comment_stream_view_spec.js

describe("app.views.CommentStream", function(){
  beforeEach(function(){
    this.view = new app.views.CommentStream({model : factory.post()});
    loginAs({});
  });

  describe("binds", function() {
    it("calls appendComment on insertion to the comments collection", function() {
      spyOn(this.view, "appendComment");
      this.view.setupBindings();
      this.view.model.comments.push(factory.comment());
      expect(this.view.appendComment).toHaveBeenCalled();
    });

    it("calls removeComment on removal from the comments collection", function() {
      this.view.model.comments.push(factory.comment());
      spyOn(this.view, "removeComment");
      this.view.setupBindings();
      this.view.model.comments.pop();
      expect(this.view.removeComment).toHaveBeenCalled();
    });

    it("calls onFormBlur when clicking outside the comment box", function() {
      // remove existing event handlers
      $(document.body).off("click");

      spyOn(this.view, "onFormBlur");
      this.view.setupBindings();
      $(document.body).click();
      expect(this.view.onFormBlur).toHaveBeenCalled();
    });
  });

  describe("postRenderTemplate", function() {
    beforeEach(function() {
      this.view.render();
    });

    it("calls appendComment for all comments in the collection", function() {
      this.view.model.comments.push(factory.comment({id: 1}));
      this.view.model.comments.push(factory.comment({id: 27}));
      this.view.model.comments.push(factory.comment({id: 3}));
      spyOn(this.view, "appendComment");
      this.view.postRenderTemplate();
      expect(this.view.appendComment.calls.allArgs().map(function(args) {
        return args[0].get("id");
      })).toEqual([1, 27, 3]);
    });

    it("sets commentBox", function() {
      this.view.commentBox = undefined;
      this.view.postRenderTemplate();
      expect(this.view.commentBox).toBeDefined();
      expect(this.view.commentBox).toEqual(this.view.$(".comment_box"));
    });

    it("sets commentSubmitButton", function() {
      this.view.commentSubmitButton = undefined;
      this.view.postRenderTemplate();
      expect(this.view.commentSubmitButton).toBeDefined();
      expect(this.view.commentSubmitButton).toEqual(this.view.$("input[name='commit']"));
    });

    it("sets mentions", function() {
      spyOn(app.views.CommentMention.prototype, "initialize");
      this.view.mentions = undefined;
      this.view.postRenderTemplate();
      var call = app.views.CommentMention.prototype.initialize.calls.mostRecent();
      expect(call.args[0]).toEqual({el: this.view.$el, postId: this.view.model.id});
      expect(this.view.mentions).toBeDefined();
    });

    it("creates the markdown editor", function() {
      spyOn(Diaspora.MarkdownEditor.prototype, "initialize");
      this.view.mdEditor = undefined;
      this.view.postRenderTemplate();
      expect(Diaspora.MarkdownEditor.prototype.initialize).toHaveBeenCalled();
      expect(this.view.mdEditor).toBeDefined();
    });

    it("adds a preview method to the markdown editor that renders mentions", function() {
      this.view.postRenderTemplate();
      var mdInstance = {getContent: function() { return "@{test@example.org}"; }};
      spyOn(this.view.mentions, "getMentionedPeople").and.returnValue([{
        name: "Alice Awesome",
        handle: "test@example.org",
        id: "4",
        guid: "123abc"
      }]);
      var renderedPreview = this.view.mdEditor.options.onPreview(mdInstance),
          renderedText = app.helpers.textFormatter("@{test@example.org}", this.view.mentions.getMentionedPeople());
      expect(renderedPreview).toBe("<div class='preview-content'>" + renderedText + "</div>");
      expect(renderedPreview).toContain("Alice Awesome");
    });
  });

  describe("createComment", function() {
    beforeEach(function() {
      this.view.render();
      this.view.$el.append($("<div id='flash-container'/>"));
      app.flashMessages = new app.views.FlashMessages({ el: this.view.$("#flash-container") });
      this.view.expandComments();
    });

    it("doesn't fire an AJAX request when there are only spaces in the comment box", function() {
      this.view.commentBox.val("   ");
      jasmine.Ajax.requests.reset();
      this.view.createComment();
      expect(jasmine.Ajax.requests.count()).toBe(0);
    });

