4/binary
        >>,
    ct:log("PacketsCombined: ~n~s~n", [PacketsCombined]),
    MsgsExpected =
        [ <<"beam_stats_v0.node_foo_host_bar.io.bytes_in:3|g">>
        , <<"beam_stats_v0.node_foo_host_bar.io.bytes_out:7|g">>
        , <<"beam_stats_v0.node_foo_host_bar.context_switches:5|g">>
        , <<"beam_stats_v0.node_foo_host_bar.reductions:9|g">>
        , <<"beam_stats_v0.node_foo_host_bar.run_queue:17|g">>
        , <<"beam_stats_v0.node_foo_host_bar.memory.mem_type_foo:1|g">>
        , <<"beam_stats_v0.node_foo_host_bar.memory.mem_type_bar:2|g">>
        , <<"beam_stats_v0.node_foo_host_bar.memory.mem_type_baz:3|g">>
        , <<"beam_stats_v0.node_foo_host_bar.ets_table.size.foo.NAMED:5|g">>
        , <<"beam_stats_v0.node_foo_host_bar.ets_table.memory.foo.NAMED:40|g">>
        , <<"beam_stats_v0.node_foo_host_bar.ets_table.size.bar.TID:16|g">>
        , <<"beam_stats_v0.node_foo_host_bar.ets_table.memory.bar.TID:128|g">>

        % Processes totals
        , <<"beam_stats_v0.node_foo_host_bar.processes_count_all:4|g">>
        , <<"beam_stats_v0.node_foo_host_bar.processes_count_exiting:0|g">>
        , <<"beam_stats_v0.node_foo_host_bar.processes_count_garbage_collecting:0|g">>
        , <<"beam_stats_v0.node_foo_host_bar.processes_count_registered:1|g">>
        , <<"beam_stats_v0.node_foo_host_bar.processes_count_runnable:0|g">>
        , <<"beam_stats_v0.node_foo_host_bar.processes_count_running:3|g">>
        , <<"beam_stats_v0.node_foo_host_bar.processes_count_suspended:0|g">>
        , <<"beam_stats_v0.node_foo_host_bar.processes_count_waiting:1|g">>

        % Process 1
        , <<"beam_stats_v0.node_foo_host_bar.process_memory.named--reg_name_foo:15|g">>
        , <<"beam_stats_v0.node_foo_host_bar.process_total_heap_size.named--reg_name_foo:25|g">>
        , <<"beam_stats_v0.node_foo_host_bar.process_stack_size.named--reg_name_foo:10|g">>
        , <<"beam_stats_v0.node_foo_host_bar.process_message_queue_len.named--reg_name_foo:0|g">>

        % Process 2
        , <<"beam_stats_v0.node_foo_host_bar.process_memory.spawned-via--bar_mod-bar_fun-1--NONE--NONE:25|g">>
        , <<"beam_stats_v0.node_foo_host_bar.process_total_heap_size.spawned-via--bar_mod-bar_fun-1--NONE--NONE:35|g">>
        , <<"beam_stats_v0.node_foo_host_bar.process_stack_size.spawned-via--bar_mod-bar_fun-1--NONE--NONE:40|g">>
        , <<"beam_stats_v0.node_foo_host_bar.process_message_queue_len.spawned-via--bar_mod-bar_fun-1--NONE--NONE:5|g">>

        % Process 3 and 4, aggregated by origin
        , <<"beam_stats_v0.node_foo_host_bar.process_memory.spawned-via--baz_mod-baz_fun-3--baz_otp_mod-baz_otp_fun-2--PID-PID:30|g">>
        , <<"beam_stats_v0.node_foo_host_bar.process_total_heap_size.spawned-via--baz_mod-baz_fun-3--baz_otp_mod-baz_otp_fun-2--PID-PID:45|g">>
        , <<"beam_stats_v0.node_foo_host_bar.process_stack_size.spawned-via--baz_mod-baz_fun-3--baz_otp_mod-baz_otp_fun-2--PID-PID:55|g">>
        , <<"beam_stats_v0.node_foo_host_bar.process_message_queue_len.spawned-via--baz_mod-baz_fun-3--baz_otp_mod-baz_otp_fun-2--PID-PID:1|g">>
        ],
    MsgsReceived = binary:split(PacketsCombined, <<"\n">>, [global, trim]),
    RemoveExpectedFromReceived =
        fun (Expected, Received) ->
            ct:log(
                "Looking for expected msg ~p in remaining received ~p~n",
                [Expected, Received]
            ),
            true = lists:member(Expected, Received),
            Received -- [Expected]
        end,
    [] = lists:foldl(RemoveExpectedFromReceived, MsgsReceived, MsgsExpected),
    meck:unload(beam_stats_source).

