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Fix failing cost calculation test 

When updating the model pricing in commit 50fa0cc5ae I forgot to update
the associated test. As well as fixing this test, this commit also
updates the calculation to use `math.floor` instead of `round` to round
to six decimal places. This is because the `round` function appeared to
round incorrectly. For example, when running the test, 0.0000275 was
rounded to 0.000028 instead of the expected 0.000028.
This commit is contained in:
Paul Harrison 2024-02-23 10:45:58 +00:00
parent aade152486
commit 98cee09c19
3 changed files with 11 additions and 9 deletions
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2
pyproject.toml
View File

@ -1,6 +1,6 @@
[tool.poetry] [tool.poetry]
name = "llm-chat" name = "llm-chat"
version = "1.1.2" version = "1.1.3"
description = "A general CLI interface for large language models." description = "A general CLI interface for large language models."
authors = ["Paul Harrison <paul@harrison.sh>"] authors = ["Paul Harrison <paul@harrison.sh>"]
readme = "README.md" readme = "README.md"

16
src/llm_chat/chat.py
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@ -1,3 +1,4 @@
import math
from datetime import datetime from datetime import datetime
from enum import StrEnum, auto from enum import StrEnum, auto
from pathlib import Path from pathlib import Path
@ -177,13 +178,14 @@ class Chat:
"""Calculate the cost of a request.""" """Calculate the cost of a request."""
self.conversation.completion_tokens += usage.completion_tokens self.conversation.completion_tokens += usage.completion_tokens
self.conversation.prompt_tokens += usage.prompt_tokens self.conversation.prompt_tokens += usage.prompt_tokens
self.conversation.cost = round( self.conversation.cost = math.floor(
(self.conversation.completion_tokens / 1000) 1000000 * (
* self._pricing[self.settings.model][Token.COMPLETION] (self.conversation.completion_tokens / 1000)
+ (self.conversation.prompt_tokens / 1000) * self._pricing[self.settings.model][Token.COMPLETION]
* self._pricing[self.settings.model][Token.PROMPT], + (self.conversation.prompt_tokens / 1000)
6, * self._pricing[self.settings.model][Token.PROMPT]
) )
) / 1000000
def save(self) -> None: def save(self) -> None:
"""Save the conversation to the history directory.""" """Save the conversation to the history directory."""

2
tests/test_chat.py
View File

@ -116,7 +116,7 @@ def test_send_message() -> None:
assert response == "Hello!" assert response == "Hello!"
@pytest.mark.parametrize("model,cost", [(Model.GPT3, 0.000043), (Model.GPT4, 0.00105)]) @pytest.mark.parametrize("model,cost", [(Model.GPT3, round(0.000027, 6)), (Model.GPT4, 0.00105)])
def test_calculate_cost(model: Model, cost: float) -> None: def test_calculate_cost(model: Model, cost: float) -> None:
with patch("llm_chat.chat.Chat._make_request") as mock_make_request: with patch("llm_chat.chat.Chat._make_request") as mock_make_request:
mock_make_request.return_value = ChatCompletion( mock_make_request.return_value = ChatCompletion(