Create basic factory function

Author: screendriver

source/main.test.ts

@@ -0,0 +1,19 @@
+import { test } from 'node:test';
+import assert from 'node:assert';
+import { createFactory } from './main.ts';
+
+type Person = {
+    readonly name: string;
+};
+
+await test('build() returns the given factory object as is', () => {
+    const factory = createFactory<Person>(() => {
+        return {
+            name: 'John Doe'
+        };
+    });
+
+    const actual = factory.build();
+
+    assert.deepStrictEqual(actual, { name: 'John Doe' });
+});

source/main.ts

@@ -1,3 +1,13 @@
-export function main(): string {
-    return '';
+type ObjectoryFactory<ObjectShape> = {
+    readonly build: () => ObjectShape;
+};
+
+type GeneratorFunction<ObjectShape> = () => ObjectShape;
+
+export function createFactory<ObjectShape extends Record<string, unknown>>(
+    generatorFunction: GeneratorFunction<ObjectShape>
+): ObjectoryFactory<ObjectShape> {
+    return {
+        build: generatorFunction
+    };
 }