fix test-all no work in umi

tests/run-tests.js

@@ -22,10 +22,7 @@ console.log('Starting development server for e2e tests...');
 startServer.stdout.on('data', data => {
   // eslint-disable-next-line
   console.log(data.toString());
-  if (
-    data.toString().indexOf('Compiled successfully') >= 0 ||
-    data.toString().indexOf('Compiled with warnings') >= 0
-  ) {
+  if (data.toString().indexOf('App running at') >= 0) {
     // eslint-disable-next-line
     console.log('Development server is started, ready to run tests.');
     const testCmd = spawn(/^win/.test(process.platform) ? 'npm.cmd' : 'npm', ['test'], {