Add erase-flash option to erase the flash before programming.

Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>

Author: Ouss4

pytest-embedded-arduino/pytest_embedded_arduino/serial.py

@@ -25,10 +25,11 @@ def __init__(
         baud: int = EspSerial.DEFAULT_BAUDRATE,
         target: Optional[str] = None,
         skip_autoflash: bool = False,
+        erase_flash: bool = False,
         **kwargs,
     ) -> None:
         self.app = app
-        super().__init__(pexpect_proc, target or self.app.target, port, baud, skip_autoflash, **kwargs)
+        super().__init__(pexpect_proc, target or self.app.target, port, baud, skip_autoflash, erase_flash, **kwargs)
 
     def _start(self):
         if self.skip_autoflash:
@@ -68,6 +69,9 @@ def __init__(self, attributes):
             default_kwargs['force'] = False
             default_kwargs['chip'] = self.app.target
 
+        if self.erase_flash:
+            default_kwargs['erase_all'] = True
+
         default_kwargs.update(self.app.flash_settings)
         flash_args = FlashArgs(default_kwargs)
 

pytest-embedded-serial-esp/pytest_embedded_serial_esp/serial.py

@@ -42,6 +42,7 @@ def __init__(
         port: Optional[str] = None,
         baud: int = DEFAULT_BAUDRATE,
         skip_autoflash: bool = False,
+        erase_flash: bool = False,
         port_target_cache: Dict[str, str] = None,
         **kwargs,
     ) -> None:
@@ -87,6 +88,7 @@ def __init__(
         self.target = target
 
         self.skip_autoflash = skip_autoflash
+        self.erase_flash = erase_flash
         super().__init__(pexpect_proc, port=self.esp._port, **kwargs)
 
     def _post_init(self):

pytest-embedded/pytest_embedded/plugin.py

@@ -115,6 +115,10 @@ def pytest_addoption(parser):
         '--skip-autoflash',
         help='y/yes/true for True and n/no/false for False. Set to True to disable auto flash. (Default: False)',
     )
+    esp_group.addoption(
+        '--erase-flash',
+        help='y/yes/true for True and n/no/false for False. Set to True to erase flash before programming. (Default: False)',
+    )
 
     idf_group = parser.getgroup('embedded-idf')
     idf_group.addoption(
@@ -566,6 +570,13 @@ def skip_autoflash(request: FixtureRequest) -> Optional[bool]:
     return _request_param_or_config_option_or_default(request, 'skip_autoflash', None)
 
 
+@pytest.fixture
+@multi_dut_argument
+def erase_flash(request: FixtureRequest) -> Optional[bool]:
+    """Enable parametrization for the same cli option"""
+    return _request_param_or_config_option_or_default(request, 'erase_flash', None)
+
+
 #######
 # idf #
 #######
@@ -704,6 +715,7 @@ def _fixture_classes_and_options(
     target,
     baud,
     skip_autoflash,
+    erase_flash,
     part_tool,
     confirm_target_elf_sha256,
     erase_nvs,
@@ -792,6 +804,7 @@ def _fixture_classes_and_options(
                     'port': os.getenv('ESPPORT') or port,
                     'baud': int(os.getenv('ESPBAUD') or baud or EspSerial.DEFAULT_BAUDRATE),
                     'skip_autoflash': skip_autoflash,
+                    'erase_flash': erase_flash,
                 }
                 if 'idf' in _services:
                     from pytest_embedded_idf.serial import IdfSerial