Run 'next build' during plugin-next test to make it pass correctly

Author: yamalight

packages/graffiti/test/helpers/exec.js

@@ -0,0 +1,24 @@
+const { spawn } = require('child_process');
+
+exports.exec = async ({ workdir, command, args }) => {
+  return new Promise((resolve, reject) => {
+    const proc = spawn(command, args, { cwd: workdir });
+    const log = [];
+    const errorLog = [];
+    proc.stdout.on('data', (data) => {
+      const message = data.toString();
+      log.push(message);
+    });
+    proc.stderr.on('data', (data) => {
+      const message = data.toString();
+      errorLog.push(message);
+    });
+    proc.on('exit', (code) => {
+      if (errorLog.length > 0 || code !== 0) {
+        reject({ code: code.toString(), log, errorLog });
+      } else {
+        resolve({ code: code.toString(), log, errorLog });
+      }
+    });
+  });
+};

packages/graffiti/test/plugin.next.test.js

@@ -2,6 +2,7 @@
 const path = require('path');
 const { build } = require('../lib');
 const { executeGraphql } = require('./helpers/graphql');
+const { exec } = require('./helpers/exec');
 const { CREATE_NOTE_QUERY } = require('./fixtures/queries.basic');
 
 // mock current workdir
@@ -31,6 +32,8 @@ const testNote = { name: 'test note', body: 'test note body' };
 afterAll(() => server?.close());
 
 beforeAll(async () => {
+  // run "next build" in project workdirn
+  await exec({ workdir: testPath, command: 'npx', args: ['next', 'build'] });
   // build new server
   const fastifyServer = await build();
   server = fastifyServer;