diff --git a/authfs/TEST_MAPPING b/authfs/TEST_MAPPING
index d0c0b09..14f1824 100644
--- a/authfs/TEST_MAPPING
+++ b/authfs/TEST_MAPPING
@@ -2,6 +2,9 @@
   "presubmit": [
     {
       "name": "authfs_device_test_src_lib"
+    },
+    {
+      "name": "AuthFsHostTest"
     }
   ]
 }
diff --git a/authfs/tests/AndroidTest.xml b/authfs/tests/AndroidTest.xml
index 8f940f6..6100ab9 100644
--- a/authfs/tests/AndroidTest.xml
+++ b/authfs/tests/AndroidTest.xml
@@ -18,18 +18,11 @@
     <!-- Need root to start virtualizationservice -->
     <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer"/>
 
-    <!-- virtualizationservice doesn't have access to shell_data_file. Instead of giving it
-          a test-only permission, run it without selinux -->
+    <!-- Still need to define SELinux policy for authfs and fd_server properly. -->
     <target_preparer class="com.android.tradefed.targetprep.DisableSELinuxTargetPreparer"/>
 
-    <!-- Basic checks that the device has all the prerequisites. -->
     <target_preparer class="com.android.tradefed.targetprep.RunCommandTargetPreparer">
         <option name="throw-if-cmd-fail" value="true" />
-        <!-- Make sure kernel has FUSE enabled. -->
-        <option name="run-command" value="ls /dev/fuse" />
-        <!-- Make sure necessary executables are installed. -->
-        <option name="run-command" value="ls /apex/com.android.virt/bin/fd_server" />
-        <option name="run-command" value="ls /apex/com.android.virt/bin/authfs" />
         <!-- Prepare test directory. -->
         <option name="run-command" value="mkdir -p /data/local/tmp/authfs/mnt" />
         <option name="teardown-command" value="rm -rf /data/local/tmp/authfs" />
diff --git a/authfs/tests/java/src/com/android/fs/AuthFsHostTest.java b/authfs/tests/java/src/com/android/fs/AuthFsHostTest.java
index 426b333..6e1c890 100644
--- a/authfs/tests/java/src/com/android/fs/AuthFsHostTest.java
+++ b/authfs/tests/java/src/com/android/fs/AuthFsHostTest.java
@@ -18,18 +18,26 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
+import static org.junit.Assume.assumeFalse;
 
 import android.platform.test.annotations.RootPermissionTest;
+import android.virt.test.CommandRunner;
 import android.virt.test.VirtualizationTestCaseBase;
 
 import com.android.compatibility.common.util.PollingCheck;
 import com.android.tradefed.device.DeviceNotAvailableException;
+import com.android.tradefed.device.ITestDevice;
+import com.android.tradefed.invoker.TestInformation;
 import com.android.tradefed.log.LogUtil.CLog;
 import com.android.tradefed.testtype.DeviceJUnit4ClassRunner;
+import com.android.tradefed.testtype.junit4.AfterClassWithInfo;
+import com.android.tradefed.testtype.junit4.BeforeClassWithInfo;
 import com.android.tradefed.util.CommandResult;
 
 import org.junit.After;
+import org.junit.AssumptionViolatedException;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -37,7 +45,6 @@
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 
-// TODO move to Virtualization/tests/hostside/
 @RootPermissionTest
 @RunWith(DeviceJUnit4ClassRunner.class)
 public final class AuthFsHostTest extends VirtualizationTestCaseBase {
@@ -55,50 +62,87 @@
     private static final String AUTHFS_BIN = "/system/bin/authfs";
 
     /** Plenty of time for authfs to get ready */
-    private static final int AUTHFS_INIT_TIMEOUT_MS = 1500;
+    private static final int AUTHFS_INIT_TIMEOUT_MS = 3000;
 
     /** FUSE's magic from statfs(2) */
     private static final String FUSE_SUPER_MAGIC_HEX = "65735546";
 
-    private ExecutorService mThreadPool;
-    private String mCid;
+    private static CommandRunner sAndroid;
+    private static String sCid;
+    private static boolean sAssumptionFailed;
 
