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import { addEdgeBranchLabel } from "./add-edge-branch-label";
import { NodeKind } from "../workflow.interface";
import { DBEdge, DBNode } from "app-types/workflow";
import { convertUINodeToDBNode } from "../shared.workflow";
import { createUINode } from "../create-ui-node";
describe("addEdgeBranchLabel", () => {
// Helper function to create a node
const createNode = (
id: string,
kind: NodeKind,
name: string = `Node ${id}`,
): DBNode => {
const uiNode = createUINode(kind, {
name,
id,
});
return convertUINodeToDBNode("workflowId", uiNode) as DBNode;
};
// Helper function to create an edge
const createEdge = (
id: string,
source: string,
target: string,
sourceHandle?: string,
label?: string,
): DBEdge => ({
id,
source,
target,
uiConfig: {
sourceHandle,
label,
},
workflowId: "workflowId",
createdAt: new Date(),
});
it("should add B0 label to single linear path", () => {
const nodes: DBNode[] = [
createNode("start", NodeKind.Input, "Start"),
createNode("llm1", NodeKind.LLM, "LLM1"),
createNode("end", NodeKind.Output, "End"),
];
const edges: DBEdge[] = [
createEdge("e1", "start", "llm1"),
createEdge("e2", "llm1", "end"),
];
addEdgeBranchLabel(nodes, edges);
expect(edges[0].uiConfig.label).toBe("B0");
expect(edges[1].uiConfig.label).toBe("B0");
});
it("should add parallel branch labels for multiple outputs from start", () => {
const nodes: DBNode[] = [
createNode("start", NodeKind.Input, "Start"),
createNode("llm1", NodeKind.LLM, "LLM1"),
createNode("llm2", NodeKind.LLM, "LLM2"),
createNode("end", NodeKind.Output, "End"),
];
const edges: DBEdge[] = [
createEdge("e1", "start", "llm1"),
createEdge("e2", "start", "llm2"),
createEdge("e3", "llm1", "end"),
createEdge("e4", "llm2", "end"),
];
addEdgeBranchLabel(nodes, edges);
expect(edges[0].uiConfig.label).toBe("B0.0");
expect(edges[1].uiConfig.label).toBe("B0.1");
expect(edges[2].uiConfig.label).toBe("B0.0");
expect(edges[3].uiConfig.label).toBe("B0.1");
});
it("should handle condition node with single edge per handle", () => {
const nodes: DBNode[] = [
createNode("start", NodeKind.Input, "Start"),
createNode("cond", NodeKind.Condition, "Condition"),
createNode("llm1", NodeKind.LLM, "LLM1"),
createNode("llm2", NodeKind.LLM, "LLM2"),
createNode("end", NodeKind.Output, "End"),
];
const edges: DBEdge[] = [
createEdge("e1", "start", "cond"),
createEdge("e2", "cond", "llm1", "true"),
createEdge("e3", "cond", "llm2", "false"),
createEdge("e4", "llm1", "end"),
createEdge("e5", "llm2", "end"),
];
addEdgeBranchLabel(nodes, edges);
expect(edges[0].uiConfig.label).toBe("B0");
expect(edges[1].uiConfig.label).toBe("B0"); // single edge from true handle
expect(edges[2].uiConfig.label).toBe("B0"); // single edge from false handle
expect(edges[3].uiConfig.label).toBe("B0");
expect(edges[4].uiConfig.label).toBe("B0");
});
it("should handle condition node with multiple edges per handle", () => {
const nodes: DBNode[] = [
createNode("start", NodeKind.Input, "Start"),
createNode("cond", NodeKind.Condition, "Condition"),
createNode("llm1", NodeKind.LLM, "LLM1"),
createNode("llm2", NodeKind.LLM, "LLM2"),
createNode("llm3", NodeKind.LLM, "LLM3"),
createNode("llm4", NodeKind.LLM, "LLM4"),
];
const edges: DBEdge[] = [
createEdge("e1", "start", "cond"),
createEdge("e2", "cond", "llm1", "true"),