meck_expect_beam_stats() ->
    meck_expect_beam_stats([]).

meck_expect_beam_stats(Overrides) ->
    IOBytesIn       = hope_kv_list:get(Overrides, io_bytes_in , 3),
    IOBytesOut      = hope_kv_list:get(Overrides, io_bytes_out, 7),
    ContextSwitches = hope_kv_list:get(Overrides, context_switches, 5),
    Pid0 = list_to_pid("<0.0.0>"),
    Pid1 = list_to_pid("<0.1.0>"),
    Pid2 = list_to_pid("<0.2.0>"),
    Pid3 = list_to_pid("<0.3.0>"),
    Pid4 = list_to_pid("<0.4.0>"),
    Process1 =
        #beam_stats_process
        { pid               = Pid1
        , registered_name   = {some, reg_name_foo}
        , ancestry =
              #beam_stats_process_ancestry
              { raw_initial_call  = {foo_mod, foo_fun, 2}
              , otp_initial_call  = none
              , otp_ancestors     = none
              }
        , status            = running
        , memory            = 15
        , total_heap_size   = 25
        , stack_size        = 10
        , message_queue_len = 0
        },
    Process2 =
        #beam_stats_process
        { pid               = Pid2
        , registered_name   = none
        , ancestry =
              #beam_stats_process_ancestry
              { raw_initial_call  = {bar_mod, bar_fun, 1}
              , otp_initial_call  = none
              , otp_ancestors     = none
              }
        , status            = running
        , memory            = 25
        , total_heap_size   = 35
        , stack_size        = 40
        , message_queue_len = 5
        },
    Process3 =
        #beam_stats_process
        { pid               = Pid3
        , registered_name   = none
        , ancestry =
              #beam_stats_process_ancestry
              { raw_initial_call  = {baz_mod, baz_fun, 3}
              , otp_initial_call  = {some, {baz_otp_mod, baz_otp_fun, 2}}
              , otp_ancestors     = {some, [Pid0, Pid1]}
              }
        , status            = running
        , memory            = 25
        , total_heap_size   = 35
        , stack_size        = 40
        , message_queue_len = 1
        },
    Process4 =
        #beam_stats_process
        { pid               = Pid4
        , registered_name   = none
        , ancestry =
              #beam_stats_process_ancestry
              { raw_initial_call  = {baz_mod, baz_fun, 3}
              , otp_initial_call  = {some, {baz_otp_mod, baz_otp_fun, 2}}
              , otp_ancestors     = {some, [Pid0, Pid1]}
              }
        , status            = waiting
        , memory            = 5
        , total_heap_size   = 10
        , stack_size        = 15
        , message_queue_len = 0
        },
    Processes =
        #beam_stats_processes
        { individual_stats =
            [ Process1
            , Process2
            , Process3
            , Process4
            ]
        , count_all                = 4
        , count_exiting            = 0
        , count_garbage_collecting = 0
        , count_registered         = 1
        , count_runnable           = 0
        , count_running            = 3
        , count_suspended          = 0
        , count_waiting            = 1
        },
    ETSTableStatsFoo =
        #beam_stats_ets_table
        { id     = foo
        , name   = foo
        , size   = 5
        , memory = 40
        },
    ETSTableStatsBarA =
        #beam_stats_ets_table
        { id     = 37
        , name   = bar
        , size   = 8
        , memory = 64
        },
    ETSTableStatsBarB =
        #beam_stats_ets_table
        { id     = 38
        , name   = bar
        , size   = 8
        , memory = 64
        },
    meck:expect(beam_stats_source, erlang_memory,
        fun () -> [{mem_type_foo, 1}, {mem_type_bar, 2}, {mem_type_baz, 3}] end),
    meck:expect(beam_stats_source, erlang_node,
        fun () -> 'node_foo@host_bar' end),
    meck:expect(beam_stats_source, erlang_registered,
