[CTS] Add test for RTT S API

Bug: 189161860
Bug: 189161174
Test: CTS WifiRttTest
Change-Id: Ib38d4f199ef0dc9ed8bfb55b1ecf680e2a4a0790
diff --git a/tests/tests/wifi/src/android/net/wifi/rtt/cts/WifiRttTest.java b/tests/tests/wifi/src/android/net/wifi/rtt/cts/WifiRttTest.java
index 65b2f8b..fca5cbc 100644
--- a/tests/tests/wifi/src/android/net/wifi/rtt/cts/WifiRttTest.java
+++ b/tests/tests/wifi/src/android/net/wifi/rtt/cts/WifiRttTest.java
@@ -88,8 +88,15 @@
         builder.addAccessPoint(testAp);
         if (WifiBuildCompat.isPlatformOrWifiModuleAtLeastS(getContext())) {
             builder.setRttBurstSize(RangingRequest.getMaxRttBurstSize());
+            assertTrue(RangingRequest.getDefaultRttBurstSize()
+                    >= RangingRequest.getMinRttBurstSize());
+            assertTrue(RangingRequest.getDefaultRttBurstSize()
+                    <= RangingRequest.getMaxRttBurstSize());
         }
         RangingRequest request = builder.build();
+        if (WifiBuildCompat.isPlatformOrWifiModuleAtLeastS(getContext())) {
+            assertEquals(1, request.getRttResponders().size());
+        }
 
         List<RangingResult> allResults = new ArrayList<>();
         int numFailures = 0;