hardening and bugfixing prior to stable release

packages/nopy/tests/fixtures/form-probe.ts

@@ -0,0 +1,42 @@
+/**
+ * Runs one real enquirer variable form and prints what it produced.
+ *
+ * Driven by `tests/prompts.pty.test.ts` under a pty of a chosen size. Nothing
+ * here is mocked — the point is the prompt library's own behaviour on a
+ * terminal that reports no size, which cannot be observed from inside a vitest
+ * worker because there is no TTY there to misreport.
+ *
+ * Prints one line, `NOPY_PROBE <json>`, holding the values the form assigned at
+ * the `prompt` origin. An empty object means the form submitted nothing.
+ */
+
+import { Cube, Manifest } from '@bitsquare/nopy-cubes';
+import { z } from 'zod';
+import { Variables } from '../../src/nopy.common.js';
+import { VariableAssignment } from '../../src/nopy.prompts.js';
+
+const KEYS = ['ALPHA', 'BETA'];
+
+const cube = new Cube(
+  Manifest({
+    id: 'probe',
+    name: 'Zero-rows probe',
+    schema: z.object({
+      ALPHA: z.string().describe('First value').default(''),
+      BETA: z.string().describe('Second value').default(''),
+    }),
+  }),
+  '/cubes/probe',
+  'deploy.py'
+);
+
+const variables = new Variables();
+await VariableAssignment(cube, variables);
+
+const assigned: Record<string, unknown> = {};
+for (const key of KEYS) {
+  const variable = variables.of('probe', key);
+  if (variable?.origin === 'prompt') assigned[key] = variable.value;
+}
+
+process.stdout.write(`\nNOPY_PROBE ${JSON.stringify(assigned)}\n`);