Merge pull request #25 from GitbookIO/feature/generators

Feature/generators

14 files changed, 272 insertions, 188 deletions

diff --git a/bin/gitbook.js b/bin/gitbook.js
index 6e29986..3abeafd 100755
--- a/bin/gitbook.js
+++ b/bin/gitbook.js
@@ -1,6 +1,7 @@
 #! /usr/bin/env node
 
 // Requires
+var Q = require('q');
 var _ = require('lodash');
 var path = require('path');
 var prog = require('commander');
@@ -10,9 +11,14 @@ var fs = require('fs');
 var pkg = require('../package.json');
 var generate = require("../lib/generate");
 var parse = require("../lib/parse");
+var generators = require("../lib/generate").generators;
 
 var utils = require('./utils');
 
+var logError = function(err) {
+    console.log(err.message || err);
+    return Q.reject(err);
+};
 
 // General options
 prog
@@ -25,6 +31,7 @@ prog
 .command('build [source_dir]')
 .description('Build a gitbook from a directory')
 .option('-o, --output <directory>', 'Path to output directory, defaults to ./_book')
+.option('-g, --generator <name>', 'Change generator, defaults to site, availables are: '+_.keys(generators).join(", "))
 .option('-t, --title <name>', 'Name of the book to generate, defaults to repo name')
 .option('-i, --intro <intro>', 'Description of the book to generate')
 .option('-g, --github <repo_path>', 'ID of github repo like : username/repo')
@@ -55,20 +62,19 @@ prog
         var title = options.title || utils.titleCase(repo);
 
         return generate.folder(
-            dir,
-            outputDir,
             {
+                input: dir,
+                output: outputDir,
                 title: title,
                 description: options.intro,
-                github: githubID
+                github: githubID,
+                generator: options.generator
             }
         );
     })
     .then(function(output) {
         console.log("Successfuly built !");
-    }, function(err) {
-        throw err;
-    })
+    }, logError)
     .then(_.constant(outputDir));
 });
 
@@ -85,15 +91,13 @@ prog
     .then(function(outputDir) {
         console.log();
         console.log('Starting server ...');
-        return utils.serveDir(outputDir, options.port);
+        return utils.serveDir(outputDir, options.port)
+        .fail(logError);
     })
     .then(function() {
         console.log('Serving book on http://localhost:'+options.port);
         console.log();
         console.log('Press CTRL+C to quit ...');
-    })
-    .fail(function(err) {
-        console.error(err);
     });
 });
 