-    @Before
-    public void setUp() throws DeviceNotAvailableException {
-        testIfDeviceIsCapable();
+    private ExecutorService mThreadPool = Executors.newCachedThreadPool();
 
-        cleanUpTestFiles();
+    @BeforeClassWithInfo
+    public static void beforeClassWithDevice(TestInformation testInfo)
+            throws DeviceNotAvailableException {
+        assertNotNull(testInfo.getDevice());
+        ITestDevice androidDevice = testInfo.getDevice();
+        sAndroid = new CommandRunner(androidDevice);
 
-        prepareVirtualizationTestSetup();
+        try {
+            testIfDeviceIsCapable(androidDevice);
+        } catch (AssumptionViolatedException e) {
+            // NB: The assumption exception is NOT handled by the test infra when it is thrown from
+            // a class method (see b/37502066). This has not only caused the loss of log, but also
+            // prevented the test cases to be reported at all and thus confused the test infra.
+            //
+            // Since we want to avoid the big overhead to start the VM repeatedly on CF, let's catch
+            // AssumptionViolatedException and emulate it artifitially.
+            CLog.e("Assumption failed: " + e);
+            sAssumptionFailed = true;
+            return;
+        }
 
-        mThreadPool = Executors.newCachedThreadPool();
+        prepareVirtualizationTestSetup(androidDevice);
 
         // For each test case, boot and adb connect to a new Microdroid
+        CLog.i("Starting the shared VM");
         final String apkName = "MicrodroidTestApp.apk";
         final String packageName = "com.android.microdroid.test";
         final String configPath = "assets/vm_config.json"; // path inside the APK
-        mCid = startMicrodroid(apkName, packageName, configPath, /* debug */ false);
-        adbConnectToMicrodroid(mCid);
+        sCid =
+                startMicrodroid(
+                        androidDevice,
+                        testInfo.getBuildInfo(),
+                        apkName,
+                        packageName,
+                        configPath,
+                        /* debug */ false);
+        adbConnectToMicrodroid(androidDevice, sCid);
 
         // Root because authfs (started from shell in this test) currently require root to open
         // /dev/fuse and mount the FUSE.
         rootMicrodroid();
     }
 
-    @After
-    public void tearDown() throws DeviceNotAvailableException {
-        if (mCid != null) {
-            shutdownMicrodroid(mCid);
-            mCid = null;
+    @AfterClassWithInfo
+    public static void afterClassWithDevice(TestInformation testInfo)
+            throws DeviceNotAvailableException {
+        assertNotNull(sAndroid);
+
+        if (sCid != null) {
+            CLog.i("Shutting down shared VM");
+            shutdownMicrodroid(sAndroid.getDevice(), sCid);
+            sCid = null;
         }
 
-        tryRunOnAndroid("killall fd_server");
-        cleanUpTestFiles();
-        cleanUpVirtualizationTestSetup();
+        cleanUpVirtualizationTestSetup(sAndroid.getDevice());
+        sAndroid = null;
     }
 
-    private void cleanUpTestFiles() throws DeviceNotAvailableException {
-        tryRunOnAndroid("rm -f " + TEST_DIR + "/output");
+    @Before
+    public void setUp() {
+        assumeFalse(sAssumptionFailed);
+    }
+
+    @After
+    public void tearDown() throws DeviceNotAvailableException {
+        sAndroid.tryRun("killall fd_server");
+        sAndroid.tryRun("rm -f " + TEST_DIR + "/output");
+
+        tryRunOnMicrodroid("killall authfs");
+        tryRunOnMicrodroid("umount " + MOUNT_DIR);
     }
 
     @Test
@@ -194,7 +238,7 @@
 
         // Action
         // Tampering with the first 2 4K block of the backing file.
-        runOnAndroid("dd if=/dev/zero of=" + backendPath + " bs=1 count=8192");
+        sAndroid.run("dd if=/dev/zero of=" + backendPath + " bs=1 count=8192");
 
