1 files changed, 65 insertions, 0 deletions
diff --git a/lib/dialyzer/test/indent_SUITE_data/src/queue_use.erl b/lib/dialyzer/test/indent_SUITE_data/src/queue_use.erl
new file mode 100644
index 0000000000..8d46bdb989
--- /dev/null
+++ b/lib/dialyzer/test/indent_SUITE_data/src/queue_use.erl
@@ -0,0 +1,65 @@
+-module(queue_use).
+
+-export([ok1/0, ok2/0]).
+-export([wrong1/0, wrong2/0, wrong3/0, wrong4/0, wrong5/0, wrong6/0, wrong7/0, wrong8/0]).
+
+ok1() ->
+    queue:is_empty(queue:new()).
+
+ok2() ->
+    Q0 = queue:new(),
+    Q1 = queue:in(42, Q0),
+    {{value, 42}, Q2} = queue:out(Q1),
+    queue:is_empty(Q2).
+
+%%--------------------------------------------------
+
+wrong1() ->
+    queue:is_empty({[],[]}).
+
+wrong2() ->
+    Q0 = {[],[]},
+    queue:in(42, Q0).
+
+wrong3() ->
+    Q0 = queue:new(),
+    Q1 = queue:in(42, Q0),
+    {[42],Q2} = Q1,
+    Q2.
+
+wrong4() ->
+    Q0 = queue:new(),
+    Q1 = queue:in(42, Q0),
+    Q1 =:= {[42],[]}.
+
+wrong5() ->
+    {F, _R} = queue:new(),
+    F.
+
+wrong6() ->
+    {{value, 42}, Q2} = queue:out({[42],[]}),
+    Q2.
+
+%%--------------------------------------------------
+
+-record(db, {p, q}).
+
+wrong7() ->
+    add_unique(42, #db{p = [], q = queue:new()}).
+
+add_unique(E, DB) ->
+    case is_in_queue(E, DB) of
+	true -> DB;
+	false -> DB#db{q = queue:in(E, DB#db.q)}
+    end.
+
+is_in_queue(P, #db{q = {L1,L2}}) ->
+    lists:member(P, L1) orelse lists:member(P, L2).
+
+%%--------------------------------------------------
+
+wrong8() ->
+    tuple_queue({42, gazonk}).
+
+tuple_queue({F, Q}) ->
+    queue:in(F, Q).