Files
pumpingStation/test/basic/specificClass.test.js
znetsixe 016433abe6 Add threshold guardrails, fix calibratePredictedLevel bug, rewrite tests
### Guardrails (specificClass.js)

New _validateThresholdOrdering() runs in the constructor. Checks every
ordered pair of basin + control + derived-safety levels and logs a
warning for each violation; returns the list as this.thresholdIssues
so tests and the eval harness can inspect. Non-fatal — we prefer a
running-but-warned station to a refusal-to-start (availability-first).

Strict invariants (bottom → top):
  0 < outflowLevel < inflowLevel < overflowLevel ≤ basinHeight
  dryRunLevel ≤ minLevel ≤ startLevel < maxLevel ≤ overfillLevel

Uses a list-of-checks pattern rather than a switch — easier to add new
invariants without reflowing cases, and the list itself is readable
documentation.

### Bug fix (specificClass.js)

calibratePredictedLevel was writing the volume value into the LEVEL
slot. Root cause: MeasurementContainer is stateful — its type()/
variant()/position() calls mutate the container's own cursor, so
caching chain references (const levelChain = ...; const volumeChain
= ...) doesn't isolate them. The second cached chain ended up sharing
the state of the last type() call. Rebuilt chains fresh each time,
matching the calibratePredictedVolume pattern that already worked.

### Tests (test/basic/specificClass.test.js)

Ported from Jest to node:test + node:assert — the project's standard
per .claude/rules/testing.md. Deleted the stale test/specificClass.test.js
(tests referenced methods that no longer exist post-rename).

New coverage, 42 passing subtests:
- Basin geometry derivations + minHeightBasedOn
- Level/volume roundtrip
- Threshold guardrails (5 violation cases)
- Direction derivation
- Mode change accept/reject
- Calibration (volume and level paths — catches the bug above)
- Levelbased control zones (STOP / DEAD ZONE / RAMP / saturate)
- getOutput flattening
- setManualInflow