diff --git a/lib/generate/generator.js b/lib/generate/generator.js
new file mode 100644
index 0000000..3fe080e
--- /dev/null
+++ b/lib/generate/generator.js
@@ -0,0 +1,32 @@
+var path = require("path");
+var Q = require("q");
+var fs = require("./fs");
+
+var BaseGenerator = function(options) {
+    this.options = options;
+};
+
+BaseGenerator.prototype.convertFile = function(content, input) {
+    return Q.reject(new Error("Could not convert "+input));
+};
+
+BaseGenerator.prototype.transferFile = function(input) {
+    return fs.copy(
+        path.join(this.options.input, input),
+        path.join(this.options.output, input)
+    );
+};
+
+BaseGenerator.prototype.transferFolder = function(input) {
+    return fs.mkdirp(
+        path.join(this.options.output, input)
+    );
+};
+
+BaseGenerator.prototype.finish = function() {
+    return Q.reject(new Error("Could not finish generation"));
+};
+
+
+
+module.exports = BaseGenerator;
\ No newline at end of file
diff --git a/lib/generate/generator_json.js b/lib/generate/generator_json.js
new file mode 100644
index 0000000..b331bfd
--- /dev/null
+++ b/lib/generate/generator_json.js
@@ -0,0 +1,47 @@
+var util = require("util");
+var path = require("path");
+var Q = require("q");
+
+var fs = require("./fs");
+var parse = require("../parse");
+var BaseGenerator = require("./generator");
+
+
+var Generator = function() {
+    BaseGenerator.apply(this, arguments);
+};
+util.inherits(Generator, BaseGenerator);
+
+Generator.prototype.transferFile = function(input) {
+    // ignore
+};
+
+Generator.prototype.convertFile = function(content, input) {
+    var that = this;
+    var json = {
+        progress: parse.progress(this.options.navigation, input)
+    };
+
+    return Q()
+    .then(function() {
+        return parse.page(content, {
+            repo: that.options.githubId,
+            dir: path.dirname(input) || '/'
+        });
+    })
+    .then(function(sections) {
+        json.sections = sections;
+    })
+    .then(function() {
+        return fs.writeFile(
+            path.join(that.options.output, input.replace(".md", ".json")),
+            JSON.stringify(json, null, 4)
+        );
+    });
+};
+
+Generator.prototype.finish = function() {
+    // ignore
+};
+
+module.exports = Generator;
\ No newline at end of file
diff --git a/lib/generate/generator_site.js b/lib/generate/generator_site.js
new file mode 100644
index 0000000..7d40a1a
--- /dev/null
+++ b/lib/generate/generator_site.js
@@ -0,0 +1,91 @@
+var util = require("util");
+var path = require("path");
+var Q = require("q");
+var swig = require('swig');
+
+var fs = require("./fs");
+var parse = require("../parse");
+var BaseGenerator = require("./generator");
+
+// Swig filter for returning the count of lines in a code section
+swig.setFilter('lines', function(content) {
+    return content.split('\n').length;
+});
+
+// Swig filter for returning a link to the associated html file of a markdown file
+swig.setFilter('mdLink', function(link) {
+    return link.replace(".md", ".html");
+});
+
+var Generator = function() {
+    BaseGenerator.apply(this, arguments);
+
+    // Load base template
+    this.template = swig.compileFile(path.resolve(__dirname, '../../templates/page.html'));
+};
+util.inherits(Generator, BaseGenerator);
+
+
+// Convert a markdown file to html
+Generator.prototype.convertFile = function(content, _input) {
+    var that = this;
+    var progress = parse.progress(this.options.navigation, _input);
+
+    _output = _input.replace(".md", ".html");
+
+    var input = path.join(this.options.input, _input);
+    var output = path.join(this.options.output, _output);
+    var basePath = path.relative(path.dirname(output), this.options.output) || ".";
+    
+    return Q()
+    .then(function() {
+        return parse.page(content, {
+            repo: that.options.githubId,
+            dir: path.dirname(input) || '/'
+        });
+    })
+    .then(function(sections) {
+        return that.template({
+            title: that.options.title,
+            description: that.options.description,
+
+            githubAuthor: that.options.github.split("/")[0],
+            githubId: that.options.github,
+            githubHost: that.options.githubHost,
+
+            summary: that.options.summary,
+            allNavigation: that.options.navigation,
+            progress: progress,
+
+            _input: _input,
+            content: sections,
+
+            basePath: basePath,
+            staticBase: path.join(basePath, "gitbook"),
+        });
+    })
+    .then(function(html) {
+        return fs.writeFile(
+            output,
+            html
+        );
+    });
+};
+
+// Symlink index.html and copy assets
+Generator.prototype.finish = function() {
+    var that = this;
+
+    return fs.symlink(
+        path.join(that.options.output, 'README.html'),
+        path.join(that.options.output, 'index.html')
+    )
+    .then(function() {
+        return fs.copy(
+            path.join(__dirname, "../../assets/static"),
+            path.join(that.options.output, "gitbook")
+        );
+    });
+};
+
+module.exports = Generator;
\ No newline at end of file
diff --git a/lib/generate/index.js b/lib/generate/index.js
index ee5ffc4..95f325c 100644
--- a/lib/generate/index.js
+++ b/lib/generate/index.js
@@ -5,12 +5,24 @@ var path = require("path");
 
 var fs = require("./fs");
 var parse = require("../parse");
-var template = require("./template");
 
-var generate = function(root, output, options) {
-    var files, summary, navigation, tpl;
+var generators = {
+    "site": require("./generator_site"),
+    "json": require("./generator_json")
+};
+
+var generate = function(options) {
+    var generator = null;
+    var files;
 
     options = _.defaults(options || {}, {
+        // Folders to use
+        input: null,
+        output: null,
+
+        // Output generator
+        generator: "site",
+
         // Book title, keyword, description
         title: null,
         description: "Book generated using GitBook",
@@ -20,20 +32,24 @@ var generate = function(root, output, options) {
         githubHost: 'https://github.com/'
     });
 
