diff --git a/tests/unit/java/android/net/NetworkTemplateTest.kt b/tests/unit/java/android/net/NetworkTemplateTest.kt
index 2db77f2..572c1ef 100644
--- a/tests/unit/java/android/net/NetworkTemplateTest.kt
+++ b/tests/unit/java/android/net/NetworkTemplateTest.kt
@@ -46,6 +46,7 @@
 import android.net.NetworkTemplate.buildTemplateMobileWithRatType
 import android.net.NetworkTemplate.buildTemplateWifi
 import android.net.NetworkTemplate.buildTemplateWifiWildcard
+import android.net.NetworkTemplate.normalize
 import android.os.Build
 import android.telephony.TelephonyManager
 import com.android.testutils.DevSdkIgnoreRule
@@ -63,6 +64,7 @@
 
 private const val TEST_IMSI1 = "imsi1"
 private const val TEST_IMSI2 = "imsi2"
+private const val TEST_IMSI3 = "imsi3"
 private const val TEST_SSID1 = "ssid1"
 private const val TEST_SSID2 = "ssid2"
 
@@ -493,4 +495,45 @@
                 identSsid = TEST_SSID1)
         matchOemManagedIdent(TYPE_WIFI, MATCH_WIFI_WILDCARD, identSsid = TEST_SSID1)
     }
+
+    @Test
+    fun testNormalize() {
+        var mergedImsiList = listOf(arrayOf(TEST_IMSI1, TEST_IMSI2))
+        val identMobileImsi1 = buildNetworkIdentity(mockContext,
+                buildMobileNetworkState(TEST_IMSI1), false /* defaultNetwork */,
+                TelephonyManager.NETWORK_TYPE_UMTS)
+        val identMobileImsi2 = buildNetworkIdentity(mockContext,
+                buildMobileNetworkState(TEST_IMSI2), false /* defaultNetwork */,
+                TelephonyManager.NETWORK_TYPE_UMTS)
+        val identMobileImsi3 = buildNetworkIdentity(mockContext,
+                buildMobileNetworkState(TEST_IMSI3), false /* defaultNetwork */,
+                TelephonyManager.NETWORK_TYPE_UMTS)
+        val identWifiImsi1Ssid1 = buildNetworkIdentity(
+                mockContext, buildWifiNetworkState(TEST_IMSI1, TEST_SSID1), true, 0)
+        val identWifiImsi2Ssid1 = buildNetworkIdentity(
+                mockContext, buildWifiNetworkState(TEST_IMSI2, TEST_SSID1), true, 0)
+        val identWifiImsi3Ssid1 = buildNetworkIdentity(
+                mockContext, buildWifiNetworkState(TEST_IMSI3, TEST_SSID1), true, 0)
+
+        normalize(buildTemplateMobileAll(TEST_IMSI1), mergedImsiList).also {
+            it.assertMatches(identMobileImsi1)
+            it.assertMatches(identMobileImsi2)
+            it.assertDoesNotMatch(identMobileImsi3)
+        }
+        normalize(buildTemplateCarrierMetered(TEST_IMSI1), mergedImsiList).also {
+            it.assertMatches(identMobileImsi1)
+            it.assertMatches(identMobileImsi2)
+            it.assertDoesNotMatch(identMobileImsi3)
+        }
+        normalize(buildTemplateWifi(TEST_SSID1, TEST_IMSI1), mergedImsiList).also {
+            it.assertMatches(identWifiImsi1Ssid1)
+            it.assertMatches(identWifiImsi2Ssid1)
+            it.assertDoesNotMatch(identWifiImsi3Ssid1)
+        }
+        normalize(buildTemplateMobileWildcard(), mergedImsiList).also {
+            it.assertMatches(identMobileImsi1)
+            it.assertMatches(identMobileImsi2)
+            it.assertMatches(identMobileImsi3)
+        }
+    }
 }