        fun () -> [reg_name_foo] end),
    meck:expect(beam_stats_source, erlang_statistics,
        fun (io              ) -> {{input, IOBytesIn}, {output, IOBytesOut}}
        ;   (context_switches) -> {ContextSwitches, 0}
        ;   (reductions      ) -> {0, 9} % 1st element is unused
        ;   (run_queue       ) -> 17
        end
    ),
    meck:expect(beam_stats_source, ets_all,
        fun () -> [foo, 37, 38] end),
    meck:expect(beam_stats_source, erlang_system_info,
        fun (wordsize) -> 8 end),
    meck:expect(beam_stats_source, ets_info,
        fun (foo, memory) -> 5
        ;   (foo, name  ) -> foo
        ;   (foo, size  ) -> 5

        ;   (37 , memory) -> 8
        ;   (37 , name  ) -> bar
        ;   (37 , size  ) -> 8

        ;   (38 , memory) -> 8
        ;   (38 , name  ) -> bar
        ;   (38 , size  ) -> 8
        end
    ),
    meck:expect(beam_stats_source, erlang_processes,
        fun () -> [Pid1, Pid2, Pid3, Pid4] end),
    meck:expect(beam_stats_source, os_timestamp,
        fun () -> {1, 2, 3} end),
    meck:expect(beam_stats_source, erlang_process_info,
        fun (P, K) when P == Pid1 ->
                case K
                of  dictionary        -> {K, []}
                ;   initial_call      -> {K, {foo_mod, foo_fun, 2}}
                ;   registered_name   -> {K, reg_name_foo}
                ;   status            -> {K, running}
                ;   memory            -> {K, 15}
                ;   total_heap_size   -> {K, 25}
                ;   stack_size        -> {K, 10}
                ;   message_queue_len -> {K, 0}
                end
        ;   (P, K) when P == Pid2 ->
                case K
                of  dictionary        -> {K, []}
                ;   initial_call      -> {K, {bar_mod, bar_fun, 1}}
                ;   registered_name   -> []
                ;   status            -> {K, running}
                ;   memory            -> {K, 25}
                ;   total_heap_size   -> {K, 35}
                ;   stack_size        -> {K, 40}
                ;   message_queue_len -> {K, 5}
                end
        ;   (P, K) when P == Pid3 ->
                Dict =
                    [ {'$initial_call', {baz_otp_mod, baz_otp_fun, 2}}
                    , {'$ancestors'   , [Pid0, Pid1]}
                    ],
                case K
                of  dictionary        -> {K, Dict}
                ;   initial_call      -> {K, {baz_mod, baz_fun, 3}}
                ;   registered_name   -> []
                ;   status            -> {K, running}
                ;   memory            -> {K, 25}
                ;   total_heap_size   -> {K, 35}
                ;   stack_size        -> {K, 40}
                ;   message_queue_len -> {K, 1}
                end
        ;   (P, K) when P == Pid4 ->
                Dict =
                    [ {'$initial_call', {baz_otp_mod, baz_otp_fun, 2}}
                    , {'$ancestors'   , [Pid0, Pid1]}
                    ],
                case K
                of  dictionary        -> {K, Dict}
                ;   initial_call      -> {K, {baz_mod, baz_fun, 3}}
                ;   registered_name   -> []
                ;   status            -> {K, waiting}
                ;   memory            -> {K, 5}
                ;   total_heap_size   -> {K, 10}
                ;   stack_size        -> {K, 15}
                ;   message_queue_len -> {K, 0}
                end
        end
    ),
    #beam_stats
    { timestamp = {1, 2, 3}
    , node_id   = 'node_foo@host_bar'
    , memory    = [{mem_type_foo, 1}, {mem_type_bar, 2}, {mem_type_baz, 3}]
    , io_bytes_in  = IOBytesIn
    , io_bytes_out = IOBytesOut
    , context_switches = ContextSwitches
    , reductions       = 9
    , run_queue        = 17
    , ets              = [ETSTableStatsFoo, ETSTableStatsBarA, ETSTableStatsBarB]
    , processes        = Processes
    }.
