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# BSD 3-Clause License; see https://github.com/scikit-hep/awkward/blob/main/LICENSE
from __future__ import annotations
import numpy as np
import pytest
numba = pytest.importorskip("numba")
from awkward._connect.numba.growablebuffer import ( # noqa: E402
GrowableBuffer,
_from_data,
)
def test_python_append():
# small 'initial' and 'resize' for testing
growablebuffer = GrowableBuffer(np.int32, initial=10, resize=2.0)
assert growablebuffer.snapshot().tolist() == []
assert len(growablebuffer._panels) == 1
# within the first panel
for x in range(5):
growablebuffer.append(x)
assert growablebuffer.snapshot().tolist() == list(range(5))
assert len(growablebuffer._panels) == 1
# reaching the end of the first panel (10)
for x in range(5, 9):
growablebuffer.append(x)
assert growablebuffer.snapshot().tolist() == list(range(9))
assert len(growablebuffer._panels) == 1
# at the end
growablebuffer.append(9)
assert growablebuffer.snapshot().tolist() == list(range(10))
assert len(growablebuffer._panels) == 1
# beyond the end; onto the second panel
growablebuffer.append(10)
assert growablebuffer.snapshot().tolist() == list(range(11))
assert len(growablebuffer._panels) == 2
# continuing into the second panel
growablebuffer.append(11)
assert growablebuffer.snapshot().tolist() == list(range(12))
assert len(growablebuffer._panels) == 2
# to the end of the second panel (30)
for x in range(12, 30):
growablebuffer.append(x)
assert growablebuffer.snapshot().tolist() == list(range(30))
assert len(growablebuffer._panels) == 2
# continuing into the third panel
growablebuffer.append(30)
assert growablebuffer.snapshot().tolist() == list(range(31))
assert len(growablebuffer._panels) == 3
def test_python_extend():
# small 'initial' and 'resize' for testing
growablebuffer = GrowableBuffer(np.int32, initial=10, resize=2.0)
assert growablebuffer.snapshot().tolist() == []
assert len(growablebuffer._panels) == 1
# within the first panel
growablebuffer.extend(np.array(range(5)))
assert growablebuffer.snapshot().tolist() == list(range(5))
assert len(growablebuffer._panels) == 1
# up to (and touching) the end of the first panel (10)
growablebuffer.extend(np.array(range(5, 10)))
assert growablebuffer.snapshot().tolist() == list(range(10))
assert len(growablebuffer._panels) == 1
# within the second panel (which ends at 30)
growablebuffer.extend(np.array(range(10, 20)))
assert growablebuffer.snapshot().tolist() == list(range(20))
assert len(growablebuffer._panels) == 2
# touching the end of the second panel
growablebuffer.extend(np.array(range(20, 30)))
assert growablebuffer.snapshot().tolist() == list(range(30))
assert len(growablebuffer._panels) == 2
# fill one whole panel exactly (start to end)
growablebuffer.extend(np.array(range(30, 50)))
assert growablebuffer.snapshot().tolist() == list(range(50))
assert len(growablebuffer._panels) == 3
# fill more than one panel, starting at a threshold
growablebuffer.extend(np.array(range(50, 80)))
assert growablebuffer.snapshot().tolist() == list(range(80))
assert len(growablebuffer._panels) == 4
# fill more than one panel, not starting at a threshold, but ending on one
growablebuffer.extend(np.array(range(80, 110)))
assert growablebuffer.snapshot().tolist() == list(range(110))
assert len(growablebuffer._panels) == 5
# fill lots of panels, starting at a threshold
growablebuffer.extend(np.array(range(110, 160)))
assert growablebuffer.snapshot().tolist() == list(range(160))
