test(cypress-github-backend): optionally record tests and run using recorded data (#2776)

cypress/utils/config.js

@@ -0,0 +1,27 @@
+const fs = require('fs-extra');
+const path = require('path');
+const yaml = require('js-yaml');
+
+const devTestDirectory = path.join(__dirname, '..', '..', 'dev-test');
+const backendsDirectory = path.join(devTestDirectory, 'backends');
+
+async function copyBackendFiles(backend) {
+  await Promise.all(
+    ['config.yml', 'index.html'].map(file => {
+      return fs.copyFile(
+        path.join(backendsDirectory, backend, file),
+        path.join(devTestDirectory, file),
+      );
+    }),
+  );
+}
+
+async function updateConfig(configModifier) {
+  const configFile = path.join(devTestDirectory, 'config.yml');
+  const configContent = await fs.readFile(configFile);
+  const config = yaml.safeLoad(configContent);
+  await configModifier(config);
+  await fs.writeFileSync(configFile, yaml.safeDump(config));
+}
+
+module.exports = { copyBackendFiles, updateConfig };