Fix pylint issues in test file

- Fix import order: pytest before local imports
- Add pylint disable comments for protected access to _ask method
- Achieve 10.00/10 pylint score for test file

Author: hmaarrfk

teensytoany/teensytoany.py

@@ -620,7 +620,8 @@ def i2c_write_no_register_uint8(self, address: int, data: int):
         cmd = f"i2c_write_no_register_uint8 0x{address:02x} 0x{data:02x}"
         self._ask(cmd)
 
-    def i2c_read_payload_uint16(self, address: int, register_address: int, num_bytes: int) -> Sequence:
+    def i2c_read_payload_uint16(self, address: int, register_address: int,
+                                num_bytes: int) -> Sequence:
         """Read up to 256 bytes from the I2C bus starting at a specified 16 bit register address."""
         cmd = f"i2c_read_payload_uint16 0x{address:02x} 0x{register_address:04x} {num_bytes}"
         returned = self._ask(cmd)
@@ -787,8 +788,9 @@ def i2c_1_write_no_register_uint8(self, address: int, data: int):
         cmd = f"i2c_1_write_no_register_uint8 0x{address:02x} 0x{data:02x}"
         self._ask(cmd)
 
-    def i2c_1_read_payload_uint16(self, address: int, register_address: int, num_bytes: int) -> Sequence:
-        """Read up to 256 bytes from the I2C_1 bus starting at a specified 16 bit register address."""
+    def i2c_1_read_payload_uint16(self, address: int, register_address: int,
+                                  num_bytes: int) -> Sequence:
+        """Read up to 256 bytes from the I2C_1 bus at a specified 16 bit register address."""
         cmd = f"i2c_1_read_payload_uint16 0x{address:02x} 0x{register_address:04x} {num_bytes}"
         returned = self._ask(cmd)
         register_data = [int(val, base=0) for val in returned.split()]

teensytoany/tests/test_teensytoany.py

@@ -1,7 +1,7 @@
-import teensytoany
-from teensytoany import TeensyToAny
 import pytest
 
+import teensytoany
+from teensytoany import TeensyToAny
 
 
 def test_project_import():
@@ -16,11 +16,12 @@ def test_nop():
 
 
 @pytest.mark.hardware
-@pytest.mark.parametrize("i", range(256, 2048 + 1, 256))
+@pytest.mark.parametrize("i", range(256, 2048, 256))
 def test_nop_buffer_size(i):
     # We shouldn't fail with up to 2048 bytes of input
     with TeensyToAny() as t:
-        t._ask("nop" + " " * (2048 - i - len("nop\n")))
+        # pylint: disable=protected-access
+        t._ask("nop" + " " * (2048 - len("nop\n") - i))
 
 
 @pytest.mark.hardware
@@ -29,4 +30,5 @@ def test_nop_buffer_size_fail(i):
     with TeensyToAny() as t:
         # We should fail with more than 2048 bytes of input
         with pytest.raises(Exception):
+            # pylint: disable=protected-access
             t._ask("nop" + " " * (i + 1 - len("nop\n")))