         // Verify
         // Write to a block partially requires a read back to calculate the new hash. It should fail
@@ -274,7 +318,7 @@
     }
 
     private String computeFileHashOnAndroid(String path) throws DeviceNotAvailableException {
-        String result = runOnAndroid("sha256sum " + path);
+        String result = sAndroid.run("sha256sum " + path);
         String[] tokens = result.split("\\s");
         if (tokens.length > 0) {
             return tokens[0];
@@ -320,7 +364,7 @@
                 () -> {
                     try {
                         CLog.i("Starting fd_server");
-                        CommandResult result = getDevice().executeShellV2Command(cmd);
+                        CommandResult result = sAndroid.runForResult(cmd);
                         CLog.w("fd_server has stopped: " + result);
                     } catch (DeviceNotAvailableException e) {
                         CLog.e("Error running fd_server", e);
diff --git a/tests/hostside/helper/java/android/virt/test/CommandRunner.java b/tests/hostside/helper/java/android/virt/test/CommandRunner.java
new file mode 100644
index 0000000..696c89a
--- /dev/null
+++ b/tests/hostside/helper/java/android/virt/test/CommandRunner.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2021 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 android.virt.test;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.fail;
+import static org.junit.Assume.assumeThat;
+
+import com.android.tradefed.device.DeviceNotAvailableException;
+import com.android.tradefed.device.ITestDevice;
+import com.android.tradefed.log.LogUtil.CLog;
+import com.android.tradefed.util.CommandResult;
+import com.android.tradefed.util.CommandStatus;
+
+import java.util.Arrays;
+
+import javax.annotation.Nonnull;
+
+/** A helper class to provide easy way to run commands on a test device. */
+public class CommandRunner {
+
+    /** Default timeout. 30 sec because Microdroid is extremely slow on GCE-on-CF. */
+    private static final long DEFAULT_TIMEOUT = 30000;
+
+    private ITestDevice mDevice;
+
+    public CommandRunner(@Nonnull ITestDevice device) {
+        mDevice = device;
+    }
+
+    public ITestDevice getDevice() {
+        return mDevice;
+    }
+
+    public String run(String... cmd) throws DeviceNotAvailableException {
+        CommandResult result = runForResult(cmd);
+        if (result.getStatus() != CommandStatus.SUCCESS) {
+            fail(join(cmd) + " has failed: " + result);
+        }
+        return result.getStdout().trim();
+    }
+
+    public String tryRun(String... cmd) throws DeviceNotAvailableException {
+        CommandResult result = runForResult(cmd);
+        if (result.getStatus() == CommandStatus.SUCCESS) {
+            return result.getStdout().trim();
+        } else {
+            CLog.d(join(cmd) + " has failed (but ok): " + result);
+            return null;
+        }
+    }
+
+    public String runWithTimeout(long timeoutMillis, String... cmd)
+            throws DeviceNotAvailableException {
+        CommandResult result =
+                mDevice.executeShellV2Command(
+                        join(cmd), timeoutMillis, java.util.concurrent.TimeUnit.MILLISECONDS);
+        if (result.getStatus() != CommandStatus.SUCCESS) {
+            fail(join(cmd) + " has failed: " + result);
+        }
+        return result.getStdout().trim();
+    }
+
+    public CommandResult runForResult(String... cmd) throws DeviceNotAvailableException {
+        return mDevice.executeShellV2Command(join(cmd));
+    }
+
+    public void assumeSuccess(String... cmd) throws DeviceNotAvailableException {
+        assumeThat(runForResult(cmd).getStatus(), is(CommandStatus.SUCCESS));
+    }
+
+    private static String join(String... strs) {
+        return String.join(" ", Arrays.asList(strs));
+    }
+}
diff --git a/tests/hostside/helper/java/android/virt/test/VirtualizationTestCaseBase.java b/tests/hostside/helper/java/android/virt/test/VirtualizationTestCaseBase.java
index 2d55a9c..fef8864 100644
--- a/tests/hostside/helper/java/android/virt/test/VirtualizationTestCaseBase.java
+++ b/tests/hostside/helper/java/android/virt/test/VirtualizationTestCaseBase.java
@@ -20,10 +20,11 @@
 import static org.junit.Assert.assertThat;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
-import static org.junit.Assume.assumeThat;
 