assert len(growablebuffer._panels) == 6
# fill lots of panels, not starting at a threshold or ending on one
growablebuffer.extend(np.array(range(160, 200)))
assert growablebuffer.snapshot().tolist() == list(range(200))
assert len(growablebuffer._panels) == 7
# fill lots of panels, not starting at a threshold, but ending on one
growablebuffer.extend(np.array(range(200, 250)))
assert growablebuffer.snapshot().tolist() == list(range(250))
assert len(growablebuffer._panels) == 8
# fill a whole lot of panels, just for fun
growablebuffer.extend(np.array(range(250, 1000)))
assert growablebuffer.snapshot().tolist() == list(range(1000))
assert len(growablebuffer._panels) == 9
def test_unbox():
@numba.njit
def f1(x):
x # noqa: B018 (we want to test the unboxing)
return 3.14
growablebuffer = GrowableBuffer(np.int32)
f1(growablebuffer)
def test_box():
@numba.njit
def f2(x):
return x
growablebuffer = GrowableBuffer(np.int32, initial=10)
out1 = f2(growablebuffer)
assert len(out1._panels) == len(growablebuffer._panels)
assert out1._panels[0] is growablebuffer._panels[0]
assert out1._length == growablebuffer._length
assert out1._pos == growablebuffer._pos
assert out1._resize == growablebuffer._resize
for x in range(15):
growablebuffer.append(x)
out2 = f2(growablebuffer)
assert len(out2._panels) == len(growablebuffer._panels)
assert out2._panels[0] is growablebuffer._panels[0]
assert out2._panels[1] is growablebuffer._panels[1]
assert out2._length == growablebuffer._length
assert out2._pos == growablebuffer._pos
assert out2._resize == growablebuffer._resize
assert len(out1._panels) == len(growablebuffer._panels)
assert out1._panels[0] is growablebuffer._panels[0]
assert out1._panels[1] is growablebuffer._panels[1]
assert out1._length == growablebuffer._length
assert out1._pos == growablebuffer._pos
assert out1._resize == growablebuffer._resize
def test_len():
@numba.njit
def f3(x):
return len(x)
growablebuffer = GrowableBuffer(np.int32)
assert f3(growablebuffer) == 0
growablebuffer.append(123)
assert f3(growablebuffer) == 1
def test_from_data():
@numba.njit
def f4():
return _from_data(
numba.typed.List([np.array([3.12], np.float32)]),
np.array([1, 0], np.int64),
1.23,
)
out = f4()
assert isinstance(out, GrowableBuffer)
assert out.dtype == np.dtype(np.float32)
assert len(out) == 1
assert out._pos == 0
assert out._resize == 1.23
def test_ctor():
@numba.njit
def f5():
return GrowableBuffer("f4")
out = f5()
assert isinstance(out, GrowableBuffer)
assert out.dtype == np.dtype("f4")
assert len(out) == 0
assert len(out._panels) == 1
assert len(out._panels[0]) == 1024
assert out._pos == 0
assert out._resize == 8.0
@numba.njit
def f6():
return GrowableBuffer("f4", initial=10)
out = f6()
assert isinstance(out, GrowableBuffer)
assert out.dtype == np.dtype("f4")
assert len(out) == 0
assert len(out._panels) == 1
assert len(out._panels[0]) == 10
assert out._pos == 0
assert out._resize == 8.0
@numba.njit
def f7():
return GrowableBuffer("f4", resize=2.0)
out = f7()
assert isinstance(out, GrowableBuffer)
assert out.dtype == np.dtype("f4")
assert len(out) == 0
assert len(out._panels) == 1
assert len(out._panels[0]) == 1024
assert out._pos == 0
assert out._resize == 2.0
@numba.njit
def f8():
return GrowableBuffer("f4", resize=2.0, initial=10)
out = f8()
assert isinstance(out, GrowableBuffer)
assert out.dtype == np.dtype("f4")
assert len(out) == 0
assert len(out._panels) == 1
assert len(out._panels[0]) == 10
assert out._pos == 0
assert out._resize == 2.0
@numba.njit
def f9():
