[centrality] added edge_cases.pg and added license

pgtap/metrics/betweennessCentrality/edge_cases.pg

@@ -0,0 +1,94 @@
+/*PGR-GNU*****************************************************************
+
+Copyright (c) 2018  pgRouting developers
+Mail: project@pgrouting.org
+
+------
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ ********************************************************************PGR-GNU*/
+BEGIN;
+
+
+
+SELECT finish();
+ROLLBACK;
+
+/*
+/* -- q1 */
+SELECT * FROM pgr_betweennessCentrality(
+'SELECT id, source, target, cost, reverse_cost
+FROM edges where id < 5'
+) ORDER BY vid;
+/* Implicit Cases (directed) */
+SELECT * FROM pgr_betweennessCentrality(
+  'SELECT id, source, target, cost, reverse_cost
+  FROM edges where id < 2'
+) ORDER BY vid;
+
+SELECT * FROM pgr_betweennessCentrality(
+  'SELECT id, source, target, cost, reverse_cost
+  FROM edges where id < 3'
+) ORDER BY vid;
+
+SELECT * FROM pgr_betweennessCentrality(
+  'SELECT id, source, target, cost, reverse_cost
+  FROM edges where id < 4'
+) ORDER BY vid;
+
+SELECT * FROM pgr_betweennessCentrality(
+  'SELECT id, source, target, cost, reverse_cost
+  FROM edges where id < 5'
+) ORDER BY vid;
+
+/* Explicit Cases (undirected) */
+SELECT * FROM pgr_betweennessCentrality(
+  'SELECT id, source, target, cost, reverse_cost
+  FROM edges where id < 2', directed => false
+) ORDER BY vid;
+
+SELECT * FROM pgr_betweennessCentrality(
+  'SELECT id, source, target, cost, reverse_cost
+  FROM edges where id < 3', directed => false
+) ORDER BY vid;
+
+SELECT * FROM pgr_betweennessCentrality(
+  'SELECT id, source, target, cost, reverse_cost
+  FROM edges where id < 4', directed => false
+) ORDER BY vid;
+
+SELECT * FROM pgr_betweennessCentrality(
+  'SELECT id, source, target, cost, reverse_cost
+  FROM edges where id < 5', directed => false
+) ORDER BY vid;
+
+/* Explicit Cases (directed) */
+SELECT * FROM pgr_betweennessCentrality(
+  'SELECT id, source, target, cost, reverse_cost
+  FROM edges where id < 2', directed => true 
+) ORDER BY vid;
+
+SELECT * FROM pgr_betweennessCentrality(
+  'SELECT id, source, target, cost, reverse_cost
+  FROM edges where id < 3', directed => true
+) ORDER BY vid;
+
+SELECT * FROM pgr_betweennessCentrality(
+  'SELECT id, source, target, cost, reverse_cost
+  FROM edges where id < 4', directed => true
+) ORDER BY vid;
+
+SELECT * FROM pgr_betweennessCentrality(
+  'SELECT id, source, target, cost, reverse_cost
+  FROM edges where id < 5', directed => true
+) ORDER BY vid;
+*/