diff --git a/examples/protocols/esp_http_client/esp_http_client_test.py b/examples/protocols/esp_http_client/esp_http_client_test.py
index 49194dd8c..9ca1d6f09 100644
--- a/examples/protocols/esp_http_client/esp_http_client_test.py
+++ b/examples/protocols/esp_http_client/esp_http_client_test.py
@@ -14,7 +14,7 @@ import TinyFW
 import IDF
 
 
-@IDF.idf_example_test(env_tag="Example_WIFI")
+@IDF.idf_example_test(env_tag="Example_WIFI", ignore=True)
 def test_examples_protocol_esp_http_client(env, extra_data):
     """
     steps: |
diff --git a/examples/protocols/http_server/advanced_tests/http_server_advanced_test.py b/examples/protocols/http_server/advanced_tests/http_server_advanced_test.py
index 0333390da..204471b9c 100644
--- a/examples/protocols/http_server/advanced_tests/http_server_advanced_test.py
+++ b/examples/protocols/http_server/advanced_tests/http_server_advanced_test.py
@@ -39,7 +39,7 @@ import IDF
 expath = os.path.dirname(os.path.realpath(__file__))
 client = imp.load_source("client", expath + "/scripts/test.py")
 
-@IDF.idf_example_test(env_tag="Example_WIFI")
+@IDF.idf_example_test(env_tag="Example_WIFI", ignore=True)
 def test_examples_protocol_http_server_advanced(env, extra_data):
     # Acquire DUT
     dut1 = env.get_dut("http_server", "examples/protocols/http_server/advanced_tests")
diff --git a/examples/protocols/http_server/advanced_tests/main/Kconfig.projbuild b/examples/protocols/http_server/advanced_tests/main/Kconfig.projbuild
index 1a39b7890..9e2813c69 100644
--- a/examples/protocols/http_server/advanced_tests/main/Kconfig.projbuild
+++ b/examples/protocols/http_server/advanced_tests/main/Kconfig.projbuild
@@ -8,7 +8,7 @@ config WIFI_SSID
 
 config WIFI_PASSWORD
     string "WiFi Password"
-    default "mypasswd"
+    default "mypassword"
     help
         WiFi password (WPA or WPA2) for the example to use.
         Can be left blank if the network has no security set.
diff --git a/examples/protocols/http_server/persistent_sockets/main/Kconfig.projbuild b/examples/protocols/http_server/persistent_sockets/main/Kconfig.projbuild
index 3174cbd70..9e2813c69 100644
--- a/examples/protocols/http_server/persistent_sockets/main/Kconfig.projbuild
+++ b/examples/protocols/http_server/persistent_sockets/main/Kconfig.projbuild
@@ -8,7 +8,7 @@ config WIFI_SSID
 
 config WIFI_PASSWORD
     string "WiFi Password"
-    default "myssid"
+    default "mypassword"
     help
         WiFi password (WPA or WPA2) for the example to use.
         Can be left blank if the network has no security set.
diff --git a/examples/protocols/http_server/simple/http_server_simple_test.py b/examples/protocols/http_server/simple/http_server_simple_test.py
index 35bbed0c4..e8ae1dee5 100644
--- a/examples/protocols/http_server/simple/http_server_simple_test.py
+++ b/examples/protocols/http_server/simple/http_server_simple_test.py
@@ -39,7 +39,7 @@ import IDF
 expath = os.path.dirname(os.path.realpath(__file__))
 client = imp.load_source("client", expath + "/scripts/client.py")
 
-@IDF.idf_example_test(env_tag="Example_WIFI")
+@IDF.idf_example_test(env_tag="Example_WIFI", ignore=True)
 def test_examples_protocol_http_server_simple(env, extra_data):
     # Acquire DUT
     dut1 = env.get_dut("http_server", "examples/protocols/http_server/simple")
diff --git a/examples/protocols/http_server/simple/main/Kconfig.projbuild b/examples/protocols/http_server/simple/main/Kconfig.projbuild
index 3174cbd70..9e2813c69 100644
--- a/examples/protocols/http_server/simple/main/Kconfig.projbuild
+++ b/examples/protocols/http_server/simple/main/Kconfig.projbuild
@@ -8,7 +8,7 @@ config WIFI_SSID
 
 config WIFI_PASSWORD
     string "WiFi Password"
-    default "myssid"
+    default "mypassword"
     help
         WiFi password (WPA or WPA2) for the example to use.
         Can be left blank if the network has no security set.
diff --git a/examples/protocols/https_request/example_test.py b/examples/protocols/https_request/example_test.py
index 169ae6330..e362a2512 100644
--- a/examples/protocols/https_request/example_test.py
+++ b/examples/protocols/https_request/example_test.py
@@ -14,7 +14,7 @@ import TinyFW
 import IDF
 
