feat(cli): add test for defaultConfigFile

test/unit/node/cli.test.ts

@@ -6,6 +6,7 @@ import * as path from "path"
 import {
   Args,
   bindAddrFromArgs,
+  defaultConfigFile,
   parse,
   setDefaults,
   shouldOpenInExistingInstance,
@@ -642,3 +643,18 @@ describe("bindAddrFromArgs", () => {
     resetValue()
   })
 })
+
+describe("defaultConfigFile", () => {
+  it("should return the dfeault config file as a string", async () => {
+    const actualDefaultConfigFile = await defaultConfigFile()
+    // Since the password is autogenerated within the function
+    // we can't assert it with .toMatch
+    // but we can check that the config at least includes
+    // these strings.
+    const expectedStrings = [`bind-addr: 127.0.0.1:8080`, `auth: password`, `password`, `cert: false`]
+
+    expectedStrings.forEach((str) => {
+      expect(actualDefaultConfigFile).toContain(str)
+    })
+  })
+})