chore: add helpers for starting & stopping the playground in a testing environment

Author: boazpoolman

playground/tests/helpers.js

@@ -0,0 +1,46 @@
+const { createStrapi, compileStrapi } = require("@strapi/strapi");
+const fs = require("fs");
+
+let instance;
+
+/**
+ * Setups strapi for futher testing
+ */
+async function setupStrapi() {
+  if (!instance) {
+    const app = await createStrapi({
+      appDir: "./playground",
+      distDir: "./playground/dist",
+    }).load();
+
+    instance = app; // strapi is global now
+
+    await instance.server.mount();
+  }
+  return instance;
+}
+
+/**
+ * Closes strapi after testing
+ */
+async function stopStrapi() {
+  if (instance) {
+    await instance.server.httpServer.close();
+    await instance.db.connection.destroy();
+    instance.destroy();
+    const tmpDbFile = strapi.config.get(
+      "database.connection.connection.filename"
+    );
+
+    if (fs.existsSync(tmpDbFile)) {
+      fs.unlinkSync(tmpDbFile);
+    }
+
+  }
+  return instance;
+}
+
+module.exports = {
+  setupStrapi,
+  stopStrapi,
+};