message: match_edge issue on isolated item
diff: @@ -304,7 +304,8 @@ TYPED_TEST(AmgxPgm, MatchEdge)
  snb_val[1] = 0;
  snb_val[2] = 0;
  snb_val[3] = 1;
  - snb_val[4] = 2;
  + // isolated item
  + snb_val[4] = 4;
  gko::kernels::reference::amgx_pgm::match_edge(this->exec, snb, agg);
  @@ -312,7 +313,8 @@ TYPED_TEST(AmgxPgm, MatchEdge)
  ASSERT_EQ(agg_val[1], -1);
  ASSERT_EQ(agg_val[2], 0);
  ASSERT_EQ(agg_val[3], -1);
  - ASSERT_EQ(agg_val[4], -1);
  + // isolated item should be self aggregation
  + ASSERT_EQ(agg_val[4], 4);
  }
  