I can show WorkflowDesigner tab

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tests/tests_workflows_db_manager.py

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+from unittest.mock import patch
+
+import pytest
+
+from components.workflows.constants import WORKFLOWS_SETTINGS_ENTRY
+from components.workflows.db_management import WorkflowsDbManager, WorkflowsSettings
+from core.settings_management import SettingsManager, MemoryDbEngine
+
+USER_EMAIL = "test@mail.com"
+USER_ID = "test_user"
+
+
+@pytest.fixture
+def session():
+  return {"user_id": USER_ID, "user_email": USER_EMAIL}
+
+
+@pytest.fixture
+def settings_manager():
+  return SettingsManager(engine=MemoryDbEngine())
+
+
+@pytest.fixture
+def workflows_db_manager(session, settings_manager):
+  return WorkflowsDbManager(session=session, settings_manager=settings_manager)
+
+
+def test_add_workflow(workflows_db_manager):
+  # Test adding a new workflow
+  assert workflows_db_manager.add_workflow("workflow1") is True
+  
+  # Verify workflow was added
+  workflows = workflows_db_manager.get_workflows()
+  assert "workflow1" in workflows
+  assert len(workflows) == 1
+
+
+def test_add_workflow_empty_name(workflows_db_manager):
+  # Test adding a workflow with empty name raises ValueError
+  with pytest.raises(ValueError, match="Workflow name cannot be empty."):
+    workflows_db_manager.add_workflow("")
+
+
+def test_add_workflow_duplicate(workflows_db_manager):
+  # Add a workflow
+  workflows_db_manager.add_workflow("workflow1")
+  
+  # Test adding duplicate workflow raises ValueError
+  with pytest.raises(ValueError, match="Workflow 'workflow1' already exists."):
+    workflows_db_manager.add_workflow("workflow1")
+
+
+def test_get_workflow(workflows_db_manager):
+  # Add a workflow
+  workflows_db_manager.add_workflow("workflow1")
+  
+  # Test getting the workflow
+  workflow = workflows_db_manager.get_workflow("workflow1")
+  assert workflow == "workflow1"
+
+
+def test_get_workflow_empty_name(workflows_db_manager):
+  # Test getting a workflow with empty name raises ValueError
+  with pytest.raises(ValueError, match="Workflow name cannot be empty."):
+    workflows_db_manager.get_workflow("")
+
+
+def test_get_workflow_nonexistent(workflows_db_manager):
+  # Test getting a non-existent workflow raises ValueError
+  with pytest.raises(ValueError, match="Workflow 'nonexistent' does not exist."):
+    workflows_db_manager.get_workflow("nonexistent")
+
+
+def test_remove_workflow(workflows_db_manager):
+  # Add a workflow
+  workflows_db_manager.add_workflow("workflow1")
+  
+  # Test removing the workflow
+  assert workflows_db_manager.remove_workflow("workflow1") is True
+  
+  # Verify workflow was removed
+  assert len(workflows_db_manager.get_workflows()) == 0
+
+
+def test_remove_workflow_empty_name(workflows_db_manager):
+  # Test removing a workflow with empty name raises ValueError
+  with pytest.raises(ValueError, match="Workflow name cannot be empty."):
+    workflows_db_manager.remove_workflow("")
+
+
+def test_remove_workflow_nonexistent(workflows_db_manager):
+  # Test removing a non-existent workflow raises ValueError
+  with pytest.raises(ValueError, match="workflow 'nonexistent' does not exist."):
+    workflows_db_manager.remove_workflow("nonexistent")
+
+
+def test_exists_workflow(workflows_db_manager):
+  # Add a workflow
+  workflows_db_manager.add_workflow("workflow1")
+  
+  # Test workflow exists
+  assert workflows_db_manager.exists_workflow("workflow1") is True
+  
+  # Test non-existent workflow
+  assert workflows_db_manager.exists_workflow("nonexistent") is False
+
+
+def test_exists_workflow_empty_name(workflows_db_manager):
+  # Test checking existence of workflow with empty name raises ValueError
+  with pytest.raises(ValueError, match="workflow name cannot be empty."):
+    workflows_db_manager.exists_workflow("")
+
+
+def test_get_workflows(workflows_db_manager):
+  # Initially, no workflows
+  assert len(workflows_db_manager.get_workflows()) == 0
+  
+  # Add workflows
+  workflows_db_manager.add_workflow("workflow1")
+  workflows_db_manager.add_workflow("workflow2")
+  
+  # Test getting all workflows
+  workflows = workflows_db_manager.get_workflows()
+  assert "workflow1" in workflows
+  assert "workflow2" in workflows
+  assert len(workflows) == 2
+
+
+def test_select_workflow(workflows_db_manager):
+  # Add a workflow
+  workflows_db_manager.add_workflow("workflow1")
+  
+  # Select the workflow
+  workflows_db_manager.select_workflow("workflow1")
+  
+  # Verify workflow was selected
+  assert workflows_db_manager.get_selected_workflow() == "workflow1"
+
+ 
+def test_get_selected_workflow_none(workflows_db_manager):
+  # Initially, no selected workflow
+  assert workflows_db_manager.get_selected_workflow() is None
+
+
+def test_get_settings_default(workflows_db_manager, session, settings_manager):
+  # Test _get_settings returns default settings when none exist
+  with patch.object(settings_manager, 'load', return_value=WorkflowsSettings()) as mock_load:
+    settings = workflows_db_manager._get_settings()
+    mock_load.assert_called_once_with(session, WORKFLOWS_SETTINGS_ENTRY, default=WorkflowsSettings())
+    assert isinstance(settings, WorkflowsSettings)
+    assert settings.workflows == []
+    assert settings.selected_workflow is None