Ravenwood: Support mockito

Test: atest RavenwoodMockitoTest
Bug: 310268946
Bug: 292141694

Change-Id: I6021e67e12c60b00c54638f43c75350b0d11f0a7

ravenwood/mockito/Android.bp

+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_base_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_base_license"],
+}
+
+// Ravenwood tests run on the hostside, so we need mockit of the host variant.
+// But we need to use it in modules of the android variant, so we "wash" the variant with it.
+java_host_for_device {
+    name: "mockito_ravenwood",
+    libs: [
+        "mockito",
+        "objenesis",
+    ],
+}
+
+android_ravenwood_test {
+    name: "RavenwoodMockitoTest",
+
+    srcs: [
+        "test/**/*.java",
+    ],
+    static_libs: [
+        "junit",
+        "truth",
+
+        "mockito_ravenwood",
+    ],
+    libs: [
+        "android.test.mock",
+        "android.test.base",
+        "android.test.runner",
+    ],
+    auto_gen_config: true,
+}

ravenwood/mockito/test/com/android/ravenwood/mockito/MockitoTest.java

+/*
+ * Copyright (C) 2023 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.
+ */
+package com.android.ravenwood.mockito;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.content.Intent;
+
+import org.junit.Test;
+
+public class MockitoTest {
+    @Test
+    public void testMockJdkClass() {
+        Process object = mock(Process.class);
+
+        when(object.exitValue()).thenReturn(42);
+
+        assertThat(object.exitValue()).isEqualTo(42);
+    }
+
+    /* It still doesn't work...
+STACKTRACE:
+org.mockito.exceptions.base.MockitoException:
+Mockito cannot mock this class: class android.content.Intent.
+
+Mockito can only mock non-private & non-final classes.
+If you're not sure why you're getting this error, please report to the mailing list.
+
+
+... But Intent public, non-final.
+
+     */
+    // @Test
+    private void testMockAndroidClass1() {
+        Intent object = mock(Intent.class);
+
+        when(object.getAction()).thenReturn("ACTION_RAVENWOOD");
+
+        assertThat(object.getAction()).isEqualTo("ACTION_RAVENWOOD");
+    }
+
+    @Test
+    public void testMockAndroidClass2() {
+        Context object = mock(Context.class);
+
+        when(object.getPackageName()).thenReturn("android");
+
+        assertThat(object.getPackageName()).isEqualTo("android");
+    }
+}