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- Add max_usage_count and current_usage_count attributes to BaseTool - Implement usage limit checking in ToolUsage._use method - Add comprehensive tests for usage limit functionality - Maintain backward compatibility with None default for unlimited usage Co-Authored-By: Joe Moura <joao@crewai.com>
69 lines
2.0 KiB
Python
69 lines
2.0 KiB
Python
import pytest
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from unittest.mock import MagicMock, patch
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from crewai.tools import BaseTool, tool
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def test_tool_usage_limit():
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"""Test that tools respect usage limits."""
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class LimitedTool(BaseTool):
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name: str = "Limited Tool"
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description: str = "A tool with usage limits for testing"
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max_usage_count: int = 2
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def _run(self, input_text: str) -> str:
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return f"Processed {input_text}"
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tool = LimitedTool()
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result1 = tool.run(input_text="test1")
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assert result1 == "Processed test1"
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assert tool.current_usage_count == 1
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result2 = tool.run(input_text="test2")
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assert result2 == "Processed test2"
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assert tool.current_usage_count == 2
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def test_unlimited_tool_usage():
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"""Test that tools without usage limits work normally."""
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class UnlimitedTool(BaseTool):
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name: str = "Unlimited Tool"
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description: str = "A tool without usage limits"
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def _run(self, input_text: str) -> str:
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return f"Processed {input_text}"
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tool = UnlimitedTool()
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for i in range(5):
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result = tool.run(input_text=f"test{i}")
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assert result == f"Processed test{i}"
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assert tool.current_usage_count == i + 1
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def test_tool_decorator_with_usage_limit():
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"""Test usage limit with @tool decorator."""
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@tool("Test Tool", max_usage_count=3)
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def test_tool(input_text: str) -> str:
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"""A test tool."""
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return f"Result: {input_text}"
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assert test_tool.max_usage_count == 3
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assert test_tool.current_usage_count == 0
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result = test_tool.run(input_text="test")
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assert result == "Result: test"
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assert test_tool.current_usage_count == 1
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def test_default_unlimited_usage():
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"""Test that tools have unlimited usage by default."""
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@tool("Default Tool")
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def default_tool(input_text: str) -> str:
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"""A default tool."""
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return f"Result: {input_text}"
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assert default_tool.max_usage_count is None
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assert default_tool.current_usage_count == 0
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