Test suites for Dialyzer

This is a transcription of most of the cvs.srv.it.uu.se:/hipe repository
dialyzer_tests into test suites that use the test server framework.

See README for information on how to use the included scripts for
modifications and updates.

When testing Dialyzer it's important that several OTP modules
are included in the plt. The suites takes care of that too.

1 files changed, 172 insertions, 0 deletions

diff --git a/lib/dialyzer/test/opaque_tests_SUITE_data/src/inf_loop1.erl b/lib/dialyzer/test/opaque_tests_SUITE_data/src/inf_loop1.erl
new file mode 100644
index 0000000000..0dff16cf14
--- /dev/null
+++ b/lib/dialyzer/test/opaque_tests_SUITE_data/src/inf_loop1.erl
@@ -0,0 +1,172 @@
+%% -*- erlang-indent-level: 2 -*-
+%%----------------------------------------------------------------------------
+%% Non-sensical (i.e., stripped-down) program that sends the analysis
+%% into an infinite loop. The #we.es field was originally a gb_tree()
+%% but the programmer declared it as an array in order to change it to
+%% that data type instead. In the file, there are two calls to function
+%% gb_trees:get/2 which seem to be the ones responsible for sending the
+%% analysis into an infinite loop. Currently, these calls are marked and
+%% have been changed to gbee_trees:get/2 in order to be able to see that
+%% the analysis works if these two calls are taken out of the picture.
+%%----------------------------------------------------------------------------
+-module(inf_loop1).
+
+-export([command/1]).
+
+-record(we, {id,
+	     es = array:new() :: array(),
+	     vp,
+	     mirror = none}).
+-record(edge, {vs,ve,a = none,b = none,lf,rf,ltpr,ltsu,rtpr,rtsu}).
+
+command(St) ->
+  State = drag_mode(offset_region),
+  SetupSt = wings_sel_conv:more(St),
+  Tvs = wings_sel:fold(fun(Faces, #we{id = Id} = We, Acc) ->
+			   FaceRegions = wings_sel:face_regions(Faces, We),
+			   {AllVs0,VsData} =
+			     collect_offset_regions_data(FaceRegions, We, [], []),
+			   AllVs = ordsets:from_list(AllVs0),
+			   [{Id,{AllVs,offset_regions_fun(VsData, State)}}|Acc]
+                       end,
+                       [],
+                       SetupSt),
+    wings_drag:setup(Tvs, 42, [], St).
+
+drag_mode(Type) ->
+    {Mode,Norm} = wings_pref:get_value(Type, {average,loop}),
+    {Type,Mode,Norm}.
+
+collect_offset_regions_data([Faces|Regions], We, AllVs, VsData) ->
+  {FaceNormTab,OuterEdges,RegVs} =
+    some_fake_module:faces_data_0(Faces, We, [], [], []),
+  {LoopNorm,LoopVsData,LoopVs} =
+    offset_regions_loop_data(OuterEdges, Faces, We, FaceNormTab),
+  Vs = RegVs -- LoopVs,
+  RegVsData = vertex_normals(Vs, FaceNormTab, We, LoopVsData),
+  collect_offset_regions_data(Regions, We, RegVs ++ AllVs,
+			      [{LoopNorm,RegVsData}|VsData]);
+collect_offset_regions_data([], _, AllVs, VsData) ->
+  {AllVs,VsData}.
+
+offset_regions_loop_data(Edges, Faces, We, FNtab) ->
+  EdgeSet = gb_sets:from_list(Edges),
+  offset_loop_data_0(EdgeSet, Faces, We, FNtab, [], [], []).
+
+offset_loop_data_0(EdgeSet0, Faces, We, FNtab, LNorms, VData0, Vs0) ->
+  case gb_sets:is_empty(EdgeSet0) of
+    false ->
+      {Edge,EdgeSet1} = gb_sets:take_smallest(EdgeSet0),
+      {EdgeSet,VData,Links,LoopNorm,Vs} =
+	offset_loop_data_1(Edge, EdgeSet1, Faces, We, FNtab, VData0, Vs0),
+      offset_loop_data_0(EdgeSet, Faces, We, FNtab,
+			 [{Links,LoopNorm}|LNorms], VData, Vs);
+    true ->
+      AvgLoopNorm = average_loop_norm(LNorms),
+      {AvgLoopNorm,VData0,Vs0}
+  end.
+
+offset_loop_data_1(Edge, EdgeSet, _Faces,
+                   #we{es = Etab, vp = Vtab} = We, FNtab, VData, Vs) ->
+  #edge{vs = Va, ve = Vb, lf = Lf, ltsu = NextLeft} = gb_trees:get(Edge, Etab),
+  VposA = gb_trees:get(Va, Vtab),
+  VposB = gb_trees:get(Vb, Vtab),
+  VDir = e3d_vec:sub(VposB, VposA),
+  FNorm = wings_face:normal(Lf, We),