-    if (!options.github || !options.title) {
-        return Q.reject(new Error("Need options.github and options.title"));
+    if (!options.github || !options.title || !options.input || !options.output) {
+        return Q.reject(new Error("Need options: github, title, input, output"));
+    }
+
+    if (!generators[options.generator]) {
+        return Q.reject(new Error("Invalid generator (availables are: "+_.keys(generators).join(", ")));
     }
 
     // Clean output folder
-    return fs.remove(output)
+    return fs.remove(options.output)
 
     .then(function() {
-        return fs.mkdirp(output);
+        return fs.mkdirp(options.output);
     })
 
     // List all files in the repository
     .then(function() {
-        return fs.list(root);
+        return fs.list(options.input);
     })
 
     // Check repository is valid
@@ -47,32 +63,18 @@ var generate = function(root, output, options) {
 
     // Get summary
     .then(function() {
-        return fs.readFile(path.join(root, "SUMMARY.md"), "utf-8")
+        return fs.readFile(path.join(options.input, "SUMMARY.md"), "utf-8")
         .then(function(_summary) {
-            summary = parse.summary(_summary);
+            options.summary = parse.summary(_summary);
 
             // Parse navigation
-            navigation = parse.navigation(summary);
+            options.navigation = parse.navigation(options.summary);
         });
     })
 
-    // Create template
+    // Create the generator
     .then(function() {
-        tpl = template({
-            root: root,
-            output: output,
-            locals: {
-                title: options.title,
-                description: options.description,
-
-                githubAuthor: options.github.split("/")[0],
-                githubId: options.github,
-                githubHost: options.githubHost,
-
-                summary: summary,
-                allNavigation: navigation
-            }
-        });
+        generator = new generators[options.generator](options);
     })
 
     // Copy file and replace markdown file
@@ -81,49 +83,29 @@ var generate = function(root, output, options) {
             _.chain(files)
             .map(function(file) {
                 if (!file) return;
-                var _html = file.replace(".md", ".html");
 
-                // Folder
                 if (file[file.length -1] == "/") {
-                    return fs.mkdirp(
-                        path.join(output, file)
-                    );
-                }
-
-                // Markdown file (only from the summary)
-                else if (path.extname(file) == ".md" && navigation[_html] != null) {
-                    return tpl(file, file.replace(".md", ".html"));
-                }
-
-                // Copy file
-                else {
-                    return fs.copy(
-                        path.join(root, file),
-                        path.join(output, file)
-                    );
+                    return Q(generator.transferFolder(file));
+                } else if (path.extname(file) == ".md" && options.navigation[file] != null) {
+                    return fs.readFile(path.join(options.input, file), "utf-8")
+                    .then(function(content) {
+                        return Q(generator.convertFile(content, file));
+                    });
+                } else {
+                    return Q(generator.transferFile(file));
                 }
             })
             .value()
         );
     })
 
-    // Symlink index.html to README.html
-    .then(function() {
-        return fs.symlink(
-            path.join(output, 'README.html'),
-            path.join(output, 'index.html')
-        );
-    })
-
-    // Copy assets
+    // Finish gneration
     .then(function() {
-        return fs.copy(
-            path.join(__dirname, "../../assets/static"),
-            path.join(output, "gitbook")
-        );
+        return generator.finish();
     });
 };
 
