diff --git a/tools/idf_size.py b/tools/idf_size.py
index 55630dc49ea..77b26ceba2c 100755
--- a/tools/idf_size.py
+++ b/tools/idf_size.py
@@ -6,19 +6,8 @@
 # Includes information which is not shown in "xtensa-esp32-elf-size",
 # or easy to parse from "xtensa-esp32-elf-objdump" or raw map files.
 #
-# Copyright 2017-2021 Espressif Systems (Shanghai) CO LTD
-#
-# 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.
+# SPDX-FileCopyrightText: 2017-2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
 #
 from __future__ import division, print_function, unicode_literals
 
diff --git a/tools/test_idf_size/expected_output b/tools/test_idf_size/expected_output
index 7c7cc1f4ece..00db2c1c437 100644
--- a/tools/test_idf_size/expected_output
+++ b/tools/test_idf_size/expected_output
@@ -1,4 +1,25 @@
 
+***
+Building project for esp32...
+
+***
+Running mem_test.py for esp32...
+Test complete without errors
+
+***
+Building project for esp32s2...
+
+***
+Running mem_test.py for esp32s2...
+Test complete without errors
+
+***
+Building project for esp32c3...
+
+***
+Running mem_test.py for esp32c3...
+Test complete without errors
+
 ***
 Running idf_size.py...
 Total sizes:
diff --git a/tools/test_idf_size/mem_test.py b/tools/test_idf_size/mem_test.py
new file mode 100644
index 00000000000..4bfaf0d5cd7
--- /dev/null
+++ b/tools/test_idf_size/mem_test.py
@@ -0,0 +1,52 @@
+#!/usr/bin/env python
+#
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
+#
+import argparse
+import json
+import os
+import re
+from typing import Dict
+
+IDF_PATH = os.environ['IDF_PATH']
+MAX_SIZE_DIFF = 50
+
+
+def mem_test(size_json, esptool_output):  # type: (dict, list) -> None
+    seg_len = {}  # type: Dict[str, int]
+    for i in esptool_output:
+        tmp = i.split(' ')
+        if tmp[0] == 'Segment':
+            # tmp look like ['Segment', '2:', 'len', '0x02780', 'load', '0x3fc90610', 'file_offs', '0x00007ab0', '[BYTE_ACCESSIBLE,MEM_INTERNAL,DRAM]']
+            # tmp[3] contains the size of the segment and tmp[8] contains the name of the memory segment
+            esptool_mem = {'mem_type':tmp[8], 'size':tmp[3]}
+            seg = re.sub(r'MEM_INTERNAL|,|BYTE_ACCESSIBLE|\n|\[|\]', '', esptool_mem['mem_type'])
+            # If there are two IRAMs in esptool output it will compute these two IRAM lengths in a seg_len['IRAM']
+            seg_len[seg] = int(esptool_mem['size'], 16) if seg not in seg_len else seg_len[seg] + int(esptool_mem['size'], 16)
+    # including flash_other to DROM because flash_other contain .flash.appdesc that includes in DROM that produced by esptool
+    size_from_map = [('IROM', size_json['flash_code']), ('IRAM', size_json['iram_text'] + size_json['iram_vectors'] + size_json['diram_text']
+                     + size_json['diram_vectors']), ('DROM', size_json['flash_rodata'] + size_json['flash_other']), ('DRAM', size_json
+                     ['dram_data'] + size_json['diram_data'])]
+    for mem_type, size in size_from_map:
+        if abs(size - seg_len[mem_type]) > MAX_SIZE_DIFF:
+            raise RuntimeError(mem_type + " segment in idf_size isn't correct regarding esptool")
+    print('Test complete without errors')
+
+
+def main():  # type: () -> None
+    parser = argparse.ArgumentParser(description='mem_test.py - a tool to test accuracy of the sizes of the memory segments regarding idf.py size by esptool')
+
+    parser.add_argument(
+        'size_json', help='JSON file with the output of the idf.py size',
+        type=argparse.FileType('r'))
+    parser.add_argument(
+        'esptool_output', help='File with the output of the esptool',
+        type=argparse.FileType('r'))
+
+    args = parser.parse_args()
+    mem_test(json.loads(args.size_json.read()), args.esptool_output.read().split('\n'))
+
+
+if __name__ == '__main__':
+    main()
diff --git a/tools/test_idf_size/test.sh b/tools/test_idf_size/test.sh
index 12f07f044c9..9ad84455a54 100755
--- a/tools/test_idf_size/test.sh
+++ b/tools/test_idf_size/test.sh
@@ -1,7 +1,31 @@
 #!/usr/bin/env bash
 
-{ coverage debug sys \
-    && coverage erase &> output \
+
+memory_test () {
+    pushd $IDF_PATH/examples/get-started/hello_world \
+    && echo -e "\n***\nBuilding project for $1..." &>> $IDF_PATH/tools/test_idf_size/output \
+    && idf.py set-target $1 \
+    && idf.py build \
+    && echo -e "\n***\nRunning mem_test.py for $1..." &>> $IDF_PATH/tools/test_idf_size/output \
+    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json build/hello-world.map > size_output.json \
+    && python $IDF_PATH/components/esptool_py/esptool/esptool.py --chip $1 image_info build/hello-world.bin > esptool_output \
+    && python -m coverage run -a $IDF_PATH/tools/test_idf_size/mem_test.py size_output.json esptool_output &>> $IDF_PATH/tools/test_idf_size/output \
+    && popd
+}
+
+json_test() {
+    echo -e "\n***\nProducing JSON output for $1..." &>> output \
+    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json app_$1.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
+    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json --archives app_$1.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
+    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json --files app_$1.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
+    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json --archive_details libdriver.a app_$1.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output
+}
+
+{ python -m coverage debug sys \
+    && python -m coverage erase &> output \
+    && memory_test esp32 \
+    && memory_test esp32s2 \
+    && memory_test esp32c3 \
     && echo -e "\n***\nRunning idf_size.py..." &>> output \
     && coverage run -a $IDF_PATH/tools/idf_size.py app.map &>> output \
     && echo -e "\n***\nRunning idf_size.py on bootloader..." &>> output \
@@ -101,21 +125,9 @@
     && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json --archives app.map --diff app2.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
     && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json --files app.map --diff app2.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
     && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json --archive_details libdriver.a app.map --diff app2.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
-    && echo -e "\n***\nProducing JSON output for esp32s2..." &>> output \
-    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json app_esp32s2.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
-    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json --archives app_esp32s2.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
-    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json --files app_esp32s2.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
-    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json --archive_details libdriver.a app_esp32s2.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
-    && echo -e "\n***\nProducing JSON output for esp32c3..." &>> output \
-    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json app_esp32c3.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
-    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json --archives app_esp32c3.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
-    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json --files app_esp32c3.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
-    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json --archive_details libdriver.a app_esp32c3.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
-    && echo -e "\n***\nProducing JSON output for esp32s3..." &>> output \
-    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json app_esp32s3.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
-    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json --archives app_esp32s3.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
-    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json --files app_esp32s3.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
-    && python -m coverage run -a $IDF_PATH/tools/idf_size.py --json --archive_details libdriver.a app_esp32s3.map | python $IDF_PATH/tools/test_idf_size/json_validate_test.py &>> output \
+    && json_test esp32s2 \
+    && json_test esp32c3 \
+    && json_test esp32s3 \
     && echo -e "\n***\nProducing JSON file output..." &>> output \
     && coverage run -a $IDF_PATH/tools/idf_size.py --json --output-file output.json app.map &>> output \
     && echo -e "\n***\nProducing text file output..." &>> output \