more refined tests

Author: bobzhang

jscomp/build_tests/namespace/input.js

@@ -1,10 +1,15 @@
 
 
 var child_process = require('child_process')
-
+var fs = require('fs') 
+var path = require('path')
 child_process.execSync(`bsb -clean-world && bsb -make-world`, {cwd:__dirname, stdio:[0,1,2]})
 
 var x = require('./src/demo.js')
 var assert = require('assert')
 
-assert.equal(x.v, 3 )
+assert.equal(x.v, 3 )
+
+var merlin = fs.readFileSync(path.join(__dirname,'.merlin'), {encoding:'utf8'})
+
+assert.ok(merlin.includes('-open'))