 module.exports = {
+    generators: generators,
     folder: generate
 };
diff --git a/lib/generate/template.js b/lib/generate/template.js
deleted file mode 100644
index d4e8cae..0000000
--- a/lib/generate/template.js
+++ /dev/null
@@ -1,66 +0,0 @@
-var swig = require('swig');
-var path = require('path');
-var _ = require("lodash");
-
-var parse = require("../parse");
-
-var fs = require('./fs');
-
-swig.setFilter('lines', function(content) {
-    return content.split('\n').length;
-});
-
-// return a templeter for page
-var initTemplate = function(options) {
-    var tpl = swig.compileFile(path.resolve(__dirname, '../../templates/page.html'));
-
-    options = _.defaults(options || {}, {
-        // Base folder for input
-        root: "./",
-
-        // Base folder for output
-        output: "./",
-
-        // Locals for templates
-        locals: {}
-    });
-
-    return function(input, output, local) {
-        var _input = input, _output = output;
-        input = path.join(options.root, input);
-        output = path.join(options.output, output);
-
-        var basePath = path.relative(path.dirname(output), options.output) || ".";
-
-        // Read markdown file
-        return fs.readFile(input, "utf-8")
-
-        // Parse sections
-        .then(function(markdown) {
-            return parse.page(markdown, {
-                repo: options.locals.githubId,
-                dir: path.dirname(_input) || '/'
-            });
-        })
-
-        //Calcul template
-        .then(function(sections) {
-            return tpl(
-                _.extend(local || {}, options.locals, {
-                    _input: _input,
-                    content: sections,
-                    basePath: basePath,
-                    staticBase: path.join(basePath, "gitbook"),
-                    progress: parse.progress(options.locals.allNavigation, _output)
-                })
-            );
-        })
-
-        // Write html
-        .then(function(html) {
-            return fs.writeFile(output, html);
-        })
-    }
-};
-
-module.exports = initTemplate;
\ No newline at end of file
diff --git a/lib/parse/navigation.js b/lib/parse/navigation.js
index 145c873..bba25ce 100644
--- a/lib/parse/navigation.js
+++ b/lib/parse/navigation.js
@@ -1,15 +1,15 @@
 var _ = require('lodash');
 
 // Cleans up an article/chapter object
-// remove 'articles' and '_path' attributes
+// remove 'articles' attributes
 function clean(obj) {
-    return obj && _.omit(obj, ['articles', '_path']);
+    return obj && _.omit(obj, ['articles']);
 }
 
 // Returns from a summary a map of
 /*
     {
-        "file/path.html": {
+        "file/path.md": {
             prev: ...,
             next: ...,
         },
@@ -25,7 +25,7 @@ function navigation(summary, files) {
 
     // Special README nav
     var README_NAV = {
-        path: 'README.html',
+        path: 'README.md',
         title: 'Introduction',
     };
 
@@ -69,7 +69,7 @@ function navigation(summary, files) {
     });
 
     // Hack for README.html
-    mapping['README.html'] = {
+    mapping['README.md'] = {
         title: README_NAV.title,
         prev: null,
         next: clean(summary.chapters[0]),
diff --git a/lib/parse/summary.js b/lib/parse/summary.js
index 0995c40..7725b59 100644
--- a/lib/parse/summary.js
+++ b/lib/parse/summary.js
@@ -82,10 +82,7 @@ function parseTitle(src, nums) {
         level: level,
 
         // Replace .md references with .html
-        path: matches[2].replace(/\.md$/, '.html'),
-
-        // Original, non normalized path
-        _path: matches[2],
+        path: matches[2],
     };
 }
 
diff --git a/templates/includes/book/footer.html b/templates/includes/book/footer.html
index 48f4bf9..1112b14 100644
--- a/templates/includes/book/footer.html
+++ b/templates/includes/book/footer.html
@@ -1,10 +1,10 @@
 <div class="page-footer">
     {% if _input == "README.md" %}
-        <a href="{{ basePath }}/{{ progress.current.next.path }}" class="navigation-link">Start</a>
+        <a href="{{ basePath }}/{{ progress.current.next.path|mdLink }}" class="navigation-link">Start</a>
     {% else %}
         {% if progress.current.next %}
             {% if progress.current.next.path %}
-            <a href="{{ basePath }}/{{ progress.current.next.path }}" class="navigation-link next">Next</a>
+            <a href="{{ basePath }}/{{ progress.current.next.path|mdLink }}" class="navigation-link next">Next</a>
             {% else %}
             <div class="navigation-link coming-soon">Coming soon</div>
             {% endif %}
diff --git a/templates/includes/book/progress.html b/templates/includes/book/progress.html
index d0e3193..176c95f 100644
--- a/templates/includes/book/progress.html
+++ b/templates/includes/book/progress.html
@@ -4,7 +4,7 @@
     </div>
     <div class="chapters">
     {% for p in progress.chapters %}
-        <a href="{{ basePath }}/{{ p.path }}" title="{{ p.title }}" class="chapter {% if p.done %}done{% endif %} {% if p.level.length == 1 %}new-chapter{% endif %}" data-progress="{{ p.level }}" style="left: {{ p.percent }}%;"></a>
+        <a href="{{ basePath }}/{{ p.path|mdLink }}" title="{{ p.title }}" class="chapter {% if p.done %}done{% endif %} {% if p.level.length == 1 %}new-chapter{% endif %}" data-progress="{{ p.level }}" style="left: {{ p.percent }}%;"></a>
     {% endfor %}
     </div>
 </div>
\ No newline at end of file
diff --git a/templates/includes/book/summary.html b/templates/includes/book/summary.html
index d74fb18..996ff3d 100644
--- a/templates/includes/book/summary.html
+++ b/templates/includes/book/summary.html
@@ -16,7 +16,7 @@
         {% for item in summary.chapters %}
             <li {% if item._path == _input %}class="active"{% endif %} data-level="{{ item.level }}">
                 {% if item.path %}
-                <a href="{{ basePath }}/{{ item.path }}">
+                <a href="{{ basePath }}/{{ item.path|mdLink }}">
                     <i class="fa fa-check"></i> <b>{{ item.level }})</b> {{ item.title }}
                 </a>
                 {% else %}
@@ -27,7 +27,7 @@
                     {% for article in item.articles %}
                         <li {% if article._path == _input %}class="active"{% endif %} data-level="{{ article.level }}">
                             {% if article.path %}
-                            <a href="{{ basePath }}/{{ article.path }}">
+                            <a href="{{ basePath }}/{{ article.path|mdLink }}">
                                 <i class="fa fa-check"></i> <b>{{ article.level }})</b> {{ article.title }}
                             </a>
                             {% else %}
diff --git a/templates/layout.html b/templates/layout.html
index c0f52cb..47184b3 100644
--- a/templates/layout.html
+++ b/templates/layout.html
@@ -13,10 +13,10 @@
         <meta name="generator" content="www.gitbook.io">
 