+  EdgeData = gb_trees:get(NextLeft, Etab),
+  offset_loop_data_2(NextLeft, EdgeData, Va, VposA, Lf, Edge, We, FNtab,
+		     EdgeSet, VDir, [], [FNorm], VData, [], Vs, 0).
+
+offset_loop_data_2(CurE, #edge{vs = Va, ve = Vb, lf = PrevFace,
+			       rtsu = NextEdge, ltsu = IfCurIsMember},
+                   Vb, VposB, PrevFace, LastE,
+                   #we{mirror = M} = We,
+                   FNtab, EdgeSet0, VDir, EDir0, VNorms0, VData0, VPs0, Vs0,
+                   Links) ->
+  Mirror = M == PrevFace,
+  offset_loop_is_member(Mirror, Vb, Va, VposB, CurE, IfCurIsMember, VNorms0,
+			NextEdge, EdgeSet0, VDir, EDir0, FNtab, PrevFace,
+			LastE, We, VData0, VPs0, Vs0, Links).
+
+offset_loop_is_member(Mirror, V1, V2, Vpos1, CurE, NextE, VNorms0, NEdge,
+                      EdgeSet0, VDir, EDir0, FNtab, PFace, LastE, We,
+                      VData0, VPs0, Vs0, Links) ->
+  #we{es = Etab, vp = Vtab} = We,
+  Vpos2 = gb_trees:get(V2, Vtab),
+  Dir = e3d_vec:sub(Vpos2, Vpos1),
+  NextVDir = e3d_vec:neg(Dir),
+  EdgeSet = gb_sets:delete(CurE, EdgeSet0),
+  EdgeData = gbee_trees:get(NextE, Etab), %% HERE
+  [FNorm|_] = VNorms0,
+  VData = offset_loop_data_3(Mirror, V1, Vpos1, VNorms0, NEdge, VDir,
+			     Dir, EDir0, FNtab, We, VData0),
+  VPs = [Vpos1|VPs0],
+  Vs = [V1|Vs0],
+  offset_loop_data_2(NextE, EdgeData, V2, Vpos2, PFace, LastE, We, FNtab,
+		     EdgeSet, NextVDir, [], [FNorm], VData, VPs, Vs, Links + 1).
+
+offset_loop_data_3(false, V, Vpos, VNorms0, NextEdge,
+                   VDir, Dir, EDir0, FNtab, We, VData0) ->
+  #we{es = Etab} = We,
+  VNorm = e3d_vec:norm(e3d_vec:add(VNorms0)),
+  NV = wings_vertex:other(V, gbee_trees:get(NextEdge, Etab)), %% HERE
+  ANorm = vertex_normal(NV, FNtab, We),
+  EDir = some_fake_module:average_edge_dir(VNorm, VDir, Dir, EDir0),
+  AvgDir = some_fake_module:evaluate_vdata(VDir, Dir, VNorm),
+  ScaledDir = some_fake_module:along_edge_scale_factor(VDir, Dir, EDir, ANorm),
+  [{V,{Vpos,AvgDir,EDir,ScaledDir}}|VData0].
+
+average_loop_norm([{_,LNorms}]) ->
+  e3d_vec:norm(LNorms);
+average_loop_norm([{LinksA,LNormA},{LinksB,LNormB}]) ->
+  case LinksA < LinksB of
+    true ->
+      e3d_vec:norm(e3d_vec:add(e3d_vec:neg(LNormA), LNormB));
+    false ->
+      e3d_vec:norm(e3d_vec:add(e3d_vec:neg(LNormB), LNormA))
+  end;
+average_loop_norm(LNorms) ->
+  LoopNorms = [Norm || {_,Norm} <- LNorms],
+  e3d_vec:norm(e3d_vec:neg(e3d_vec:add(LoopNorms))).
+
+vertex_normals([V|Vs], FaceNormTab, #we{vp = Vtab, mirror = M} = We, Acc) ->
+  FaceNorms =
+    wings_vertex:fold(fun(_, Face, _, A) when Face == M ->
+			  [e3d_vec:neg(wings_face:normal(M, We))|A];
+			 (_, Face, _, A) ->
+			  [gb_trees:get(Face, FaceNormTab)|A]
+		      end, [], V, We),
+  VNorm = e3d_vec:norm(e3d_vec:add(FaceNorms)),
+  Vpos = gb_trees:get(V, Vtab),
+  vertex_normals(Vs, FaceNormTab, We, [{V,{Vpos,VNorm}}|Acc]);
+vertex_normals([], _, _, Acc) ->
+  Acc.
+
+vertex_normal(V, FaceNormTab, #we{mirror = M} = We) ->
+  wings_vertex:fold(fun(_, Face, _, A) when Face == M ->
+			[e3d_vec:neg(wings_face:normal(Face, We))|A];
+		       (_, Face, _, A) ->
+			N = gb_trees:get(Face, FaceNormTab),
+			case e3d_vec:is_zero(N) of
+			  true -> A;
+			  false -> [N|A]
+			end
+		    end, [], V, We).
+
+offset_regions_fun(OffsetData, {_,Solution,_} = State) ->
+  fun(new_mode_data, {NewState,_}) ->
+      offset_regions_fun(OffsetData, NewState);
+     ([Dist,_,_,Bump|_], A) ->
+      lists:foldl(fun({LoopNormal,VsData}, VsAcc0) ->
+		      lists:foldl(fun({V,{Vpos0,VNorm}}, VsAcc) ->
+				      [{V,Vpos0}|VsAcc];
+				     ({V,{Vpos0,Dir,EDir,ScaledEDir}}, VsAcc) ->
+				      Vec = case Solution of
+					      average -> Dir;
+					      along_edges -> EDir;
+					      scaled -> ScaledEDir
+					    end,
+				      [{V,Vpos0}|VsAcc]
+				  end, VsAcc0, VsData)
+		  end, A, OffsetData)
+  end.