HADOOP-19066. Run FIPS test for valid bucket locations (ADDENDUM) (#6624)

FIPS is only supported in north america AWS regions; relevant tests in
ITestS3AEndpointRegion are skipped for buckets with different endpoints/regions.

hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3AEndpointRegion.java

@@ -51,6 +51,7 @@ import static org.apache.hadoop.fs.s3a.Constants.ENDPOINT;
 import static org.apache.hadoop.fs.s3a.Constants.FIPS_ENDPOINT;
 import static org.apache.hadoop.fs.s3a.Constants.PATH_STYLE_ACCESS;
 import static org.apache.hadoop.fs.s3a.DefaultS3ClientFactory.ERROR_ENDPOINT_WITH_FIPS;
+import static org.apache.hadoop.fs.s3a.S3ATestUtils.assume;
 import static org.apache.hadoop.fs.s3a.S3ATestUtils.removeBaseAndBucketOverrides;
 import static org.apache.hadoop.fs.s3a.test.PublicDatasetTestUtils.DEFAULT_REQUESTER_PAYS_BUCKET_NAME;
 import static org.apache.hadoop.io.IOUtils.closeStream;
@@ -76,6 +77,12 @@ public class ITestS3AEndpointRegion extends AbstractS3ATestBase {
 
   private static final String US_GOV_EAST_1 = "us-gov-east-1";
 
+  private static final String US_REGION_PREFIX = "us-";
+
+  private static final String CA_REGION_PREFIX = "ca-";
+
+  private static final String US_DUAL_STACK_PREFIX = "dualstack.us-";
+
   /**
    * If anyone were ever to create a bucket with this UUID pair it would break the tests.
    */
@@ -435,8 +442,14 @@ public class ITestS3AEndpointRegion extends AbstractS3ATestBase {
   public void testCentralEndpointAndNullRegionFipsWithCRUD() throws Throwable {
     describe("Access the test bucket using central endpoint and"
         + " null region and fips enabled, perform file system CRUD operations");
-    final Configuration conf = getConfiguration();
 
+    final String bucketLocation = getFileSystem().getBucketLocation();
+    assume("FIPS can be enabled to access buckets from US or Canada endpoints only",
+        bucketLocation.startsWith(US_REGION_PREFIX)
+            || bucketLocation.startsWith(CA_REGION_PREFIX)
+            || bucketLocation.startsWith(US_DUAL_STACK_PREFIX));
+
+    final Configuration conf = getConfiguration();
     final Configuration newConf = new Configuration(conf);
 
     removeBaseAndBucketOverrides(