 
-@IDF.idf_example_test(env_tag="Example_WIFI")
+@IDF.idf_example_test(env_tag="Example_WIFI", ignore=True)
 def test_examples_protocol_https_request(env, extra_data):
     """
     steps: |
diff --git a/tools/tiny-test-fw/DUT.py b/tools/tiny-test-fw/DUT.py
index 6380c43d6..0193cb6c7 100644
--- a/tools/tiny-test-fw/DUT.py
+++ b/tools/tiny-test-fw/DUT.py
@@ -645,7 +645,7 @@ class BaseDUT(object):
         Utility.console_log("DUT debug info for DUT: {}:".format(self.name), color="orange")
 
         for failure in self.expect_failures:
-            Utility.console_log("\t[pattern]: {}\r\n\t[data]: {}\r\n\t[time]: {} - {}\r\n"
+            Utility.console_log(u"\t[pattern]: {}\r\n\t[data]: {}\r\n\t[time]: {} - {}\r\n"
                                 .format(failure["pattern"], failure["data"],
                                         self._format_ts(failure["start"]), self._format_ts(failure["end"])),
                                 color="orange")
diff --git a/tools/tiny-test-fw/IDF/IDFDUT.py b/tools/tiny-test-fw/IDF/IDFDUT.py
index 8f870fec8..28ea4867c 100644
--- a/tools/tiny-test-fw/IDF/IDFDUT.py
+++ b/tools/tiny-test-fw/IDF/IDFDUT.py
@@ -18,7 +18,9 @@ import sys
 import re
 import subprocess
 import functools
-import serial
+import random
+import tempfile
+
 from serial.tools import list_ports
 
 import DUT
@@ -46,6 +48,8 @@ class IDFDUT(DUT.SerialDUT):
     # /dev/ttyAMA0 port is listed in Raspberry Pi
     # /dev/tty.Bluetooth-Incoming-Port port is listed in Mac
     INVALID_PORT_PATTERN = re.compile(r"AMA|Bluetooth")
+    # if need to erase NVS partition in start app
+    ERASE_NVS = True
 
     def __init__(self, name, port, log_file, app, **kwargs):
         self.download_config, self.partition_table = app.process_app_info()
@@ -74,24 +78,39 @@ class IDFDUT(DUT.SerialDUT):
         return cls.get_chip(app, port) is not None
 
     @_tool_method
-    def start_app(self):
+    def start_app(self, erase_nvs=ERASE_NVS):
         """
         download and start app.
 
+        :param: erase_nvs: whether erase NVS partition during flash
         :return: None
         """
+        if erase_nvs:
+            address = self.partition_table["nvs"]["offset"]
+            size = self.partition_table["nvs"]["size"]
+            nvs_file = tempfile.NamedTemporaryFile()
+            nvs_file.write(chr(0xFF) * size)
+            nvs_file.flush()
+            download_config = self.download_config + [address, nvs_file.name]
+        else:
+            download_config = self.download_config
+
         retry_baud_rates = ["921600", "115200"]
         error = IDFToolError()
-        for baud_rate in retry_baud_rates:
-            try:
-                subprocess.check_output(["python", self.app.esptool,
-                                         "--port", self.port, "--baud", baud_rate]
-                                        + self.download_config)
-                break
-            except subprocess.CalledProcessError as error:
-                continue
-        else:
-            raise error
+        try:
+            for baud_rate in retry_baud_rates:
+                try:
+                    subprocess.check_output(["python", self.app.esptool,
+                                             "--port", self.port, "--baud", baud_rate]
+                                            + download_config)
+                    break
+                except subprocess.CalledProcessError as error:
+                    continue
+            else:
+                raise error
+        finally:
+            if erase_nvs:
+                nvs_file.close()
 
     @_tool_method
     def reset(self):
@@ -102,6 +121,17 @@ class IDFDUT(DUT.SerialDUT):
         """
         subprocess.check_output(["python", self.app.esptool, "--port", self.port, "run"])
 
+    @_tool_method
+    def erase_partition(self, partition):
+        """
+        :param partition: partition name to erase
+        :return: None
+        """
+        address = self.partition_table[partition]["offset"]
+        size = self.partition_table[partition]["size"]
+        with open(".erase_partition.tmp", "wb") as f:
+            f.write(chr(0xFF) * size)
+
     @_tool_method
     def dump_flush(self, output_file, **kwargs):
         """
diff --git a/tools/tiny-test-fw/IDF/__init__.py b/tools/tiny-test-fw/IDF/__init__.py
index fad52f41b..c7480c43f 100644
--- a/tools/tiny-test-fw/IDF/__init__.py
+++ b/tools/tiny-test-fw/IDF/__init__.py
@@ -20,9 +20,8 @@ from IDF.IDFApp import IDFApp, Example, UT
 from IDF.IDFDUT import IDFDUT
 
 
-def idf_example_test(app=Example, dut=IDFDUT, chip="ESP32",
-                     module="examples", execution_time=1, level="example",
-                     **kwargs):
+def idf_example_test(app=Example, dut=IDFDUT, chip="ESP32", module="examples", execution_time=1,
+                     level="example", erase_nvs=True, **kwargs):
     """
     decorator for testing idf examples (with default values for some keyword args).
 
