Files
pumpingStation/test/basic/specificClass.test.js
Rene De Ren 6b46a8a8f0 Predicted-volume overflow clamp + spill tracking
Predicted volume is now clamped to [dryRunSafetyVol, maxVolAtOverflow]
in _updatePredictedVolume — the integrator can no longer drift above
the weir crest (only a real measurement can show level > overflow,
e.g. inflow exceeding pump+weir capacity). Excess is recorded as:

  - overflowVolume.predicted.atequipment.default — cumulative spill (m3)
  - flow.predicted.out.overflow — instantaneous spill rate (m3/s),
    registered as a synthetic outflow so net-flow balance reads ~0
    while pinned. The integrator subtracts the prior tick's synthetic
    flow before integrating so it never feeds back into volume math.

Lower clamp at dryRunSafetyVol fires only on the transition — a low
seed/calibration is left alone; inflow is what brings it back up.

_selectBestNetFlow holds the last non-zero level-rate net flow when
level pins at overflowLevel and dL/dt collapses to 0, so dashboards
keep showing roughly what's coming in. Auto-refreshes once level
drops.

getOutput() exposes predictedOverflowVolume + predictedOverflowRate
as top-level convenience keys; the underlying measurements flow to
InfluxDB via the standard MeasurementContainer flatten path.

9 new test assertions cover the upper-clamp + spill increment, stable
spill across ticks, net-flow ~0 while pinned, spill clearing when
inflow stops, low-seed left alone, drain-across-threshold clamp, and
the new top-level output keys.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-06 14:47:46 +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,
inletPipeDiameter: 0.4,
outletPipeDiameter: 0.3,
},
hydraulics: {
refHeight: 'NAP',
basinBottomRef: 0,
minHeightBasedOn: 'outlet',
},
control: {
mode: 'levelbased',
allowedModes: new Set(['levelbased', 'manual']),
levelbased: { minLevel: 1, startLevel: 2, maxLevel: 4, curveType: 'linear', logCurveFactor: 9 },
},
safety: {
enableDryRunProtection: false,
enableOverfillProtection: false,
dryRunThresholdPercent: 2,
highVolumeSafetyThresholdPercent: 98,
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);
});
await t.test('pipe diameters are part of basin contract', () => {
assert.equal(ps.basin.inletPipeDiameter, 0.4);
assert.equal(ps.basin.outletPipeDiameter, 0.3);
});
});
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('startLevel > inflowLevel flagged for levelbased rising hold zone', () => {
const ps = new PumpingStation(makeConfig({
control: {
mode: 'levelbased',
allowedModes: new Set(['levelbased']),
levelbased: { minLevel: 1, startLevel: 3.5, maxLevel: 4, curveType: 'linear' },
},
}));
assert.ok(ps.thresholdIssues.some((i) => i.aName === 'startLevel' && i.bName === 'inflowLevel'));
});
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 < active ramp start → commands 0% without shutdown', async () => {
const ps = new PumpingStation(makeConfig());
ps.percControl = 42; // simulated previous demand
const demands = [];
ps.machineGroups['mgc1'] = {
config: { general: { name: 'mgc1' } },
turnOffAllMachines: () => {},
handleInput: async (_src, d) => { demands.push(d); },
};
ps.calibratePredictedLevel(1.5); // between minLevel=1 and startLevel=2
await ps._controlLevelBased();
assert.equal(ps.percControl, 0);
assert.equal(demands[0], 0);
});
await t.test('filling: level between startLevel and inflowLevel commands 0%', 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(2.5); // startLevel=2, inflowLevel=3
await ps._controlLevelBased('filling');
assert.equal(ps.percControl, 0);
assert.equal(demands[0], 0);
});
await t.test('filling: level ≥ inflowLevel → 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(3.5); // midpoint of inflowLevel=3 and maxLevel=4
await ps._controlLevelBased('filling');
// lerp(3.5, [3,4], [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('shift disabled (default): foot stays at inflowLevel even after fall', async () => {
const ps = new PumpingStation(makeConfig());
ps.machineGroups['mgc1'] = {
config: { general: { name: 'mgc1' } },
turnOffAllMachines: () => {},
handleInput: async () => {},
};
// Climb past inflowLevel and beyond, then fall to a level inside [start..inflow].
