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// SPDX-License-Identifier: AGPL-3.0-or-later
import { buildParser, field, language, repeat, semanticToken, seq } from "@modelscript/dsl";
import {
executeBgpQuery,
executeDLQuery,
formatBgpQueryResult,
parseDLQuery,
parsePropertyPathExpression,
TableauReasoner,
} from "@modelscript/runtime/wasm_ontology.js";
import * as childProcess from "child_process";
import * as fs from "fs";
import * as path from "path";
import { fileURLToPath } from "url";
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const testDsl = language({
name: "ReasonerSotaTestLang",
rules: {
Program: ($: any) => repeat($.ModelDef),
ModelDef: ($: any) =>
seq(
semanticToken("keyword", "model"),
field("name", $.Identifier),
repeat($.Decl),
semanticToken("keyword", "end"),
";",
),
Decl: ($: any) => seq("Real", field("name", $.Identifier), ";"),
Identifier: ($: any) => semanticToken("variable", /[a-zA-Z_][a-zA-Z0-9_]*/),
},
symbols: {
ModelDef: { name: "name", kind: "model", scope: true },
Decl: { name: "name", kind: "Variable", scope: false },
},
extras: ($: any) => [/\s+/],
});
describe("SOTA Reasoning Enhancements Suite", () => {
const tmpDir = path.join(__dirname, "scratch_build_reasoner_sota");
let facade: any;
beforeAll(async () => {
if (fs.existsSync(tmpDir)) {
fs.rmSync(tmpDir, { recursive: true, force: true });
}
fs.mkdirSync(tmpDir, { recursive: true });
const result = buildParser(testDsl as any);
for (const file of result.assemblyScriptFiles) {
const destPath = path.join(tmpDir, file.filename);
fs.mkdirSync(path.dirname(destPath), { recursive: true });
fs.writeFileSync(destPath, file.content);
}
const ascPath = path.resolve(__dirname, "../../../node_modules/.bin/asc");
const parserTs = path.join(tmpDir, "parser.ts");
const outWasm = path.join(tmpDir, "parser.wasm");
const [ascBin, ...ascPrefixArgs] = ascPath.startsWith("npx") ? ["npx", "asc"] : [ascPath];
try {
childProcess.execFileSync(
ascBin,
[
...ascPrefixArgs,
parserTs,
"-o",
outWasm,
"--exportRuntime",
"--enable",
"threads",
"--enable",
"simd",
"--debug",
"--runtime",
"stub",
],
{ stdio: "pipe" },
);
} catch (e: any) {
console.error("ASC STDOUT:", e.stdout?.toString());
console.error("ASC STDERR:", e.stderr?.toString());
throw e;
}
const wasm = fs.readFileSync(outWasm);
const wasmModule = await WebAssembly.compile(wasm);
const memory = new WebAssembly.Memory({ initial: 512, maximum: 1024, shared: true });
const imports = {
env: {
memory,
abort: (msg: any, file: any, line: any, col: any) => {
console.error(`WASM ABORT: line ${line}, col ${col}`);
},
},
JavaScript: { debugLog: () => {}, logNode: () => {} },
engine: { debugLog: () => {} },
parser: { logInt: () => {} },
recovery: {},
host: { runHostQuery: () => {} },
};
const instance = await WebAssembly.instantiate(wasmModule, imports);
if (instance.exports.initCompiler) {
instance.exports.initCompiler();
}
const wrapperSrc =
result.javascriptWrapper.js.replace(/export default /g, "").replace(/export /g, "") + "\nreturn { LspFacade };";
const { LspFacade } = new Function(wrapperSrc)();
facade = new LspFacade(instance.exports.memory, instance.exports);
}, 60000);
afterAll(() => {
if (fs.existsSync(tmpDir)) fs.rmSync(tmpDir, { recursive: true, force: true });
});
describe("P1: O(1) Interval & Topological DAG Indexing", () => {
test("should compute interval labels and evaluate instant subsumption in WASM", () => {
facade.clearOntology();
const AXIOM_SUBCLASS_OF = 2;
const LANG_MODELICA = 1;
facade.addOntologyAxiom(AXIOM_SUBCLASS_OF, LANG_MODELICA, "InductionMotor", "", "Motor");
facade.addOntologyAxiom(AXIOM_SUBCLASS_OF, LANG_MODELICA, "Motor", "", "ElectricalDevice");
facade.addOntologyAxiom(AXIOM_SUBCLASS_OF, LANG_MODELICA, "ElectricalDevice", "", "Device");
// Check before interval indexing (BFS fallback path)
expect(facade.isSubClassOf("InductionMotor", "Motor")).toBe(true);
expect(facade.isSubClassOf("InductionMotor", "Device")).toBe(true);