Commit	Line	Data
b0ab6ee2 SK	1	-module(beam_stats_consumer_statsd_SUITE).
b0ab6ee2 SK	2
da5f2544	3	-include_lib("beam_stats/include/beam_stats.hrl").
a8d431d1	4	-include_lib("beam_stats/include/beam_stats_ets_table.hrl").
69ebab97 SK	5	-include_lib("beam_stats/include/beam_stats_process.hrl").
	6	-include_lib("beam_stats/include/beam_stats_process_ancestry.hrl").
	7	-include_lib("beam_stats/include/beam_stats_processes.hrl").
da5f2544	8
b0ab6ee2 SK	9	-export(
	10	[ all/0
	11	, groups/0
	12	]).
	13
	14	%% Test cases
	15	-export(
f4dcce84	16	[ t_full_cycle/1
b0ab6ee2 SK	17	]).
b0ab6ee2 SK	18
5681263f	19	-define(GROUP, beam_stats_consumer_statsd).
b0ab6ee2 SK	20
	21	%% ============================================================================
	22	%% Common Test callbacks
	23	%% ============================================================================
	24
	25	all() ->
	26	[{group, ?GROUP}].
	27
	28	groups() ->
	29	Tests =
f4dcce84	30	[ t_full_cycle
b0ab6ee2 SK	31	],
	32	Properties = [],
	33	[{?GROUP, Properties, Tests}].
	34
69ebab97	35	%% ============================================================================
b0ab6ee2	36	%% Test cases
69ebab97	37	%% ============================================================================
b0ab6ee2	38
f4dcce84 SK	39	t_full_cycle(_Cfg) ->
f4dcce84 SK	40	meck:new(beam_stats_source),
b2c364fd	41	_BEAMStatsExpected = meck_expect_beam_stats(),
f4dcce84 SK	42
	43	{ok,[hope,beam_stats]} = application:ensure_all_started(beam_stats),
	44	ct:log("beam_stats started~n"),
da5f2544 SK	45	ServerPort = 8125,
da5f2544 SK	46	{ok, ServerSocket} = gen_udp:open(ServerPort, [binary, {active, false}]),
f4dcce84 SK	47	ct:log("UDP server started started~n"),
	48	{ok, _} = beam_stats_consumer:add(beam_stats_consumer_statsd,
	49	[ {consumption_interval , 60000}
	50	, {dst_host , "localhost"}
	51	, {dst_port , ServerPort}
	52	, {src_port , 8124}
	53	, {num_msgs_per_packet , 10}
	54	]
	55	),
	56	ct:log("consumer added~n"),
	57	_ = meck_expect_beam_stats(
	58	% Double the original values, so that deltas will equal originals after
	59	% 1 update of new beam_stats_state:t()
	60	[ {io_bytes_in , 6}
	61	, {io_bytes_out , 14}
	62	, {context_switches , 10}
	63	]
	64	),
	65	ct:log("meck_expect_beam_stats ok~n"),
	66	{} = beam_stats_producer:sync_produce_consume(),
	67	ct:log("produced and consumed~n"),
