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This commit is contained in:
J. Nick Koston
2025-09-21 10:12:48 -06:00
parent eee8b11119
commit 0cae1f28b0
1 changed files with 49 additions and 16 deletions
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65
tests/unit_tests/test_espota2.py
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@@ -17,6 +17,12 @@ from pytest import CaptureFixture
from esphome import espota2
from esphome.core import EsphomeError
# Test constants
MOCK_RANDOM_VALUE = 0.123456
MOCK_RANDOM_BYTES = b"0.123456"
MOCK_MD5_NONCE = b"12345678901234567890123456789012" # 32 char nonce for MD5
MOCK_SHA256_NONCE = b"1234567890123456789012345678901234567890123456789012345678901234" # 64 char nonce for SHA256
@pytest.fixture
def mock_socket() -> Mock:
@@ -40,14 +46,18 @@ def mock_file() -> io.BytesIO:
@pytest.fixture
def mock_time() -> Generator[None]:
"""Mock time-related functions for consistent testing."""
with patch("time.sleep"), patch("time.perf_counter", side_effect=[0, 1]):
# Provide enough values for multiple calls (tests may call perform_ota multiple times)
with (
patch("time.sleep"),
patch("time.perf_counter", side_effect=[0, 1, 0, 1, 0, 1]),
):
yield
@pytest.fixture
def mock_random() -> Generator[Mock]:
"""Mock random for predictable test values."""
with patch("random.random", return_value=0.123456) as mock_rand:
with patch("random.random", return_value=MOCK_RANDOM_VALUE) as mock_rand:
yield mock_rand
@@ -223,7 +233,7 @@ def test_perform_ota_successful_md5_auth(
bytes([espota2.OTA_VERSION_2_0]), # Version number
bytes([espota2.RESPONSE_HEADER_OK]), # Features response
bytes([espota2.RESPONSE_REQUEST_AUTH]), # Auth request
b"12345678901234567890123456789012", # 32 char hex nonce
MOCK_MD5_NONCE, # 32 char hex nonce
bytes([espota2.RESPONSE_AUTH_OK]), # Auth result
bytes([espota2.RESPONSE_UPDATE_PREPARE_OK]), # Binary size OK
bytes([espota2.RESPONSE_BIN_MD5_OK]), # MD5 checksum OK
@@ -251,13 +261,13 @@ def test_perform_ota_successful_md5_auth(
)
# Verify cnonce was sent (MD5 of random.random())
cnonce = hashlib.md5(b"0.123456").hexdigest()
cnonce = hashlib.md5(MOCK_RANDOM_BYTES).hexdigest()
assert mock_socket.sendall.call_args_list[2] == call(cnonce.encode())
# Verify auth result was computed correctly
expected_hash = hashlib.md5()
expected_hash.update(b"testpass")
expected_hash.update(b"12345678901234567890123456789012")
expected_hash.update(MOCK_MD5_NONCE)
expected_hash.update(cnonce.encode())
expected_result = expected_hash.hexdigest()
assert mock_socket.sendall.call_args_list[3] == call(expected_result.encode())
@@ -503,7 +513,7 @@ def test_perform_ota_successful_sha256_auth(
bytes([espota2.OTA_VERSION_2_0]), # Version number
bytes([espota2.RESPONSE_HEADER_OK]), # Features response
bytes([espota2.RESPONSE_REQUEST_SHA256_AUTH]), # SHA256 Auth request
b"1234567890123456789012345678901234567890123456789012345678901234", # 64 char hex nonce
MOCK_SHA256_NONCE, # 64 char hex nonce
bytes([espota2.RESPONSE_AUTH_OK]), # Auth result
bytes([espota2.RESPONSE_UPDATE_PREPARE_OK]), # Binary size OK
bytes([espota2.RESPONSE_BIN_MD5_OK]), # MD5 checksum OK
