Adding first error test, and error testing framework

lib/mess/parser.js

@@ -302,9 +302,6 @@ mess.Parser = function Parser(env) {
                     filename: e.filename,
                     index: e.index,
                     line: typeof(line) === 'number' ? line + 1 : null,
-                    callLine: e.call && (root.getLine(e.call) + 1),
-                    callExtract: lines[root.getLine(e.call)],
-                    stack: e.stack,
                     column: column,
                     extract: [
                         lines[line - 1],

lib/mess/tree/invalid.js

@@ -2,6 +2,7 @@
 tree.Invalid = function Invalid(chunk, index, message) {
     this.chunk = chunk;
     this.index = index;
+    this.type = 'syntax';
     this.message = message || "Invalid code: " + this.chunk;
 };
 })(require('mess/tree'));

lib/mess/tree/rule.js

@@ -14,6 +14,7 @@ tree.Rule.prototype.toXML = function(env) {
         return env.error({
             message: "Unrecognized selector: " + this.name,
             index: this.index,
+            type: 'syntax',
             filename: this.filename
         });
     }
@@ -29,6 +30,7 @@ tree.Rule.prototype.toXML = function(env) {
                 ' is expected. ' + this.value + 
                 ' was given.',
             index: this.index,
+            type: 'syntax',
             filename: this.filename
         });
     }

test/errorhandling/invalid_property.mml

@@ -0,0 +1,15 @@
+{
+    "srs": "+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs",
+    "Stylesheet": [
+        "invalid_property.mss"
+    ],
+    "Layer": [{
+        "id": "world",
+        "name": "world",
+        "srs": "+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs",
+        "Datasource": {
+            "file": "http://tilemill-data.s3.amazonaws.com/test_data/shape_demo.zip",
+            "type": "shape"
+        }
+    }]
+}

test/errorhandling/invalid_property.mss

@@ -0,0 +1,4 @@
+#world[zoom=5] {
+  polygon-fill: #f00;
+  polygonopacity: 0.5;
+}

test/errorhandling/invalid_property.result

@@ -0,0 +1 @@
+[{"message":"Unrecognized selector: polygonopacity","index":41,"type":"syntax","filename":"[absolute path]","line":3,"column":2,"extract":["  polygon-fill: #f00;","  polygonopacity: 0.5;","}"]}]

test/support/helper.js

@@ -143,6 +143,12 @@ exports.md5File = function(file, md5, context) {
     });
 }
 
+helper.removeErrorFilename = function(error) {
+    error.forEach(function(e) {
+        e.filename = "[absolute path]";
+    });
+    return error;
+};
 
 helper.removeAbsoluteImages = function(xml) {
     (Array.isArray(xml.Style) ? xml.Style : [ xml.Style ]).forEach(function(style) {