fixed incorrect dataPath in errors for refs, closes #9

lib/compile/rules/definitions.def.js

@@ -93,7 +93,7 @@
 {{## def._error:_rule:
   {
     keyword: '{{=_rule}}',
-    dataPath: {{= it.errorPath }},
+    dataPath: (dataPath || '') + {{= it.errorPath }},
     message: {{# def._errorMessages[_rule] }}
     {{? it.opts.verbose }}, schema: {{# def._errorSchemas[_rule] }}, data: {{=$data}}{{?}}
   }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ajv",
-  "version": "0.4.8",
+  "version": "0.4.9",
   "description": "Another JSON schema Validator",
   "main": "lib/ajv.js",
   "scripts": {

spec/errors.spec.js

@@ -0,0 +1,51 @@
+'use strict';
+
+
+var Ajv = require('../lib/ajv')
+  , should = require('chai').should();
+
+
+describe('Validation errors', function () {
+  var ajv;
+
+  beforeEach(function() {
+    ajv = Ajv();
+  });
+
+  it('error should include dataPath', function() {
+    testSchema({
+      properties: {
+        foo: { type: 'number' }
+      }
+    });
+  });
+
+  it('error should include dataPath in refs', function() {
+    testSchema({
+      definitions: {
+        num: { type: 'number' }
+      },
+      properties: {
+        foo: { $ref: '#/definitions/num' }
+      }
+    });
+  });
+
+
+  function testSchema(schema) {
+    var data = { foo: 1 }
+      , invalidData = { foo: 'bar' };
+
+    var validate = ajv.compile(schema);
+    validate(data) .should.equal(true);
+    should.equal(validate.errors, null);
+
+    validate(invalidData) .should.equal(false);
+    validate.errors.length .should.equal(1);
+
+    var error = validate.errors[0];
+    error.keyword .should.equal('type');
+    error.message .should.be.a('string');
+    error.dataPath .should.equal('.foo');
+  }
+});