Add multipass tests

lib/svgo.js

@@ -1,71 +1,72 @@
-'use strict';
-
-/**
- * SVGO is a Nodejs-based tool for optimizing SVG vector graphics files.
- *
- * @see https://github.com/svg/svgo
- *
- * @author Kir Belevich <kir@soulshine.in> (https://github.com/deepsweet)
- * @copyright © 2012 Kir Belevich
- * @license MIT https://raw.githubusercontent.com/svg/svgo/master/LICENSE
- */
-
-var CONFIG = require('./svgo/config.js'),
-    SVG2JS = require('./svgo/svg2js.js'),
-    PLUGINS = require('./svgo/plugins.js'),
-    JSAPI = require('./svgo/jsAPI.js'),
-    encodeSVGDatauri = require('./svgo/tools.js').encodeSVGDatauri,
-    JS2SVG = require('./svgo/js2svg.js');
-
-var SVGO = function(config) {
-    this.config = CONFIG(config);
-};
-
-SVGO.prototype.optimize = function(svgstr, info = {}) {
-    const config = this.config;
-    if (config.error) {
-        throw Error(config.error);
-    }
-    const maxPassCount = config.multipass ? 10 : 1;
-    let prevResultSize = Number.POSITIVE_INFINITY;
-    let svgjs = null;
-    for (let i = 0; i < maxPassCount; i += 1) {
-        svgjs = SVG2JS(svgstr);
-        if (svgjs.error == null) {
-            svgjs = PLUGINS(svgjs, info, config.plugins);
-        }
-        svgjs = JS2SVG(svgjs, config.js2svg);
-        if (svgjs.error) {
-            throw Error(svgjs.error);
-        }
-        info.multipassCount = i;
-        if (svgjs.data.length < prevResultSize) {
-            prevResultSize = svgjs.data.length
-        } else {
-            if (config.datauri) {
-                svgjs.data = encodeSVGDatauri(svgjs.data, config.datauri);
-            }
-            if (info && info.path) {
-                svgjs.path = info.path;
-            }
-            return svgjs;
-        }
-    }
-    return svgjs;
-};
-
-/**
- * The factory that creates a content item with the helper methods.
- *
- * @param {Object} data which is passed to jsAPI constructor
- * @returns {JSAPI} content item
- */
-SVGO.prototype.createContentItem = function(data) {
-    return new JSAPI(data);
-};
-
-SVGO.Config = CONFIG;
-
-module.exports = SVGO;
-// Offer ES module interop compatibility.
-module.exports.default = SVGO;
+'use strict';
+
+/**
+ * SVGO is a Nodejs-based tool for optimizing SVG vector graphics files.
+ *
+ * @see https://github.com/svg/svgo
+ *
+ * @author Kir Belevich <kir@soulshine.in> (https://github.com/deepsweet)
+ * @copyright © 2012 Kir Belevich
+ * @license MIT https://raw.githubusercontent.com/svg/svgo/master/LICENSE
+ */
+
+var CONFIG = require('./svgo/config.js'),
+    SVG2JS = require('./svgo/svg2js.js'),
+    PLUGINS = require('./svgo/plugins.js'),
+    JSAPI = require('./svgo/jsAPI.js'),
+    encodeSVGDatauri = require('./svgo/tools.js').encodeSVGDatauri,
+    JS2SVG = require('./svgo/js2svg.js');
+
+var SVGO = function(config) {
+    this.config = CONFIG(config);
+};
+
+SVGO.prototype.optimize = function(svgstr, info = {}) {
+    const config = this.config;
+    if (config.error) {
+        throw Error(config.error);
+    }
+    const maxPassCount = config.multipass ? 10 : 1;
+    let prevResultSize = Number.POSITIVE_INFINITY;
+    let svgjs = null;
+	info.multipassCount = 0;
+    for (let i = 0; i < maxPassCount; i += 1) {
+        svgjs = SVG2JS(svgstr);
+        if (svgjs.error == null) {
+            svgjs = PLUGINS(svgjs, info, config.plugins);
+        }
+        svgjs = JS2SVG(svgjs, config.js2svg);
+        if (svgjs.error) {
+            throw Error(svgjs.error);
+        }
+        info.multipassCount = i;
+        if (svgjs.data.length < prevResultSize) {
+            prevResultSize = svgjs.data.length
+        } else {
+            if (config.datauri) {
+                svgjs.data = encodeSVGDatauri(svgjs.data, config.datauri);
+            }
+            if (info && info.path) {
+                svgjs.path = info.path;
+            }
+            return svgjs;
+        }
+    }
+    return svgjs;
+};
+
+/**
+ * The factory that creates a content item with the helper methods.
+ *
+ * @param {Object} data which is passed to jsAPI constructor
+ * @returns {JSAPI} content item
+ */
+SVGO.prototype.createContentItem = function(data) {
+    return new JSAPI(data);
+};
+
+SVGO.Config = CONFIG;
+
+module.exports = SVGO;
+// Offer ES module interop compatibility.
+module.exports.default = SVGO;