Add vts for getSignalStrength_1_4

Test: VTS
Bug: 124013054
Change-Id: Ia23391970d2c333b128ab8d2990d231e62748789
diff --git a/radio/1.4/vts/functional/radio_hidl_hal_api.cpp b/radio/1.4/vts/functional/radio_hidl_hal_api.cpp
index 52eb277..c395df6 100644
--- a/radio/1.4/vts/functional/radio_hidl_hal_api.cpp
+++ b/radio/1.4/vts/functional/radio_hidl_hal_api.cpp
@@ -439,6 +439,26 @@
                                      {RadioError::NONE, RadioError::INVALID_ARGUMENTS}));
     }
 }
+
+/*
+ * Test IRadio.getSignalStrength_1_4() for the response returned.
+ */
+TEST_F(RadioHidlTest_v1_4, getSignalStrength_1_4) {
+    serial = GetRandomSerialNumber();
+
+    radio_v1_4->getSignalStrength_1_4(serial);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_4->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_v1_4->rspInfo.serial);
+
+    if (cardStatus.base.base.cardState == CardState::ABSENT) {
+        EXPECT_EQ(RadioError::NONE, radioRsp_v1_4->rspInfo.error);
+    } else if (cardStatus.base.base.cardState == CardState::PRESENT) {
+        ASSERT_TRUE(CheckAnyOfErrors(radioRsp_v1_4->rspInfo.error,
+                                     {RadioError::NONE, RadioError::RADIO_NOT_AVAILABLE}));
+    }
+}
+
 /*
  * Test IRadio.setupDataCall_1_4() for the response returned.
  */