diff --git a/authfs/tests/java/src/com/android/fs/AuthFsBenchmarks.java b/authfs/tests/java/src/com/android/fs/AuthFsBenchmarks.java
index f84785b..af2c892 100644
--- a/authfs/tests/java/src/com/android/fs/AuthFsBenchmarks.java
+++ b/authfs/tests/java/src/com/android/fs/AuthFsBenchmarks.java
@@ -33,6 +33,7 @@
 import com.android.tradefed.testtype.junit4.BaseHostJUnit4Test;
 import com.android.tradefed.testtype.junit4.BeforeClassWithInfo;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -64,7 +65,7 @@
 
     @BeforeClassWithInfo
     public static void beforeClassWithDevice(TestInformation testInfo) throws Exception {
-        AuthFsTestRule.setUpClass(testInfo);
+        AuthFsTestRule.setUpAndroid(testInfo);
     }
 
     @Before
@@ -73,12 +74,17 @@
                 MetricsProcessor.getMetricPrefix(
                         getDevice().getProperty("debug.hypervisor.metrics_tag"));
         mMetricsProcessor = new MetricsProcessor(metricsPrefix + "authfs/");
+        AuthFsTestRule.startMicrodroid();
+    }
+
+    @After
+    public void tearDown() throws DeviceNotAvailableException {
+        AuthFsTestRule.shutdownMicrodroid();
     }
 
     @AfterClassWithInfo
-    public static void afterClassWithDevice(TestInformation testInfo)
-            throws DeviceNotAvailableException {
-        AuthFsTestRule.tearDownClass(testInfo);
+    public static void afterClassWithDevice(TestInformation testInfo) {
+        AuthFsTestRule.tearDownAndroid();
     }
 
     @Test
diff --git a/authfs/tests/java/src/com/android/fs/AuthFsHostTest.java b/authfs/tests/java/src/com/android/fs/AuthFsHostTest.java
index 14dc88b..c4169f6 100644
--- a/authfs/tests/java/src/com/android/fs/AuthFsHostTest.java
+++ b/authfs/tests/java/src/com/android/fs/AuthFsHostTest.java
@@ -72,7 +72,8 @@
 
     @BeforeClassWithInfo
     public static void beforeClassWithDevice(TestInformation testInfo) throws Exception {
-        AuthFsTestRule.setUpClass(testInfo);
+        AuthFsTestRule.setUpAndroid(testInfo);
+        AuthFsTestRule.startMicrodroid();
         sAndroid = AuthFsTestRule.getAndroid();
         sMicrodroid = AuthFsTestRule.getMicrodroid();
     }
@@ -80,7 +81,8 @@
     @AfterClassWithInfo
     public static void afterClassWithDevice(TestInformation testInfo)
             throws DeviceNotAvailableException {
-        AuthFsTestRule.tearDownClass(testInfo);
+        AuthFsTestRule.shutdownMicrodroid();
+        AuthFsTestRule.tearDownAndroid();
     }
 
     @Test
diff --git a/authfs/tests/java/src/com/android/fs/AuthFsTestRule.java b/authfs/tests/java/src/com/android/fs/AuthFsTestRule.java
index 045ecc0..a9fdd10 100644
--- a/authfs/tests/java/src/com/android/fs/AuthFsTestRule.java
+++ b/authfs/tests/java/src/com/android/fs/AuthFsTestRule.java
@@ -91,7 +91,7 @@
 
     private final ExecutorService mThreadPool = Executors.newCachedThreadPool();
 
-    static void setUpClass(TestInformation testInfo) throws Exception {
+    static void setUpAndroid(TestInformation testInfo) throws Exception {
         assertNotNull(testInfo.getDevice());
         if (!(testInfo.getDevice() instanceof TestDevice)) {
             CLog.w("Unexpected type of ITestDevice. Skipping.");
@@ -108,35 +108,9 @@
             CLog.i("Microdroid not supported. Skipping.");
             return;
         }
-
-        // For each test case, boot and adb connect to a new Microdroid
-        CLog.i("Starting the shared VM");
-        sMicrodroidDevice =
-                MicrodroidBuilder.fromFile(
-                                findTestFile(testInfo.getBuildInfo(), TEST_APK_NAME),
-                                VM_CONFIG_PATH_IN_APK)
-                        .debugLevel("full")
-                        .build((TestDevice) androidDevice);
-
-        // From this point on, we need to tear down the Microdroid instance
-        sMicrodroid = new CommandRunner(sMicrodroidDevice);
-
-        sMicrodroid.runForResult("mkdir -p " + MOUNT_DIR);
-
-        // Root because authfs (started from shell in this test) currently require root to open
-        // /dev/fuse and mount the FUSE.
-        assertThat(sMicrodroidDevice.enableAdbRoot()).isTrue();
     }
 
-    static void tearDownClass(TestInformation testInfo) throws DeviceNotAvailableException {
-        assertNotNull(sAndroid);
-
-        if (sMicrodroid != null) {
-            CLog.i("Shutting down shared VM");
-            ((TestDevice) testInfo.getDevice()).shutdownMicrodroid(sMicrodroid.getDevice());
-            sMicrodroid = null;
-        }
-
+    static void tearDownAndroid() {
         sAndroid = null;
     }
 
@@ -157,6 +131,33 @@
         return sMicrodroidDevice;
     }
 
+    static void startMicrodroid() throws DeviceNotAvailableException {
+        CLog.i("Starting the shared VM");
+        assertThat(sMicrodroidDevice).isNull();
+        sMicrodroidDevice =
+                MicrodroidBuilder.fromFile(
+                                findTestFile(sTestInfo.getBuildInfo(), TEST_APK_NAME),
+                                VM_CONFIG_PATH_IN_APK)
+                        .debugLevel("full")
+                        .build(getDevice());
+
+        // From this point on, we need to tear down the Microdroid instance
+        sMicrodroid = new CommandRunner(sMicrodroidDevice);
+
+        sMicrodroid.runForResult("mkdir -p " + MOUNT_DIR);
+
+        // Root because authfs (started from shell in this test) currently require root to open
+        // /dev/fuse and mount the FUSE.
+        assertThat(sMicrodroidDevice.enableAdbRoot()).isTrue();
+    }
+
+    static void shutdownMicrodroid() throws DeviceNotAvailableException {
+        assertNotNull(sMicrodroidDevice);
+        getDevice().shutdownMicrodroid(sMicrodroidDevice);
+        sMicrodroidDevice = null;
+        sMicrodroid = null;
+    }
+
     @Override
     public Statement apply(final Statement base, Description description) {
         return super.apply(