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https://github.com/Comfy-Org/ComfyUI_frontend.git
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365 lines
12 KiB
TypeScript
365 lines
12 KiB
TypeScript
/**
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* SubgraphEdgeCases Tests
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*
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* Tests for edge cases, error handling, and boundary conditions in the subgraph system.
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* This covers unusual scenarios, invalid states, and stress testing.
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*/
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import { describe, expect, it } from "vitest"
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import { LGraph, LGraphNode, Subgraph } from "@/litegraph"
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import {
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createNestedSubgraphs,
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createTestSubgraph,
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createTestSubgraphNode,
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} from "./fixtures/subgraphHelpers"
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describe("SubgraphEdgeCases - Recursion Detection", () => {
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it("should handle circular subgraph references without crashing", () => {
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const sub1 = createTestSubgraph({ name: "Sub1" })
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const sub2 = createTestSubgraph({ name: "Sub2" })
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// Create circular reference
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const node1 = createTestSubgraphNode(sub1, { id: 1 })
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const node2 = createTestSubgraphNode(sub2, { id: 2 })
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sub1.add(node2)
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sub2.add(node1)
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// Should not crash or hang - currently throws path resolution error due to circular structure
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expect(() => {
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const executableNodes = new Map()
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node1.getInnerNodes(executableNodes)
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}).toThrow(/Node \[\d+\] not found/) // Current behavior: path resolution fails
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})
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it("should handle deep nesting scenarios", () => {
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// Test with reasonable depth to avoid timeout
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const nested = createNestedSubgraphs({ depth: 10, nodesPerLevel: 1 })
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// Should create nested structure without errors
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expect(nested.subgraphs).toHaveLength(10)
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expect(nested.subgraphNodes).toHaveLength(10)
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// First level should exist and be accessible
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const firstLevel = nested.rootGraph.nodes[0]
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expect(firstLevel).toBeDefined()
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expect(firstLevel.isSubgraphNode()).toBe(true)
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})
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it.todo("should use WeakSet for cycle detection", () => {
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// TODO: This test is currently skipped because cycle detection has a bug
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// The fix is to pass 'visited' directly instead of 'new Set(visited)' in SubgraphNode.ts:299
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const subgraph = createTestSubgraph({ nodeCount: 1 })
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const subgraphNode = createTestSubgraphNode(subgraph)
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// Add to own subgraph to create cycle
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subgraph.add(subgraphNode)
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// Should throw due to cycle detection
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const executableNodes = new Map()
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expect(() => {
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subgraphNode.getInnerNodes(executableNodes)
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}).toThrow(/while flattening subgraph/i)
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})
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it("should respect MAX_NESTED_SUBGRAPHS constant", () => {
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// Verify the constant exists and is a reasonable positive number
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expect(Subgraph.MAX_NESTED_SUBGRAPHS).toBeDefined()
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expect(typeof Subgraph.MAX_NESTED_SUBGRAPHS).toBe("number")
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expect(Subgraph.MAX_NESTED_SUBGRAPHS).toBeGreaterThan(0)
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expect(Subgraph.MAX_NESTED_SUBGRAPHS).toBeLessThanOrEqual(10_000) // Reasonable upper bound
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// Note: Currently not enforced in implementation
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// This test documents the intended behavior
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})
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})
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describe("SubgraphEdgeCases - Invalid States", () => {
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it("should handle removing non-existent inputs gracefully", () => {
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const subgraph = createTestSubgraph()
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const fakeInput = { name: "fake", type: "number", disconnect: () => {} } as any
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// Should throw appropriate error for non-existent input
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expect(() => {
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subgraph.removeInput(fakeInput)
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}).toThrow(/Input not found/) // Expected error
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})
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it("should handle removing non-existent outputs gracefully", () => {
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const subgraph = createTestSubgraph()
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const fakeOutput = { name: "fake", type: "number", disconnect: () => {} } as any
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expect(() => {
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subgraph.removeOutput(fakeOutput)
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}).toThrow(/Output not found/) // Expected error
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})
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it("should handle null/undefined input names", () => {
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const subgraph = createTestSubgraph()
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// ISSUE: Current implementation allows null/undefined names which may cause runtime errors
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// TODO: Consider adding validation to prevent null/undefined names
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// This test documents the current permissive behavior
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expect(() => {
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subgraph.addInput(null as any, "number")
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}).not.toThrow() // Current behavior: allows null
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expect(() => {
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subgraph.addInput(undefined as any, "number")
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}).not.toThrow() // Current behavior: allows undefined
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})
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it("should handle null/undefined output names", () => {
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const subgraph = createTestSubgraph()
