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new(tests): EOF Validation embedded containers #1498

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150 changes: 150 additions & 0 deletions tests/osaka/eip7692_eof_v1/eip7620_eof_create/test_subcontainer_validation.py
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Original file line number Diff line number Diff line change
Expand Up @@ -585,6 +585,156 @@ def test_subcontainer_wrong_size(
)


empty_container = Container(
name="embedded_container_zero_container_size",
sections=[
Section.Code(
code=Op.PUSH1[0] + Op.RJUMPI[0] + Op.STOP,
max_stack_height=1,
),
Section.Container(
container=Container(
raw_bytes=([]), # Empty subcontainer
)
),
],
)


@pytest.mark.parametrize(
"truncate_at,exception",
[
pytest.param(-1, None),
pytest.param(12, EOFException.INCOMPLETE_SECTION_NUMBER),
pytest.param(13, EOFException.INCOMPLETE_SECTION_NUMBER),
pytest.param(14, EOFException.MISSING_HEADERS_TERMINATOR),
pytest.param(15, EOFException.INCOMPLETE_SECTION_SIZE),
pytest.param(16, EOFException.INCOMPLETE_SECTION_SIZE),
pytest.param(17, EOFException.INCOMPLETE_SECTION_SIZE),
pytest.param(18, EOFException.MISSING_HEADERS_TERMINATOR),
],
)
def test_truncated_subcontainer(eof_test, truncate_at, exception):
"""Test truncated container in subcontainer header description."""
container = Container(
sections=[
Section.Code(
code=Op.RETURNCODE[0](0, 0),
),
stop_sub_container,
],
kind=ContainerKind.INITCODE,
)
if truncate_at > 0:
container = Container(
raw_bytes=container.bytecode[0:truncate_at],
)
eof_test(container=container, expect_exception=exception)


@pytest.mark.parametrize(
"container,exception",
[
pytest.param(
empty_container,
EOFException.ZERO_SECTION_SIZE,
),
pytest.param(
Container(
name="embedded_container_non_zero_section_size_zero_container_size",
raw_bytes=(
[
0xEF,
0x00,
0x01, # Version: 1
0x01, # Types Length: 4
0x00,
0x04,
0x02, # Code Sections (Length: 1)
0x00,
0x01,
0x00, # Code Section 0 (Length: 6)
0x06,
0x03, # Container Sections (Length: 1)
0x00,
0x01,
0x00, # Container Section 0 (Length: 20)
0x00,
0x00,
0x14,
0xFF, # Data Length: 0
0x00,
0x00,
0x00, # Terminator
# Code Section 0 types
0x00, # Inputs: 0
0x80, # Outputs: 0 (Non-returning function)
0x00, # Max Stack Height: 1
0x01,
# Code Section 0
0x60, # [0] PUSH1(0)
0x00,
0xE1, # [2] RJUMPI(0)
0x00,
0x00,
0x00, # [5] STOP
# --- Error: Invalid Container Content ---#
]
),
),
EOFException.INVALID_SECTION_BODIES_SIZE,
),
pytest.param(
Container(
name="embedded_container_zero_section_size",
raw_bytes=(
[
0xEF,
0x00,
0x01, # Version: 1
0x01, # Types Length: 4
0x00,
0x04,
0x02, # Code Sections (Length: 1)
0x00,
0x01,
0x00, # Code Section 0 (Length: 6)
0x06,
# --- Error: Invalid Container Header (zero section size) ---#
0x03,
0x00,
0x00,
0xFF,
0x00,
0x00,
0x00,
0x00,
0x80,
0x00,
0x01,
0x60,
0x00,
0xE1,
0x00,
0x00,
0x00,
]
),
),
EOFException.ZERO_SECTION_SIZE,
),
],
)
def test_subcontainer_zero_section_size(
eof_test: EOFTestFiller, container: Container, exception: EOFException
):
"""Test subcontainers with declared or non-declared zero section sizes."""
eof_test(
container=container,
expect_exception=exception,
)


deep_container_parametrize = pytest.mark.parametrize(
["deepest_container", "exception"],
[
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