diff --git a/adb/apex/Android.bp b/adb/apex/Android.bp
index 75c4ed9..a6b1e78 100644
--- a/adb/apex/Android.bp
+++ b/adb/apex/Android.bp
@@ -21,7 +21,7 @@
 }
 
 // adbd apex with INT_MAX version code, to allow for upgrade/rollback testing.
-apex {
+apex_test {
     name: "test_com.android.adbd",
     defaults: ["com.android.adbd-defaults"],
     manifest: "test_apex_manifest.json",
diff --git a/fs_mgr/TEST_MAPPING b/fs_mgr/TEST_MAPPING
index de38ff6..60e3226 100644
--- a/fs_mgr/TEST_MAPPING
+++ b/fs_mgr/TEST_MAPPING
@@ -5,6 +5,12 @@
     },
     {
       "name": "liblp_test"
+    },
+    {
+      "name": "fiemap_image_test_presubmit"
+    },
+    {
+      "name": "fiemap_writer_test"
     }
   ]
 }
diff --git a/fs_mgr/libfiemap/Android.bp b/fs_mgr/libfiemap/Android.bp
index 1bf457f..2fd463c 100644
--- a/fs_mgr/libfiemap/Android.bp
+++ b/fs_mgr/libfiemap/Android.bp
@@ -104,4 +104,34 @@
     srcs: [
         "image_test.cpp",
     ],
+    test_suites: ["device-tests"],
+    auto_gen_config: true,
+    require_root: true,
+}
+
+/* BUG(148874852) temporary test */
+cc_test {
+    name: "fiemap_image_test_presubmit",
+    cppflags: [
+        "-DSKIP_TEST_IN_PRESUBMIT",
+    ],
+    static_libs: [
+        "libdm",
+        "libext4_utils",
+        "libfs_mgr",
+        "liblp",
+    ],
+    shared_libs: [
+        "libbase",
+        "libcrypto",
+        "libcrypto_utils",
+        "libcutils",
+        "liblog",
+    ],
+    srcs: [
+        "image_test.cpp",
+    ],
+    test_suites: ["device-tests"],
+    auto_gen_config: true,
+    require_root: true,
 }
diff --git a/fs_mgr/libfiemap/fiemap_writer.cpp b/fs_mgr/libfiemap/fiemap_writer.cpp
index b911234..4dd4bcc 100644
--- a/fs_mgr/libfiemap/fiemap_writer.cpp
+++ b/fs_mgr/libfiemap/fiemap_writer.cpp
@@ -526,11 +526,7 @@
 }
 
 static bool IsLastExtent(const fiemap_extent* extent) {
-    if (!(extent->fe_flags & FIEMAP_EXTENT_LAST)) {
-        LOG(ERROR) << "Extents are being received out-of-order";
-        return false;
-    }
-    return true;
+    return !!(extent->fe_flags & FIEMAP_EXTENT_LAST);
 }
 
 static bool FiemapToExtents(struct fiemap* fiemap, std::vector<struct fiemap_extent>* extents,
@@ -552,7 +548,10 @@
         fiemap_extent* next = &fiemap->fm_extents[i];
 
         // Make sure extents are returned in order
-        if (next != last_extent && IsLastExtent(next)) return false;
+        if (next != last_extent && IsLastExtent(next)) {
+            LOG(ERROR) << "Extents are being received out-of-order";
+            return false;
+        }
 
         // Check if extent's flags are valid
         if (!IsValidExtent(next, file_path)) return false;
@@ -592,8 +591,7 @@
         return false;
     }
 
-    uint64_t fiemap_size =
-            sizeof(struct fiemap_extent) + num_extents * sizeof(struct fiemap_extent);
+    uint64_t fiemap_size = sizeof(struct fiemap) + num_extents * sizeof(struct fiemap_extent);
     auto buffer = std::unique_ptr<void, decltype(&free)>(calloc(1, fiemap_size), free);
     if (buffer == nullptr) {
         LOG(ERROR) << "Failed to allocate memory for fiemap";
diff --git a/fs_mgr/libfiemap/image_test.cpp b/fs_mgr/libfiemap/image_test.cpp
index 80c340f..5388b44 100644
--- a/fs_mgr/libfiemap/image_test.cpp
+++ b/fs_mgr/libfiemap/image_test.cpp
@@ -212,6 +212,9 @@
 }
 
 TEST_F(ImageTest, IndirectMount) {
+#ifdef SKIP_TEST_IN_PRESUBMIT
+    GTEST_SKIP() << "WIP failure b/148874852";
+#endif
     // Create a simple wrapper around the base device that we'll mount from
     // instead. This will simulate the code paths for dm-crypt/default-key/bow
     // and force us to use device-mapper rather than loop devices.