         {% if progress.current.next and progress.current.next.path %}
-        <link rel="next" href="{{ basePath }}/{{ progress.current.next.path }}" />
+        <link rel="next" href="{{ basePath }}/{{ progress.current.next.path|mdLink }}" />
         {% endif %}
         {% if progress.current.prev and progress.current.prev.path %}
-        <link rel="prev" href="{{ basePath }}/{{ progress.current.prev.path }}" />
+        <link rel="prev" href="{{ basePath }}/{{ progress.current.prev.path|mdLink }}" />
         {% endif %}
 
         <meta property="og:title" content="{% block title %} | {{ title }}{% endblock %}">
diff --git a/test/navigation.js b/test/navigation.js
index 23d98ac..b0e5b98 100644
--- a/test/navigation.js
+++ b/test/navigation.js
@@ -13,57 +13,57 @@ var LEXED = summary(CONTENT);
 describe('Summary navigation', function() {
     it('should provide next & prev entries for a file', function() {
         var nav = navigation(LEXED, [
-            'README.html',
-            'chapter-1/README.html',
-            'chapter-1/ARTICLE1.html',
-            'chapter-1/ARTICLE2.html',
-            'chapter-2/README.html',
+            'README.md',
+            'chapter-1/README.md',
+            'chapter-1/ARTICLE1.md',
+            'chapter-1/ARTICLE2.md',
+            'chapter-2/README.md',
         ]);
 
         // Make sure it found the files we gave it
-        assert(nav['README.html']);
-        assert(nav['chapter-1/README.html']);
-        assert(nav['chapter-1/ARTICLE1.html']);
-        assert(nav['chapter-1/ARTICLE2.html']);
-        assert(nav['chapter-2/README.html']);
+        assert(nav['README.md']);
+        assert(nav['chapter-1/README.md']);
+        assert(nav['chapter-1/ARTICLE1.md']);
+        assert(nav['chapter-1/ARTICLE2.md']);
+        assert(nav['chapter-2/README.md']);
 
 
-        assert.equal(nav['README.html'].prev, null);
-        assert.equal(nav['README.html'].next.path, 'chapter-1/README.html');
+        assert.equal(nav['README.md'].prev, null);
+        assert.equal(nav['README.md'].next.path, 'chapter-1/README.md');
 
-        assert.equal(nav['chapter-1/README.html'].prev.path, 'README.html');
-        assert.equal(nav['chapter-1/README.html'].next.path, 'chapter-1/ARTICLE1.html');
+        assert.equal(nav['chapter-1/README.md'].prev.path, 'README.md');
+        assert.equal(nav['chapter-1/README.md'].next.path, 'chapter-1/ARTICLE1.md');
 
