Disable warning checks in k-NN test case (#1442) (#1471) (#1472)

* Disable warning checks in k-NN test case

Signed-off-by: Junqiu Lei <junqiu@amazon.com>
(cherry picked from commit 9e28957)

Co-authored-by: Junqiu Lei <junqiu@amazon.com>
(cherry picked from commit 29279dc)

Co-authored-by: opensearch-trigger-bot[bot] <98922864+opensearch-trigger-bot[bot]@users.noreply.github.com>

src/test/java/org/opensearch/knn/KNNTestCase.java

@@ -53,6 +53,13 @@ public void tearDown() throws Exception {
         openMocks.close();
     }
 
+    @Override
+    protected boolean enableWarningsCheck() {
+        // Disable warnings check to avoid flaky tests, more details at:
+        // https://github.com/opensearch-project/k-NN/issues/1392
+        return false;
+    }
+
     public void resetState() {
         // Reset all of the counters
         for (KNNCounter knnCounter : KNNCounter.values()) {

src/test/java/org/opensearch/knn/index/KNNSettingsTests.java

@@ -51,7 +51,6 @@ public void testGetSettingValueFromConfig() {
             .getSettingValue(KNNSettings.KNN_MEMORY_CIRCUIT_BREAKER_LIMIT)).getKb();
         mockNode.close();
         assertEquals(expectedKNNCircuitBreakerLimit, actualKNNCircuitBreakerLimit);
-        assertWarnings();
     }
 
     @SneakyThrows
@@ -69,10 +68,6 @@ public void testGetSettingValueDefault() {
             actualKNNCircuitBreakerLimit
 
         );
-        // set warning for deprecation of index.store.hybrid.mmap.extensions as expected temporarily, need to work on proper strategy of
-        // switching to new setting in core
-        // no-jdk distributions expected warning is a workaround for running tests locally
-        assertWarnings();
     }
 
     @SneakyThrows
@@ -87,7 +82,6 @@ public void testFilteredSearchAdvanceSetting_whenNoValuesProvidedByUsers_thenDef
         Integer filteredSearchThreshold = KNNSettings.getFilteredExactSearchThreshold(INDEX_NAME);
         mockNode.close();
         assertEquals(KNNSettings.ADVANCED_FILTERED_EXACT_SEARCH_THRESHOLD_DEFAULT_VALUE, filteredSearchThreshold);
-        assertWarnings();
     }
 
     @SneakyThrows
@@ -133,7 +127,6 @@ public void testFilteredSearchAdvanceSetting_whenValuesProvidedByUsers_thenValid
         mockNode.close();
         assertEquals(userDefinedThreshold, filteredSearchThreshold);
         assertEquals(userDefinedThresholdMinValue, filteredSearchThresholdMinValue);
-        assertWarnings();
     }
 
     @SneakyThrows
@@ -148,7 +141,6 @@ public void testGetEfSearch_whenNoValuesProvidedByUsers_thenDefaultSettingsUsed(
         Integer efSearchValue = KNNSettings.getEfSearchParam(INDEX_NAME);
         mockNode.close();
         assertEquals(KNNSettings.INDEX_KNN_DEFAULT_ALGO_PARAM_EF_SEARCH, efSearchValue);
-        assertWarnings();
     }
 
     @SneakyThrows
@@ -168,7 +160,6 @@ public void testGetEfSearch_whenEFSearchValueSetByUser_thenReturnValue() {
         int efSearchValue = KNNSettings.getEfSearchParam(INDEX_NAME);
         mockNode.close();
         assertEquals(userProvidedEfSearch, efSearchValue);
-        assertWarnings();
     }
 
     private Node createMockNode(Map<String, Object> configSettings) throws IOException {
@@ -199,14 +190,4 @@ private static Settings.Builder baseSettings() {
             .put(NetworkModule.TRANSPORT_TYPE_KEY, getTestTransportType())
             .put(dataNode());
     }
-
-    private void assertWarnings() {
-        // set warning for deprecation of index.store.hybrid.mmap.extensions as expected temporarily, need to work on proper strategy of
-        // switching to new setting in core
-        // no-jdk distributions expected warning is a workaround for running tests locally
-        assertWarnings(
-            "[index.store.hybrid.mmap.extensions] setting was deprecated in OpenSearch and will be removed in a future release! See the breaking changes documentation for the next major version.",
-            "no-jdk distributions that do not bundle a JDK are deprecated and will be removed in a future release"
-        );
-    }
 }