Github user njayaram2 commented on a diff in the pull request:
https://github.com/apache/madlib/pull/178#discussion_r136632178
--- Diff: src/ports/postgres/modules/graph/test/hits.sql_in ---
@@ -0,0 +1,81 @@
+/* -----------------------------------------------------------------------
*//**
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ *//*
----------------------------------------------------------------------- */
+
+DROP TABLE IF EXISTS vertex, "EDGE";
+CREATE TABLE vertex(
+ id INTEGER
+ );
+CREATE TABLE "EDGE"(
+ src INTEGER,
+ dest INTEGER,
+ user_id INTEGER
+ );
+INSERT INTO vertex VALUES
+(0),
+(1),
+(2),
+(3),
+(4),
+(5),
+(6);
+INSERT INTO "EDGE" VALUES
+(0, 1, 1),
+(0, 2, 1),
+(0, 4, 1),
+(1, 2, 1),
+(1, 3, 1),
+(2, 3, 1),
+(2, 5, 1),
+(2, 6, 1),
+(3, 0, 1),
+(4, 0, 1),
+(5, 6, 1),
+(6, 3, 1),
+(0, 1, 2),
+(0, 2, 2),
+(0, 4, 2),
+(1, 2, 2),
+(1, 3, 2),
+(2, 3, 2),
+(3, 0, 2),
+(4, 0, 2),
+(5, 6, 2),
+(6, 3, 2);
+
+DROP TABLE IF EXISTS hits_out, hits_out_summary;
+SELECT hits(
+ 'vertex', -- Vertex table
+ 'id', -- Vertex id column
+ '"EDGE"', -- "EDGE" table
+ 'src=src, dest=dest', -- "EDGE" args
+ 'hits_out', -- Output table of HITS
+ 3 -- Max number of iteration
+ );
+
+-- Test Case: when max_iter=3, the authority score for node 0 should be
close to 0.502727
+SELECT assert(relative_error(authority, 0.502727) < 0.000001,
+ 'HITS: calculation for authority score is wrong'
+ ) FROM hits_out WHERE id=0;
+
+-- Test Case: when max_iter=3, the authority score for node 0 should be
close to 0.496400
+SELECT assert(relative_error(hub, 0.496400) < 0.000001,
+ 'HITS: calculation for hub score is wrong'
+ ) FROM hits_out WHERE id=0;
--- End diff --
Please end with a new line.
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