diff --git a/CleanSpec.mk b/CleanSpec.mk
index 21034ad..51139ed 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -603,6 +603,13 @@
 
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib*)
 
+# Clean up old testcase files
+$(call add-clean-step, rm -rf $(TARGET_OUT_TESTCASES)/*)
+$(call add-clean-step, rm -rf $(HOST_OUT_TESTCASES)/*)
+$(call add-clean-step, rm -rf $(HOST_CROSS_OUT_TESTCASES)/*)
+$(call add-clean-step, rm -rf $(TARGET_OUT_DATA)/*)
+$(call add-clean-step, rm -rf $(HOST_OUT)/vts/*)
+$(call add-clean-step, rm -rf $(HOST_OUT)/framework/vts-tradefed.jar)
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************
diff --git a/core/base_rules.mk b/core/base_rules.mk
index 2fbf524..b2bbe46 100644
--- a/core/base_rules.mk
+++ b/core/base_rules.mk
@@ -242,6 +242,33 @@
   partition_tag := $(if $(call should-install-to-system,$(my_module_tags)),,_DATA)
 endif
 endif
+# For test modules that lack a suite tag, set null-suite as the default.
+# We only support adding a default suite to native tests, native benchmarks, and instrumentation tests.
+# This is because they are the only tests we currently auto-generate test configs for.
+ifndef LOCAL_COMPATIBILITY_SUITE
+  ifneq ($(filter NATIVE_TESTS NATIVE_BENCHMARK, $(LOCAL_MODULE_CLASS)),)
+    LOCAL_COMPATIBILITY_SUITE := null-suite
+  endif
+  ifneq ($(filter APPS, $(LOCAL_MODULE_CLASS)),)
+    ifneq ($(filter $(my_module_tags),tests),)
+      LOCAL_COMPATIBILITY_SUITE := null-suite
+    endif
+  endif
+endif
+
+use_testcase_folder :=
+ifdef ENABLE_DEFAULT_TEST_LOCATION
+  ifeq ($(my_module_path),)
+    ifneq ($(LOCAL_MODULE),$(filter $(LOCAL_MODULE),$(DEFAULT_DATA_OUT_MODULES)))
+      ifdef LOCAL_COMPATIBILITY_SUITE
+        ifneq (true, $(LOCAL_IS_HOST_MODULE))
+          use_testcase_folder := true
+        endif
+      endif
+    endif
+  endif
+endif
+
 ifeq ($(my_module_path),)
   install_path_var := $(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)OUT$(partition_tag)_$(LOCAL_MODULE_CLASS)
   ifeq (true,$(LOCAL_PRIVILEGED_MODULE))
@@ -249,6 +276,16 @@
   endif
 
   my_module_path := $($(install_path_var))
+
+  # If use_testcase_folder be set, and LOCAL_MODULE_PATH not set,
+  # overwrite the default path under testcase.
+  ifeq ($(use_testcase_folder),true)
+    arch_dir := $($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)
+    testcase_folder := $($(my_prefix)OUT_TESTCASES)/$(LOCAL_MODULE)/$(arch_dir)
+    my_module_path := $(testcase_folder)
+    arch_dir :=
+  endif
+
   ifeq ($(strip $(my_module_path)),)
     $(error $(LOCAL_PATH): unhandled install path "$(install_path_var) for $(LOCAL_MODULE)")
   endif
@@ -324,7 +361,9 @@
   # Neither do Runtime Resource Overlay apks, which contain just the overlaid resources.
   else ifeq ($(LOCAL_IS_RUNTIME_RESOURCE_OVERLAY),true)
   else
-    my_module_path := $(my_module_path)/$(LOCAL_MODULE)
+    ifneq ($(use_testcase_folder),true)
+      my_module_path := $(my_module_path)/$(LOCAL_MODULE)
+    endif
   endif
   endif
   LOCAL_INSTALLED_MODULE := $(my_module_path)/$(my_installed_module_stem)
@@ -429,12 +468,23 @@
 my_init_rc_installed :=
 my_init_rc_pairs :=
 my_installed_symlinks :=
+my_default_test_module :=
+ifeq ($(use_testcase_folder),true)
+arch_dir := $($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)
+my_default_test_module := $($(my_prefix)OUT_TESTCASES)/$(LOCAL_MODULE)/$(arch_dir)/$(my_installed_module_stem)
+arch_dir :=
+endif
+
 ifneq (true,$(LOCAL_UNINSTALLABLE_MODULE))
+ifneq ($(LOCAL_INSTALLED_MODULE),$(my_default_test_module))
+# Install into the testcase folder
+$(LOCAL_INSTALLED_MODULE) : $(my_default_test_module)
 $(LOCAL_INSTALLED_MODULE): PRIVATE_POST_INSTALL_CMD := $(LOCAL_POST_INSTALL_CMD)
 $(LOCAL_INSTALLED_MODULE): $(LOCAL_BUILT_MODULE)
 	@echo "Install: $@"
 	$(copy-file-to-new-target)
 	$(PRIVATE_POST_INSTALL_CMD)
+endif
 