expect(facade.isSubClassOf("Device", "InductionMotor")).toBe(false);
// Compute intervals
facade.computeOntologyIntervalIndex();
// Check subsumption (O(1) interval dominance path)
expect(facade.isSubClassOf("InductionMotor", "Device")).toBe(true);
expect(facade.isSubClassOf("InductionMotor", "Motor")).toBe(true);
expect(facade.isSubClassOf("Device", "InductionMotor")).toBe(false);
});
});
describe("P2: SPARQL 1.1 Property Path Expressions (+, *, ^, /, |)", () => {
test("parsePropertyPathExpression should parse all path operators", () => {
expect(parsePropertyPathExpression("connectedTo+")).toEqual({ iri: "connectedTo", pathOp: "plus" });
expect(parsePropertyPathExpression("hasPart*")).toEqual({ iri: "hasPart", pathOp: "star" });
expect(parsePropertyPathExpression("^hasPart")).toEqual({ iri: "hasPart", pathOp: "inverse" });
expect(parsePropertyPathExpression("^connectedTo+")).toEqual({ iri: "connectedTo", pathOp: "inverse-plus" });
expect(parsePropertyPathExpression("hasSubsystem / hasComponent")).toEqual({
iri: "hasSubsystem",
pathOp: "sequence",
stepPropertyIri2: "hasComponent",
});
expect(parsePropertyPathExpression("fluidPort | electricalPort")).toEqual({
iri: "fluidPort",
pathOp: "alternation",
stepPropertyIri2: "electricalPort",
});
});
test("should evaluate property paths in WASM linear memory", () => {
facade.clearOntology();
const AXIOM_OBJ_PROP_ASSERT = 7;
const LANG_MODELICA = 1;
// Topology: Pump -> Valve -> Tank -> Drain
facade.addOntologyAxiom(AXIOM_OBJ_PROP_ASSERT, LANG_MODELICA, "Pump", "connectedTo", "Valve");
facade.addOntologyAxiom(AXIOM_OBJ_PROP_ASSERT, LANG_MODELICA, "Valve", "connectedTo", "Tank");
facade.addOntologyAxiom(AXIOM_OBJ_PROP_ASSERT, LANG_MODELICA, "Tank", "connectedTo", "Drain");
const valveHash = facade.hashString("Valve");
const tankHash = facade.hashString("Tank");
const drainHash = facade.hashString("Drain");
const pumpHash = facade.hashString("Pump");
// 1. Transitive (+): 1+ hops
const plusResults = facade.evaluateOntologyPropertyPath("connectedTo", 2 /* PLUS */, "", "Pump");
expect(plusResults).toContain(valveHash);
expect(plusResults).toContain(tankHash);
expect(plusResults).toContain(drainHash);
// 2. Reflexive Transitive (*): 0+ hops (includes source)
const starResults = facade.evaluateOntologyPropertyPath("connectedTo", 3 /* STAR */, "", "Pump");
expect(starResults).toContain(pumpHash);
expect(starResults).toContain(valveHash);
// 3. Inverse (^): 1 hop backward from Valve -> Pump
const invResults = facade.evaluateOntologyPropertyPath("connectedTo", 4 /* INVERSE */, "", "Valve");
expect(invResults).toContain(pumpHash);
// 4. Inverse Transitive (^+): backward from Drain -> Tank, Valve, Pump
const invPlusResults = facade.evaluateOntologyPropertyPath("connectedTo", 5 /* INVERSE_PLUS */, "", "Drain");
expect(invPlusResults).toContain(tankHash);
expect(invPlusResults).toContain(valveHash);
expect(invPlusResults).toContain(pumpHash);
});
test("TableauReasoner should evaluate property path queries via DSL", () => {
const reasoner = new TableauReasoner();
reasoner.loadOntology([
{
type: "ObjectPropertyAssertion",
propertyIri: "mo:hasSubsystem",
subjectIri: "mo:Vehicle",
objectIri: "mo:Chassis",
},
{
type: "ObjectPropertyAssertion",
propertyIri: "mo:hasComponent",
subjectIri: "mo:Chassis",
objectIri: "mo:Wheel",
},
]);
const q = parseDLQuery("path(mo:hasSubsystem / mo:hasComponent, mo:Vehicle)");
expect(q?.type).toBe("path");
expect(q?.pathOp).toBe("sequence");
expect(q).toBeDefined();
if (q) {
const res = executeDLQuery(reasoner, q);
expect(res.bindings).toContain("mo:Wheel");
}
});
});
describe("P3: QuickXplain Minimal Unsatisfiable Subsets (MUS)", () => {
test("should isolate minimal conflict core from contradictory ontology with irrelevant noise", () => {
const reasoner = new TableauReasoner();
reasoner.loadOntology([
// Irrelevant background axioms (noise)
{ type: "ClassDeclaration", iri: "mo:Resistor" },
{ type: "ClassDeclaration", iri: "mo:Capacitor" },
