new test for invariant

packages/astro-ghostcms/package.json

@@ -37,6 +37,7 @@
     "email": "issues@astro-ghostcms.xyz"
   },
   "main": "index.ts",
+  "types": "types.ts",
   "files": [
     "src",
     ".env.demo",
@@ -48,7 +49,7 @@
   "exports": {
     ".": "./index.ts",
     "./api": "./src/api/index.ts",
-    "./api-core": "./src/api/content-api",
+    "./api-core": "./src/api/content-api/index.ts",
     "./404.astro": "./src/default-routes/404/404.astro",
     "./rss.xml.ts": "./src/default-routes/rss.xml.ts",
     "./config": "./src/integrations/virtual-config.ts",

packages/astro-ghostcms/src/api/invariant.test.ts

@@ -0,0 +1,36 @@
+import { describe, expect, it } from "vitest";
+
+const isProduction= false;
+const prefix: string = 'Invariant failed';
+
+const testTrue = true;
+const testFalse = false;
+
+function invariant(
+  // biome-ignore lint/suspicious/noExplicitAny: we know what we are doing
+condition: any,
+  message?: string | (() => string),
+) {
+  if (condition) {
+    return;
+  }
+  if (isProduction) {
+    throw new Error(prefix);
+  }
+
+  const provided: string | undefined = typeof message === 'function' ? message() : message;
+
+  const value: string = provided ? `${prefix}: ${provided}` : prefix;
+  return value;
+}
+
+describe('test invariant', () => {
+    it('Test `true` value', () => {
+        invariant(testTrue, "This should not error")
+        expect(null)
+    })
+    it('Test `false` value', () => {
+        invariant(testFalse, "This should Error")
+        expect(String("Invariant failed"))
+    })
+})