 ifndef LOCAL_IS_HOST_MODULE
 # Rule to install the module's companion init.rc.
@@ -544,20 +594,6 @@
 endif
 endif
 
-# For test modules that lack a suite tag, set null-suite as the default.
-# We only support adding a default suite to native tests, native benchmarks, and instrumentation tests.
-# This is because they are the only tests we currently auto-generate test configs for.
-ifndef LOCAL_COMPATIBILITY_SUITE
-ifneq ($(filter NATIVE_TESTS NATIVE_BENCHMARK, $(LOCAL_MODULE_CLASS)),)
-LOCAL_COMPATIBILITY_SUITE := null-suite
-endif
-ifneq ($(filter APPS, $(LOCAL_MODULE_CLASS)),)
-ifneq ($(filter $(my_module_tags),tests),)
-LOCAL_COMPATIBILITY_SUITE := null-suite
-endif
-endif
-endif
-
 ###########################################################
 ## Compatibility suite files.
 ###########################################################
@@ -575,9 +611,15 @@
 ifdef LOCAL_MULTILIB
   multi_arch := true
 endif
+
 ifdef multi_arch
+arch_dir := /$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)
+else
+ifeq ($(use_testcase_folder),true)
   arch_dir := /$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)
 endif
+endif
+
 multi_arch :=
 
 # The module itself.
@@ -671,6 +713,17 @@
 endif
 
 
+ifeq ($(use_testcase_folder),true)
+ifneq ($(my_test_data_file_pairs),)
+$(foreach pair, $(my_test_data_file_pairs), \
+  $(eval parts := $(subst :,$(space),$(pair))) \
+  $(eval src_path := $(word 1,$(parts))) \
+  $(eval file := $(word 2,$(parts))) \
+  $(foreach suite, $(LOCAL_COMPATIBILITY_SUITE), \
+    $(eval my_compat_dist_$(suite) += $(foreach dir, $(call compatibility_suite_dirs,$(suite),$(arch_dir)), \
+      $(call filter-copy-pair,$(src_path),$(call append-path,$(dir),$(file)),$(my_installed_test_data))))))
+endif
+else
 ifneq ($(my_test_data_file_pairs),)
 $(foreach pair, $(my_test_data_file_pairs), \
   $(eval parts := $(subst :,$(space),$(pair))) \
@@ -680,6 +733,9 @@
     $(eval my_compat_dist_$(suite) += $(foreach dir, $(call compatibility_suite_dirs,$(suite),$(arch_dir)), \
       $(src_path):$(call append-path,$(dir),$(file))))))
 endif
+endif
+
+
 
 arch_dir :=
 is_native :=
diff --git a/core/config.mk b/core/config.mk
index 242558e..0bc460e 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -1174,4 +1174,12 @@
 include $(BUILD_SYSTEM)/soong_config.mk
 endif
 
+# If ENABLE_DEFAULT_TEST_LOCATION is true, move default install path from
+# $(my_prefix)OUT_DATA to $(my_prefix)OUT_TESTCASES
+ENABLE_DEFAULT_TEST_LOCATION := true
+-include external/linux-kselftest/android/kselftest_test_list.mk
+-include external/ltp/android/ltp_package_list.mk
+DEFAULT_DATA_OUT_MODULES := ltp $(ltp_packages) $(kselftest_modules)
+.KATI_READONLY := ENABLE_DEFAULT_TEST_LOCATION DEFAULT_DATA_OUT_MODULES
+
 include $(BUILD_SYSTEM)/dumpvar.mk
diff --git a/core/definitions.mk b/core/definitions.mk
index c46a873..e880fa5 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -2478,6 +2478,25 @@
 	$$(align-package)
 endef
 
