test: add test for runtimeConfig

Author: kuhe

lib/lib-storage/src/index.spec.ts

@@ -1,9 +1,34 @@
+import fs from "node:fs";
 import { describe, expect, test as it } from "vitest";
 
 import * as Storage from "./index";
+import { runtimeConfig } from "./runtimeConfig";
+import { runtimeConfig as runtimeConfigBrowser } from "./runtimeConfig.browser";
+import { runtimeConfig as runtimeConfigNative } from "./runtimeConfig.native";
 
 describe("Storage Packages", () => {
   it("has Upload", () => {
     expect(Storage.Upload).toBeDefined();
   });
 });
+
+describe("runtimeConfig", () => {
+  it("all environments have the same signature", () => {
+    const configs = [runtimeConfig, runtimeConfigBrowser, runtimeConfigNative];
+
+    for (const config of configs) {
+      expect(typeof config.lstatSync).toBe("function");
+      expect(typeof config.isFileReadStream).toBe("function");
+    }
+
+    const stream = fs.createReadStream(__filename);
+
+    expect(runtimeConfig.isFileReadStream(stream)).toBe(true);
+    expect(runtimeConfigBrowser.isFileReadStream(stream)).toBe(false);
+    expect(runtimeConfigNative.isFileReadStream(stream)).toBe(false);
+
+    expect(runtimeConfig.runtime).toBe("node");
+    expect(runtimeConfigBrowser.runtime).toBe("browser");
+    expect(runtimeConfigNative.runtime).toBe("react-native");
+  });
+});