Add VTS test for V1_6::IWifiChip::getAvailableModes_1_6

Bug: 220222963
Test: atest VtsHalWifiV1_6TargetTest
Change-Id: I76908ae0e69f8e1b07a654062b1bd0122e0dd910
diff --git a/wifi/1.6/vts/functional/wifi_chip_hidl_test.cpp b/wifi/1.6/vts/functional/wifi_chip_hidl_test.cpp
index 54fb721..d1d4336 100644
--- a/wifi/1.6/vts/functional/wifi_chip_hidl_test.cpp
+++ b/wifi/1.6/vts/functional/wifi_chip_hidl_test.cpp
@@ -95,6 +95,15 @@
     EXPECT_EQ(WifiStatusCode::SUCCESS, statusNonEmpty.first.code);
 }
 
+/* getAvailableModes_1_6:
+ * Ensures that a call to getAvailableModes_1_6 will return with a success status code.
+ */
+TEST_P(WifiChipHidlTest, getAvailableModes_1_6) {
+    const auto& status_and_modes = HIDL_INVOKE(wifi_chip_, getAvailableModes_1_6);
+    EXPECT_EQ(WifiStatusCode::SUCCESS, status_and_modes.first.code);
+    EXPECT_LT(0u, status_and_modes.second.size());
+}
+
 GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(WifiChipHidlTest);
 INSTANTIATE_TEST_SUITE_P(PerInstance, WifiChipHidlTest,
                          testing::ValuesIn(android::hardware::getAllHalInstanceNames(