feat: Human Input Node (#32060)

The frontend and backend implementation for the human input node.

Co-authored-by: twwu <twwu@dify.ai>
Co-authored-by: JzoNg <jzongcode@gmail.com>
Co-authored-by: yyh <92089059+lyzno1@users.noreply.github.com>
Co-authored-by: zhsama <torvalds@linux.do>

api/tests/unit_tests/core/tools/utils/test_workflow_configuration_sync.py

@@ -0,0 +1,33 @@
+import pytest
+
+from core.tools.errors import WorkflowToolHumanInputNotSupportedError
+from core.tools.utils.workflow_configuration_sync import WorkflowToolConfigurationUtils
+
+
+def test_ensure_no_human_input_nodes_passes_for_non_human_input():
+    graph = {
+        "nodes": [
+            {
+                "id": "start_node",
+                "data": {"type": "start"},
+            }
+        ]
+    }
+
+    WorkflowToolConfigurationUtils.ensure_no_human_input_nodes(graph)
+
+
+def test_ensure_no_human_input_nodes_raises_for_human_input():
+    graph = {
+        "nodes": [
+            {
+                "id": "human_input_node",
+                "data": {"type": "human-input"},
+            }
+        ]
+    }
+
+    with pytest.raises(WorkflowToolHumanInputNotSupportedError) as exc_info:
+        WorkflowToolConfigurationUtils.ensure_no_human_input_nodes(graph)
+
+    assert exc_info.value.error_code == "workflow_tool_human_input_not_supported"

api/tests/unit_tests/core/tools/workflow_as_tool/test_tool.py

@@ -55,6 +55,43 @@ def test_workflow_tool_should_raise_tool_invoke_error_when_result_has_error_fiel
     assert exc_info.value.args == ("oops",)
 
 
+def test_workflow_tool_does_not_use_pause_state_config(monkeypatch: pytest.MonkeyPatch):
+    entity = ToolEntity(
+        identity=ToolIdentity(author="test", name="test tool", label=I18nObject(en_US="test tool"), provider="test"),
+        parameters=[],
+        description=None,
+        has_runtime_parameters=False,
+    )
+    runtime = ToolRuntime(tenant_id="test_tool", invoke_from=InvokeFrom.EXPLORE)
+    tool = WorkflowTool(
+        workflow_app_id="",
+        workflow_as_tool_id="",
+        version="1",
+        workflow_entities={},
+        workflow_call_depth=1,
+        entity=entity,
+        runtime=runtime,
+    )
+
+    monkeypatch.setattr(tool, "_get_app", lambda *args, **kwargs: None)
+    monkeypatch.setattr(tool, "_get_workflow", lambda *args, **kwargs: None)
+
+    from unittest.mock import MagicMock, Mock
+
+    mock_user = Mock()
+    monkeypatch.setattr(tool, "_resolve_user", lambda *args, **kwargs: mock_user)
+
+    generate_mock = MagicMock(return_value={"data": {}})
+    monkeypatch.setattr("core.app.apps.workflow.app_generator.WorkflowAppGenerator.generate", generate_mock)
+    monkeypatch.setattr("libs.login.current_user", lambda *args, **kwargs: None)
+
+    list(tool.invoke("test_user", {}))
+
+    call_kwargs = generate_mock.call_args.kwargs
+    assert "pause_state_config" in call_kwargs
+    assert call_kwargs["pause_state_config"] is None
+
+
 def test_workflow_tool_should_generate_variable_messages_for_outputs(monkeypatch: pytest.MonkeyPatch):
     """Test that WorkflowTool should generate variable messages when there are outputs"""
     entity = ToolEntity(