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// ISSUE: Current implementation allows null/undefined names which may cause runtime errors
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// TODO: Consider adding validation to prevent null/undefined names
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// This test documents the current permissive behavior
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expect(() => {
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subgraph.addOutput(null as any, "number")
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}).not.toThrow() // Current behavior: allows null
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expect(() => {
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subgraph.addOutput(undefined as any, "number")
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}).not.toThrow() // Current behavior: allows undefined
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})
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it("should handle empty string names", () => {
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const subgraph = createTestSubgraph()
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// Current implementation may allow empty strings
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// Document the actual behavior
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expect(() => {
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subgraph.addInput("", "number")
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}).not.toThrow() // Current behavior: allows empty strings
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expect(() => {
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subgraph.addOutput("", "number")
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}).not.toThrow() // Current behavior: allows empty strings
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})
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it("should handle undefined types gracefully", () => {
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const subgraph = createTestSubgraph()
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// Undefined type should not crash but may have default behavior
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expect(() => {
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subgraph.addInput("test", undefined as any)
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}).not.toThrow()
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expect(() => {
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subgraph.addOutput("test", undefined as any)
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}).not.toThrow()
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})
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it("should handle duplicate slot names", () => {
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const subgraph = createTestSubgraph()
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// Add first input
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subgraph.addInput("duplicate", "number")
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// Adding duplicate should not crash (current behavior allows it)
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expect(() => {
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subgraph.addInput("duplicate", "string")
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}).not.toThrow()
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// Should now have 2 inputs with same name
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expect(subgraph.inputs.length).toBe(2)
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expect(subgraph.inputs[0].name).toBe("duplicate")
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expect(subgraph.inputs[1].name).toBe("duplicate")
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})
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})
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describe("SubgraphEdgeCases - Boundary Conditions", () => {
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it("should handle empty subgraphs (no nodes, no IO)", () => {
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const subgraph = createTestSubgraph({ nodeCount: 0 })
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const subgraphNode = createTestSubgraphNode(subgraph)
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// Should handle empty subgraph without errors
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const executableNodes = new Map()
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const flattened = subgraphNode.getInnerNodes(executableNodes)
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expect(flattened).toHaveLength(0)
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expect(subgraph.inputs).toHaveLength(0)
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expect(subgraph.outputs).toHaveLength(0)
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})
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it("should handle single input/output subgraphs", () => {
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const subgraph = createTestSubgraph({
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inputs: [{ name: "single_in", type: "number" }],
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outputs: [{ name: "single_out", type: "number" }],
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nodeCount: 1,
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})
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const subgraphNode = createTestSubgraphNode(subgraph)
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expect(subgraphNode.inputs).toHaveLength(1)
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expect(subgraphNode.outputs).toHaveLength(1)
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expect(subgraphNode.inputs[0].name).toBe("single_in")
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expect(subgraphNode.outputs[0].name).toBe("single_out")
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})
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it("should handle subgraphs with many slots", () => {
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const subgraph = createTestSubgraph({ nodeCount: 1 })
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// Add many inputs (test with 20 to keep test fast)
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for (let i = 0; i < 20; i++) {
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subgraph.addInput(`input_${i}`, "number")
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}
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// Add many outputs
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for (let i = 0; i < 20; i++) {
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subgraph.addOutput(`output_${i}`, "number")
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}
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const subgraphNode = createTestSubgraphNode(subgraph)
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expect(subgraph.inputs).toHaveLength(20)
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expect(subgraph.outputs).toHaveLength(20)
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expect(subgraphNode.inputs).toHaveLength(20)
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expect(subgraphNode.outputs).toHaveLength(20)
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// Should still flatten correctly
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const executableNodes = new Map()
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const flattened = subgraphNode.getInnerNodes(executableNodes)
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expect(flattened).toHaveLength(1) // Original node count
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})
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it("should handle very long slot names", () => {
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const subgraph = createTestSubgraph()
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const longName = "a".repeat(1000) // 1000 character name
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expect(() => {
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subgraph.addInput(longName, "number")
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subgraph.addOutput(longName, "string")
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}).not.toThrow()
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expect(subgraph.inputs[0].name).toBe(longName)
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expect(subgraph.outputs[0].name).toBe(longName)
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})
