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import contextlib
import os
import tempfile
import textwrap
import unittest
from typing import Iterator
from pyannotate_tools.annotations.infer import InferError
from pyannotate_tools.annotations.main import (generate_annotations_json,
generate_annotations_json_string)
class TestMain(unittest.TestCase):
def test_generation(self):
# type: () -> None
data = """
[
{
"path": "pkg/thing.py",
"line": 422,
"func_name": "my_function",
"type_comments": [
"(List[int], str) -> None"
],
"samples": 3
}
]
"""
with self.temporary_file() as target_path:
with self.temporary_json_file(data) as source_path:
generate_annotations_json(source_path, target_path)
with open(target_path) as target:
actual = target.read()
actual = actual.replace(' \n', '\n')
expected = textwrap.dedent("""\
[
{
"func_name": "my_function",
"line": 422,
"path": "pkg/thing.py",
"samples": 3,
"signature": {
"arg_types": [
"List[int]",
"str"
],
"return_type": "None"
}
}
]""")
assert actual == expected
def test_ambiguous_kind(self):
# type: () -> None
data = """
[
{
"path": "pkg/thing.py",
"line": 422,
"func_name": "my_function",
"type_comments": [
"(List[int], str) -> None",
"(List[int], *str) -> None"
],
"samples": 3
}
]
"""
with self.assertRaises(InferError) as e:
with self.temporary_json_file(data) as source_path:
generate_annotations_json(source_path, '/dummy')
assert str(e.exception) == textwrap.dedent("""\
Ambiguous argument kinds:
(List[int], str) -> None
(List[int], *str) -> None""")
def test_generate_to_memory(self):
# type: () -> None
data = """
[
{
"path": "pkg/thing.py",
"line": 422,
"func_name": "my_function",
"type_comments": [
"(List[int], str) -> None"
],
"samples": 3
}
]
"""
with self.temporary_json_file(data) as source_path:
output_data = generate_annotations_json_string(source_path)
assert output_data == [
{
"path": "pkg/thing.py",
"line": 422,
"func_name": "my_function",
"signature": {
"arg_types": [
"List[int]",
"str"
],
"return_type": "None"
},
"samples": 3
}
]
with self.temporary_json_file(data) as source_path:
output_data = generate_annotations_json_string(source_path, only_simple=True)
assert output_data == []
def test_generate_simple_signatures(self):
# type: () -> None
data = """
[
{
"path": "pkg/thing.py",
"line": 422,
"func_name": "complex_function",
"type_comments": [
"(List[int], str) -> None"
],
"samples": 3
},
{
"path": "pkg/thing.py",
"line": 9000,
"func_name": "simple_function",
"type_comments": [
"(int, str) -> None"
],
"samples": 3
}
]
"""
with self.temporary_json_file(data) as source_path:
output_data = generate_annotations_json_string(source_path, only_simple=True)
assert output_data == [
{
"path": "pkg/thing.py",
"line": 9000,
"func_name": "simple_function",
"signature": {
"arg_types": [
"int",
"str"
],
"return_type": "None"
},
"samples": 3
}
]
@contextlib.contextmanager
def temporary_json_file(self, data):
# type: (str) -> Iterator[str]
source = None
try:
with tempfile.NamedTemporaryFile(mode='w', delete=False) as source:
source.write(data)
yield source.name
finally:
if source is not None:
os.remove(source.name)
@contextlib.contextmanager
def temporary_file(self):
# type: () -> Iterator[str]
target = None
try:
with tempfile.NamedTemporaryFile(mode='w', delete=False) as target:
pass
yield target.name
finally:
if target is not None:
os.remove(target.name)
|
