CTS: Add tests for WifiManager#calculateSignalLevel
Bug: 150236894
Test: atest android.net.wifi.cts.WifiManagerTest#testCalculateSignalLevel
Change-Id: I990dc4d0a0b8d969231eab3c74b9436ee4ef919f
diff --git a/tests/cts/net/src/android/net/wifi/cts/WifiManagerTest.java b/tests/cts/net/src/android/net/wifi/cts/WifiManagerTest.java
index 743454f..020ada8 100644
--- a/tests/cts/net/src/android/net/wifi/cts/WifiManagerTest.java
+++ b/tests/cts/net/src/android/net/wifi/cts/WifiManagerTest.java
@@ -16,6 +16,7 @@
package android.net.wifi.cts;
+import static com.google.common.truth.Truth.assertWithMessage;
import android.app.UiAutomation;
import android.content.BroadcastReceiver;
@@ -423,6 +424,33 @@
assertTrue(WifiManager.compareSignalLevel(rssiA, rssiB) > 0);
}
+ /**
+ * Test that {@link WifiManager#calculateSignalLevel(int)} returns a value in the range
+ * [0, {@link WifiManager#getMaxSignalLevel()}], and its value is monotonically increasing as
+ * the RSSI increases.
+ */
+ public void testCalculateSignalLevel() {
+ if (!WifiFeature.isWifiSupported(getContext())) {
+ // skip the test if WiFi is not supported
+ return;
+ }
+
+ int maxSignalLevel = mWifiManager.getMaxSignalLevel();
+
+ int prevSignalLevel = 0;
+ for (int rssi = -150; rssi <= 50; rssi++) {
+ int signalLevel = mWifiManager.calculateSignalLevel(rssi);
+
+ // between [0, maxSignalLevel]
+ assertWithMessage("For RSSI=%s", rssi).that(signalLevel).isAtLeast(0);
+ assertWithMessage("For RSSI=%s", rssi).that(signalLevel).isAtMost(maxSignalLevel);
+
+ // calculateSignalLevel(rssi) <= calculateSignalLevel(rssi + 1)
+ assertWithMessage("For RSSI=%s", rssi).that(signalLevel).isAtLeast(prevSignalLevel);
+ prevSignalLevel = signalLevel;
+ }
+ }
+
private static class TestLocalOnlyHotspotCallback extends WifiManager.LocalOnlyHotspotCallback {
Object hotspotLock;
WifiManager.LocalOnlyHotspotReservation reservation = null;