@@ -531,15 +541,13 @@ def test_perform_ota_successful_sha256_auth(
)
# Verify cnonce was sent (SHA256 of random.random())
cnonce = hashlib.sha256(b"0.123456").hexdigest()
cnonce = hashlib.sha256(MOCK_RANDOM_BYTES).hexdigest()
assert mock_socket.sendall.call_args_list[2] == call(cnonce.encode())
# Verify auth result was computed correctly with SHA256
expected_hash = hashlib.sha256()
expected_hash.update(b"testpass")
expected_hash.update(
b"1234567890123456789012345678901234567890123456789012345678901234"
)
expected_hash.update(MOCK_SHA256_NONCE)
expected_hash.update(cnonce.encode())
expected_result = expected_hash.hexdigest()
assert mock_socket.sendall.call_args_list[3] == call(expected_result.encode())
@@ -560,7 +568,7 @@ def test_perform_ota_sha256_fallback_to_md5(
bytes(
[espota2.RESPONSE_REQUEST_AUTH]
), # MD5 Auth request (device doesn't support SHA256)
b"12345678901234567890123456789012", # 32 char hex nonce for MD5
MOCK_MD5_NONCE, # 32 char hex nonce for MD5
bytes([espota2.RESPONSE_AUTH_OK]), # Auth result
bytes([espota2.RESPONSE_UPDATE_PREPARE_OK]), # Binary size OK
bytes([espota2.RESPONSE_BIN_MD5_OK]), # MD5 checksum OK
@@ -585,10 +593,10 @@ def test_perform_ota_sha256_fallback_to_md5(
)
# But authentication was done with MD5
cnonce = hashlib.md5(b"0.123456").hexdigest()
cnonce = hashlib.md5(MOCK_RANDOM_BYTES).hexdigest()
expected_hash = hashlib.md5()
expected_hash.update(b"testpass")
expected_hash.update(b"12345678901234567890123456789012")
expected_hash.update(MOCK_MD5_NONCE)
expected_hash.update(cnonce.encode())
expected_result = expected_hash.hexdigest()
assert mock_socket.sendall.call_args_list[3] == call(expected_result.encode())
@@ -615,6 +623,31 @@ def test_perform_ota_version_differences(
mock_socket.recv.side_effect = recv_responses
espota2.perform_ota(mock_socket, "", mock_file, "test.bin")
# Verify no chunk acknowledgments were expected
# (implementation detail - v1 doesn't wait for chunk OK)
assert True # Placeholder assertion
# For v1.0, verify that we only get the expected number of recv calls
# v1.0 doesn't have chunk acknowledgments, so fewer recv calls
assert mock_socket.recv.call_count == 8 # v1.0 has 8 recv calls
# Reset mock for v2.0 test
mock_socket.reset_mock()
# Reset file position for second test
mock_file.seek(0)
# Test version 2.0 - with chunk acknowledgments
recv_responses_v2 = [
bytes([espota2.RESPONSE_OK]), # First byte of version response
bytes([espota2.OTA_VERSION_2_0]), # Version number
bytes([espota2.RESPONSE_HEADER_OK]), # Features response
bytes([espota2.RESPONSE_AUTH_OK]), # No auth required
bytes([espota2.RESPONSE_UPDATE_PREPARE_OK]), # Binary size OK
bytes([espota2.RESPONSE_BIN_MD5_OK]), # MD5 checksum OK
bytes([espota2.RESPONSE_CHUNK_OK]), # v2.0 has chunk acknowledgment
bytes([espota2.RESPONSE_RECEIVE_OK]), # Receive OK
bytes([espota2.RESPONSE_UPDATE_END_OK]), # Update end OK
]
mock_socket.recv.side_effect = recv_responses_v2
espota2.perform_ota(mock_socket, "", mock_file, "test.bin")
# For v2.0, verify more recv calls due to chunk acknowledgments
assert mock_socket.recv.call_count == 9 # v2.0 has 9 recv calls (includes chunk OK)