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"""Tests for our testing utilities."""
from memray import AllocationRecord
from memray import AllocatorType
from tests.utils import MockAllocationRecord
from tests.utils import filter_relevant_allocations
class TestFilterRelevantAllocations:
def test_filters_for_valloc_and_free(self):
records = [
MockAllocationRecord(1, 0x1000000, 1024, AllocatorType.MALLOC, 0, 0, []),
MockAllocationRecord(1, 0x1000000, 1024, AllocatorType.VALLOC, 0, 0, []),
MockAllocationRecord(1, 0x1000000, 0, AllocatorType.FREE, 0, 0, []),
]
assert list(filter_relevant_allocations(records)) == [
MockAllocationRecord(1, 0x1000000, 1024, AllocatorType.VALLOC, 0, 0, []),
MockAllocationRecord(1, 0x1000000, 0, AllocatorType.FREE, 0, 0, []),
]
def test_filters_based_on_addresses(self):
records = [
MockAllocationRecord(1, 0x2000000, 1024, AllocatorType.MALLOC, 0, 0, []),
MockAllocationRecord(1, 0x1000000, 1024, AllocatorType.VALLOC, 0, 0, []),
MockAllocationRecord(1, 0x2000000, 0, AllocatorType.FREE, 0, 0, []),
MockAllocationRecord(1, 0x1000000, 0, AllocatorType.FREE, 0, 0, []),
]
assert list(filter_relevant_allocations(records)) == [
MockAllocationRecord(1, 0x1000000, 1024, AllocatorType.VALLOC, 0, 0, []),
MockAllocationRecord(1, 0x1000000, 0, AllocatorType.FREE, 0, 0, []),
]
def test_free_records_with_valid_addresses_that_dont_match_do_not_appear(self):
records = [
MockAllocationRecord(1, 0x2000000, 0, AllocatorType.FREE, 0, 0, []),
MockAllocationRecord(1, 0x1000000, 0, AllocatorType.FREE, 0, 0, []),
MockAllocationRecord(1, 0x2000000, 1024, AllocatorType.MALLOC, 0, 0, []),
MockAllocationRecord(1, 0x1000000, 1024, AllocatorType.VALLOC, 0, 0, []),
MockAllocationRecord(1, 0x2000000, 0, AllocatorType.FREE, 0, 0, []),
MockAllocationRecord(1, 0x1000000, 0, AllocatorType.FREE, 0, 0, []),
]
assert list(filter_relevant_allocations(records)) == [
MockAllocationRecord(1, 0x1000000, 1024, AllocatorType.VALLOC, 0, 0, []),
MockAllocationRecord(1, 0x1000000, 0, AllocatorType.FREE, 0, 0, []),
]
def test_free_records_with_unmatched_addresses_do_not_appear(self):
records = [
MockAllocationRecord(1, 0x6000000, 0, AllocatorType.FREE, 0, 0, []),
MockAllocationRecord(1, 0x7000000, 0, AllocatorType.FREE, 0, 0, []),
MockAllocationRecord(1, 0x2000000, 1024, AllocatorType.MALLOC, 0, 0, []),
MockAllocationRecord(1, 0x1000000, 1024, AllocatorType.VALLOC, 0, 0, []),
MockAllocationRecord(1, 0x2000000, 0, AllocatorType.FREE, 0, 0, []),
MockAllocationRecord(1, 0x1000000, 0, AllocatorType.FREE, 0, 0, []),
]
assert list(filter_relevant_allocations(records)) == [
MockAllocationRecord(1, 0x1000000, 1024, AllocatorType.VALLOC, 0, 0, []),
MockAllocationRecord(1, 0x1000000, 0, AllocatorType.FREE, 0, 0, []),
]
class TestMockAllocationRecord:
def test_holds_values_at_correct_names(self):
tid = 0
address = 0x1140000
size = 1024
allocator = AllocatorType.MALLOC
stack_id = 1
n_allocations = 1
stack = ["stack 0", "stack 1"]
mock_record = MockAllocationRecord(
tid, address, size, allocator, stack_id, n_allocations, stack
)
assert mock_record.tid == tid
assert mock_record.address == address
assert mock_record.size == size
assert mock_record.allocator == allocator
assert mock_record.stack_id == stack_id
assert mock_record.n_allocations == n_allocations
assert mock_record.stack_trace() == stack
assert mock_record.stack_trace(max_stacks=1) == ["stack 0"]
def test_looks_like_AllocationRecord(self):
tid = 0
address = 0x1140000
size = 1024
allocator = AllocatorType.MALLOC
stack_id = 1
n_allocations = 1
stack = ["i'm stack"]
record = AllocationRecord(
(tid, address, size, allocator, stack_id, n_allocations)
)
mock_record = MockAllocationRecord(
tid, address, size, allocator, stack_id, n_allocations, stack
)
assert mock_record.tid == record.tid == tid
assert mock_record.address == record.address == address
assert mock_record.size == record.size == size
assert mock_record.allocator == record.allocator == allocator
assert mock_record.stack_id == record.stack_id == stack_id
assert mock_record.n_allocations == record.n_allocations == n_allocations
def test_equality(self):
one = MockAllocationRecord(1, 0x1000000, 0, AllocatorType.FREE, 0, 0, [])
two = MockAllocationRecord(1, 0x1000000, 0, AllocatorType.FREE, 0, 0, [])
three = MockAllocationRecord(2, 0x1000000, 0, AllocatorType.FREE, 0, 0, [])
assert one == one
assert one == two
assert one != three
assert two == one
assert two == two
assert two != three
assert three != one
assert three != two
assert three == three
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