return GrowableBuffer(np.float32)
out = f9()
assert isinstance(out, GrowableBuffer)
assert out.dtype == np.dtype(np.float32)
assert len(out) == 0
assert len(out._panels) == 1
assert len(out._panels[0]) == 1024
assert out._pos == 0
assert out._resize == 8.0
@numba.njit
def f10():
return GrowableBuffer(np.dtype(np.float32))
out = f10()
assert isinstance(out, GrowableBuffer)
assert out.dtype == np.dtype(np.float32)
assert len(out) == 0
assert len(out._panels) == 1
assert len(out._panels[0]) == 1024
assert out._pos == 0
assert out._resize == 8.0
def test_length_and_pos():
@numba.njit
def f11(growablebuffer):
return growablebuffer._length_get(), growablebuffer._pos_get()
@numba.njit
def f12(growablebuffer):
growablebuffer._length_set(1)
growablebuffer._pos_set(2)
@numba.njit
def f13(growablebuffer):
growablebuffer._length_inc(10)
growablebuffer._pos_inc(10)
growablebuffer = GrowableBuffer(np.float32)
growablebuffer._length = 123
growablebuffer._pos = 99
assert f11(growablebuffer) == (123, 99)
f12(growablebuffer)
assert growablebuffer._length == 1
assert growablebuffer._pos == 2
f13(growablebuffer)
assert growablebuffer._length == 11
assert growablebuffer._pos == 12
def test_add_panel():
@numba.njit
def f14(growablebuffer):
growablebuffer._add_panel()
growablebuffer = GrowableBuffer(np.float32, initial=10, resize=2.0)
growablebuffer._pos = 5
assert len(growablebuffer._panels) == 1
assert len(growablebuffer._panels[0]) == 10
assert growablebuffer._pos == 5
f14(growablebuffer)
assert len(growablebuffer._panels) == 2
assert len(growablebuffer._panels[0]) == 10
assert len(growablebuffer._panels[1]) == 20
assert growablebuffer._pos == 0
def test_append():
@numba.njit
def f15(growablebuffer):
for i in range(8):
growablebuffer.append(i)
growablebuffer = GrowableBuffer(np.float32, initial=10, resize=2.0)
f15(growablebuffer)
assert growablebuffer.snapshot().tolist() == list(range(8))
f15(growablebuffer)
assert growablebuffer.snapshot().tolist() == list(range(8)) + list(range(8))
def test_extend():
@numba.njit
def f16(growablebuffer):
growablebuffer.extend(np.arange(8))
growablebuffer = GrowableBuffer(np.float32, initial=10, resize=2.0)
f16(growablebuffer)
assert growablebuffer.snapshot().tolist() == list(range(8))
f16(growablebuffer)
assert growablebuffer.snapshot().tolist() == list(range(8)) + list(range(8))
def test_snapshot():
@numba.njit
def f17(growablebuffer):
return growablebuffer.snapshot()
growablebuffer = GrowableBuffer(np.float32, initial=10, resize=2.0)
assert f17(growablebuffer).tolist() == []
growablebuffer.extend(range(8))
assert f17(growablebuffer).tolist() == list(range(8))
growablebuffer.extend(range(8))
assert f17(growablebuffer).tolist() == list(range(8)) + list(range(8))
def test_numba_append():
@numba.njit
def create():
# small 'initial' and 'resize' for testing
return GrowableBuffer(np.int32, initial=10, resize=2.0)
@numba.njit
def append_range(growablebuffer, start, stop):
for x in range(start, stop):
growablebuffer.append(x)
@numba.njit
def append_single(growablebuffer, x):
growablebuffer.append(x)
@numba.njit
def snapshot(growablebuffer):
return growablebuffer.snapshot()
growablebuffer = create()
assert snapshot(growablebuffer).tolist() == []
assert len(growablebuffer._panels) == 1
# within the first panel
append_range(growablebuffer, 0, 5)
assert snapshot(growablebuffer).tolist() == list(range(5))
assert len(growablebuffer._panels) == 1
# reaching the end of the first panel (10)
append_range(growablebuffer, 5, 9)