 import com.android.compatibility.common.tradefed.build.CompatibilityBuildHelper;
+import com.android.tradefed.build.IBuildInfo;
 import com.android.tradefed.device.DeviceNotAvailableException;
+import com.android.tradefed.device.ITestDevice;
 import com.android.tradefed.log.LogUtil.CLog;
 import com.android.tradefed.testtype.junit4.BaseHostJUnit4Test;
 import com.android.tradefed.util.CommandResult;
@@ -51,92 +52,63 @@
 
     private static final long MICRODROID_ADB_CONNECT_TIMEOUT_MINUTES = 5;
 
-    public void prepareVirtualizationTestSetup() throws DeviceNotAvailableException {
-        // kill stale crosvm processes
-        tryRunOnAndroid("killall", "crosvm");
+    public static void prepareVirtualizationTestSetup(ITestDevice androidDevice)
+            throws DeviceNotAvailableException {
+        CommandRunner android = new CommandRunner(androidDevice);
 
-        // Prepare the test root
-        tryRunOnAndroid("rm", "-rf", TEST_ROOT);
-        tryRunOnAndroid("mkdir", "-p", TEST_ROOT);
+        // kill stale crosvm processes
+        android.tryRun("killall", "crosvm");
 
         // disconnect from microdroid
         tryRunOnHost("adb", "disconnect", MICRODROID_SERIAL);
     }
 
-    public void cleanUpVirtualizationTestSetup() throws DeviceNotAvailableException {
+    public static void cleanUpVirtualizationTestSetup(ITestDevice androidDevice)
+            throws DeviceNotAvailableException {
+        CommandRunner android = new CommandRunner(androidDevice);
+
         // disconnect from microdroid
         tryRunOnHost("adb", "disconnect", MICRODROID_SERIAL);
 
         // kill stale VMs and directories
-        tryRunOnAndroid("killall", "crosvm");
-        tryRunOnAndroid("rm", "-rf", "/data/misc/virtualizationservice/*");
-        tryRunOnAndroid("stop", "virtualizationservice");
+        android.tryRun("killall", "crosvm");
+        android.tryRun("rm", "-rf", "/data/misc/virtualizationservice/*");
+        android.tryRun("stop", "virtualizationservice");
     }
 
-    public void testIfDeviceIsCapable() throws DeviceNotAvailableException {
+    public static void testIfDeviceIsCapable(ITestDevice androidDevice)
+            throws DeviceNotAvailableException {
+        CommandRunner android = new CommandRunner(androidDevice);
+
         // Checks the preconditions to run microdroid. If the condition is not satisfied
         // don't run the test (instead of failing)
-        skipIfFail("ls /dev/kvm");
-        skipIfFail("ls /dev/vhost-vsock");
-        skipIfFail("ls /apex/com.android.virt/bin/crosvm");
+        android.assumeSuccess("ls /dev/kvm");
+        android.assumeSuccess("ls /dev/vhost-vsock");
+        android.assumeSuccess("ls /apex/com.android.virt/bin/crosvm");
     }
 
     // Run an arbitrary command in the host side and returns the result
-    private String runOnHost(String... cmd) {
+    private static String runOnHost(String... cmd) {
         return runOnHostWithTimeout(10000, cmd);
     }
 
     // Same as runOnHost, but failure is not an error
-    private String tryRunOnHost(String... cmd) {
+    private static String tryRunOnHost(String... cmd) {
         final long timeout = 10000;
         CommandResult result = RunUtil.getDefault().runTimedCmd(timeout, cmd);
         return result.getStdout().trim();
     }
 
     // Same as runOnHost, but with custom timeout
-    private String runOnHostWithTimeout(long timeoutMillis, String... cmd) {
+    private static String runOnHostWithTimeout(long timeoutMillis, String... cmd) {
         assertTrue(timeoutMillis >= 0);
         CommandResult result = RunUtil.getDefault().runTimedCmd(timeoutMillis, cmd);
         assertThat(result.getStatus(), is(CommandStatus.SUCCESS));
         return result.getStdout().trim();
     }
 
