38 lines
1.2 KiB
JavaScript
38 lines
1.2 KiB
JavaScript
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import { describe, it, expect } from 'vitest';
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import { Simulation } from 'eecircuit-engine';
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/**
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* Smoke test: bring up ngspice-WASM and run one DC analysis.
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*
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* Netlist is the classic voltage divider: 9V across 1k + 2k.
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* Expected: V(out) = 6.000 V
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*/
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describe('ngspice-WASM — smoke test', () => {
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it('runs a voltage-divider DC op-point', { timeout: 60_000 }, async () => {
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const sim = new Simulation();
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await sim.start();
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const netlist = `Voltage divider
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V1 vcc 0 DC 9
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R1 vcc out 1k
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R2 out 0 2k
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.op
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.end`;
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sim.setNetList(netlist);
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const result = await sim.runSim();
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expect(result).toBeDefined();
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expect(result.variableNames.length).toBeGreaterThan(0);
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console.log('variables:', result.variableNames);
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console.log('numPoints:', result.numPoints);
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console.log('dataType:', result.dataType);
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// Find the voltage on node 'out'
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const outIdx = result.variableNames.findIndex(n => /v\(out\)/i.test(n) || n.toLowerCase() === 'v(out)');
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expect(outIdx).toBeGreaterThanOrEqual(0);
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const outVoltage = result.data[outIdx].values[0];
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console.log('V(out) =', outVoltage);
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expect(outVoltage).toBeCloseTo(6.0, 2);
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});
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});
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