	68	ok = application:stop(beam_stats),
	69	ct:log("beam_stats stopped~n"),
	70
4d24f3b7	71	ResultOfReceive1 = gen_udp:recv(ServerSocket, 0),
4d24f3b7	72	ResultOfReceive2 = gen_udp:recv(ServerSocket, 0),
69ebab97 SK	73	ResultOfReceive3 = gen_udp:recv(ServerSocket, 0),
69ebab97 SK	74	ResultOfReceive4 = gen_udp:recv(ServerSocket, 0),
da5f2544	75	ok = gen_udp:close(ServerSocket),
69ebab97 SK	76	{ok, {_, _, PacketReceived1}} = ResultOfReceive1,
	77	{ok, {_, _, PacketReceived2}} = ResultOfReceive2,
	78	{ok, {_, _, PacketReceived3}} = ResultOfReceive3,
	79	{ok, {_, _, PacketReceived4}} = ResultOfReceive4,
4d24f3b7 SK	80	ct:log("PacketReceived1: ~n~s~n", [PacketReceived1]),
4d24f3b7 SK	81	ct:log("PacketReceived2: ~n~s~n", [PacketReceived2]),
69ebab97 SK	82	ct:log("PacketReceived3: ~n~s~n", [PacketReceived3]),
	83	ct:log("PacketReceived4: ~n~s~n", [PacketReceived4]),
	84	PacketsCombined =
	85	<< PacketReceived1/binary
	86	, PacketReceived2/binary
	87	, PacketReceived3/binary
	88	, PacketReceived4/binary
	89	>>,
4d24f3b7 SK	90	ct:log("PacketsCombined: ~n~s~n", [PacketsCombined]),
4d24f3b7 SK	91	MsgsExpected =
8fe744e7 SK	92	[ <<"beam_stats_v0.node_foo_host_bar.io.bytes_in:3\|g">>
	93	, <<"beam_stats_v0.node_foo_host_bar.io.bytes_out:7\|g">>
	94	, <<"beam_stats_v0.node_foo_host_bar.context_switches:5\|g">>
	95	, <<"beam_stats_v0.node_foo_host_bar.reductions:9\|g">>
	96	, <<"beam_stats_v0.node_foo_host_bar.run_queue:17\|g">>
	97	, <<"beam_stats_v0.node_foo_host_bar.memory.mem_type_foo:1\|g">>
	98	, <<"beam_stats_v0.node_foo_host_bar.memory.mem_type_bar:2\|g">>
	99	, <<"beam_stats_v0.node_foo_host_bar.memory.mem_type_baz:3\|g">>
c37a5360 SK	100	, <<"beam_stats_v0.node_foo_host_bar.ets_table.size.foo.NAMED:5\|g">>
	101	, <<"beam_stats_v0.node_foo_host_bar.ets_table.memory.foo.NAMED:40\|g">>
	102	, <<"beam_stats_v0.node_foo_host_bar.ets_table.size.bar.TID:16\|g">>
	103	, <<"beam_stats_v0.node_foo_host_bar.ets_table.memory.bar.TID:128\|g">>
69ebab97 SK	104
69ebab97 SK	105	% Processes totals
8fe744e7 SK	106	, <<"beam_stats_v0.node_foo_host_bar.processes_count_all:4\|g">>
	107	, <<"beam_stats_v0.node_foo_host_bar.processes_count_exiting:0\|g">>
	108	, <<"beam_stats_v0.node_foo_host_bar.processes_count_garbage_collecting:0\|g">>
	109	, <<"beam_stats_v0.node_foo_host_bar.processes_count_registered:1\|g">>
	110	, <<"beam_stats_v0.node_foo_host_bar.processes_count_runnable:0\|g">>