-    // Run a shell command on Android. the default timeout is 2 min by tradefed
-    public String runOnAndroid(String... cmd) throws DeviceNotAvailableException {
-        CommandResult result = getDevice().executeShellV2Command(join(cmd));
-        if (result.getStatus() != CommandStatus.SUCCESS) {
-            fail(join(cmd) + " has failed: " + result);
-        }
-        return result.getStdout().trim();
-    }
-
-    // Same as runOnAndroid, but returns null on error.
-    public String tryRunOnAndroid(String... cmd) throws DeviceNotAvailableException {
-        CommandResult result = getDevice().executeShellV2Command(join(cmd));
-        if (result.getStatus() == CommandStatus.SUCCESS) {
-            return result.getStdout().trim();
-        } else {
-            CLog.d(join(cmd) + " has failed (but ok): " + result);
-            return null;
-        }
-    }
-
-    private String runOnAndroidWithTimeout(long timeoutMillis, String... cmd)
-            throws DeviceNotAvailableException {
-        CommandResult result =
-                getDevice()
-                        .executeShellV2Command(
-                                join(cmd),
-                                timeoutMillis,
-                                java.util.concurrent.TimeUnit.MILLISECONDS);
-        if (result.getStatus() != CommandStatus.SUCCESS) {
-            fail(join(cmd) + " has failed: " + result);
-        }
-        return result.getStdout().trim();
-    }
-
     // Run a shell command on Microdroid
-    public String runOnMicrodroid(String... cmd) {
+    public static String runOnMicrodroid(String... cmd) {
         CommandResult result = runOnMicrodroidForResult(cmd);
         if (result.getStatus() != CommandStatus.SUCCESS) {
             fail(join(cmd) + " has failed: " + result);
@@ -145,7 +117,7 @@
     }
 
     // Same as runOnMicrodroid, but returns null on error.
-    public String tryRunOnMicrodroid(String... cmd) {
+    public static String tryRunOnMicrodroid(String... cmd) {
         CommandResult result = runOnMicrodroidForResult(cmd);
         if (result.getStatus() == CommandStatus.SUCCESS) {
             return result.getStdout().trim();
@@ -155,52 +127,63 @@
         }
     }
 
-    public CommandResult runOnMicrodroidForResult(String... cmd) {
+    public static CommandResult runOnMicrodroidForResult(String... cmd) {
         final long timeout = 30000; // 30 sec. Microdroid is extremely slow on GCE-on-CF.
         return RunUtil.getDefault()
                 .runTimedCmd(timeout, "adb", "-s", MICRODROID_SERIAL, "shell", join(cmd));
     }
 
-    private String join(String... strs) {
+    private static String join(String... strs) {
         return String.join(" ", Arrays.asList(strs));
     }
 
     public File findTestFile(String name) {
+        return findTestFile(getBuild(), name);
+    }
+
+    private static File findTestFile(IBuildInfo buildInfo, String name) {
         try {
-            return (new CompatibilityBuildHelper(getBuild())).getTestFile(name);
+            return (new CompatibilityBuildHelper(buildInfo)).getTestFile(name);
         } catch (FileNotFoundException e) {
             fail("Missing test file: " + name);
             return null;
         }
     }
 
-    public String startMicrodroid(
-            String apkName, String packageName, String configPath, boolean debug)
+    public static String startMicrodroid(
+            ITestDevice androidDevice,
+            IBuildInfo buildInfo,
+            String apkName,
+            String packageName,
+            String configPath,
+            boolean debug)
             throws DeviceNotAvailableException {
+        CommandRunner android = new CommandRunner(androidDevice);
+
         // Install APK
-        File apkFile = findTestFile(apkName);
-        getDevice().installPackage(apkFile, /* reinstall */ true);
+        File apkFile = findTestFile(buildInfo, apkName);
+        androidDevice.installPackage(apkFile, /* reinstall */ true);
 
