Change self-testing modules to work with contexts

Author: isaacs

lib/utils/fetch.js

@@ -93,7 +93,7 @@ function fetchAndWrite (remote, fd, headers, maxRedirects, redirects, cb) {
     .end()
 }
 
-if (module !== process.mainModule) return
+if (module === require.main) {
 
 log("testing", "fetch")
 var exec = require("./exec")
@@ -123,3 +123,5 @@ urls.forEach(function (url) {
         )
   })
 })
+
+}

lib/utils/proto-list.js

@@ -57,7 +57,7 @@ ProtoList.prototype =
     }
   }
 
-if (module !== process.mainModule) return
+if (module === require.main) {
 
 var assert = require("assert")
   , sys = require("sys")
@@ -89,3 +89,4 @@ assert.equal(p.get("foo"), undefined)
 
 
 sys.debug("ok")
+}

lib/utils/semver.js

@@ -113,7 +113,7 @@ function gt (v1, v2) {
   return tag2 && (!tag1 || tag1 > tag2)
 }
 
-if (module !== process.mainModule) return  // tests below
+if (module === require.main) {  // tests below
 
 var assert = require("assert")
 
@@ -178,3 +178,4 @@ var assert = require("assert")
   ].forEach(function (v) {
     assert.ok(satisfies(v[1], v[0]), v[0]+" satisfied by "+v[1])
   })
+}