feat: Add SimpleAgentComponent and related pytests (#4318)

* simple ai agent

new component:
simple ai agent

py tests for tool calling agent as well as for simple ai agent

* Update simple_agent.py

update _config Changes and code oprimised

* Update simple_agent.py

Error or inputType as None Solved

* [autofix.ci] apply automated fixes

* fix: INP001 ruff error

* Update test_tool_calling_agent.py

added pytest mark as api required

* Update simple_agent.py

added system prompt

* [autofix.ci] apply automated fixes

* updates in the input field orders

* [autofix.ci] apply automated fixes

* Update simple_agent.py

chat memory added

* [autofix.ci] apply automated fixes

* lint Errors Solved

* Squashed commit of the following:

commit e965fd3b7f
Author: Sebastián Estévez <estevezsebastian@gmail.com>
Date:   Thu Oct 31 17:16:08 2024 -0400

    fix: broken docker test (#4337)

    * Fix broken docker test

    Fixes #4336

    Update the Docker test workflow to use the `get_version` function from `langflow.utils.version`.

    * Modify the `Test image` step in `.github/workflows/docker_test.yml` to use the `get_version` function instead of directly importing `__version__`.
    * Modify the `Test backend image` step in `.github/workflows/docker_test.yml` to use the `get_version` function instead of directly importing `__version__`.

    ---

    For more details, open the [Copilot Workspace session](https://copilot-workspace.githubnext.com/langflow-ai/langflow/issues/4336?shareId=XXXX-XXXX-XXXX-XXXX).

    * version.version not util.version

commit 3279b8a1e8
Author: Lucas Oliveira <62335616+lucaseduoli@users.noreply.github.com>
Date:   Thu Oct 31 16:39:58 2024 -0300

    fix: add collapsible function to templates and fix design bugs (#4305)

    * Updated colors

    * Fixed design for small screens

    * Change border radius

    * Changed size of text on templates description

    * Fix shine effect on small screens

    * Fixed icons on starter templates

    * Updated mono font to JetBrains

    * Updated icon hit area for X

    * Added gradient wrapper and x-gradient

    * Changed colors and font weights for nav component

    * Added zoom on hover of gradient

    * Fixed input size

    * Fixed all templates to show everything

    * Hide scrollbar

    * Change text size of card

    * Removed title of the categories

    * Removed unused currentTab from templatecategory

    * Updated position of search icon

    * Updated style of inputs

    * Updated search clear button

    * Fixed bug on small screens

    * Added no results query

    * Fixed background on get started cards

    * Added focus ring on nav component

    * Added tab index to search and sidebar buttons

    * Added keyboard navigation to templates

    * Updated templatesModal to use ShadCN Sidebar

    * Implemented collapsible sidebar

    * Fix collapsible to work on mobile but be overlaying content

    * Added noise to styleUtils

    * Updated padding and sizes for mobile

    * Updated text size

    * Updated font family to inter

    * Made get started components fetch title and description from the flow

    * Updated description on get started component

    * Updated naming of sidebar

    * Updated description of start from scratch

    * Updated color of selected sidebar item

    * Changed text color for sidebar not active items

    * changed description sizes

    * changed to line clamp

    * Reduced gap between icon and category text

    * Fixed no results state

    * Fixed X icon only appearing on hover

    * Fix auto focus issue

    * fixed hover color of primary button

    * Fixed gradients to use stops if it exists and stop using random gradient

    * removed random gradient

    * Fixed design of cards in templates

    * Updated nav to go through tests

    * Fixed focus on input

    * [autofix.ci] apply automated fixes

    * New color

    * fix testes

    * Fixed starter projects test

    * ✨ (starter-projects.spec.ts): add Page import to test function parameters for better code readability and maintainability
    📝 (starter-projects.spec.ts): refactor test to include a function for waiting for template visibility, improving code readability and reducing duplication

    ---------

    Co-authored-by: Cristhian Zanforlin Lousa <cristhian.lousa@gmail.com>
    Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

commit a03da10750
Author: Sebastián Estévez <estevezsebastian@gmail.com>
Date:   Thu Oct 31 14:57:07 2024 -0400

    fix: langfuse upgrade and crew result usage (#4342)

    * lanfuse upgrade and crew result usage

    * ✅ (Dynamic Agent.spec.ts): Enable tests for checking the presence of required environment variables before running the test suite.

    ✨ (Hierarchical Agent.spec.ts): Add integration test for Hierarchical Tasks Agent to ensure proper functionality and behavior
    ✨ (Sequential Task Agent.spec.ts): Add integration test for Sequential Tasks Agent to ensure proper functionality and behavior

    ---------

    Co-authored-by: cristhianzl <cristhian.lousa@gmail.com>

* [autofix.ci] apply automated fixes

* Update worker.py

adding  # noqa: to solve CI Error

* [autofix.ci] apply automated fixes

* Update worker.py

removed unused params that were causing the issue

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: italojohnny <italojohnnydosanjos@gmail.com>

src/backend/tests/unit/components/agents/test_agent_component.py

@@ -0,0 +1,29 @@
+import os
+
+import pytest
+from langflow.components.agents.agent import AgentComponent
+from langflow.components.tools.calculator import CalculatorToolComponent
+
+
+@pytest.mark.api_key_required
+@pytest.mark.asyncio
+async def test_agent_component_with_calculator():
+    # Mock inputs
+    tools = [CalculatorToolComponent().build_tool()]  # Use the Calculator component as a tool
+    input_value = "What is 2 + 2?"
+
+    api_key = os.environ["OPENAI_API_KEY"]
+    temperature = 0.1
+
+    # Initialize the AgentComponent with mocked inputs
+    agent = AgentComponent(
+        tools=tools,
+        input_value=input_value,
+        api_key=api_key,
+        model_name="gpt-4o",
+        llm_type="OpenAI",
+        temperature=temperature,
+    )
+
+    response = await agent.get_response()
+    assert "4" in response.data.get("text")

src/backend/tests/unit/components/agents/test_tool_calling_agent.py

@@ -0,0 +1,30 @@
+import os
+
+import pytest
+from langflow.components.agents.tool_calling import ToolCallingAgentComponent
+from langflow.components.models.openai import OpenAIModelComponent
+from langflow.components.tools.calculator import CalculatorToolComponent
+
+
+@pytest.mark.api_key_required
+@pytest.mark.asyncio
+async def test_tool_calling_agent_component():
+    tools = [CalculatorToolComponent().build_tool()]  # Use the Calculator component as a tool
+    input_value = "What is 2 + 2?"
+    chat_history = []
+    api_key = os.environ["OPENAI_API_KEY"]
+    temperature = 0.1
+
+    # Default OpenAI Model Component
+    llm_component = OpenAIModelComponent().set(
+        api_key=api_key,
+        temperature=temperature,
+    )
+    llm = llm_component.build_model()
+
+    agent = ToolCallingAgentComponent()
+    agent.set(llm=llm, tools=[tools], chat_history=chat_history, input_value=input_value)
+
+    # Chat output
+    response = await agent.message_response()
+    assert "4" in response.data.get("text")