ps.calibratePredictedLevel(3.8);
await ps._controlLevelBased();
assert.ok(ps.percControl > 0);
ps.calibratePredictedLevel(2.5); // between startLevel=2 and inflowLevel=3
await ps._controlLevelBased();
// Without shift the foot is inflowLevel → 0% in the hold zone.
assert.equal(ps.percControl, 0);
});
await t.test('shift enabled: arming on % threshold + hold-then-ramp on draining', async () => {
// Geometry: inflow=3, max=4 → up curve goes 0%@3 to 100%@4.
// shiftArmPercent=80 ⇒ arms when up curve ≥ 80 % i.e. level ≥ 3.8.
// shiftLevel=3.5 ⇒ held output starts ramping down at this level.
const ps = new PumpingStation(makeConfig({
control: {
mode: 'levelbased',
allowedModes: new Set(['levelbased']),
levelbased: {
minLevel: 1, startLevel: 2, maxLevel: 4, curveType: 'linear', logCurveFactor: 9,
enableShiftedRamp: true, shiftLevel: 3.5, shiftArmPercent: 80,
},
},
}));
ps.machineGroups['mgc1'] = {
config: { general: { name: 'mgc1' } },
turnOffAllMachines: () => {},
handleInput: async () => {},
};
// Filling at level=3.5 ⇒ up curve = 50 %, below arm threshold ⇒ not armed.
ps.calibratePredictedLevel(3.5);
await ps._controlLevelBased('filling');
assert.equal(ps._shiftArmed, false);
assert.ok(Math.abs(ps.percControl - 50) < 1e-9);
// Filling at level=3.85 ⇒ up curve = 85 % ≥ arm threshold ⇒ ARM.
ps.calibratePredictedLevel(3.85);
await ps._controlLevelBased('filling');
assert.equal(ps._shiftArmed, true);
assert.ok(Math.abs(ps.percControl - 85) < 1e-9); // still up curve while filling
// Direction flips to draining at the same level ⇒ capture hold ≈ 85 %.
await ps._controlLevelBased('draining');
assert.ok(Math.abs(ps._shiftHoldValue - 85) < 1e-6);
// While draining and level ≥ shiftLevel ⇒ output stays at hold (≈85 %).
ps.calibratePredictedLevel(3.6);
await ps._controlLevelBased('draining');
assert.ok(Math.abs(ps.percControl - 85) < 1e-6);
// Below shiftLevel: ramp [shift, hold] → [start, 0]. At level=2.75
// (midpoint of [2, 3.5]), x=0.5, output ≈ 85 × 0.5 = 42.5 %.
ps.calibratePredictedLevel(2.75);
await ps._controlLevelBased('draining');
assert.ok(Math.abs(ps.percControl - 42.5) < 1e-6);
// Below startLevel ⇒ output 0 % AND disarm.
ps.calibratePredictedLevel(1.9);
await ps._controlLevelBased('draining');
assert.equal(ps.percControl, 0);
assert.equal(ps._shiftArmed, false);
assert.equal(ps._shiftHoldValue, null);
});
await t.test('shift enabled: returning to filling clears hold; new hold captured on next drain', async () => {
const ps = new PumpingStation(makeConfig({
control: {
mode: 'levelbased',
allowedModes: new Set(['levelbased']),
levelbased: {
minLevel: 1, startLevel: 2, maxLevel: 4, curveType: 'linear', logCurveFactor: 9,
enableShiftedRamp: true, shiftLevel: 3.5, shiftArmPercent: 80,
},
},
}));
ps.machineGroups['mgc1'] = {
config: { general: { name: 'mgc1' } },
turnOffAllMachines: () => {},
handleInput: async () => {},
};
ps.calibratePredictedLevel(3.85);
await ps._controlLevelBased('filling');
await ps._controlLevelBased('draining');
assert.ok(Math.abs(ps._shiftHoldValue - 85) < 1e-6);
// Direction back to filling ⇒ up curve, hold cleared, still armed.