    it("calls disableCommentBox", function() {
      spyOn(this.view, "disableCommentBox");
      this.view.commentBox.val("text");
      this.view.createComment();
      expect(this.view.disableCommentBox).toHaveBeenCalled();
    });

    context("submission", function() {
      beforeEach(function() {
        this.view.$(".comment_box").val('a new comment');
        this.view.createComment();

        this.request = jasmine.Ajax.requests.mostRecent();
      });

      it("fires an AJAX request", function() {
        var params = this.request.data();

        expect(params.text).toEqual("a new comment");
      });

      context("on success", function() {
        it("adds the comment to the view", function() {
          this.request.respondWith({status: 200, responseText: "[]"});
          expect(this.view.$(".comment-content p").text()).toEqual("a new comment");
        });

        it("resets the comment box value", function() {
          this.request.respondWith({status: 200, responseText: "[]"});
          expect(this.view.commentBox.val()).toBe("");
        });

        it("calls enableCommentBox", function() {
          spyOn(this.view, "enableCommentBox");
          this.request.respondWith({status: 200, responseText: "[]"});
          expect(this.view.enableCommentBox).toHaveBeenCalled();
        });

        it("calls autosize.update for the commentBox", function() {
          spyOn(autosize, "update");
          this.request.respondWith({status: 200, responseText: "[]"});
          expect(autosize.update).toHaveBeenCalledWith(this.view.commentBox);
        });

        it("hides the markdown preview", function() {
          spyOn(this.view.mdEditor, "hidePreview");
          this.request.respondWith({status: 200, responseText: "[]"});
          expect(this.view.mdEditor.hidePreview).toHaveBeenCalled();
        });

        it("closes the form", function() {
          spyOn(this.view, "closeForm");
          this.request.respondWith({status: 200, responseText: "[]"});
          expect(this.view.closeForm).toHaveBeenCalled();
        });
      });

      context("on error", function() {
        it("doesn't add the comment to the view", function() {
          this.request.respondWith({status: 500});
          expect(this.view.$(".comment-content p").text()).not.toEqual("a new comment");
        });

        it("doesn't reset the comment box value", function() {
          this.request.respondWith({status: 500});
          expect(this.view.commentBox.val()).toBe("a new comment");
        });

        it("calls enableCommentBox", function() {
          spyOn(this.view, "enableCommentBox");
          this.request.respondWith({status: 500});
          expect(this.view.enableCommentBox).toHaveBeenCalled();
        });

        it("hides the markdown preview", function() {
          spyOn(this.view.mdEditor, "hidePreview");
          this.request.respondWith({status: 500, responseText: "[]"});
          expect(this.view.mdEditor.hidePreview).toHaveBeenCalled();
        });

        it("opens the form", function() {
          spyOn(this.view, "openForm");
          this.request.respondWith({status: 500, responseText: "[]"});
          expect(this.view.openForm).toHaveBeenCalled();
        });
      });
    });
  });

  describe("disableCommentBox", function() {
    beforeEach(function() {
      this.view.render();
    });

    it("disables the comment box", function() {
      this.view.commentBox.removeAttr("disabled");
      this.view.disableCommentBox();
      expect(this.view.commentBox.prop("disabled")).toBeTruthy();
    });

    it("disables the comment submit button", function() {
      this.view.commentSubmitButton.removeAttr("disabled");
      this.view.disableCommentBox();
      expect(this.view.commentSubmitButton.prop("disabled")).toBeTruthy();
    });
  });

  describe("enableCommentBox", function() {
    beforeEach(function() {
      this.view.render();
    });

    it("removes the 'disabled' attribute from the comment box", function() {
      this.view.commentBox.prop("disabled", true);
      this.view.enableCommentBox();
      expect(this.view.commentBox.prop("disabled")).toBeFalsy();
    });

    it("removes the 'disabled' attribute from the comment submit button", function() {
      this.view.commentSubmitButton.prop("disabled", true);
      this.view.enableCommentBox();
      expect(this.view.commentSubmitButton.prop("disabled")).toBeFalsy();
    });
  });

  describe("appendComment", function(){
    it("appends this.model as 'parent' to the comment", function(){
      var comment = factory.comment();
      spyOn(comment, "set");
      this.view.appendComment(comment);
      expect(comment.set).toHaveBeenCalled();
    });

