Lemonergy · Studio block

Assertion

Stops the simulation if its Boolean condition is false.

Implementation ID
native-assertion
Reviewed
2026-10-27

Behavior

Pass if condition = true; otherwise return an assertion failure.

Interface

Assertion interfaceInputs or arguments on the left, observed outputs on the right. Conserving terminals appear below the component. The tables give units and behavior.AssertionStudio blockin0out0
Original Lemonergy interface view. Lines identify ports; they are not a completed simulation circuit.
Ports and observed outputs
NameDirectionUnitMeaning
in0input1Condition; bool scalar.
out0output1Passed; bool scalar.

Parameters

No configurable parameters for this component.

Equations and rules

  • Pass if condition = true; otherwise return an assertion failure

Worked example

Assertion — worked example

Condition = 1. Passed at 0 s = 1.

Open Studio example after release →
Numerical checks for the bundled synthetic example
OutputTime (s)Expected valueUnitAbsolute tolerance
Passed
out0
0111e-09

Explore the recorded outputs

Assertion recorded example

Assertion
Assertion against timeRecorded synthetic simulation values. Time in seconds; output in —.0.500.750.2510.51.250.751.51—Time (s)
Assertion: 1 — at 0 s

2 actual recorded samples. Lines are visual guides between samples. Synthetic example, not measured cell data.

Download the recorded samples (JSON) · Open this Studio example after release

Use in a workflow

Assertion — worked example

Stops the simulation if its Boolean condition is false.

  1. Assertion: Pass if condition = true; otherwise return an assertion failure.
    • Use the block reference for settings and connections.
    • Implementation tested locally; public release pending.
Open Studio example after release

Connected concepts

Limits and interpretation

  • A failed assertion is an error. Use Stop simulation for successful conditional completion.

Reference basis

This software operation is defined by its public contract and worked example; no external research result is claimed.

Implementation sources

This reference follows the public interface and locally verified numerical checks for an upcoming release.

Contract: Lemonergy Studio public contract · Verification record: verification-2026-10-27

  • docs/glossary/native-block-verification.json

This implementation and its workflow uses (JSON) · Knowledge graph (JSON-LD)