Add test for parameter rendering.

lib/carto/renderer.js

@@ -86,15 +86,18 @@ carto.Renderer.prototype.render = function render(m, callback) {
         // Non URL-bound TileJSON properties.
         case 'bounds':
         case 'center':
+        case 'minzoom':
+        case 'maxzoom':
+        case 'version':
+            memo.push('  <Parameter name="' + k + '">' + v + '</Parameter>');
+            break;
+        // Properties that require CDATA.
         case 'name':
         case 'description':
         case 'legend':
         case 'attribution':
         case 'template':
-        case 'minzoom':
-        case 'maxzoom':
-        case 'version':
-            memo.push('  <Parameter name="' + k + '">' + v + '</Parameter>');
+            memo.push('  <Parameter name="' + k + '"><![CDATA[' + v + ']]></Parameter>');
             break;
         // Mapnik image format.
         case 'format':

test/rendering/parameters.mml

@@ -0,0 +1,28 @@
+{
+    "srs": "+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0.0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs +over",
+    "bounds": [-180,-85,180,85],
+    "center": [-78,40,8],
+    "name": "Parameters",
+    "description": "Mapnik parameter test.",
+    "legend": "<p>This is HTML.</p>",
+    "attribution": "<a href='http://openstreetmap.org'>OpenStreetMap</a>",
+    "template": "<b>{{NAME}}</b>",
+    "minzoom": 0,
+    "maxzoom": 12,
+    "version": "1.0.0",
+    "format": "png",
+    "interactivity": {
+        "layer": "world",
+        "fields": ["NAME"]
+    },
+    "omitted": "Omitted property.",
+    "Stylesheet": [],
+    "Layer": [{
+        "name": "world",
+        "srs": "+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0.0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs +over",
+        "Datasource": {
+            "file": "http://tilemill-data.s3.amazonaws.com/test_data/shape_demo.zip",
+            "type": "shape"
+        }
+    }]
+}

test/rendering/parameters.result

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE Map[]>
+<Map srs="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0.0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs +over">
+<Parameters>
+    <Parameter name="bounds">-180,-85,180,85</Parameter>
+    <Parameter name="center">-78,40,8</Parameter>
+    <Parameter name="name"><![CDATA[Parameters]]></Parameter>
+    <Parameter name="description"><![CDATA[Mapnik parameter test.]]></Parameter>
+    <Parameter name="legend"><![CDATA[<p>This is HTML.</p>]]></Parameter>
+    <Parameter name="attribution"><![CDATA[<a href='http://openstreetmap.org'>OpenStreetMap</a>]]></Parameter>
+    <Parameter name="template"><![CDATA[<b>{{NAME}}</b>]]></Parameter>
+    <Parameter name="minzoom">0</Parameter>
+    <Parameter name="maxzoom">12</Parameter>
+    <Parameter name="version">1.0.0</Parameter>
+    <Parameter name="format">png</Parameter>
+    <Parameter name="interactivity_layer">world</Parameter>
+    <Parameter name="interactivity_fields">NAME</Parameter>
+</Parameters>
+</Map>
+