Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/1033#discussion_r37514284
--- Diff:
flink-staging/flink-gelly-scala/src/test/scala/org/apache/flink/graph/scala/test/operations/MapEdgesITCase.scala
---
@@ -92,6 +92,30 @@ MultipleProgramsTestBase(mode) {
"5,1,52\n"
}
+ @Test
+ @throws(classOf[Exception])
+ def testWithSameValueAlgorithm {
+ val env: ExecutionEnvironment =
ExecutionEnvironment.getExecutionEnvironment
+ val graph: Graph[Long, Long, Long] = Graph.fromDataSet(TestGraphUtils
+ .getLongLongVertexData(env),
TestGraphUtils.getLongLongEdgeData(env), env)
+
+ class SameValueAlgorithm extends GraphAlgorithm[Long, Long, Long] {
+ override def run(graph: Graph[Long, Long, Long]): Graph[Long, Long,
Long] = {
+ graph.mapEdges(edge => edge.getValue + 1)
+ }
+ }
+
+ graph.run(new
SameValueAlgorithm).getEdgesAsTuple3().writeAsCsv(resultPath)
--- End diff --
If I'm not mistaken, then writing to files while running on Travis can
cause sometimes test failures. Therefore, we've started using the `collect`
method and then to compare the results in your case with
`compareResultAsTuples`. That way, we only work on data kept in memory. In the
current master version of the `MapEdgesITCase` this is already the case. Maybe
you haven't rebased on the latest master?
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