Adds esprima-based preprocessor.

external/builder/test2.js

@@ -0,0 +1,54 @@
+/* jshint node:true */
+/* globals cat, cd, echo, ls */
+'use strict';
+
+require('shelljs/make');
+
+var p2 = require('./preprocessor2.js');
+var fs = require('fs');
+
+var errors = 0;
+
+cd(__dirname);
+cd('fixtures_esprima');
+ls('*-expected.*').forEach(function(expectationFilename) {
+  var inFilename = expectationFilename.replace('-expected', '');
+  var expectation = cat(expectationFilename).trim()
+    .replace(/__filename/g, fs.realpathSync(inFilename));
+  var input = fs.readFileSync(inFilename).toString();
+
+  var defines = {
+    TRUE: true,
+    FALSE: false,
+    OBJ: {obj: {i: 1}, j: 2},
+    TEXT: 'text'
+  };
+  var ctx = {
+    defines: defines,
+    rootPath: __dirname + '/../..',
+    saveComments: true
+  };
+  var out;
+  try {
+    out = p2.preprocessPDFJSCode(ctx, input);
+  } catch (e) {
+    out = ('Error: ' + e.message).replace(/^/gm, '//');
+  }
+  if (out !== expectation) {
+    echo('Assertion failed for ' + inFilename);
+    echo('--------------------------------------------------');
+    echo('EXPECTED:');
+    echo(expectation);
+    echo('--------------------------------------------------');
+    echo('ACTUAL');
+    echo(out);
+    echo('--------------------------------------------------');
+    echo();
+  }
+});
+
+if (errors) {
+  echo('Found ' + errors + ' expectation failures.');
+} else {
+  echo('All tests completed without errors.');
+}