         // Get the path to the installed apk. Note that
         // getDevice().getAppPackageInfo(...).getCodePath() doesn't work due to the incorrect
         // parsing of the "=" character. (b/190975227). So we use the `pm path` command directly.
-        String apkPath = runOnAndroid("pm", "path", packageName);
+        String apkPath = android.run("pm", "path", packageName);
         assertTrue(apkPath.startsWith("package:"));
         apkPath = apkPath.substring("package:".length());
 
         // Push the idsig file to the device
-        File idsigOnHost = findTestFile(apkName + ".idsig");
+        File idsigOnHost = findTestFile(buildInfo, apkName + ".idsig");
         final String apkIdsigPath = TEST_ROOT + apkName + ".idsig";
-        getDevice().pushFile(idsigOnHost, apkIdsigPath);
+        androidDevice.pushFile(idsigOnHost, apkIdsigPath);
 
         final String instanceImg = TEST_ROOT + INSTANCE_IMG;
         final String logPath = TEST_ROOT + "log.txt";
         final String debugFlag = debug ? "--debug " : "";
 
         // Run the VM
-        runOnAndroid("start", "virtualizationservice");
+        android.run("start", "virtualizationservice");
         String ret =
-                runOnAndroid(
+                android.run(
                         VIRT_APEX + "bin/vm",
                         "run-app",
                         "--daemonize",
@@ -217,7 +200,7 @@
                 () -> {
                     try {
                         // Keep redirecting sufficiently long enough
-                        runOnAndroidWithTimeout(
+                        android.runWithTimeout(
                                 MICRODROID_BOOT_TIMEOUT_MINUTES * 60 * 1000,
                                 "logwrapper",
                                 "tail",
@@ -236,17 +219,20 @@
         return matcher.group(1);
     }
 
-    public void shutdownMicrodroid(String cid) throws DeviceNotAvailableException {
+    public static void shutdownMicrodroid(ITestDevice androidDevice, String cid)
+            throws DeviceNotAvailableException {
+        CommandRunner android = new CommandRunner(androidDevice);
+
         // Close the connection before shutting the VM down. Otherwise, b/192660485.
         tryRunOnHost("adb", "disconnect", MICRODROID_SERIAL);
-        final String serial = getDevice().getSerialNumber();
+        final String serial = androidDevice.getSerialNumber();
         tryRunOnHost("adb", "-s", serial, "forward", "--remove", "tcp:" + TEST_VM_ADB_PORT);
 
         // Shutdown the VM
-        runOnAndroid(VIRT_APEX + "bin/vm", "stop", cid);
+        android.run(VIRT_APEX + "bin/vm", "stop", cid);
     }
 
-    public void rootMicrodroid() throws DeviceNotAvailableException {
+    public static void rootMicrodroid() throws DeviceNotAvailableException {
         runOnHost("adb", "-s", MICRODROID_SERIAL, "root");
 
         // TODO(192660959): Figure out the root cause and remove the sleep. For unknown reason,
@@ -254,6 +240,12 @@
         // `adb -s $MICRODROID_SERIAL shell ...` often fails with "adb: device offline".
         try {
             Thread.sleep(1000);
+            runOnHostWithTimeout(
+                    MICRODROID_ADB_CONNECT_TIMEOUT_MINUTES * 60 * 1000,
+                    "adb",
+                    "-s",
+                    MICRODROID_SERIAL,
+                    "wait-for-device");
         } catch (InterruptedException e) {
             Thread.currentThread().interrupt();
         }
@@ -261,12 +253,13 @@
 
     // Establish an adb connection to microdroid by letting Android forward the connection to
     // microdroid. Wait until the connection is established and microdroid is booted.
-    public void adbConnectToMicrodroid(String cid) throws DeviceNotAvailableException {
+    public static void adbConnectToMicrodroid(ITestDevice androidDevice, String cid)
+            throws DeviceNotAvailableException {
         long start = System.currentTimeMillis();
         long timeoutMillis = MICRODROID_ADB_CONNECT_TIMEOUT_MINUTES * 60 * 1000;
         long elapsed = 0;
 
