jihoonson commented on a change in pull request #7933: #7858 Throwing
UnsupportedOperationException from ImmutableDruidDataSource's equals() and
hashCode() methods
URL: https://github.com/apache/incubator-druid/pull/7933#discussion_r302215099
##########
File path:
server/src/test/java/org/apache/druid/server/http/DataSourcesResourceTest.java
##########
@@ -182,9 +182,9 @@ public void testGetFullQueryableDataSources()
Set<ImmutableDruidDataSource> result = (Set<ImmutableDruidDataSource>)
response.getEntity();
Assert.assertEquals(200, response.getStatus());
Assert.assertEquals(2, result.size());
- Assert.assertEquals(
-
listDataSources.stream().map(DruidDataSource::toImmutableDruidDataSource).collect(Collectors.toSet()),
- new HashSet<>(result)
+ TestUtils.assertEqualsImmutableDruidDataSource(
+
listDataSources.stream().map(DruidDataSource::toImmutableDruidDataSource).collect(Collectors.toList()),
Review comment:
The "equality" is checked differently for `ArrayList` and `HashSet`. Set is
not an ordered collection, so ordering is not considered when comparing two
sets while List is an ordered one. Please check the code of
`ArrayList.equals()` and `HashSet.equals()` for details.
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