add test for getBuildOptions

Author: sjjj986

packages/@apphosting/common/src/index.spec.ts

@@ -2,7 +2,50 @@ import assert from "assert";
 import fs from "fs";
 import path from "path";
 import os from "os";
-import { updateOrCreateGitignore } from "./index";
+import { getBuildOptions, updateOrCreateGitignore } from "./index";
+
+const originalCwd = process.cwd;
+
+describe("get a set of default build options", () => {
+  const mockCwd = '/fake/project/';
+  beforeEach(() => {
+    process.cwd = () => mockCwd;
+  })
+
+  afterEach(() => {
+    process.cwd = originalCwd;
+    delete process.env.MONOREPO_COMMAND;
+    delete process.env.MONOREPO_BUILD_ARGS;
+    delete process.env.GOOGLE_BUILDABLE;
+    delete process.env.MONOREPO_PROJECT;
+  });
+
+  it('returns monorepo build options when MONOREPO_COMMAND is set', () => {
+    process.env.MONOREPO_COMMAND = 'turbo';
+    process.env.MONOREPO_BUILD_ARGS = '--filter=web,--env-mode=strict';
+    process.env.GOOGLE_BUILDABLE = '/workspace/apps/web';
+    process.env.MONOREPO_PROJECT = 'web';
+
+    // Assert that the returned options are correct
+    const expectedOptions = {
+      buildCommand: 'turbo',
+      buildArgs: ['run', 'build', '--filter=web', '--env-mode=strict'],
+      projectDirectory: '/workspace/apps/web',
+      projectName: 'web',
+    };
+    assert.deepStrictEqual(getBuildOptions(), expectedOptions, 'Monorepo build options are incorrect');
+  });
+
+  it('returns standard build options when MONOREPO_COMMAND is not set', () => {
+    const expectedOptions = {
+      buildCommand: 'npm',
+      buildArgs: ['run', 'build'],
+      projectDirectory: process.cwd(),
+    };
+    assert.deepStrictEqual(getBuildOptions(), expectedOptions, 'Standard build options are incorrect');
+  });
+});
+
 
 describe("update or create .gitignore", () => {
   let tmpDir: string;