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it("should handle Unicode characters in names", () => {
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const subgraph = createTestSubgraph()
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const unicodeName = "测试_🚀_تست_тест"
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expect(() => {
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subgraph.addInput(unicodeName, "number")
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subgraph.addOutput(unicodeName, "string")
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}).not.toThrow()
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expect(subgraph.inputs[0].name).toBe(unicodeName)
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expect(subgraph.outputs[0].name).toBe(unicodeName)
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})
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})
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describe("SubgraphEdgeCases - Type Validation", () => {
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it("should allow connecting mismatched types (no validation currently)", () => {
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const rootGraph = new LGraph()
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const subgraph = createTestSubgraph()
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subgraph.addInput("num", "number")
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subgraph.addOutput("str", "string")
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// Create a basic node manually since createNode is not available
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const numberNode = new LGraphNode("basic/const")
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numberNode.addOutput("value", "number")
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rootGraph.add(numberNode)
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const subgraphNode = createTestSubgraphNode(subgraph)
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rootGraph.add(subgraphNode)
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// Currently allows mismatched connections (no type validation)
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expect(() => {
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numberNode.connect(0, subgraphNode, 0)
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}).not.toThrow()
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})
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it("should handle invalid type strings", () => {
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const subgraph = createTestSubgraph()
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// These should not crash (current behavior)
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expect(() => {
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subgraph.addInput("test1", "invalid_type")
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subgraph.addInput("test2", "")
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subgraph.addInput("test3", "123")
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subgraph.addInput("test4", "special!@#$%")
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}).not.toThrow()
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})
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it("should handle complex type strings", () => {
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const subgraph = createTestSubgraph()
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expect(() => {
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subgraph.addInput("array", "array<number>")
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subgraph.addInput("object", "object<{x: number, y: string}>")
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subgraph.addInput("union", "number|string")
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}).not.toThrow()
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expect(subgraph.inputs).toHaveLength(3)
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expect(subgraph.inputs[0].type).toBe("array<number>")
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expect(subgraph.inputs[1].type).toBe("object<{x: number, y: string}>")
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expect(subgraph.inputs[2].type).toBe("number|string")
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})
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})
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describe("SubgraphEdgeCases - Performance and Scale", () => {
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it("should handle large numbers of nodes in subgraph", () => {
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// Create subgraph with many nodes (keep reasonable for test speed)
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const subgraph = createTestSubgraph({ nodeCount: 50 })
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const subgraphNode = createTestSubgraphNode(subgraph)
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const executableNodes = new Map()
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const flattened = subgraphNode.getInnerNodes(executableNodes)
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expect(flattened).toHaveLength(50)
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// Performance is acceptable for 50 nodes (typically < 1ms)
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})
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it("should handle rapid IO changes", () => {
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const subgraph = createTestSubgraph()
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// Rapidly add and remove inputs/outputs
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for (let i = 0; i < 10; i++) {
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const input = subgraph.addInput(`rapid_${i}`, "number")
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const output = subgraph.addOutput(`rapid_${i}`, "number")
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// Remove them immediately
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subgraph.removeInput(input)
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subgraph.removeOutput(output)
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}
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// Should end up with no inputs/outputs
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expect(subgraph.inputs).toHaveLength(0)
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expect(subgraph.outputs).toHaveLength(0)
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})
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it("should handle concurrent modifications safely", () => {
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// This test ensures the system doesn't crash under concurrent access
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// Note: JavaScript is single-threaded, so this tests rapid sequential access
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const subgraph = createTestSubgraph({ nodeCount: 5 })
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const subgraphNode = createTestSubgraphNode(subgraph)
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// Simulate concurrent operations
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const operations = []
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for (let i = 0; i < 20; i++) {
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operations.push(() => {
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const executableNodes = new Map()
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subgraphNode.getInnerNodes(executableNodes)
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}, () => {
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subgraph.addInput(`concurrent_${i}`, "number")
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}, () => {
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if (subgraph.inputs.length > 0) {
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subgraph.removeInput(subgraph.inputs[0])
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}
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})
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}
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// Execute all operations - should not crash
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expect(() => {
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for (const op of operations) op()
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}).not.toThrow()
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})
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})
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