{ type: "SubClassOf", subClassIri: "mo:Resistor", superClassIri: "mo:ElectricalDevice" },
{ type: "ClassAssertion", individualIri: "mo:r1", classIri: "mo:Resistor" },
// Conflict Core: Sensor and Actuator are disjoint, but s1 is asserted as both
{ type: "ClassDeclaration", iri: "mo:Sensor" },
{ type: "ClassDeclaration", iri: "mo:Actuator" },
{ type: "DisjointClasses", classIris: ["mo:Sensor", "mo:Actuator"] },
{ type: "ClassAssertion", individualIri: "mo:s1", classIri: "mo:Sensor" },
{ type: "ClassAssertion", individualIri: "mo:s1", classIri: "mo:Actuator" },
]);
const consistency = reasoner.checkConsistency();
expect(consistency.isConsistent).toBe(false);
expect(consistency.minimalConflictCore).toBeDefined();
const core = consistency.minimalConflictCore || [];
expect(core.length).toBeLessThanOrEqual(5);
// Verify that noise axioms are NOT in the minimal conflict core
const coreJson = JSON.stringify(core);
expect(coreJson).not.toContain("mo:Resistor");
expect(coreJson).not.toContain("mo:Capacitor");
});
});
describe("P4: EL++ Consequence-Based Reasoning & Role Chains", () => {
test("should saturate existential restrictions (CR2) and role chains (CR3) in WASM", () => {
facade.clearOntology();
const AXIOM_OBJECT_SOME_VALUES_FROM = 12;
const AXIOM_SUB_PROPERTY_CHAIN = 13;
const AXIOM_SUBCLASS_OF = 2;
const LANG_MODELICA = 1;
// 1. CR2: Motor ⊑ ∃hasPart.Rotor, Rotor ⊑ HighSpeedRotor, ∃hasPart.HighSpeedRotor ⊑ RotatingMachine
// ⇒ Motor ⊑ RotatingMachine
facade.addOntologyAxiom(AXIOM_OBJECT_SOME_VALUES_FROM, LANG_MODELICA, "Motor", "hasPart", "Rotor");
facade.addOntologyAxiom(AXIOM_SUBCLASS_OF, LANG_MODELICA, "Rotor", "", "HighSpeedRotor");
facade.addOntologyAxiom(
AXIOM_OBJECT_SOME_VALUES_FROM,
LANG_MODELICA,
"RotatingMachine",
"hasPart",
"HighSpeedRotor",
);
// 2. CR3: hasSubsystem ∘ hasComponent ⊑ containsComponent
// Vehicle ⊑ ∃hasSubsystem.Chassis, Chassis ⊑ ∃hasComponent.Wheel
// ⇒ Vehicle ⊑ ∃containsComponent.Wheel
facade.addOntologyAxiom(
AXIOM_SUB_PROPERTY_CHAIN,
LANG_MODELICA,
"hasSubsystem",
"hasComponent",
"containsComponent",
);
facade.addOntologyAxiom(AXIOM_OBJECT_SOME_VALUES_FROM, LANG_MODELICA, "Vehicle", "hasSubsystem", "Chassis");
facade.addOntologyAxiom(AXIOM_OBJECT_SOME_VALUES_FROM, LANG_MODELICA, "Chassis", "hasComponent", "Wheel");
// Run EL++ saturation
const newInferences = facade.saturateOntologyELRules();
expect(newInferences).toBeGreaterThanOrEqual(1);
// Verify inferred subsumption
expect(facade.isSubClassOf("Motor", "RotatingMachine")).toBe(true);
});
});
describe("P5: Leapfrog Triejoin (WCOJ) for Multi-Pattern SPARQL Queries", () => {
test("should execute conjunctive BGP query joining multiple variables without Cartesian products", () => {
const reasoner = new TableauReasoner();
reasoner.loadOntology([
{
type: "ObjectPropertyAssertion",
propertyIri: "mo:connectedTo",
subjectIri: "mo:Motor1",
objectIri: "mo:PortA",
},
{
type: "ObjectPropertyAssertion",
propertyIri: "mo:connectedTo",
subjectIri: "mo:Pump1",
objectIri: "mo:PortB",
},
{
type: "ObjectPropertyAssertion",
propertyIri: "mo:hasDomain",
subjectIri: "mo:PortA",
objectIri: "mo:Electrical",
},
{
type: "ObjectPropertyAssertion",
propertyIri: "mo:hasDomain",
subjectIri: "mo:PortB",
objectIri: "mo:Hydraulic",
},
]);
// Query: Find devices connected to ports that have Electrical domain:
// ?dev mo:connectedTo ?port . ?port mo:hasDomain mo:Electrical
const bgpQuery = {
patterns: [
{ subject: "?dev", predicate: "mo:connectedTo", object: "?port" },
{ subject: "?port", predicate: "mo:hasDomain", object: "mo:Electrical" },
],
};
const result = executeBgpQuery(reasoner, bgpQuery);
expect(result.bindings.length).toBe(1);
expect(result.bindings[0]["?dev"]).toBe("mo:Motor1");
expect(result.bindings[0]["?port"]).toBe("mo:PortA");
const formatted = formatBgpQueryResult(result);
expect(formatted).toContain("mo:Motor1");
expect(formatted).toContain("mo:PortA");
});
});
});
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