Add markdown format support (#25)

Co-authored-by: Dawid Dziurla <dawidd0811@gmail.com>

node_modules/showdown/test/node/showdown.js

@@ -0,0 +1,158 @@
+require('source-map-support').install();
+require('chai').should();
+var expect = require('chai').expect,
+    showdown = require('../bootstrap').showdown;
+
+describe('showdown.options', function () {
+  'use strict';
+
+  describe('setOption() and getOption()', function () {
+    it('should set option foo=bar', function () {
+      showdown.setOption('foo', 'bar');
+      showdown.getOption('foo').should.equal('bar');
+      showdown.resetOptions();
+      (typeof showdown.getOption('foo')).should.equal('undefined');
+    });
+  });
+
+  describe('getDefaultOptions()', function () {
+    it('should get default options', function () {
+      var opts = require('../optionswp').getDefaultOpts(true);
+      expect(showdown.getDefaultOptions()).to.be.eql(opts);
+    });
+  });
+});
+
+describe('showdown.extension()', function () {
+  'use strict';
+
+  var extObjMock = {
+        type: 'lang',
+        filter: function () {}
+      },
+      extObjFunc = function () {
+        return extObjMock;
+      };
+
+  describe('should register', function () {
+    it('an extension object', function () {
+      showdown.extension('foo', extObjMock);
+      showdown.extension('foo').should.eql([extObjMock]);
+      showdown.resetExtensions();
+    });
+
+    it('an extension function', function () {
+      showdown.extension('foo', extObjFunc);
+      showdown.extension('foo').should.eql([extObjMock]);
+      showdown.resetExtensions();
+    });
+
+    it('a listener extension', function () {
+      showdown.extension('foo', {
+        type: 'listener',
+        listeners: {
+          foo: function (name, txt) {
+            return txt;
+          }
+        }
+      });
+      showdown.resetExtensions();
+    });
+  });
+
+  describe('should refuse to register', function () {
+    it('a generic object', function () {
+      var fn = function () {
+        showdown.extension('foo', {});
+      };
+      expect(fn).to.throw();
+    });
+
+    it('an extension with invalid type', function () {
+      var fn = function () {
+        showdown.extension('foo', {
+          type: 'foo'
+        });
+      };
+      expect(fn).to.throw(/type .+? is not recognized\. Valid values: "lang\/language", "output\/html" or "listener"/);
+    });
+
+    it('an extension without regex or filter', function () {
+      var fn = function () {
+        showdown.extension('foo', {
+          type: 'lang'
+        });
+      };
+      expect(fn).to.throw(/extensions must define either a "regex" property or a "filter" method/);
+    });
+
+    it('a listener extension without a listeners property', function () {
+      var fn = function () {
+        showdown.extension('foo', {
+          type: 'listener'
+        });
+      };
+      expect(fn).to.throw(/Extensions of type "listener" must have a property called "listeners"/);
+    });
+  });
+});
+
+describe('showdown.getAllExtensions()', function () {
+  'use strict';
+  var extObjMock = {
+    type: 'lang',
+    filter: function () {}
+  };
+
+  it('should return all extensions', function () {
+    showdown.extension('bar', extObjMock);
+    showdown.getAllExtensions().should.eql({bar: [extObjMock]});
+  });
+});
+
+describe('showdown.setFlavor()', function () {
+  'use strict';
+  it('should set flavor to github', function () {
+    showdown.setFlavor('github');
+    showdown.getFlavor().should.equal('github');
+    showdown.setFlavor('vanilla');
+  });
+
+  it('should set options correctly', function () {
+    showdown.setFlavor('github');
+    var ghOpts = showdown.getFlavorOptions('github'),
+        shOpts = showdown.getOptions();
+    for (var opt in ghOpts) {
+      if (ghOpts.hasOwnProperty(opt)) {
+        shOpts.should.have.property(opt);
+        shOpts[opt].should.equal(ghOpts[opt]);
+      }
+    }
+    showdown.setFlavor('vanilla');
+  });
+
+  it('should switch between flavors correctly', function () {
+    showdown.setFlavor('github');
+    var ghOpts = showdown.getFlavorOptions('github'),
+        shOpts = showdown.getOptions(),
+        dfOpts = showdown.getDefaultOptions();
+    for (var opt in dfOpts) {
+      if (ghOpts.hasOwnProperty(opt)) {
+        shOpts[opt].should.equal(ghOpts[opt]);
+      } else {
+        shOpts[opt].should.equal(dfOpts[opt]);
+      }
+    }
+    showdown.setFlavor('original');
+    var orOpts = showdown.getFlavorOptions('original');
+    shOpts = showdown.getOptions();
+    for (opt in dfOpts) {
+      if (orOpts.hasOwnProperty(opt)) {
+        shOpts[opt].should.equal(orOpts[opt]);
+      } else {
+        shOpts[opt].should.equal(dfOpts[opt]);
+      }
+    }
+    showdown.setFlavor('vanilla');
+  });
+});