Run with: node --test test/basic/*.test.js

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-22 16:38:41 +02:00

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// Basic unit tests for PumpingStation (domain logic, no Node-RED).
// Run with: node --test test/basic/specificClass.test.js
const test = require('node:test');
const assert = require('node:assert/strict');
const PumpingStation = require('../../src/specificClass');
// Standard config shape. Override any section by passing { section: {...} }.
function makeConfig(overrides = {}) {
const base = {
general: {
name: 'TestStation',
id: 'ps-test',
unit: 'm3/h',
logging: { enabled: false, logLevel: 'error' },
flowThreshold: 1e-4,
},
functionality: {
softwareType: 'pumpingStation',
role: 'stationcontroller',
positionVsParent: 'atEquipment',
},
basin: {
volume: 50,
height: 5,
inflowLevel: 3,
outflowLevel: 0.2,
overflowLevel: 4.5,
},
hydraulics: {
refHeight: 'NAP',
basinBottomRef: 0,
minHeightBasedOn: 'outlet',
},
control: {
mode: 'levelbased',
allowedModes: new Set(['levelbased', 'manual']),
levelbased: { minLevel: 1, startLevel: 2, maxLevel: 4 },
},
safety: {
enableDryRunProtection: false,
enableOverfillProtection: false,
dryRunThresholdPercent: 2,
overfillThresholdPercent: 98,
timeleftToFullOrEmptyThresholdSeconds: 0,
},
};
for (const k of Object.keys(overrides)) {
base[k] = typeof overrides[k] === 'object' && !Array.isArray(overrides[k])
? { ...base[k], ...overrides[k] }
: overrides[k];
}
return base;
}
test('Basin geometry — derived values', async (t) => {
const ps = new PumpingStation(makeConfig());
await t.test('surfaceArea = volume / height', () => {
assert.equal(ps.basin.surfaceArea, 10); // 50 / 5
});
await t.test('maxVol = height × area ≡ volEmptyBasin', () => {
assert.equal(ps.basin.maxVol, 50);
assert.equal(ps.basin.maxVol, ps.basin.volEmptyBasin);
});
await t.test('maxVolAtOverflow = overflowLevel × area', () => {
assert.equal(ps.basin.maxVolAtOverflow, 45); // 4.5 × 10
});
await t.test('minVolAtInflow = inflowLevel × area', () => {
assert.equal(ps.basin.minVolAtInflow, 30); // 3 × 10
});
await t.test('minVolAtOutflow = outflowLevel × area', () => {
assert.ok(Math.abs(ps.basin.minVolAtOutflow - 2) < 1e-9); // 0.2 × 10
});
await t.test('minVol honours minHeightBasedOn=outlet', () => {
assert.ok(Math.abs(ps.basin.minVol - 2) < 1e-9);
});
await t.test('minVol honours minHeightBasedOn=inlet', () => {
const ps2 = new PumpingStation(makeConfig({ hydraulics: { minHeightBasedOn: 'inlet' } }));
assert.equal(ps2.basin.minVol, 30);
});
});
test('Level ↔ volume roundtrip', async (t) => {
const ps = new PumpingStation(makeConfig());
await t.test('_calcVolumeFromLevel multiplies by area', () => {
assert.equal(ps._calcVolumeFromLevel(2), 20);
});
await t.test('_calcVolumeFromLevel clamps negatives to 0', () => {
assert.equal(ps._calcVolumeFromLevel(-3), 0);
});
await t.test('_calcLevelFromVolume divides by area', () => {
assert.equal(ps._calcLevelFromVolume(20), 2);
});
await t.test('_calcLevelFromVolume clamps negatives to 0', () => {
assert.equal(ps._calcLevelFromVolume(-10), 0);
});
await t.test('roundtrip preserves level', () => {
const v = ps._calcVolumeFromLevel(2.7);
assert.ok(Math.abs(ps._calcLevelFromVolume(v) - 2.7) < 1e-10);
});
});
test('Threshold guardrails — _validateThresholdOrdering', async (t) => {
await t.test('valid config returns no issues', () => {
const ps = new PumpingStation(makeConfig());
assert.equal(ps.thresholdIssues.length, 0);
});
await t.test('minLevel > startLevel flagged', () => {
const ps = new PumpingStation(makeConfig({
control: {
mode: 'levelbased',
allowedModes: new Set(['levelbased']),
levelbased: { minLevel: 3, startLevel: 2, maxLevel: 4 },
},
}));
assert.ok(ps.thresholdIssues.some((i) => i.aName === 'minLevel'));
});
await t.test('startLevel == maxLevel flagged (must be strict <)', () => {
const ps = new PumpingStation(makeConfig({
control: {
mode: 'levelbased',
allowedModes: new Set(['levelbased']),
levelbased: { minLevel: 1, startLevel: 4, maxLevel: 4 },
},
}));
assert.ok(ps.thresholdIssues.some((i) => i.aName === 'startLevel'));
});
await t.test('outflowLevel >= inflowLevel flagged', () => {
const ps = new PumpingStation(makeConfig({
basin: { volume: 50, height: 5, inflowLevel: 0.1, outflowLevel: 0.5, overflowLevel: 4.5 },
}));
assert.ok(ps.thresholdIssues.some((i) => i.aName === 'outflowLevel'));
});
await t.test('overflowLevel > basinHeight flagged', () => {
const ps = new PumpingStation(makeConfig({
basin: { volume: 50, height: 5, inflowLevel: 3, outflowLevel: 0.2, overflowLevel: 6 },
}));
assert.ok(ps.thresholdIssues.some((i) => i.aName === 'overflowLevel'));
});
await t.test('dryRunLevel > minLevel flagged (safety band inverted)', () => {
// With minHeightBasedOn=inlet, refLowLevel=inflowLevel=3.
// dryRunLevel = 3 × (1 + 100/100) = 6; minLevel=1 → 6 ≤ 1 fails.
const ps = new PumpingStation(makeConfig({
hydraulics: { minHeightBasedOn: 'inlet' },
safety: { enableDryRunProtection: true, dryRunThresholdPercent: 100 },
}));
assert.ok(ps.thresholdIssues.some((i) => i.aName === 'dryRunLevel'));
