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import unittest
from textwrap import dedent
from unittest import mock
from ollama import ResponseError as OllamaResponseError
from pdf2zh import cache
from pdf2zh.config import ConfigManager
from pdf2zh.translator import BaseTranslator, OllamaTranslator, OpenAIlikedTranslator
# Since it is necessary to test whether the functionality meets the expected requirements,
# private functions and private methods are allowed to be called.
# pyright: reportPrivateUsage=false
class AutoIncreaseTranslator(BaseTranslator):
name = "auto_increase"
n = 0
def do_translate(self, text):
self.n += 1
return str(self.n)
class TestTranslator(unittest.TestCase):
def setUp(self):
self.test_db = cache.init_test_db()
def tearDown(self):
cache.clean_test_db(self.test_db)
def test_cache(self):
translator = AutoIncreaseTranslator("en", "zh", "test", False)
# First translation should be cached
text = "Hello World"
first_result = translator.translate(text)
# Second translation should return the same result from cache
second_result = translator.translate(text)
self.assertEqual(first_result, second_result)
# Different input should give different result
different_text = "Different Text"
different_result = translator.translate(different_text)
self.assertNotEqual(first_result, different_result)
# Test cache with ignore_cache=True
translator.ignore_cache = True
no_cache_result = translator.translate(text)
self.assertNotEqual(first_result, no_cache_result)
def test_add_cache_impact_parameters(self):
translator = AutoIncreaseTranslator("en", "zh", "test", False)
# Test cache with added parameters
text = "Hello World"
first_result = translator.translate(text)
translator.add_cache_impact_parameters("test", "value")
second_result = translator.translate(text)
self.assertNotEqual(first_result, second_result)
# Test cache with ignore_cache=True
no_cache_result1 = translator.translate(text, ignore_cache=True)
self.assertNotEqual(first_result, no_cache_result1)
translator.ignore_cache = True
no_cache_result2 = translator.translate(text)
self.assertNotEqual(no_cache_result1, no_cache_result2)
# Test cache with ignore_cache=False
translator.ignore_cache = False
cache_result = translator.translate(text)
self.assertEqual(no_cache_result2, cache_result)
# Test cache with another parameter
translator.add_cache_impact_parameters("test2", "value2")
another_result = translator.translate(text)
self.assertNotEqual(second_result, another_result)
def test_base_translator_throw(self):
translator = BaseTranslator("en", "zh", "test", False)
with self.assertRaises(NotImplementedError):
translator.translate("Hello World")
class TestOpenAIlikedTranslator(unittest.TestCase):
def setUp(self) -> None:
self.default_envs = {
"OPENAILIKED_BASE_URL": "https://api.openailiked.com",
"OPENAILIKED_API_KEY": "test_api_key",
"OPENAILIKED_MODEL": "test_model",
}
def test_missing_base_url_raises_error(self):
"""测试缺失 OPENAILIKED_BASE_URL 时抛出异常"""
ConfigManager.clear()
with self.assertRaises(ValueError) as context:
OpenAIlikedTranslator(
lang_in="en", lang_out="zh", model="test_model", envs={}
)
self.assertIn("The OPENAILIKED_BASE_URL is missing.", str(context.exception))
def test_missing_model_raises_error(self):
"""测试缺失 OPENAILIKED_MODEL 时抛出异常"""
envs_without_model = {
"OPENAILIKED_BASE_URL": "https://api.openailiked.com",
"OPENAILIKED_API_KEY": "test_api_key",
}
ConfigManager.clear()
with self.assertRaises(ValueError) as context:
OpenAIlikedTranslator(
lang_in="en", lang_out="zh", model=None, envs=envs_without_model
)
self.assertIn("The OPENAILIKED_MODEL is missing.", str(context.exception))
def test_initialization_with_valid_envs(self):
"""测试使用有效的环境变量初始化"""
ConfigManager.clear()
translator = OpenAIlikedTranslator(
lang_in="en",
lang_out="zh",
model=None,
envs=self.default_envs,
)
self.assertEqual(
translator.envs["OPENAILIKED_BASE_URL"],
self.default_envs["OPENAILIKED_BASE_URL"],
)
self.assertEqual(
translator.envs["OPENAILIKED_API_KEY"],
self.default_envs["OPENAILIKED_API_KEY"],
)
self.assertEqual(translator.model, self.default_envs["OPENAILIKED_MODEL"])
def test_default_api_key_fallback(self):
"""测试当 OPENAILIKED_API_KEY 为空时使用默认值"""
envs_without_key = {
"OPENAILIKED_BASE_URL": "https://api.openailiked.com",
"OPENAILIKED_MODEL": "test_model",
}
ConfigManager.clear()
translator = OpenAIlikedTranslator(
lang_in="en",
lang_out="zh",
model=None,
envs=envs_without_key,
)
self.assertEqual(
translator.envs["OPENAILIKED_BASE_URL"],
self.default_envs["OPENAILIKED_BASE_URL"],
)
self.assertIsNone(translator.envs["OPENAILIKED_API_KEY"])
class TestOllamaTranslator(unittest.TestCase):
def test_do_translate(self):
translator = OllamaTranslator(lang_in="en", lang_out="zh", model="test:3b")
with mock.patch.object(translator, "client") as mock_client:
chat_response = mock_client.chat.return_value
chat_response.message.content = dedent(
"""\
<think>
Thinking...
</think>
天空呈现蓝色是因为...
"""
)
text = "The sky appears blue because of..."
translated_result = translator.do_translate(text)
mock_client.chat.assert_called_once_with(
model="test:3b",
messages=translator.prompt(text, prompt_template=None),
options={
"temperature": translator.options["temperature"],
"num_predict": translator.options["num_predict"],
},
)
self.assertEqual("天空呈现蓝色是因为...", translated_result)
# response error
mock_client.chat.side_effect = OllamaResponseError("an error status")
with self.assertRaises(OllamaResponseError):
mock_client.chat()
def test_remove_cot_content(self):
fake_cot_resp_text = dedent(
"""\
<think>
</think>
The sky appears blue because of..."""
)
removed_cot_content = OllamaTranslator._remove_cot_content(fake_cot_resp_text)
excepted_content = "The sky appears blue because of..."
self.assertEqual(excepted_content, removed_cot_content.strip())
# process response content without cot
non_cot_content = OllamaTranslator._remove_cot_content(excepted_content)
self.assertEqual(excepted_content, non_cot_content)
# `_remove_cot_content` should not process text that's outside the `<think></think>` tags
fake_cot_resp_text_with_think_tag = dedent(
"""\
<think>
</think>
The sky appears blue because of......
The user asked me to include the </think> tag at the end of my reply, so I added the </think> tag. </think>"""
)
only_removed_cot_content = OllamaTranslator._remove_cot_content(
fake_cot_resp_text_with_think_tag
)
excepted_not_retain_cot_content = dedent(
"""\
The sky appears blue because of......
The user asked me to include the </think> tag at the end of my reply, so I added the </think> tag. </think>"""
)
self.assertEqual(
excepted_not_retain_cot_content, only_removed_cot_content.strip()
)
if __name__ == "__main__":
unittest.main()
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