eve/dist/src/evals/expect/index.js

Filesystem-first framework for durable backend AI agents that run anywhere.

import{formatDiagnosticValue,toDiagnosticMetadataValue}from"#evals/diagnostics.js";import{deepEquals,testRegExp}from"#evals/match.js";import{levenshteinSimilarity}from"#evals/expect/levenshtein.js";function makeAssertion(e){let evaluate=t=>{let n=e.evaluate(t);return n instanceof Promise?n.then(normalizeEvaluation):normalizeEvaluation(n)};return{name:e.name,severity:e.severity,threshold:e.threshold,evaluate,score(e){let t=evaluate(e);return t instanceof Promise?t.then(e=>e.score):t.score},gate(t){return makeAssertion({...e,severity:`gate`,threshold:t})},soft(t){return makeAssertion({...e,severity:`soft`,threshold:t})},atLeast(t){return makeAssertion({...e,severity:`soft`,threshold:t})}}}function normalizeEvaluation(e){return typeof e==`number`?{score:e}:e}function includes(e){return makeAssertion({name:`includes(${e})`,severity:`gate`,evaluate:t=>{let n=String(t??``);return(typeof e==`string`?n.includes(e):testRegExp(e,n))?1:{score:0,message:`expected ${formatDiagnosticValue(n)} to include ${formatDiagnosticValue(String(e))}`,metadata:{actual:n,expected:String(e)}}}})}function satisfies(e,t){if(t.trim().length===0)throw Error(`satisfies() requires a non-empty label.`);return makeAssertion({name:`satisfies(${t})`,severity:`gate`,evaluate:n=>e(n)?1:{score:0,message:`predicate did not hold for ${formatDiagnosticValue(n)}`,metadata:{actual:toDiagnosticMetadataValue(n),predicate:t}}})}function equals(e){return makeAssertion({name:`equals`,severity:`gate`,evaluate:t=>deepEquals(t,e)?1:{score:0,message:`expected ${formatDiagnosticValue(e)}; received ${formatDiagnosticValue(t)}`,metadata:{actual:toDiagnosticMetadataValue(t),expected:toDiagnosticMetadataValue(e)}}})}function matches(e){return makeAssertion({name:`matches`,severity:`gate`,evaluate:async t=>{let n=await e[`~standard`].validate(t);return!(`issues`in n)||n.issues===void 0?1:{score:0,message:`schema validation failed: ${n.issues.map(formatSchemaIssue).join(`; `)}`,metadata:{actual:toDiagnosticMetadataValue(t),issues:toDiagnosticMetadataValue(n.issues)}}}})}function similarity(e){return makeAssertion({name:`similarity`,severity:`soft`,evaluate:async t=>{let n=String(t??``);return{score:levenshteinSimilarity(n,e),message:`expected similarity to ${formatDiagnosticValue(e)}; received ${formatDiagnosticValue(n)}`,metadata:{actual:n,expected:e}}}})}function formatSchemaIssue(e){return`${e.path===void 0?``:`${e.path.map(e=>String(typeof e==`object`?e.key:e)).join(`.`)}: `}${e.message}`}export{equals,includes,matches,satisfies,similarity};