    it("uses this.CommentView for the Comment view", function() {
      var comment = factory.comment();
      this.view.CommentView = app.views.Comment;
      spyOn(app.views.Comment.prototype, "initialize");
      this.view.appendComment(comment);
      expect(app.views.Comment.prototype.initialize).toHaveBeenCalled();

      this.view.CommentView = app.views.StatusMessage;
      spyOn(app.views.StatusMessage.prototype, "initialize");
      this.view.appendComment(comment);
      expect(app.views.StatusMessage.prototype.initialize).toHaveBeenCalled();
    });

    it("sorts comments in the right order", function() {
      this.view.render();
      this.view.appendComment(factory.comment({"created_at": new Date(2000).toJSON(), "text": "2"}));
      this.view.appendComment(factory.comment({"created_at": new Date(4000).toJSON(), "text": "4"}));
      this.view.appendComment(factory.comment({"created_at": new Date(5000).toJSON(), "text": "5"}));
      this.view.appendComment(factory.comment({"created_at": new Date(6000).toJSON(), "text": "6"}));
      this.view.appendComment(factory.comment({"created_at": new Date(1000).toJSON(), "text": "1"}));
      this.view.appendComment(factory.comment({"created_at": new Date(3000).toJSON(), "text": "3"}));

      expect(this.view.$(".comments div.comment.media").length).toEqual(6);
      expect(this.view.$(".comments div.comment.media div.comment-content p").text()).toEqual("123456");
    });

    it("calls renderPluginWidgets", function() {
      var comment = factory.comment();
      this.view.CommentView = app.views.Comment;
      spyOn(app.views.Comment.prototype, "renderPluginWidgets");
      this.view.appendComment(comment);
      expect(app.views.Comment.prototype.renderPluginWidgets).toHaveBeenCalled();
    });
  });

  describe("removeComment", function() {
    it("removes the comment from the stream", function() {
      this.view.model.comments.push(factory.comment());
      this.view.model.comments.push(factory.comment());
      var comment = factory.comment();
      this.view.model.comments.push(comment);
      this.view.model.comments.push(factory.comment());
      this.view.render();
      expect(this.view.$(".comments div.comment.media").length).toBe(4);
      expect(this.view.$("#" + comment.get("guid")).length).toBe(1);
      this.view.removeComment(comment);
      expect(this.view.$(".comments div.comment.media").length).toBe(3);
      expect(this.view.$("#" + comment.get("guid")).length).toBe(0);
    });
  });

  describe("expandComments", function() {
    it("doesn't drop the comment textbox value on success", function() {
      this.view.render();
      this.view.$("textarea").val("great post!");
      this.view.expandComments();

      jasmine.Ajax.requests.mostRecent().respondWith({
        status: 200,
        responseText: JSON.stringify([factory.comment()])
      });

      expect(this.view.$("textarea").val()).toEqual("great post!");
    });

    it("adds and removes comments in the right order", function() {
      var comments = _.range(42).map(function(_, index) {
        return factory.comment({"text": "" + index, "created_at": new Date(index).toJSON()});
      });
      var evenComments = comments.filter(function(_, index) { return index % 2 === 0; });
      this.view.model.comments.reset(evenComments);
      this.view.render();
      expect(this.view.$(".comments div.comment.media").length).toBe(21);
      expect(this.view.$(".comments div.comment.media div.comment-content p").text()).toEqual(
        evenComments.map(function(c) { return c.get("text"); }).join("")
      );

      var randomComments = _.shuffle(comments).slice(0, 23);
      this.view.expandComments();
      jasmine.Ajax.requests.mostRecent().respondWith({
        status: 200,
        responseText: JSON.stringify(randomComments)
      });

      expect(this.view.$(".comments div.comment.media").length).toBe(23);
      expect(this.view.$(".comments div.comment.media div.comment-content p").text()).toEqual(
        _.sortBy(randomComments, function(c) {
          return c.get("created_at");
        }).map(function(c) {
          return c.get("text");
        }).join("")
      );
    });

    it("shows the spinner when loading comments and removes it on success", function() {
      this.view.render();
      expect(this.view.$(".loading-comments")).toHaveClass("hidden");

      this.view.expandComments();
      expect(this.view.$(".loading-comments")).not.toHaveClass("hidden");

      jasmine.Ajax.requests.mostRecent().respondWith({
        status: 200, responseText: JSON.stringify([])
      });
      expect(this.view.$(".loading-comments")).toHaveClass("hidden");
    });
  });

