Add TetheringCoverageTests

Bug: 148636687
Test: atest TetheringCoverageTests
      atest TetheringTests
      atest TetheringIntegrationTests
      atest NetworkStackTests
      atest CtsTetheringTest
Change-Id: I1f2a50f16894b05e988476520ba25baba0b60d88
Merged-In: I1f2a50f16894b05e988476520ba25baba0b60d88

Tethering/tests/integration/Android.bp

@@ -13,19 +13,12 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 //
-
-android_test {
-    name: "TetheringIntegrationTests",
-    certificate: "platform",
-    platform_apis: true,
+java_defaults {
+    name: "TetheringIntegrationTestsDefaults",
     srcs: [
         "src/**/*.java",
         "src/**/*.kt",
     ],
-    test_suites: [
-        "device-tests",
-        "mts",
-    ],
     static_libs: [
         "NetworkStackApiStableLib",
         "androidx.test.rules",
@@ -44,4 +37,49 @@ android_test {
         "libdexmakerjvmtiagent",
         "libstaticjvmtiagent",
     ],
+    jarjar_rules: ":NetworkStackJarJarRules",
 }
+
+android_library {
+    name: "TetheringIntegrationTestsLib",
+    platform_apis: true,
+    defaults: ["TetheringIntegrationTestsDefaults"],
+    visibility: ["//cts/tests/tests/tethering"]
+}
+
+android_test {
+    name: "TetheringIntegrationTests",
+    platform_apis: true,
+    defaults: ["TetheringIntegrationTestsDefaults"],
+    test_suites: [
+        "device-tests",
+        "mts",
+    ],
+    compile_multilib: "both",
+}
+
+// Special version of the tethering tests that includes all tests necessary for code coverage
+// purposes. This is currently the union of TetheringTests, TetheringIntegrationTests and
+// NetworkStackTests.
+android_test {
+    name: "TetheringCoverageTests",
+    certificate: "platform",
+    platform_apis: true,
+    test_suites: ["device-tests", "mts"],
+    test_config: "AndroidTest_Coverage.xml",
+    defaults: ["libnetworkstackutilsjni_deps"],
+    static_libs: [
+        "NetworkStackTestsLib",
+        "TetheringTestsLib",
+        "TetheringIntegrationTestsLib",
+    ],
+    jni_libs: [
+        // For mockito extended
+        "libdexmakerjvmtiagent",
+        "libstaticjvmtiagent",
+        // For NetworkStackUtils included in NetworkStackBase
+        "libnetworkstackutilsjni",
+    ],
+    compile_multilib: "both",
+    manifest: "AndroidManifest_coverage.xml",
+}

Tethering/tests/integration/AndroidManifest.xml

@@ -17,7 +17,6 @@
           package="com.android.networkstack.tethering.tests.integration">
 
     <uses-permission android:name="android.permission.INTERNET"/>
-    <uses-permission android:name="android.permission.TETHER_PRIVILEGED"/>
 
     <application android:debuggable="true">
         <uses-library android:name="android.test.runner" />

Tethering/tests/integration/AndroidManifest_coverage.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2020 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          xmlns:tools="http://schemas.android.com/tools"
+          package="com.android.networkstack.tethering.tests.coverage">
+
+    <application tools:replace="android:label"
+                 android:debuggable="true"
+                 android:label="Tethering coverage tests">
+        <uses-library android:name="android.test.runner" />
+    </application>
+    <instrumentation android:name="androidx.test.runner.AndroidJUnitRunner"
+                     android:targetPackage="com.android.networkstack.tethering.tests.coverage"
+                     android:label="Tethering coverage tests">
+    </instrumentation>
+</manifest>

Tethering/tests/integration/AndroidTest_Coverage.xml

@@ -0,0 +1,12 @@
+<configuration description="Runs coverage tests for Tethering">
+    <target_preparer class="com.android.tradefed.targetprep.TestAppInstallSetup">
+        <option name="test-file-name" value="TetheringCoverageTests.apk" />
+    </target_preparer>
+
+    <option name="test-tag" value="TetheringCoverageTests" />
+    <test class="com.android.tradefed.testtype.AndroidJUnitTest" >
+        <option name="package" value="com.android.networkstack.tethering.tests.coverage" />
+        <option name="runner" value="androidx.test.runner.AndroidJUnitRunner" />
+        <option name="hidden-api-checks" value="false"/>
+    </test>
+</configuration>

Tethering/tests/integration/src/android/net/EthernetTetheringTest.java

@@ -18,6 +18,7 @@ package android.net;
 
 import static android.Manifest.permission.MANAGE_TEST_NETWORKS;
 import static android.Manifest.permission.NETWORK_SETTINGS;
+import static android.Manifest.permission.TETHER_PRIVILEGED;
 import static android.net.TetheringManager.TETHERING_ETHERNET;
 
 import static org.junit.Assert.assertEquals;
@@ -109,7 +110,8 @@ public class EthernetTetheringTest {
         mTetheredInterfaceRequester = new TetheredInterfaceRequester(mHandler, mEm);
         // Needed to create a TestNetworkInterface, to call requestTetheredInterface, and to receive
         // tethered client callbacks.
-        mUiAutomation.adoptShellPermissionIdentity(MANAGE_TEST_NETWORKS, NETWORK_SETTINGS);
+        mUiAutomation.adoptShellPermissionIdentity(
+                MANAGE_TEST_NETWORKS, NETWORK_SETTINGS, TETHER_PRIVILEGED);
     }
 
     private void cleanUp() throws Exception {

Tethering/tests/unit/Android.bp

@@ -14,36 +14,30 @@
 // limitations under the License.
 //
 
-android_test {
-    name: "TetheringTests",
-    certificate: "platform",
+java_defaults {
+    name: "TetheringTestsDefaults",
     srcs: [
         "src/**/*.java",
         "src/**/*.kt",
     ],
-    test_suites: [
-        "device-tests",
-        "mts",
-    ],
-    compile_multilib: "both",
     static_libs: [
+        "TetheringApiCurrentLib",
         "androidx.test.rules",
         "frameworks-base-testutils",
-        "net-tests-utils",
         "mockito-target-extended-minus-junit4",
-        "TetheringApiCurrentLib",
+        "net-tests-utils",
         "testables",
     ],
     // TODO(b/147200698) change sdk_version to module-current and
     // remove framework-minus-apex, ext, and framework-res
     sdk_version: "core_platform",
     libs: [
-        "framework-minus-apex",
-        "ext",
-        "framework-res",
         "android.test.runner",
         "android.test.base",
         "android.test.mock",
+        "ext",
+        "framework-minus-apex",
+        "framework-res",
         "framework-tethering",
     ],
     jni_libs: [
@@ -53,3 +47,25 @@ android_test {
     ],
     jarjar_rules: "jarjar-rules.txt",
 }
+
+// Library containing the unit tests. This is used by the coverage test target to pull in the
+// unit test code. It is not currently used by the tests themselves because all the build
+// configuration needed by the tests is in the TetheringTestsDefaults rule.
+android_library {
+    name: "TetheringTestsLib",
+    defaults: ["TetheringTestsDefaults"],
+    visibility: [
+        "//frameworks/base/packages/Tethering/tests/integration",
+    ]
+}
+
+android_test {
+    name: "TetheringTests",
+    certificate: "platform",
+    test_suites: [
+        "device-tests",
+        "mts",
+    ],
+    defaults: ["TetheringTestsDefaults"],
+    compile_multilib: "both",
+}