createEdge("e3", "cond", "llm2", "true"),
createEdge("e4", "cond", "llm3", "false"),
createEdge("e5", "cond", "llm4", "false"),
];
addEdgeBranchLabel(nodes, edges);
expect(edges[0].uiConfig.label).toBe("B0");
expect(edges[1].uiConfig.label).toBe("B0.0"); // first edge from true handle
expect(edges[2].uiConfig.label).toBe("B0.1"); // second edge from true handle
expect(edges[3].uiConfig.label).toBe("B0.0"); // first edge from false handle
expect(edges[4].uiConfig.label).toBe("B0.1"); // second edge from false handle
});
it("should handle condition node with default handle", () => {
const nodes: DBNode[] = [
createNode("start", NodeKind.Input, "Start"),
createNode("cond", NodeKind.Condition, "Condition"),
createNode("llm1", NodeKind.LLM, "LLM1"),
createNode("llm2", NodeKind.LLM, "LLM2"),
];
const edges: DBEdge[] = [
createEdge("e1", "start", "cond"),
createEdge("e2", "cond", "llm1"), // no sourceHandle (default)
createEdge("e3", "cond", "llm2"), // no sourceHandle (default)
];
addEdgeBranchLabel(nodes, edges);
expect(edges[0].uiConfig.label).toBe("B0");
expect(edges[1].uiConfig.label).toBe("B0.0");
expect(edges[2].uiConfig.label).toBe("B0.1");
});
it("should handle complex workflow with mixed node types", () => {
const nodes: DBNode[] = [
createNode("start", NodeKind.Input, "Start"),
createNode("llm1", NodeKind.LLM, "LLM1"),
createNode("cond", NodeKind.Condition, "Condition"),
createNode("llm2", NodeKind.LLM, "LLM2"),
createNode("llm3", NodeKind.LLM, "LLM3"),
createNode("llm4", NodeKind.LLM, "LLM4"),
createNode("end", NodeKind.Output, "End"),
];
const edges: DBEdge[] = [
createEdge("e1", "start", "llm1"),
createEdge("e2", "llm1", "cond"),
createEdge("e3", "cond", "llm2", "true"),
createEdge("e4", "cond", "llm3", "false"),
createEdge("e5", "llm2", "llm4"),
createEdge("e6", "llm3", "llm4"),
createEdge("e7", "llm4", "end"),
];
addEdgeBranchLabel(nodes, edges);
expect(edges[0].uiConfig.label).toBe("B0"); // start -> llm1
expect(edges[1].uiConfig.label).toBe("B0"); // llm1 -> cond
expect(edges[2].uiConfig.label).toBe("B0"); // cond -> llm2 (true)
expect(edges[3].uiConfig.label).toBe("B0"); // cond -> llm3 (false)
expect(edges[4].uiConfig.label).toBe("B0"); // llm2 -> llm4
expect(edges[5].uiConfig.label).toBe("B0"); // llm3 -> llm4
expect(edges[6].uiConfig.label).toBe("B0"); // llm4 -> end
});
it("should handle nested parallel branches", () => {
const nodes: DBNode[] = [
createNode("start", NodeKind.Input, "Start"),
createNode("llm1", NodeKind.LLM, "LLM1"),
createNode("llm2", NodeKind.LLM, "LLM2"),
createNode("llm3", NodeKind.LLM, "LLM3"),
createNode("llm4", NodeKind.LLM, "LLM4"),
createNode("end", NodeKind.Output, "End"),
];
const edges: DBEdge[] = [
createEdge("e1", "start", "llm1"),
createEdge("e2", "start", "llm2"),
createEdge("e3", "llm1", "llm3"),
createEdge("e4", "llm1", "llm4"),
createEdge("e5", "llm2", "end"),
createEdge("e6", "llm3", "end"),
createEdge("e7", "llm4", "end"),
];
addEdgeBranchLabel(nodes, edges);
expect(edges[0].uiConfig.label).toBe("B0.0"); // start -> llm1
expect(edges[1].uiConfig.label).toBe("B0.1"); // start -> llm2
expect(edges[2].uiConfig.label).toBe("B0.0.0"); // llm1 -> llm3
expect(edges[3].uiConfig.label).toBe("B0.0.1"); // llm1 -> llm4
expect(edges[4].uiConfig.label).toBe("B0.1"); // llm2 -> end
expect(edges[5].uiConfig.label).toBe("B0.0.0"); // llm3 -> end
