velxio/frontend/src/__tests__/spice-mosfet-diag.test.ts

107 lines
3.4 KiB
TypeScript

/**
* Diagnostic: mimic the exact CircuitScheduler.drain() pipeline to confirm
* that the key `BasicParts.ts` reads for the LED brightness
* (`branchCurrents['v_<id>_sense']`) is actually present after a real solve
* of the mosfet-pwm-led topology with the gate driven by a PWM-equivalent
* DC voltage.
*/
import { describe, it, expect } from 'vitest';
import { buildNetlist } from '../simulation/spice/NetlistBuilder';
import { runNetlist } from './helpers/testSolver';
import type { BuildNetlistInput } from '../simulation/spice/types';
function buildInput(gateDuty: number): BuildNetlistInput {
return {
components: [
{ id: 'rl', metadataId: 'resistor', properties: { value: '220' } },
{ id: 'led1', metadataId: 'led', properties: { color: 'white' } },
{ id: 'q1', metadataId: 'mosfet-2n7000', properties: {} },
{ id: 'rg', metadataId: 'resistor', properties: { value: '100000' } },
],
wires: [
{
id: 'w1',
start: { componentId: 'arduino-uno', pinName: '5V' },
end: { componentId: 'rl', pinName: '1' },
},
{
id: 'w2',
start: { componentId: 'rl', pinName: '2' },
end: { componentId: 'led1', pinName: 'A' },
},
{
id: 'w3',
start: { componentId: 'led1', pinName: 'C' },
end: { componentId: 'q1', pinName: 'D' },
},
{
id: 'w4',
start: { componentId: 'q1', pinName: 'S' },
end: { componentId: 'arduino-uno', pinName: 'GND' },
},
{
id: 'w5',
start: { componentId: 'arduino-uno', pinName: '9' },
end: { componentId: 'q1', pinName: 'G' },
},
{
id: 'w6',
start: { componentId: 'q1', pinName: 'G' },
end: { componentId: 'rg', pinName: '1' },
},
{
id: 'w7',
start: { componentId: 'rg', pinName: '2' },
end: { componentId: 'arduino-uno', pinName: 'GND' },
},
],
boards: [
{
id: 'arduino-uno',
vcc: 5,
pins: {
'5V': { type: 'digital', v: 5 },
GND: { type: 'digital', v: 0 },
'9': { type: 'pwm', duty: gateDuty },
},
groundPinNames: ['GND'],
vccPinNames: ['5V'],
},
],
analysis: { kind: 'op' },
};
}
describe('MOSFET PWM LED — scheduler key diagnostic', () => {
it(
'prints the full variableNames list and shows which keys land in branchCurrents',
{ timeout: 30_000 },
async () => {
const { netlist } = buildNetlist(buildInput(1.0)); // 100% duty = full on
console.log('\n=== NETLIST ===\n' + netlist + '\n==============');
const cooked = await runNetlist(netlist);
console.log('RAW variableNames:', cooked.variableNames);
// Mirror CircuitScheduler.drain() exactly
const branchCurrents: Record<string, number> = {};
for (const name of cooked.variableNames) {
if (name.startsWith('i(')) {
const src = name.slice(2, -1);
const i = cooked.dcValue(name);
if (Number.isFinite(i)) branchCurrents[src] = i;
}
}
console.log('branchCurrents keys (scheduler-filtered):', Object.keys(branchCurrents));
console.log('v_led1_sense:', branchCurrents['v_led1_sense']);
expect(Object.keys(branchCurrents)).toContain('v_led1_sense');
expect(Math.abs(branchCurrents['v_led1_sense'])).toBeGreaterThan(1e-6);
},
);
});