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# coding=utf-8
# Copyright 2023 HuggingFace Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import unittest
from transformers.testing_utils import CaptureStdout
from transformers.tools.python_interpreter import evaluate
# Fake function we will use as tool
def add_two(x):
return x + 2
class PythonInterpreterTester(unittest.TestCase):
def test_evaluate_assign(self):
code = "x = 3"
state = {}
result = evaluate(code, {}, state=state)
assert result == 3
self.assertDictEqual(state, {"x": 3})
code = "x = y"
state = {"y": 5}
result = evaluate(code, {}, state=state)
# evaluate returns the value of the last assignment.
assert result == 5
self.assertDictEqual(state, {"x": 5, "y": 5})
def test_evaluate_call(self):
code = "y = add_two(x)"
state = {"x": 3}
result = evaluate(code, {"add_two": add_two}, state=state)
assert result == 5
self.assertDictEqual(state, {"x": 3, "y": 5})
# Won't work without the tool
with CaptureStdout() as out:
result = evaluate(code, {}, state=state)
assert result is None
assert "tried to execute add_two" in out.out
def test_evaluate_constant(self):
code = "x = 3"
state = {}
result = evaluate(code, {}, state=state)
assert result == 3
self.assertDictEqual(state, {"x": 3})
def test_evaluate_dict(self):
code = "test_dict = {'x': x, 'y': add_two(x)}"
state = {"x": 3}
result = evaluate(code, {"add_two": add_two}, state=state)
self.assertDictEqual(result, {"x": 3, "y": 5})
self.assertDictEqual(state, {"x": 3, "test_dict": {"x": 3, "y": 5}})
def test_evaluate_expression(self):
code = "x = 3\ny = 5"
state = {}
result = evaluate(code, {}, state=state)
# evaluate returns the value of the last assignment.
assert result == 5
self.assertDictEqual(state, {"x": 3, "y": 5})
def test_evaluate_f_string(self):
code = "text = f'This is x: {x}.'"
state = {"x": 3}
result = evaluate(code, {}, state=state)
# evaluate returns the value of the last assignment.
assert result == "This is x: 3."
self.assertDictEqual(state, {"x": 3, "text": "This is x: 3."})
def test_evaluate_if(self):
code = "if x <= 3:\n y = 2\nelse:\n y = 5"
state = {"x": 3}
result = evaluate(code, {}, state=state)
# evaluate returns the value of the last assignment.
assert result == 2
self.assertDictEqual(state, {"x": 3, "y": 2})
state = {"x": 8}
result = evaluate(code, {}, state=state)
# evaluate returns the value of the last assignment.
assert result == 5
self.assertDictEqual(state, {"x": 8, "y": 5})
def test_evaluate_list(self):
code = "test_list = [x, add_two(x)]"
state = {"x": 3}
result = evaluate(code, {"add_two": add_two}, state=state)
self.assertListEqual(result, [3, 5])
self.assertDictEqual(state, {"x": 3, "test_list": [3, 5]})
def test_evaluate_name(self):
code = "y = x"
state = {"x": 3}
result = evaluate(code, {}, state=state)
assert result == 3
self.assertDictEqual(state, {"x": 3, "y": 3})
def test_evaluate_subscript(self):
code = "test_list = [x, add_two(x)]\ntest_list[1]"
state = {"x": 3}
result = evaluate(code, {"add_two": add_two}, state=state)
assert result == 5
self.assertDictEqual(state, {"x": 3, "test_list": [3, 5]})
code = "test_dict = {'x': x, 'y': add_two(x)}\ntest_dict['y']"
state = {"x": 3}
result = evaluate(code, {"add_two": add_two}, state=state)
assert result == 5
self.assertDictEqual(state, {"x": 3, "test_dict": {"x": 3, "y": 5}})
def test_evaluate_for(self):
code = "x = 0\nfor i in range(3):\n x = i"
state = {}
result = evaluate(code, {"range": range}, state=state)
assert result == 2
self.assertDictEqual(state, {"x": 2, "i": 2})
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