-        final String serial = getDevice().getSerialNumber();
+        final String serial = androidDevice.getSerialNumber();
         final String from = "tcp:" + TEST_VM_ADB_PORT;
         final String to = "vsock:" + cid + ":5555";
         runOnHost("adb", "-s", serial, "forward", from, to);
@@ -300,9 +293,4 @@
         // Check if it actually booted by reading a sysprop.
         assertThat(runOnMicrodroid("getprop", "ro.hardware"), is("microdroid"));
     }
-
-    private void skipIfFail(String command) throws DeviceNotAvailableException {
-        CommandResult result = getDevice().executeShellV2Command(command);
-        assumeThat(result.getStatus(), is(CommandStatus.SUCCESS));
-    }
 }
diff --git a/tests/hostside/java/android/virt/test/MicrodroidTestCase.java b/tests/hostside/java/android/virt/test/MicrodroidTestCase.java
index 02fb7e5..8afc287 100644
--- a/tests/hostside/java/android/virt/test/MicrodroidTestCase.java
+++ b/tests/hostside/java/android/virt/test/MicrodroidTestCase.java
@@ -35,8 +35,15 @@
     @Test
     public void testMicrodroidBoots() throws Exception {
         final String configPath = "assets/vm_config.json"; // path inside the APK
-        final String cid = startMicrodroid(APK_NAME, PACKAGE_NAME, configPath, /* debug */ false);
-        adbConnectToMicrodroid(cid);
+        final String cid =
+                startMicrodroid(
+                        getDevice(),
+                        getBuild(),
+                        APK_NAME,
+                        PACKAGE_NAME,
+                        configPath,
+                        /* debug */ false);
+        adbConnectToMicrodroid(getDevice(), cid);
 
         // Test writing to /data partition
         runOnMicrodroid("echo MicrodroidTest > /data/local/tmp/test.txt");
@@ -48,10 +55,6 @@
         final String apkIdsigPartition = "/dev/block/by-name/microdroid-apk-idsig";
         assertThat(runOnMicrodroid("ls", apkIdsigPartition), is(apkIdsigPartition));
 
-        // Check if the APK is mounted using zipfuse
-        final String mountEntry = "zipfuse on /mnt/apk type fuse.zipfuse";
-        assertThat(runOnMicrodroid("mount"), containsString(mountEntry));
-
         // Check if the native library in the APK is has correct filesystem info
         final String[] abis = runOnMicrodroid("getprop", "ro.product.cpu.abilist").split(",");
         assertThat(abis.length, is(1));
@@ -73,26 +76,27 @@
         // Check that keystore was found by the payload
         assertThat(runOnMicrodroid("getprop", "debug.microdroid.test.keystore"), is("PASS"));
 
-        shutdownMicrodroid(cid);
+        shutdownMicrodroid(getDevice(), cid);
     }
 
     @Test
     public void testDebugMode() throws Exception {
         final String configPath = "assets/vm_config.json"; // path inside the APK
         final boolean debug = true;
-        final String cid = startMicrodroid(APK_NAME, PACKAGE_NAME, configPath, debug);
-        adbConnectToMicrodroid(cid);
+        final String cid =
+                startMicrodroid(getDevice(), getBuild(), APK_NAME, PACKAGE_NAME, configPath, debug);
+        adbConnectToMicrodroid(getDevice(), cid);
 
         assertThat(runOnMicrodroid("getenforce"), is("Permissive"));
 
-        shutdownMicrodroid(cid);
+        shutdownMicrodroid(getDevice(), cid);
     }
 
     @Before
     public void setUp() throws Exception {
-        testIfDeviceIsCapable();
+        testIfDeviceIsCapable(getDevice());
 
-        prepareVirtualizationTestSetup();
+        prepareVirtualizationTestSetup(getDevice());
 
         getDevice().installPackage(findTestFile(APK_NAME), /* reinstall */ false);
 
@@ -102,7 +106,7 @@
 
     @After
     public void shutdown() throws Exception {
-        cleanUpVirtualizationTestSetup();
+        cleanUpVirtualizationTestSetup(getDevice());
 
         getDevice().uninstallPackage(PACKAGE_NAME);
     }