Make tests runnable under node

test/driver.js

@@ -1,13 +1,15 @@
-var tests = [];
+(function(exports) {
+  var tests = [];
+  var acorn = typeof require == "undefined" ? window.acorn : require("../acorn.js");
 
-function test(code, ast, options) {
+  exports.test = function(code, ast, options) {
     tests.push({code: code, ast: ast, options: options});
-}
-function testFail(code, message, options) {
+  };
+  exports.testFail = function(code, message, options) {
     tests.push({code: code, error: message, options: options});
-}
+  };
 
-function runTests(callback) {
+  exports.runTests = function(callback) {
     var opts = {linePositions: true};
     for (var i = 0; i < tests.length; ++i) {
       var test = tests[i];
@@ -30,16 +32,16 @@ function runTests(callback) {
         }
       }
     }
-}
+  };
 
-function ppJSON(v) { return JSON.stringify(v, null, 2); }
-function addPath(str, pt) {
+  function ppJSON(v) { return JSON.stringify(v, null, 2); }
+  function addPath(str, pt) {
     if (str.charAt(str.length-1) == ")")
       return str.slice(0, str.length-1) + "/" + pt + ")";
     return str + " (" + pt + ")";
-}
+  }
 
-function misMatch(exp, act) {
+  function misMatch(exp, act) {
     if (!exp || !act || (typeof exp != "object") || (typeof act != "object")) {
       if (exp !== act) return ppJSON(exp) + " !== " + ppJSON(act);
     } else if (exp.splice) {
@@ -55,4 +57,5 @@ function misMatch(exp, act) {
         if (mis) return addPath(mis, prop);
       }
     }
-}
+  }
+})(typeof exports == "undefined" ? window : exports);

test/run.js

@@ -0,0 +1,14 @@
+var driver = require("./driver.js");
+require("./tests.js");
+
+var testsRun = 0, failed = 0;
+function report(state, code, message) {
+  if (state != "ok") {++failed; console.log(code, message);}
+  ++testsRun;
+}
+
+var t0 = +new Date;
+driver.runTests(report);
+console.log(testsRun + " tests run in " + (+new Date - t0) + "ms");
+if (failed) console.log(failed + " failures.");
+else console.log("All passed.");

test/tests.js

@@ -1,6 +1,11 @@
 // Tests largely based on those of Esprima
 // (http://esprima.org/test/)
 
+if (typeof exports != "undefined") {
+  var test = require("./driver.js").test;
+  var testFail = require("./driver.js").testFail;
+}
+
 test("this\n", {
   type: "Program",
   start: {