cychiu8 commented on code in PR #10840:
URL: https://github.com/apache/ozone/pull/10840#discussion_r3671048584
##########
hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/conf/ConfigurationFieldsTests.java:
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@@ -668,6 +677,44 @@ public void testDefaultValueCollision() {
LOG.info("Checked {} default values for collision.", valuesChecked);
}
+ }
+
+ /**
+ * Verifies no default value in the XML embeds a line break, which would
+ * corrupt the runtime string (see HDDS-8046). Legitimate cases opt out via
+ * {@link #xmlPropsAllowedToContainNewline}. Unlike the comparison tests,
this
+ * reads the raw XML directly so it is not narrowed by
+ * {@code xmlPropsToSkipCompare}/{@code xmlPrefixToSkipCompare}: every
property
+ * is checked, and the only exemption is {@link
#xmlPropsAllowedToContainNewline}.
+ */
+ @Test
+ public void testXmlValuesHaveNoEmbeddedNewlines() {
+ assertNotNull(xmlFilename);
+ Configuration conf = new Configuration(false);
+ conf.setAllowNullValueProperties(true);
+ conf.addResource(xmlFilename);
Review Comment:
Thanks @adoroszlai again.
I've switched the test to `OzoneConfiguration`, moved it to
`TestOzoneConfigurationFields`, and dropped the `ozone-default.xml `reference
from the failure message.
It now covers the generated `<module>-default.xml` files too.
Loading via `OzoneConfiguration` also brings in Hadoop's `core-default.xml`,
which legitimately ships four multi-line values:
- `fs.s3a.aws.credentials.provider`
- `hadoop.security.sensitive-config-keys`
- `hadoop.system.tags`
- `hadoop.tags.system`
I've added those to `xmlPropsAllowedToContainNewline` with a comment.
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