ps.calibratePredictedLevel(3.9);
await ps._controlLevelBased('filling');
assert.equal(ps._shiftHoldValue, null);
assert.equal(ps._shiftArmed, true);
assert.ok(Math.abs(ps.percControl - 90) < 1e-6); // up curve at 3.9 = 90 %
// Flip to draining again at higher level ⇒ new hold ≈ 90 %.
await ps._controlLevelBased('draining');
assert.ok(Math.abs(ps._shiftHoldValue - 90) < 1e-6);
});
await t.test('log curve has fast early response', async () => {
const ps = new PumpingStation(makeConfig({
control: {
mode: 'levelbased',
allowedModes: new Set(['levelbased']),
levelbased: { minLevel: 1, startLevel: 2, maxLevel: 4, curveType: 'log', logCurveFactor: 9 },
},
}));
ps.machineGroups['mgc1'] = {
config: { general: { name: 'mgc1' } },
turnOffAllMachines: () => {},
handleInput: async () => {},
};
ps.calibratePredictedLevel(3.5); // x=0.5 on filling ramp [3,4]
await ps._controlLevelBased('filling');
assert.ok(ps.percControl > 50);
assert.ok(ps.percControl < 100);
});
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);
assert.equal(out.inletPipeDiameter, 0.4);
assert.equal(out.outletPipeDiameter, 0.3);
assert.ok(Math.abs(out.highVolumeSafetyLevel - 4.41) < 1e-9);
assert.ok(Math.abs(out.dryRunLevel - 0.204) < 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);
});
// _updatePredictedVolume now clamps [dryRunSafetyVol, maxVolAtOverflow] and
// tracks any excess as cumulative `overflowVolume` plus a synthetic
// `flow.predicted.out.overflow` rate so net-flow balance stays at ~0 while
// pinned. We drive ticks manually with monotonic timestamps to keep tests
// deterministic (Date.now() in the integrator can step by 0 ms in fast loops).
test('Predicted volume — overflow clamp and spill tracking', async (t) => {
const ps = new PumpingStation(makeConfig({
safety: { enableDryRunProtection: false, enableHighVolumeSafety: false, dryRunThresholdPercent: 0 },
}));
// Seed predicted volume just below the spill point.
// maxVolAtOverflow = overflowLevel × area = 4.5 × 10 = 45 m³.
const t0 = 1_700_000_000_000;
ps.calibratePredictedVolume(44, t0);
// Heavy inflow, no real outflow (no pumps wired).
