[james-project] 06/15: JAMES-3289 fix flacky tests

[bt...@apache.org]

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btellier pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/james-project.git

commit 0345c32c2e7f56dcada0a378221a935a4c904ec7
Author: Rémi Kowalski <rk...@linagora.com>
AuthorDate: Tue Jun 30 10:23:41 2020 +0200

    JAMES-3289 fix flacky tests
    
    add a delay in the throwing behavior to avoid the reactor bug defined in https://github.com/reactor/reactor-core/issues/1941
    it is the source of instability in our tests, as in the case of a first failing first publisher in a merge operation,
     its error would not be propagated and the result of the merge will be a successful Publisher instead of the expected failing one.
---
 .../test/java/org/apache/james/backends/cassandra/Scenario.java   | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/backends-common/cassandra/src/test/java/org/apache/james/backends/cassandra/Scenario.java b/backends-common/cassandra/src/test/java/org/apache/james/backends/cassandra/Scenario.java
index 9acabc2..f5ddbf7 100644
--- a/backends-common/cassandra/src/test/java/org/apache/james/backends/cassandra/Scenario.java
+++ b/backends-common/cassandra/src/test/java/org/apache/james/backends/cassandra/Scenario.java
@@ -41,6 +41,14 @@ public class Scenario {
     @FunctionalInterface
     interface Behavior {
         Behavior THROW = (session, statement) -> {
+            //JAMES-3289 add a delay in the throwing behavior to avoid the reactor bug defined in https://github.com/reactor/reactor-core/issues/1941
+            //which cause flacky tests.
+            //once this bug is solved this delay could be removed.
+            try {
+                Thread.sleep(50);
+            } catch (InterruptedException e) {
+                //DO NOTHING
+            }
             throw new InjectedFailureException();
         };
 


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