Initial commit with translated description

test/candidates.test.js

@@ -0,0 +1,28 @@
+const { describe, it } = require('node:test');
+const assert = require('node:assert/strict');
+const { extractCapabilityCandidates, expandSignals } = require('../src/gep/candidates');
+
+describe('expandSignals', () => {
+  it('derives structured learning tags from weak signals', () => {
+    const tags = expandSignals(['perf_bottleneck', 'stable_success_plateau'], '');
+    assert.ok(tags.includes('problem:performance'));
+    assert.ok(tags.includes('problem:stagnation'));
+    assert.ok(tags.includes('action:optimize'));
+  });
+});
+
+describe('extractCapabilityCandidates', () => {
+  it('creates a failure-driven candidate from repeated failed capsules', () => {
+    const result = extractCapabilityCandidates({
+      recentSessionTranscript: '',
+      signals: ['perf_bottleneck'],
+      recentFailedCapsules: [
+        { trigger: ['perf_bottleneck'], failure_reason: 'validation failed because latency stayed high', outcome: { status: 'failed' } },
+        { trigger: ['perf_bottleneck'], failure_reason: 'constraint violation after slow path regression', outcome: { status: 'failed' } },
+      ],
+    });
+    const failureCandidate = result.find(function (c) { return c.source === 'failed_capsules'; });
+    assert.ok(failureCandidate);
+    assert.ok(failureCandidate.tags.includes('problem:performance'));
+  });
+});