	111	, <<"beam_stats_v0.node_foo_host_bar.processes_count_running:3\|g">>
	112	, <<"beam_stats_v0.node_foo_host_bar.processes_count_suspended:0\|g">>
	113	, <<"beam_stats_v0.node_foo_host_bar.processes_count_waiting:1\|g">>
69ebab97 SK	114
69ebab97 SK	115	% Process 1
8fe744e7 SK	116	, <<"beam_stats_v0.node_foo_host_bar.process_memory.named--reg_name_foo:15\|g">>
	117	, <<"beam_stats_v0.node_foo_host_bar.process_total_heap_size.named--reg_name_foo:25\|g">>
	118	, <<"beam_stats_v0.node_foo_host_bar.process_stack_size.named--reg_name_foo:10\|g">>
	119	, <<"beam_stats_v0.node_foo_host_bar.process_message_queue_len.named--reg_name_foo:0\|g">>
69ebab97 SK	120
69ebab97 SK	121	% Process 2
8fe744e7 SK	122	, <<"beam_stats_v0.node_foo_host_bar.process_memory.spawned-via--bar_mod-bar_fun-1--NONE--NONE:25\|g">>
	123	, <<"beam_stats_v0.node_foo_host_bar.process_total_heap_size.spawned-via--bar_mod-bar_fun-1--NONE--NONE:35\|g">>
	124	, <<"beam_stats_v0.node_foo_host_bar.process_stack_size.spawned-via--bar_mod-bar_fun-1--NONE--NONE:40\|g">>
	125	, <<"beam_stats_v0.node_foo_host_bar.process_message_queue_len.spawned-via--bar_mod-bar_fun-1--NONE--NONE:5\|g">>
69ebab97	126
697c496d	127	% Process 3 and 4, aggregated by origin
8fe744e7 SK	128	, <<"beam_stats_v0.node_foo_host_bar.process_memory.spawned-via--baz_mod-baz_fun-3--baz_otp_mod-baz_otp_fun-2--PID-PID:30\|g">>
	129	, <<"beam_stats_v0.node_foo_host_bar.process_total_heap_size.spawned-via--baz_mod-baz_fun-3--baz_otp_mod-baz_otp_fun-2--PID-PID:45\|g">>
	130	, <<"beam_stats_v0.node_foo_host_bar.process_stack_size.spawned-via--baz_mod-baz_fun-3--baz_otp_mod-baz_otp_fun-2--PID-PID:55\|g">>
	131	, <<"beam_stats_v0.node_foo_host_bar.process_message_queue_len.spawned-via--baz_mod-baz_fun-3--baz_otp_mod-baz_otp_fun-2--PID-PID:1\|g">>
4d24f3b7 SK	132	],
	133	MsgsReceived = binary:split(PacketsCombined, <<"\n">>, [global, trim]),
	134	RemoveExpectedFromReceived =
	135	fun (Expected, Received) ->
	136	ct:log(
	137	"Looking for expected msg ~p in remaining received ~p~n",
	138	[Expected, Received]
	139	),
	140	true = lists:member(Expected, Received),
	141	Received -- [Expected]
	142	end,
f4dcce84 SK	143	[] = lists:foldl(RemoveExpectedFromReceived, MsgsReceived, MsgsExpected),
	144	meck:unload(beam_stats_source).
	145
	146	meck_expect_beam_stats() ->
	147	meck_expect_beam_stats([]).