  describe("openForm", function() {
    beforeEach(function() {
      this.view.render();
    });

    it("adds the 'open' class to form", function() {
      this.view.$("form").removeClass("open");
      this.view.openForm();
      expect(this.view.$("form")).toHaveClass("open");
    });

    it("adds the 'active' class to markdown editor", function() {
      this.view.$(".md-editor").removeClass("active");
      this.view.openForm();
      expect(this.view.$(".md-editor")).toHaveClass("active");
    });
  });

  describe("closeForm", function() {
    beforeEach(function() {
      this.view.render();
    });

    it("removes the 'open' class to form", function() {
      this.view.$("form").addClass("open");
      this.view.closeForm();
      expect(this.view.$("form")).not.toHaveClass("open");
    });

    it("removes the 'active' class to markdown editor", function() {
      this.view.$(".md-editor").addClass("active");
      this.view.closeForm();
      expect(this.view.$(".md-editor")).not.toHaveClass("active");
    });
  });

  describe("onFormBlur", function() {
    beforeEach(function() {
      this.view.render();
      this.view.postRenderTemplate();
      spec.content().html("<div class='new-comment'/><div class='focus_comment_textarea'/>");
    });

    it("does not call closeForm if markdown editor is in preview mode", function() {
      spyOn(this.view, "closeForm");
      spyOn(this.view.mdEditor, "isPreviewMode").and.returnValue(true);
      spyOn(this.view.mdEditor, "userInputEmpty").and.returnValue(true);
      this.view.onFormBlur();
      expect(this.view.closeForm).not.toHaveBeenCalled();
    });

    it("does not call closeForm if markdown editor contains text", function() {
      spyOn(this.view, "closeForm");
      spyOn(this.view.mdEditor, "isPreviewMode").and.returnValue(false);
      spyOn(this.view.mdEditor, "userInputEmpty").and.returnValue(false);
      this.view.onFormBlur();
      expect(this.view.closeForm).not.toHaveBeenCalled();
    });

    it("does not call closeForm when the form is clicked", function() {
      spyOn(this.view, "closeForm");
      spyOn(this.view.mdEditor, "isPreviewMode").and.returnValue(false);
      spyOn(this.view.mdEditor, "userInputEmpty").and.returnValue(true);
      this.view.onFormBlur($.Event("click", {target: $(".new-comment")}));
      expect(this.view.closeForm).not.toHaveBeenCalled();
      this.view.onFormBlur($.Event("click", {target: $(".focus_comment_textarea")}));
      expect(this.view.closeForm).not.toHaveBeenCalled();
    });

    it("calls closeForm when the user clicks outside of the form", function() {
      spyOn(this.view, "closeForm");
      spyOn(this.view.mdEditor, "isPreviewMode").and.returnValue(false);
      spyOn(this.view.mdEditor, "userInputEmpty").and.returnValue(true);
      this.view.onFormBlur($.Event("click", {target: $("body")}));
      expect(this.view.closeForm).toHaveBeenCalled();
    });
  });

  describe("pressing a key when typing on the new comment box", function(){
    var submitCallback;

    beforeEach(function() {
      submitCallback = jasmine.createSpy().and.returnValue(false);
    });

    it("should not submit the form without the ctrl or cmd keys", function() {
      this.view.render();
      var form = this.view.$("form");
      form.submit(submitCallback);

      var e = $.Event("keydown", {which: Keycodes.ENTER, ctrlKey: false, metaKey: false});
      this.view.keyDownOnCommentBox(e);

      expect(submitCallback).not.toHaveBeenCalled();
    });

    it("should submit the form when enter is pressed with ctrl", function() {
      this.view.render();
      var form = this.view.$("form");
      form.submit(submitCallback);

      var e = $.Event("keydown", {which: Keycodes.ENTER, ctrlKey: true});
      this.view.keyDownOnCommentBox(e);

      expect(submitCallback).toHaveBeenCalled();
    });

    it("should submit the form when enter is pressed with cmd", function() {
      this.view.render();
      var form = this.view.$("form");
      form.submit(submitCallback);

      var e = $.Event("keydown", {which: Keycodes.ENTER, metaKey: true});
      this.view.keyDownOnCommentBox(e);

      expect(submitCallback).toHaveBeenCalled();
    });
  });
});