+# Create copy pair for compatibility suite
+# Filter out $(LOCAL_INSTALLED_MODULE) to prevent overriding target
+# $(1): source path
+# $(2): destination path
+# The format of copy pair is src:dst
+define compat-copy-pair
+$(if $(filter-out $(2), $(LOCAL_INSTALLED_MODULE)), $(1):$(2))
+endef
+
+# Create copy pair for $(1) $(2)
+# If $(2) is substring of $(3) do nothing.
+# $(1): source path
+# $(2): destination path
+# $(3): filter-out target
+# The format of copy pair is src:dst
+define filter-copy-pair
+$(if $(findstring $(2), $(3)),,$(1):$(2))
+endef
+
 # Copies many files.
 # $(1): The files to copy.  Each entry is a ':' separated src:dst pair
 # $(2): An optional directory to prepend to the destination
diff --git a/core/envsetup.mk b/core/envsetup.mk
index 506ec4d..1704daf 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -523,6 +523,11 @@
   $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_APPS_PRIVILEGED \
   $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_TESTCASES
 
+MODULE_CLASS_APPS := app
+MODULE_CLASS_EXECUTABLES := bin
+MODULE_CLASS_JAVA_LIBRARIES := framework
+MODULE_CLASS_NATIVE_TESTS := nativetest
+MODULE_CLASS_METRIC_TESTS := benchmarktest
 TARGET_OUT_DATA := $(PRODUCT_OUT)/$(TARGET_COPY_OUT_DATA)
 TARGET_OUT_DATA_EXECUTABLES := $(TARGET_OUT_EXECUTABLES)
 TARGET_OUT_DATA_SHARED_LIBRARIES := $(TARGET_OUT_SHARED_LIBRARIES)
@@ -542,6 +547,7 @@
 TARGET_OUT_VENDOR_NATIVE_TESTS := $(TARGET_OUT_DATA)/nativetest$(TARGET_VENDOR_TEST_SUFFIX)
 TARGET_OUT_VENDOR_METRIC_TESTS := $(TARGET_OUT_DATA)/benchmarktest$(TARGET_VENDOR_TEST_SUFFIX)
 endif
+MODULE_CLASS_FAKE := fake_packages
 TARGET_OUT_DATA_FAKE := $(TARGET_OUT_DATA)/fake_packages
 .KATI_READONLY := \
   TARGET_OUT_DATA \
@@ -556,7 +562,13 @@
   TARGET_OUT_DATA_METRIC_TESTS \
   TARGET_OUT_VENDOR_NATIVE_TESTS \
   TARGET_OUT_VENDOR_METRIC_TESTS \
-  TARGET_OUT_DATA_FAKE
+  TARGET_OUT_DATA_FAKE \
+  MODULE_CLASS_APPS \
+  MODULE_CLASS_EXECUTABLES \
+  MODULE_CLASS_JAVA_LIBRARIES \
+  MODULE_CLASS_NATIVE_TESTS \
+  MODULE_CLASS_METRIC_TESTS \
+  MODULE_CLASS_FAKE
 
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_DATA_EXECUTABLES := $(TARGET_OUT_DATA_EXECUTABLES)
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_DATA_SHARED_LIBRARIES := $($(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_SHARED_LIBRARIES)
diff --git a/core/native_benchmark.mk b/core/native_benchmark.mk
index e73bcad..4750649 100644
--- a/core/native_benchmark.mk
+++ b/core/native_benchmark.mk
@@ -6,8 +6,10 @@
 
 LOCAL_STATIC_LIBRARIES += libgoogle-benchmark
 
+ifndef ENABLE_DEFAULT_TEST_LOCATION
 LOCAL_MODULE_PATH_64 := $(TARGET_OUT_DATA_METRIC_TESTS)/$(LOCAL_MODULE)
 LOCAL_MODULE_PATH_32 := $($(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_DATA_METRIC_TESTS)/$(LOCAL_MODULE)
+endif
 
 ifndef LOCAL_MULTILIB
 ifndef LOCAL_32_BIT_ONLY
diff --git a/core/package_internal.mk b/core/package_internal.mk
index 9043710..3be4635 100644
--- a/core/package_internal.mk
+++ b/core/package_internal.mk
@@ -768,10 +768,17 @@
 