7786d23b	148
f4dcce84 SK	149	meck_expect_beam_stats(Overrides) ->
	150	IOBytesIn = hope_kv_list:get(Overrides, io_bytes_in , 3),
	151	IOBytesOut = hope_kv_list:get(Overrides, io_bytes_out, 7),
	152	ContextSwitches = hope_kv_list:get(Overrides, context_switches, 5),
7786d23b SK	153	Pid0 = list_to_pid("<0.0.0>"),
	154	Pid1 = list_to_pid("<0.1.0>"),
	155	Pid2 = list_to_pid("<0.2.0>"),
	156	Pid3 = list_to_pid("<0.3.0>"),
697c496d	157	Pid4 = list_to_pid("<0.4.0>"),
7786d23b SK	158	Process1 =
	159	#beam_stats_process
	160	{ pid = Pid1
	161	, registered_name = {some, reg_name_foo}
	162	, ancestry =
	163	#beam_stats_process_ancestry
	164	{ raw_initial_call = {foo_mod, foo_fun, 2}
	165	, otp_initial_call = none
	166	, otp_ancestors = none
	167	}
	168	, status = running
	169	, memory = 15
	170	, total_heap_size = 25
	171	, stack_size = 10
	172	, message_queue_len = 0
	173	},
	174	Process2 =
	175	#beam_stats_process
	176	{ pid = Pid2
	177	, registered_name = none
	178	, ancestry =
	179	#beam_stats_process_ancestry
	180	{ raw_initial_call = {bar_mod, bar_fun, 1}
	181	, otp_initial_call = none
	182	, otp_ancestors = none
	183	}
	184	, status = running
	185	, memory = 25
	186	, total_heap_size = 35
	187	, stack_size = 40
	188	, message_queue_len = 5
	189	},
	190	Process3 =
	191	#beam_stats_process
	192	{ pid = Pid3
	193	, registered_name = none
	194	, ancestry =
	195	#beam_stats_process_ancestry
	196	{ raw_initial_call = {baz_mod, baz_fun, 3}
	197	, otp_initial_call = {some, {baz_otp_mod, baz_otp_fun, 2}}
	198	, otp_ancestors = {some, [Pid0, Pid1]}
	199	}
	200	, status = running
	201	, memory = 25
	202	, total_heap_size = 35
	203	, stack_size = 40
	204	, message_queue_len = 1
	205	},
697c496d SK	206	Process4 =
	207	#beam_stats_process
	208	{ pid = Pid4
	209	, registered_name = none
	210	, ancestry =
	211	#beam_stats_process_ancestry
	212	{ raw_initial_call = {baz_mod, baz_fun, 3}
	213	, otp_initial_call = {some, {baz_otp_mod, baz_otp_fun, 2}}
	214	, otp_ancestors = {some, [Pid0, Pid1]}
	215	}
	216	, status = waiting
	217	, memory = 5
	218	, total_heap_size = 10
	219	, stack_size = 15
	220	, message_queue_len = 0
	221	},
7786d23b SK	222	Processes =
	223	#beam_stats_processes
	224	{ individual_stats =
	225	[ Process1
	226	, Process2
	227	, Process3
697c496d	228	, Process4
7786d23b	229	]
697c496d	230	, count_all = 4
7786d23b SK	231	, count_exiting = 0
	232	, count_garbage_collecting = 0
	233	, count_registered = 1
	234	, count_runnable = 0
	235	, count_running = 3
	236	, count_suspended = 0
697c496d	237	, count_waiting = 1
7786d23b SK	238	},
	239	ETSTableStatsFoo =
	240	#beam_stats_ets_table
	241	{ id = foo
	242	, name = foo
	243	, size = 5
	244	, memory = 40
	245	},
c37a5360	246	ETSTableStatsBarA =
7786d23b SK	247	#beam_stats_ets_table
	248	{ id = 37
	249	, name = bar
	250	, size = 8
	251	, memory = 64
	252	},
c37a5360 SK	253	ETSTableStatsBarB =
	254	#beam_stats_ets_table
	255	{ id = 38
	256	, name = bar
	257	, size = 8
	258	, memory = 64
	259	},
7786d23b SK	260	meck:expect(beam_stats_source, erlang_memory,
	261	fun () -> [{mem_type_foo, 1}, {mem_type_bar, 2}, {mem_type_baz, 3}] end),
	262	meck:expect(beam_stats_source, erlang_node,
	263	fun () -> 'node_foo@host_bar' end),