});
});
test('Direction derivation — _deriveDirection', async (t) => {
const ps = new PumpingStation(makeConfig());
await t.test('positive flow above dead-band → filling', () => {
assert.equal(ps._deriveDirection(0.01), 'filling');
});
await t.test('negative flow below dead-band → draining', () => {
assert.equal(ps._deriveDirection(-0.01), 'draining');
});
await t.test('flow inside dead-band → steady', () => {
assert.equal(ps._deriveDirection(0), 'steady');
assert.equal(ps._deriveDirection(1e-5), 'steady');
assert.equal(ps._deriveDirection(-1e-5), 'steady');
});
});
test('Mode change — changeMode', async (t) => {
const ps = new PumpingStation(makeConfig());
await t.test('valid mode swap updates this.mode', () => {
ps.changeMode('manual');
assert.equal(ps.mode, 'manual');
});
await t.test('rejected mode leaves this.mode unchanged', () => {
ps.changeMode('manual');
ps.changeMode('notamode');
assert.equal(ps.mode, 'manual');
});
});
test('Calibration — predicted volume and level', async (t) => {
const ps = new PumpingStation(makeConfig());
await t.test('calibratePredictedVolume rewrites volume series', () => {
ps.calibratePredictedVolume(25);
const vol = ps.measurements.type('volume').variant('predicted').position('atequipment').getCurrentValue('m3');
assert.ok(Math.abs(vol - 25) < 1e-9);
});
await t.test('calibratePredictedVolume also writes level (= vol / area)', () => {
ps.calibratePredictedVolume(30);
const lvl = ps.measurements.type('level').variant('predicted').position('atequipment').getCurrentValue('m');
assert.ok(Math.abs(lvl - 3) < 1e-9); // 30 / 10
});
await t.test('calibratePredictedLevel writes level + volume = level × area', () => {
ps.calibratePredictedLevel(2.5);
const lvl = ps.measurements.type('level').variant('predicted').position('atequipment').getCurrentValue('m');
const vol = ps.measurements.type('volume').variant('predicted').position('atequipment').getCurrentValue('m3');
assert.ok(Math.abs(lvl - 2.5) < 1e-9);
assert.ok(Math.abs(vol - 25) < 1e-9); // 2.5 × 10
});
});
test('Levelbased control zones — _controlLevelBased', async (t) => {
await t.test('level < minLevel → percControl=0 and MGC turnOff called', async () => {
const ps = new PumpingStation(makeConfig());
let turnOffCalls = 0;
ps.machineGroups['mgc1'] = {
config: { general: { name: 'mgc1' } },
turnOffAllMachines: () => { turnOffCalls++; },
handleInput: async () => {},
};
ps.calibratePredictedLevel(0.5); // below minLevel=1
await ps._controlLevelBased();
assert.equal(ps.percControl, 0);
assert.equal(turnOffCalls, 1);
});
await t.test('minLevel ≤ level < startLevel → dead zone, percControl unchanged', async () => {
const ps = new PumpingStation(makeConfig());
ps.percControl = 42; // simulated previous demand
ps.machineGroups['mgc1'] = {
config: { general: { name: 'mgc1' } },
turnOffAllMachines: () => {},
handleInput: async () => { throw new Error('should not be called in dead zone'); },
};
ps.calibratePredictedLevel(1.5); // between minLevel=1 and startLevel=2
await ps._controlLevelBased();
assert.equal(ps.percControl, 42); // unchanged
});
await t.test('level ≥ startLevel → percControl linearly scaled to [0,100]', async () => {
const ps = new PumpingStation(makeConfig());
const demands = [];
ps.machineGroups['mgc1'] = {
config: { general: { name: 'mgc1' } },
turnOffAllMachines: () => {},
handleInput: async (_src, d) => { demands.push(d); },
};
ps.calibratePredictedLevel(3); // midpoint of startLevel=2 and maxLevel=4
await ps._controlLevelBased();
// lerp(3, [2,4], [0,100]) = 50
assert.ok(Math.abs(ps.percControl - 50) < 1e-9);
assert.equal(demands.length, 1);
assert.ok(Math.abs(demands[0] - 50) < 1e-9);
});
await t.test('level > maxLevel → percControl ≥ 100 (MGC clamps internally)', async () => {
const ps = new PumpingStation(makeConfig());
ps.machineGroups['mgc1'] = {
config: { general: { name: 'mgc1' } },
turnOffAllMachines: () => {},
handleInput: async () => {},
};
ps.calibratePredictedLevel(4.5); // above maxLevel=4
await ps._controlLevelBased();
assert.ok(ps.percControl >= 100);
});
});
test('getOutput — flattens basin + state + demand', async (t) => {
const ps = new PumpingStation(makeConfig());
ps.percControl = 37;
await t.test('includes basin geometry fields', () => {
const out = ps.getOutput();
assert.equal(out.volEmptyBasin, 50);
assert.equal(out.maxVolAtOverflow, 45);
assert.equal(out.minVolAtInflow, 30);
assert.ok(Math.abs(out.minVolAtOutflow - 2) < 1e-9);
});
await t.test('includes state fields (direction, flowSource, timeleft)', () => {
const out = ps.getOutput();
assert.ok('direction' in out);
assert.ok('flowSource' in out);
assert.ok('timeleft' in out);
});
await t.test('includes percControl', () => {
assert.equal(ps.getOutput().percControl, 37);
});
});
test('Manual inflow — setManualInflow stores predicted inflow', async (t) => {
const ps = new PumpingStation(makeConfig());
ps.setManualInflow(0.05, Date.now(), 'm3/s'); // 0.05 m³/s
const v = ps.measurements.type('flow').variant('predicted').position('in').child('manual-qin').getCurrentValue('m3/s');
assert.ok(Math.abs(v - 0.05) < 1e-9);
});