postproc: fix handling of --complete

* src/tgbaalgos/postproc.cc: Here.
* src/tgbatest/readsave.test: Test it.

src/tgbaalgos/postproc.cc

@@ -125,7 +125,11 @@ namespace spot
   postprocessor::run(tgba_digraph_ptr a, const ltl::formula* f)
   {
     if (type_ == TGBA && PREF_ == Any && level_ == Low)
-      return a;
+      {
+	if (COMP_)
+	  a = tgba_complete(a);
+	return a;
+      }
 
     if (simul_ < 0)
       simul_ = (level_ == Low) ? 1 : 3;
@@ -171,7 +175,7 @@ namespace spot
 	    if (m->num_states() < a->num_states())
 	      a = m;
 	  }
-	if (COMP_ == Complete)
+	if (COMP_)
 	  a = tgba_complete(a);
 	return a;
       }
@@ -180,6 +184,8 @@ namespace spot
       {
 	if (type_ == BA)
 	  a = do_degen(a);
+	if (COMP_ == Complete)
+	  a = tgba_complete(a);
 	return a;
       }
 
@@ -381,7 +387,7 @@ namespace spot
 
     sim = dba ? dba : sim;
 
-    if (COMP_ == Complete)
+    if (COMP_)
       sim = tgba_complete(sim);
 
     return sim;

src/tgbatest/readsave.test

@@ -286,7 +286,7 @@ EOF
 diff output expected
 
 
-$autfilt -H <<EOF | $autfilt --dot=vcsn >output
+cat >input <<EOF
 HOA: v1
 States: 4
 Start: 2
@@ -306,6 +306,7 @@ State: 3 "s3"
 [0] 1
 --END--
 EOF
+$autfilt -H input | $autfilt --dot=vcsn >output
 
 cat >expected <<EOF
 digraph G {
@@ -334,3 +335,5 @@ digraph G {
 EOF
 
 diff output expected
+
+test 1 = `$autfilt -H input --complete | $autfilt --is-complete --count`