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|
import os
import shutil
from textwrap import dedent
import pytest
from fontTools.ttLib import TTFont
from vttLib import (
make_ft_program,
pformat_tti,
transform_assembly,
vtt_compile,
vtt_merge_file,
)
DATA_DIR = os.path.join(os.path.dirname(os.path.realpath(__file__)), "data")
TEST_NAMES = ["fdef83", "fdef133", "fdef152", "fdef153", "idef145", "pushoff_pushes"]
@pytest.fixture(params=TEST_NAMES)
def test_name(request):
return request.param
@pytest.fixture()
def input_and_expected(request, test_name):
inpuf_filename = test_name + ".txt"
with open(os.path.join(DATA_DIR, inpuf_filename)) as fp:
input_vtt_assembly = fp.read()
expected_filename = test_name + "_transformed.txt"
with open(os.path.join(DATA_DIR, expected_filename)) as fp:
expected_ft_assembly = fp.read()
ft_program = make_ft_program(expected_ft_assembly)
expected_ft_assembly = pformat_tti(ft_program)
return input_vtt_assembly, expected_ft_assembly
class TestTransformAssembly(object):
def test_empty(self):
assert not transform_assembly("")
def test_ignore_overlap(self):
ft_assembly = transform_assembly("OVERLAP[]")
assert not ft_assembly
def test_jump_back(self):
vtt_assembly = dedent(
"""
#PUSH, 1
DUP[]
#Label1:
DUP[]
DUP[]
DUP[]
#PUSH, Var1
JMPR[], (Var1=#Label1)
"""
)
ft_assembly = transform_assembly(vtt_assembly)
assert (
ft_assembly
== dedent(
"""
PUSH[] 1
DUP[]
DUP[]
DUP[]
DUP[]
PUSHW[] -6
JMPR[]
"""
).strip()
)
def test_jump_forward(self):
vtt_assembly = dedent(
"""
#PUSH, Var1
JMPR[], (Var1=#Label1)
DUP[]
DUP[]
#PUSH, 1, 2
DUP[]
#Label1:
DUP[]
DUP[]
"""
)
ft_assembly = transform_assembly(vtt_assembly)
assert (
ft_assembly
== dedent(
"""
PUSHW[] 7
JMPR[]
DUP[]
DUP[]
PUSH[] 1 2
DUP[]
DUP[]
DUP[]
"""
).strip()
)
def test_jump_mixed_args(self):
vtt_assembly = dedent(
"""
#PUSH, Var1, 1
JROT[], (Var1=#Label1)
DUP[]
DUP[]
DUP[]
#Label1:
DUP[]
"""
)
ft_assembly = transform_assembly(vtt_assembly)
assert (
ft_assembly
== dedent(
"""
PUSHW[] 4
PUSH[] 1
JROT[]
DUP[]
DUP[]
DUP[]
DUP[]
"""
).strip()
)
def test_jump_repeated_args(self):
vtt_assembly = dedent(
"""
#PUSH, 0, Var1, Var1, -1
POP[]
SWAP[]
JROF[], (Var1=#Label1)
DUP[]
DUP[]
#Label1:
DUP[]
"""
)
ft_assembly = transform_assembly(vtt_assembly)
assert (
ft_assembly
== dedent(
"""
PUSH[] 0
PUSHW[] 3 3
PUSH[] -1
POP[]
SWAP[]
JROF[]
DUP[]
DUP[]
DUP[]
"""
).strip()
)
def test_end_to_end(self, input_and_expected):
vtt_assembly, expected = input_and_expected
ft_assembly = transform_assembly(vtt_assembly)
ft_program = make_ft_program(ft_assembly)
generated = pformat_tti(ft_program)
assert expected == generated
|