-        assert.equal(nav['chapter-1/ARTICLE1.html'].prev.path, 'chapter-1/README.html');
-        assert.equal(nav['chapter-1/ARTICLE1.html'].next.path, 'chapter-1/ARTICLE2.html');
+        assert.equal(nav['chapter-1/ARTICLE1.md'].prev.path, 'chapter-1/README.md');
+        assert.equal(nav['chapter-1/ARTICLE1.md'].next.path, 'chapter-1/ARTICLE2.md');
 
-        assert.equal(nav['chapter-1/ARTICLE2.html'].prev.path, 'chapter-1/ARTICLE1.html');
-        assert.equal(nav['chapter-1/ARTICLE2.html'].next.path, 'chapter-2/README.html');
+        assert.equal(nav['chapter-1/ARTICLE2.md'].prev.path, 'chapter-1/ARTICLE1.md');
+        assert.equal(nav['chapter-1/ARTICLE2.md'].next.path, 'chapter-2/README.md');
 
-        assert.equal(nav['chapter-2/README.html'].prev.path, 'chapter-1/ARTICLE2.html');
-        assert.equal(nav['chapter-2/README.html'].next.path, 'chapter-3/README.html');
+        assert.equal(nav['chapter-2/README.md'].prev.path, 'chapter-1/ARTICLE2.md');
+        assert.equal(nav['chapter-2/README.md'].next.path, 'chapter-3/README.md');
     });
 
     it('should give full tree, when not limited', function() {
         var nav = navigation(LEXED);
 
-        assert(nav['README.html']);
-        assert(nav['chapter-1/README.html']);
-        assert(nav['chapter-1/ARTICLE1.html']);
-        assert(nav['chapter-1/ARTICLE2.html']);
-        assert(nav['chapter-2/README.html']);
-        assert(nav['chapter-3/README.html']);
+        assert(nav['README.md']);
+        assert(nav['chapter-1/README.md']);
+        assert(nav['chapter-1/ARTICLE1.md']);
+        assert(nav['chapter-1/ARTICLE2.md']);
+        assert(nav['chapter-2/README.md']);
+        assert(nav['chapter-3/README.md']);
     });
 
     it('should detect levels correctly', function() {
         var nav = navigation(LEXED);
 
-        assert.equal(nav['README.html'].level, '0');
-        assert.equal(nav['chapter-1/README.html'].level, '1');
-        assert.equal(nav['chapter-1/ARTICLE1.html'].level, '1.1');
-        assert.equal(nav['chapter-1/ARTICLE2.html'].level, '1.2');
-        assert.equal(nav['chapter-2/README.html'].level, '2');
-        assert.equal(nav['chapter-3/README.html'].level, '3');
+        assert.equal(nav['README.md'].level, '0');
+        assert.equal(nav['chapter-1/README.md'].level, '1');
+        assert.equal(nav['chapter-1/ARTICLE1.md'].level, '1.1');
+        assert.equal(nav['chapter-1/ARTICLE2.md'].level, '1.2');
+        assert.equal(nav['chapter-2/README.md'].level, '2');
+        assert.equal(nav['chapter-3/README.md'].level, '3');
     });
 
     it('should not accept null paths', function() {
diff --git a/test/summary.js b/test/summary.js
index 51169d5..d1ef3dd 100644
--- a/test/summary.js
+++ b/test/summary.js
@@ -37,12 +37,9 @@ describe('Summary parsing', function () {
     });
 
     it('should normalize paths from .md to .html', function() {
-        assert.equal(LEXED.chapters[0].path,'chapter-1/README.html');
-        assert.equal(LEXED.chapters[0]._path,'chapter-1/README.md');
-        assert.equal(LEXED.chapters[1].path,'chapter-2/README.html');
-        assert.equal(LEXED.chapters[1]._path,'chapter-2/README.md');
-        assert.equal(LEXED.chapters[2].path,'chapter-3/README.html');
-        assert.equal(LEXED.chapters[2]._path,'chapter-3/README.md');
+        assert.equal(LEXED.chapters[0].path,'chapter-1/README.md');
+        assert.equal(LEXED.chapters[1].path,'chapter-2/README.md');
+        assert.equal(LEXED.chapters[2].path,'chapter-3/README.md');
     });
 
     it('should detect levels correctly', function() {