expect(edges[6].uiConfig.label).toBe("B0.0.1"); // llm4 -> end
});
it("should not overwrite existing labels and handle remaining path correctly", () => {
const nodes: DBNode[] = [
createNode("start", NodeKind.Input, "Start"),
createNode("llm1", NodeKind.LLM, "LLM1"),
createNode("llm2", NodeKind.LLM, "LLM2"),
createNode("end", NodeKind.Output, "End"),
];
const edges: DBEdge[] = [
createEdge("e1", "start", "llm1", undefined, "CustomLabel"),
createEdge("e2", "llm1", "llm2"),
createEdge("e3", "llm2", "end"),
];
addEdgeBranchLabel(nodes, edges);
expect(edges[0].uiConfig.label).toBe("CustomLabel"); // should not be overwritten
// Since the first edge has a custom label, the traversal stops there
// and doesn't continue to label the rest of the path
expect(edges[1].uiConfig.label).toBeUndefined();
expect(edges[2].uiConfig.label).toBeUndefined();
});
it("should handle single node workflow", () => {
const nodes: DBNode[] = [createNode("start", NodeKind.Input, "Start")];
const edges: DBEdge[] = [];
addEdgeBranchLabel(nodes, edges);
// Should not throw error with empty edges array
expect(edges).toHaveLength(0);
});
it("should handle disconnected subgraphs", () => {
const nodes: DBNode[] = [
createNode("start", NodeKind.Input, "Start"),
createNode("llm1", NodeKind.LLM, "LLM1"),
createNode("isolated", NodeKind.LLM, "Isolated"),
];
const edges: DBEdge[] = [
createEdge("e1", "start", "llm1"),
// isolated node has no connections
];
addEdgeBranchLabel(nodes, edges);
expect(edges[0].uiConfig.label).toBe("B0");
});
it("should handle condition node with mixed handle types", () => {
const nodes: DBNode[] = [
createNode("start", NodeKind.Input, "Start"),
createNode("cond", NodeKind.Condition, "Condition"),
createNode("llm1", NodeKind.LLM, "LLM1"),
createNode("llm2", NodeKind.LLM, "LLM2"),
createNode("llm3", NodeKind.LLM, "LLM3"),
createNode("llm4", NodeKind.LLM, "LLM4"),
];
const edges: DBEdge[] = [
createEdge("e1", "start", "cond"),
createEdge("e2", "cond", "llm1", "true"),
createEdge("e3", "cond", "llm2", "true"),
createEdge("e4", "cond", "llm3", "false"),
createEdge("e5", "cond", "llm4"), // default handle
];
addEdgeBranchLabel(nodes, edges);
expect(edges[0].uiConfig.label).toBe("B0");
expect(edges[1].uiConfig.label).toBe("B0.0"); // true handle, first edge
expect(edges[2].uiConfig.label).toBe("B0.1"); // true handle, second edge
expect(edges[3].uiConfig.label).toBe("B0"); // false handle, single edge
expect(edges[4].uiConfig.label).toBe("B0"); // default handle, single edge
});
it("should handle workflow with existing labels in the middle of path", () => {
const nodes: DBNode[] = [
createNode("start", NodeKind.Input, "Start"),
createNode("llm1", NodeKind.LLM, "LLM1"),
createNode("llm2", NodeKind.LLM, "LLM2"),
createNode("llm3", NodeKind.LLM, "LLM3"),
];
const edges: DBEdge[] = [
createEdge("e1", "start", "llm1"),
createEdge("e2", "llm1", "llm2", undefined, "ExistingLabel"),
createEdge("e3", "llm2", "llm3"),
];
addEdgeBranchLabel(nodes, edges);
expect(edges[0].uiConfig.label).toBe("B0");
expect(edges[1].uiConfig.label).toBe("ExistingLabel"); // existing label preserved
// The traversal should continue from llm2 since it was reached
expect(edges[2].uiConfig.label).toBeUndefined(); // but this won't be labeled since traversal stops at existing label
});
});
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