assert snapshot(growablebuffer).tolist() == list(range(9))
assert len(growablebuffer._panels) == 1
# at the end
append_single(growablebuffer, 9)
assert snapshot(growablebuffer).tolist() == list(range(10))
assert len(growablebuffer._panels) == 1
# beyond the end; onto the second panel
append_single(growablebuffer, 10)
assert snapshot(growablebuffer).tolist() == list(range(11))
assert len(growablebuffer._panels) == 2
# continuing into the second panel
append_single(growablebuffer, 11)
assert snapshot(growablebuffer).tolist() == list(range(12))
assert len(growablebuffer._panels) == 2
# to the end of the second panel (30)
append_range(growablebuffer, 12, 30)
assert snapshot(growablebuffer).tolist() == list(range(30))
assert len(growablebuffer._panels) == 2
# continuing into the third panel
append_single(growablebuffer, 30)
assert snapshot(growablebuffer).tolist() == list(range(31))
assert len(growablebuffer._panels) == 3
def test_numba_extend():
@numba.njit
def create():
# small 'initial' and 'resize' for testing
return GrowableBuffer(np.int32, initial=10, resize=2.0)
@numba.njit
def extend_range(growablebuffer, start, stop):
growablebuffer.extend(np.arange(start, stop))
@numba.njit
def snapshot(growablebuffer):
return growablebuffer.snapshot()
growablebuffer = create()
assert snapshot(growablebuffer).tolist() == []
assert len(growablebuffer._panels) == 1
# within the first panel
extend_range(growablebuffer, 0, 5)
assert snapshot(growablebuffer).tolist() == list(range(5))
assert len(growablebuffer._panels) == 1
# up to (and touching) the end of the first panel (10)
extend_range(growablebuffer, 5, 10)
assert snapshot(growablebuffer).tolist() == list(range(10))
assert len(growablebuffer._panels) == 1
# within the second panel (which ends at 30)
extend_range(growablebuffer, 10, 20)
assert snapshot(growablebuffer).tolist() == list(range(20))
assert len(growablebuffer._panels) == 2
# touching the end of the second panel
extend_range(growablebuffer, 20, 30)
assert snapshot(growablebuffer).tolist() == list(range(30))
assert len(growablebuffer._panels) == 2
# fill one whole panel exactly (start to end)
extend_range(growablebuffer, 30, 50)
assert snapshot(growablebuffer).tolist() == list(range(50))
assert len(growablebuffer._panels) == 3
# fill more than one panel, starting at a threshold
extend_range(growablebuffer, 50, 80)
assert snapshot(growablebuffer).tolist() == list(range(80))
assert len(growablebuffer._panels) == 4
# fill more than one panel, not starting at a threshold, but ending on one
extend_range(growablebuffer, 80, 110)
assert snapshot(growablebuffer).tolist() == list(range(110))
assert len(growablebuffer._panels) == 5
# fill lots of panels, starting at a threshold
extend_range(growablebuffer, 110, 160)
assert snapshot(growablebuffer).tolist() == list(range(160))
assert len(growablebuffer._panels) == 6
# fill lots of panels, not starting at a threshold or ending on one
extend_range(growablebuffer, 160, 200)
assert snapshot(growablebuffer).tolist() == list(range(200))
assert len(growablebuffer._panels) == 7
# fill lots of panels, not starting at a threshold, but ending on one
extend_range(growablebuffer, 200, 250)
assert snapshot(growablebuffer).tolist() == list(range(250))
assert len(growablebuffer._panels) == 8
# fill a whole lot of panels, just for fun
extend_range(growablebuffer, 250, 1000)
assert snapshot(growablebuffer).tolist() == list(range(1000))
assert len(growablebuffer._panels) == 9
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