	264	meck:expect(beam_stats_source, erlang_registered,
	265	fun () -> [reg_name_foo] end),
	266	meck:expect(beam_stats_source, erlang_statistics,
f4dcce84 SK	267	fun (io ) -> {{input, IOBytesIn}, {output, IOBytesOut}}
f4dcce84 SK	268	; (context_switches) -> {ContextSwitches, 0}
7786d23b SK	269	; (reductions ) -> {0, 9} % 1st element is unused
	270	; (run_queue ) -> 17
	271	end
	272	),
	273	meck:expect(beam_stats_source, ets_all,
c37a5360	274	fun () -> [foo, 37, 38] end),
7786d23b SK	275	meck:expect(beam_stats_source, erlang_system_info,
	276	fun (wordsize) -> 8 end),
	277	meck:expect(beam_stats_source, ets_info,
	278	fun (foo, memory) -> 5
	279	; (foo, name ) -> foo
	280	; (foo, size ) -> 5
c37a5360	281
7786d23b SK	282	; (37 , memory) -> 8
	283	; (37 , name ) -> bar
	284	; (37 , size ) -> 8
c37a5360 SK	285
	286	; (38 , memory) -> 8
	287	; (38 , name ) -> bar
	288	; (38 , size ) -> 8
7786d23b SK	289	end
	290	),
	291	meck:expect(beam_stats_source, erlang_processes,
697c496d	292	fun () -> [Pid1, Pid2, Pid3, Pid4] end),
7786d23b SK	293	meck:expect(beam_stats_source, os_timestamp,
	294	fun () -> {1, 2, 3} end),
	295	meck:expect(beam_stats_source, erlang_process_info,
	296	fun (P, K) when P == Pid1 ->
	297	case K
	298	of dictionary -> {K, []}
	299	; initial_call -> {K, {foo_mod, foo_fun, 2}}
	300	; registered_name -> {K, reg_name_foo}
	301	; status -> {K, running}
	302	; memory -> {K, 15}
	303	; total_heap_size -> {K, 25}
	304	; stack_size -> {K, 10}
	305	; message_queue_len -> {K, 0}
	306	end
	307	; (P, K) when P == Pid2 ->
	308	case K
	309	of dictionary -> {K, []}
	310	; initial_call -> {K, {bar_mod, bar_fun, 1}}
	311	; registered_name -> []
	312	; status -> {K, running}
	313	; memory -> {K, 25}
	314	; total_heap_size -> {K, 35}
	315	; stack_size -> {K, 40}
	316	; message_queue_len -> {K, 5}
	317	end
	318	; (P, K) when P == Pid3 ->
	319	Dict =
	320	[ {'$initial_call', {baz_otp_mod, baz_otp_fun, 2}}
	321	, {'$ancestors' , [Pid0, Pid1]}
	322	],
	323	case K
	324	of dictionary -> {K, Dict}
	325	; initial_call -> {K, {baz_mod, baz_fun, 3}}
	326	; registered_name -> []
	327	; status -> {K, running}
	328	; memory -> {K, 25}
	329	; total_heap_size -> {K, 35}
	330	; stack_size -> {K, 40}
	331	; message_queue_len -> {K, 1}
	332	end
697c496d SK	333	; (P, K) when P == Pid4 ->
	334	Dict =
	335	[ {'$initial_call', {baz_otp_mod, baz_otp_fun, 2}}
	336	, {'$ancestors' , [Pid0, Pid1]}
	337	],
	338	case K
	339	of dictionary -> {K, Dict}
	340	; initial_call -> {K, {baz_mod, baz_fun, 3}}
	341	; registered_name -> []
	342	; status -> {K, waiting}
	343	; memory -> {K, 5}
	344	; total_heap_size -> {K, 10}
	345	; stack_size -> {K, 15}
	346	; message_queue_len -> {K, 0}
	347	end
7786d23b SK	348	end
7786d23b SK	349	),
f4dcce84 SK	350	#beam_stats
	351	{ timestamp = {1, 2, 3}
	352	, node_id = 'node_foo@host_bar'
	353	, memory = [{mem_type_foo, 1}, {mem_type_bar, 2}, {mem_type_baz, 3}]
	354	, io_bytes_in = IOBytesIn
	355	, io_bytes_out = IOBytesOut
	356	, context_switches = ContextSwitches
	357	, reductions = 9
	358	, run_queue = 17
c37a5360	359	, ets = [ETSTableStatsFoo, ETSTableStatsBarA, ETSTableStatsBarB]
f4dcce84 SK	360	, processes = Processes
f4dcce84 SK	361	}.