@@ -32,10 +31,41 @@ def idf_example_test(app=Example, dut=IDFDUT, chip="ESP32",
     :param module: module, string
     :param execution_time: execution time in minutes, int
     :param level: test level, could be used to filter test cases, string
+    :param erase_nvs: if need to erase_nvs in DUT.start_app()
     :param kwargs: other keyword args
     :return: test method
     """
-    # not use partial function as define as function support auto generating document
+    try:
+        # try to config the default behavior of erase nvs
+        dut.ERASE_NVS = erase_nvs
+    except AttributeError:
+        pass
+
+    return TinyFW.test_method(app=app, dut=dut, chip=chip, module=module,
+                              execution_time=execution_time, level=level, **kwargs)
+
+
+def idf_unit_test(app=UT, dut=IDFDUT, chip="ESP32", module="unit-test", execution_time=1,
+                  level="unit", erase_nvs=True, **kwargs):
+    """
+    decorator for testing idf unit tests (with default values for some keyword args).
+
+    :param app: test application class
+    :param dut: dut class
+    :param chip: chip supported, string or tuple
+    :param module: module, string
+    :param execution_time: execution time in minutes, int
+    :param level: test level, could be used to filter test cases, string
+    :param erase_nvs: if need to erase_nvs in DUT.start_app()
+    :param kwargs: other keyword args
+    :return: test method
+    """
+    try:
+        # try to config the default behavior of erase nvs
+        dut.ERASE_NVS = erase_nvs
+    except AttributeError:
+        pass
+
     return TinyFW.test_method(app=app, dut=dut, chip=chip, module=module,
                               execution_time=execution_time, level=level, **kwargs)
 
diff --git a/tools/tiny-test-fw/TinyFW.py b/tools/tiny-test-fw/TinyFW.py
index a0314e37b..c475f3824 100644
--- a/tools/tiny-test-fw/TinyFW.py
+++ b/tools/tiny-test-fw/TinyFW.py
@@ -107,6 +107,7 @@ MANDATORY_INFO = {
     "execution_time": 1,
     "env_tag": "default",
     "category": "function",
+    "ignore": False,
 }
 
 
diff --git a/tools/tiny-test-fw/Utility/CIAssignTest.py b/tools/tiny-test-fw/Utility/CIAssignTest.py
index 58c43580b..2df66fe81 100644
--- a/tools/tiny-test-fw/Utility/CIAssignTest.py
+++ b/tools/tiny-test-fw/Utility/CIAssignTest.py
@@ -125,6 +125,7 @@ class AssignTest(object):
     # by default we only run function in CI, as other tests could take long time
     DEFAULT_FILTER = {
         "category": "function",
+        "ignore": False,
     }
 
     def __init__(self, test_case_path, ci_config_file, case_group=Group):
diff --git a/tools/unit-test-app/unit_test.py b/tools/unit-test-app/unit_test.py
index e0e265709..4ce625af3 100644
--- a/tools/unit-test-app/unit_test.py
+++ b/tools/unit-test-app/unit_test.py
@@ -105,8 +105,7 @@ def format_test_case_config(test_case_data):
     return case_config
 
 
-@TinyFW.test_method(app=UT, dut=IDF.IDFDUT, chip="ESP32", module="unit_test",
-                    execution_time=1, env_tag="UT_T1_1")
+@IDF.idf_unit_test(env_tag="UT_T1_1")
 def run_unit_test_cases(env, extra_data):
     """
     extra_data can be three types of value
@@ -347,8 +346,7 @@ def case_run(duts, ut_config, env, one_case, failed_cases):
         Utility.console_log("Failed: " + one_case["name"], color="red")
 
 
-@TinyFW.test_method(app=UT, dut=IDF.IDFDUT, chip="ESP32", module="master_slave_test_case", execution_time=1,
-                    env_tag="UT_T2_1")
+@IDF.idf_unit_test(env_tag="UT_T2_1")
 def run_multiple_devices_cases(env, extra_data):
     """
      extra_data can be two types of value
@@ -385,8 +383,7 @@ def run_multiple_devices_cases(env, extra_data):
         raise AssertionError("Unit Test Failed")
 
 
-@TinyFW.test_method(app=UT, dut=IDF.IDFDUT, chip="ESP32", module="unit_test",
-                    execution_time=1, env_tag="UT_T1_1")
+@IDF.idf_unit_test(env_tag="UT_T1_1")
 def run_multiple_stage_cases(env, extra_data):
     """
     extra_data can be 2 types of value