 ifdef LOCAL_COMPATIBILITY_SUITE
 
+ifndef ENABLE_DEFAULT_TEST_LOCATION
 $(foreach suite, $(LOCAL_COMPATIBILITY_SUITE), \
   $(eval my_compat_dist_$(suite) := $(foreach dir, $(call compatibility_suite_dirs,$(suite)), \
     $(foreach s,$(my_split_suffixes),\
       $(intermediates)/package_$(s).apk:$(dir)/$(LOCAL_MODULE)_$(s).apk))))
+else
+$(foreach suite, $(LOCAL_COMPATIBILITY_SUITE), \
+  $(eval my_compat_dist_$(suite) := $(foreach dir, $(call compatibility_suite_dirs,$(suite)), \
+    $(foreach s,$(my_split_suffixes),\
+      $(call compat-copy-pair,$(intermediates)/package_$(s).apk,$(dir)/$(LOCAL_MODULE)_$(s).apk)))))
+endif
 
 $(call create-suite-dependencies)
 
diff --git a/core/target_test_internal.mk b/core/target_test_internal.mk
index b5c3a7c..1ed1195 100644
--- a/core/target_test_internal.mk
+++ b/core/target_test_internal.mk
@@ -29,6 +29,15 @@
 $(error $(LOCAL_PATH): Do not set LOCAL_MODULE_PATH_64 when building test $(LOCAL_MODULE))
 endif
 
+use_testcase_folder := false
+ifdef ENABLE_DEFAULT_TEST_LOCATION
+  ifneq ($(LOCAL_MODULE),$(filter $(LOCAL_MODULE),$(DEFAULT_DATA_OUT_MODULES)))
+    use_testcase_folder := true
+  endif
+endif
+
+ifneq ($(use_testcase_folder),true)
 ifndef LOCAL_MODULE_RELATIVE_PATH
 LOCAL_MODULE_RELATIVE_PATH := $(LOCAL_MODULE)
 endif
+endif
diff --git a/core/tasks/tools/package-modules.mk b/core/tasks/tools/package-modules.mk
index 629a9b2..82b4c6a 100644
--- a/core/tasks/tools/package-modules.mk
+++ b/core/tasks/tools/package-modules.mk
@@ -40,6 +40,8 @@
     $(ALL_MODULES.$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX).PICKUP_FILES)))\
   $(eval _built_files := $(strip $(ALL_MODULES.$(m).BUILT_INSTALLED)\
     $(ALL_MODULES.$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX).BUILT_INSTALLED)))\
+  $(eval _module_class_folder := $($(strip MODULE_CLASS_$(word 1, $(strip $(ALL_MODULES.$(m).CLASS)\
+    $(ALL_MODULES.$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX).CLASS))))))\
   $(if $(_pickup_files)$(_built_files),,\
     $(call my_missing_files,$(m)))\
   $(eval my_pickup_files += $(_pickup_files))\
@@ -49,9 +51,15 @@
     $(if $(filter $(TARGET_OUT_ROOT)/%,$(ins)),\
       $(eval bui := $(word 1,$(bui_ins)))\
       $(eval my_built_modules += $(bui))\
+      $(if $(filter $(_module_class_folder), nativetest benchmarktest),\
+        $(eval module_class_folder_stem := $(_module_class_folder)$(findstring 64, $(patsubst $(PRODUCT_OUT)/%,%,$(ins)))),\
+        $(eval module_class_folder_stem := $(_module_class_folder)))\
       $(eval my_copy_dest := $(patsubst data/%,DATA/%,\
-                               $(patsubst system/%,DATA/%,\
-                                 $(patsubst $(PRODUCT_OUT)/%,%,$(ins)))))\
+                               $(patsubst testcases/%,DATA/$(module_class_folder_stem)/%,\
+                                 $(patsubst testcases/$(m)/$(TARGET_ARCH)/%,DATA/$(module_class_folder_stem)/$(m)/%,\
+                                   $(patsubst testcases/$(m)/$(TARGET_2ND_ARCH)/%,DATA/$(module_class_folder_stem)/$(m)/%,\
+                                     $(patsubst system/%,DATA/%,\
+                                       $(patsubst $(PRODUCT_OUT)/%,%,$(ins))))))))\
       $(eval my_copy_pairs += $(bui):$(my_staging_dir)/$(my_copy_dest)))\
   ))