ps.setManualInflow(2, t0, 'm3/s'); // 2 m³/s, dt=1s → 2 m³/tick
await t.test('first overflow tick clamps volume and records spill increment', () => {
ps._predictedFlowState = { inflow: 2, outflow: 0, lastTimestamp: t0 };
Date.now = () => t0 + 1000;
ps._updatePredictedVolume();
const vol = ps.measurements.type('volume').variant('predicted').position('atequipment').getCurrentValue('m3');
assert.equal(vol, 45); // pinned at overflow
const cumulative = ps.measurements.type('overflowVolume').variant('predicted').position('atequipment').getCurrentValue('m3');
assert.equal(cumulative, 1); // proposed=44+2=46, excess=1 m³ this tick
const spill = ps.measurements.type('flow').variant('predicted').position('out').child('overflow').getCurrentValue('m3/s');
assert.equal(spill, 2); // instantaneous balance: inflow outflowReal
});
await t.test('subsequent ticks accumulate full inflow as spill (stable)', () => {
Date.now = () => t0 + 2000;
ps._updatePredictedVolume();
const vol = ps.measurements.type('volume').variant('predicted').position('atequipment').getCurrentValue('m3');
assert.equal(vol, 45);
const cumulative = ps.measurements.type('overflowVolume').variant('predicted').position('atequipment').getCurrentValue('m3');
assert.equal(cumulative, 3); // 1 + 2
const spill = ps.measurements.type('flow').variant('predicted').position('out').child('overflow').getCurrentValue('m3/s');
assert.equal(spill, 2);
});
await t.test('predicted net flow reads ~0 while pinned at overflow', () => {
const net = ps._selectBestNetFlow();
// inflow=2, outflow_total=2 (synthetic spill), net = 0
assert.ok(Math.abs(net.value) < 1e-9);
assert.equal(net.source, 'predicted');
});
await t.test('once inflow stops, spill flow clears and clamp releases', () => {
ps.setManualInflow(0, t0 + 2000, 'm3/s');
ps._predictedFlowState = { inflow: 0, outflow: 0, lastTimestamp: t0 + 2000 };
Date.now = () => t0 + 3000;
ps._updatePredictedVolume();
const spill = ps.measurements.type('flow').variant('predicted').position('out').child('overflow').getCurrentValue('m3/s');
assert.equal(spill, 0);
// Volume stays at 45 (no draining force) but is no longer "pinned".
const vol = ps.measurements.type('volume').variant('predicted').position('atequipment').getCurrentValue('m3');
assert.equal(vol, 45);
});
});
test('Predicted volume — dry-run lower clamp', async (t) => {
const ps = new PumpingStation(makeConfig({
// dryRunSafetyVol = minVolAtOutflow × (1 + 5/100) = 2 × 1.05 = 2.1 m³
safety: { enableDryRunProtection: true, dryRunThresholdPercent: 5 },
}));
const t0 = 1_700_000_000_000;
await t.test('initial seed below dryRunSafetyVol is left alone (no upward bump)', () => {
// Seed defaults to minVol=2 (below dryRunSafetyVol=2.1).
ps._predictedFlowState = { inflow: 0, outflow: 0, lastTimestamp: t0 };
Date.now = () => t0 + 1000;
ps._updatePredictedVolume();
const vol = ps.measurements.type('volume').variant('predicted').position('atequipment').getCurrentValue('m3');
assert.equal(vol, 2); // unchanged — clamp doesn't fire because we started below it
});
await t.test('drain across dryRunSafetyVol clamps at the threshold', () => {
// Calibrate well above, then push outflow that would cross the threshold.
ps.calibratePredictedVolume(3, t0 + 1000);
// outflow=2 m³/s for 1s → would drop to 1; clamp catches at 2.1.
ps.setManualOutflow(2, t0 + 1000, 'm3/s');
ps._predictedFlowState = { inflow: 0, outflow: 2, lastTimestamp: t0 + 1000 };
Date.now = () => t0 + 2000;
ps._updatePredictedVolume();
const vol = ps.measurements.type('volume').variant('predicted').position('atequipment').getCurrentValue('m3');
assert.ok(Math.abs(vol - 2.1) < 1e-9);
});
});
test('getOutput — exposes predictedOverflowVolume / predictedOverflowRate', () => {
const ps = new PumpingStation(makeConfig());
// Seed an overflow scenario.
const t0 = 1_700_000_000_000;
ps.calibratePredictedVolume(44, t0);
ps.setManualInflow(2, t0, 'm3/s');
ps._predictedFlowState = { inflow: 2, outflow: 0, lastTimestamp: t0 };
Date.now = () => t0 + 1000;
ps._updatePredictedVolume();
const out = ps.getOutput();
assert.equal(out.predictedOverflowVolume, 1);
assert.equal(out.predictedOverflowRate, 2);
});