Build a Bonsai IFC Gherkin Acceptance Specification Engine

Formulate automated Gherkin acceptance test scenarios for architectural IFC models using ifcbimtester principles. Validate deliverable models before client handover against contractual BIM specifications.

Design assurance manager

Parse design requirements into Gherkin feature files specifying mandatory IFC properties.

Execute ifcbimtester rules against incoming architectural IFC model structures.

Evaluate rule passes, warnings, and non-conformance failures across building levels.

Compile an interactive BIM quality assurance certificate detailing conformance metrics.

Web verification console showing Gherkin feature files, live run logs, and downloadable compliance certificates.

Use open-source Gherkin sample tests from the IfcOpenShell bimtester repository combined with synthetic IFC object attributes. Starter examples below are synthetic. They are not downloaded records.

IfcOpenShell Implements ifcbimtester, the Gherkin-based unit testing wrapper for IFC models listed in IfcOpenShell documentation.

anthropic-claude, behave, python-ifcopenshell. Claude accurately translates natural language contract clauses into strict Gherkin syntax without hallucinations. Hosted Claude API for natural-language-to-Gherkin scenario synthesis and validation check verification.

Submit runnable source, pinned dependencies, setup commands, a working interface, example outputs, and a recorded end-to-end demo. Include tests and an action log.

Converts textual contract clauses into executable Gherkin Given-When-Then test blocks.

Executes test runs identifying elements violating contractual IFC property rules.

Generates clean machine-readable test failure dossiers.

```json [ { "input": { "contract_rule": "Every external door must have an acoustic rating of at least 30dB and an explicit fire rating.", "test_target_model": [ { "guid": "DOOR-EXT-1", "type": "IfcDoor", "is_external": true, "AcousticRating": 32, "FireRating": "FD30" } ] }, "expected_output": { "gherkin_feature": "Feature: External Door Acoustic and Fire Compliance\n Scenario: Validate acoustic and fire attributes\n Given element IfcDoor is external\n Then AcousticRating must be >= 30\n And FireRating must be defined", "tested_elements": 1, "passed": 1, "failed": 0, "failures": [] } }, { "input": { "contract_rule": "All primary columns on Level 1 must declare structural material strength.", "test_target_model": [ { "guid": "COL-L1-A", "type": "IfcColumn", "level": "L1", "material_grade": null } ] }, "expected_output": { "gherkin_feature": "Feature: Column Material Strength Compliance\n Scenario: Validate column structural material\n Given element IfcColumn on level L1\n Then material_grade must be defined", "tested_elements": 1, "passed": 0, "failed": 1, "failures": [ { "guid": "COL-L1-A", "issue": "Missing material_grade attribute" } ] } } ] ```

Executes virtual validation tests on BIM files without altering construction documentation or signing off legal contracts. Use mock external writes. Require human review before any real deployment.