Fix LocalTranslogTests.testWithRandomException test scenario (#6748) (#…

…7263)

* fix #6625



* fix #6625 - reverse assertEquals params



---------


(cherry picked from commit 4afc914)

Signed-off-by: Valentin Mitrofanov <mitrofmep@gmail.com>
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

server/src/test/java/org/opensearch/index/translog/LocalTranslogTests.java

@@ -2908,7 +2908,9 @@ ChannelFactory getChannelFactory() {
             void deleteReaderFiles(TranslogReader reader) {
                 if (fail.fail()) {
                     // simulate going OOM and dying just at the wrong moment.
-                    throw new RuntimeException("simulated");
+                    RuntimeException e = new RuntimeException("simulated");
+                    tragedy.setTragicException(e);
+                    throw e;
                 } else {
                     super.deleteReaderFiles(reader);
                 }
@@ -3230,13 +3232,13 @@ public void testWithRandomException() throws IOException {
                     syncedDocs.addAll(unsynced);
                     unsynced.clear();
                 } catch (TranslogException | MockDirectoryWrapper.FakeIOException ex) {
-                    assertEquals(failableTLog.getTragicException(), ex);
+                    assertEquals(ex, failableTLog.getTragicException());
                 } catch (IOException ex) {
                     assertEquals(ex.getMessage(), "__FAKE__ no space left on device");
-                    assertEquals(failableTLog.getTragicException(), ex);
+                    assertEquals(ex, failableTLog.getTragicException());
                 } catch (RuntimeException ex) {
                     assertEquals(ex.getMessage(), "simulated");
-                    assertEquals(failableTLog.getTragicException(), ex);
+                    assertEquals(ex, failableTLog.getTragicException());
                 } finally {
                     Checkpoint checkpoint = Translog.readCheckpoint(config.getTranslogPath());
                     if (checkpoint.numOps == unsynced.size() + syncedDocs.size()) {