Merge branch 'balsalmiq-support' into 'master'

Initial balsamiq support

See merge request !10564

1 files changed, 342 insertions, 0 deletions

diff --git a/spec/javascripts/blob/balsamiq/balsamiq_viewer_spec.js b/spec/javascripts/blob/balsamiq/balsamiq_viewer_spec.js
new file mode 100644
index 00000000000..85816ee1f11
--- /dev/null
+++ b/spec/javascripts/blob/balsamiq/balsamiq_viewer_spec.js
@@ -0,0 +1,342 @@
+import sqljs from 'sql.js';
+import BalsamiqViewer from '~/blob/balsamiq/balsamiq_viewer';
+import ClassSpecHelper from '../../helpers/class_spec_helper';
+
+describe('BalsamiqViewer', () => {
+  let balsamiqViewer;
+  let endpoint;
+  let viewer;
+
+  describe('class constructor', () => {
+    beforeEach(() => {
+      endpoint = 'endpoint';
+      viewer = {
+        dataset: {
+          endpoint,
+        },
+      };
+
+      balsamiqViewer = new BalsamiqViewer(viewer);
+    });
+
+    it('should set .viewer', () => {
+      expect(balsamiqViewer.viewer).toBe(viewer);
+    });
+
+    it('should set .endpoint', () => {
+      expect(balsamiqViewer.endpoint).toBe(endpoint);
+    });
+  });
+
+  describe('loadFile', () => {
+    let xhr;
+
+    beforeEach(() => {
+      endpoint = 'endpoint';
+      xhr = jasmine.createSpyObj('xhr', ['open', 'send']);
+
+      balsamiqViewer = jasmine.createSpyObj('balsamiqViewer', ['renderFile']);
+      balsamiqViewer.endpoint = endpoint;
+
+      spyOn(window, 'XMLHttpRequest').and.returnValue(xhr);
+
+      BalsamiqViewer.prototype.loadFile.call(balsamiqViewer);
+    });
+
+    it('should call .open', () => {
+      expect(xhr.open).toHaveBeenCalledWith('GET', endpoint, true);
+    });
+
+    it('should set .responseType', () => {
+      expect(xhr.responseType).toBe('arraybuffer');
+    });
+
+    it('should call .send', () => {
+      expect(xhr.send).toHaveBeenCalled();
+    });
+  });
+
+  describe('renderFile', () => {
+    let container;
+    let loadEvent;
+    let previews;
+
+    beforeEach(() => {
+      loadEvent = { target: { response: {} } };
+      viewer = jasmine.createSpyObj('viewer', ['appendChild']);
+      previews = [document.createElement('ul'), document.createElement('ul')];
+
+      balsamiqViewer = jasmine.createSpyObj('balsamiqViewer', ['initDatabase', 'getPreviews', 'renderPreview']);
+      balsamiqViewer.viewer = viewer;
+
+      balsamiqViewer.getPreviews.and.returnValue(previews);
+      balsamiqViewer.renderPreview.and.callFake(preview => preview);
+      viewer.appendChild.and.callFake((containerElement) => {
+        container = containerElement;
+      });
+
+      BalsamiqViewer.prototype.renderFile.call(balsamiqViewer, loadEvent);
+    });
+
+    it('should call .initDatabase', () => {
+      expect(balsamiqViewer.initDatabase).toHaveBeenCalledWith(loadEvent.target.response);
+    });
+
+    it('should call .getPreviews', () => {
+      expect(balsamiqViewer.getPreviews).toHaveBeenCalled();
+    });
+
+    it('should call .renderPreview for each preview', () => {
+      const allArgs = balsamiqViewer.renderPreview.calls.allArgs();
+
+      expect(allArgs.length).toBe(2);
+
+      previews.forEach((preview, i) => {
+        expect(allArgs[i][0]).toBe(preview);
+      });
+    });
+
+    it('should set the container HTML', () => {
+      expect(container.innerHTML).toBe('<ul></ul><ul></ul>');
+    });
+
+    it('should add inline preview classes', () => {
+      expect(container.classList[0]).toBe('list-inline');
+      expect(container.classList[1]).toBe('previews');
+    });
+
+    it('should call viewer.appendChild', () => {
+      expect(viewer.appendChild).toHaveBeenCalledWith(container);
+    });
+  });
+
+  describe('initDatabase', () => {
+    let database;
+    let uint8Array;
+    let data;
+
+    beforeEach(() => {
+      uint8Array = {};
+      database = {};
+      data = 'data';
+
+      balsamiqViewer = {};
+
+      spyOn(window, 'Uint8Array').and.returnValue(uint8Array);
+      spyOn(sqljs, 'Database').and.returnValue(database);
+
+      BalsamiqViewer.prototype.initDatabase.call(balsamiqViewer, data);
+    });
+
+    it('should instantiate Uint8Array', () => {
+      expect(window.Uint8Array).toHaveBeenCalledWith(data);
+    });
+
+    it('should call sqljs.Database', () => {
+      expect(sqljs.Database).toHaveBeenCalledWith(uint8Array);
+    });
+
+    it('should set .database', () => {
+      expect(balsamiqViewer.database).toBe(database);
+    });
+  });
+
+  describe('getPreviews', () => {
+    let database;
+    let thumbnails;
+    let getPreviews;
+
+    beforeEach(() => {
+      database = jasmine.createSpyObj('database', ['exec']);
+      thumbnails = [{ values: [0, 1, 2] }];
+
+      balsamiqViewer = {
+        database,
+      };
+
+      spyOn(BalsamiqViewer, 'parsePreview').and.callFake(preview => preview.toString());
+      database.exec.and.returnValue(thumbnails);
+
+      getPreviews = BalsamiqViewer.prototype.getPreviews.call(balsamiqViewer);
+    });
+
+    it('should call database.exec', () => {
+      expect(database.exec).toHaveBeenCalledWith('SELECT * FROM thumbnails');
+    });
+
+    it('should call .parsePreview for each value', () => {
+      const allArgs = BalsamiqViewer.parsePreview.calls.allArgs();
+
+      expect(allArgs.length).toBe(3);
+
+      thumbnails[0].values.forEach((value, i) => {
+        expect(allArgs[i][0]).toBe(value);
+      });
+    });
+
+    it('should return an array of parsed values', () => {
+      expect(getPreviews).toEqual(['0', '1', '2']);
+    });
+  });
+
+  describe('getResource', () => {
+    let database;
+    let resourceID;
+    let resource;
+    let getResource;
+
+    beforeEach(() => {
+      database = jasmine.createSpyObj('database', ['exec']);
+      resourceID = 4;
+      resource = ['resource'];
+
+      balsamiqViewer = {
+        database,
+      };
+
+      database.exec.and.returnValue(resource);
+
+      getResource = BalsamiqViewer.prototype.getResource.call(balsamiqViewer, resourceID);
+    });
+
+    it('should call database.exec', () => {
+      expect(database.exec).toHaveBeenCalledWith(`SELECT * FROM resources WHERE id = '${resourceID}'`);
+    });
+
+    it('should return the selected resource', () => {
+      expect(getResource).toBe(resource[0]);
+    });
+  });
+
+  describe('renderPreview', () => {
+    let previewElement;
+    let innerHTML;
+    let preview;
+    let renderPreview;
+
+    beforeEach(() => {
+      innerHTML = '<a>innerHTML</a>';
+      previewElement = {
+        outerHTML: '<p>outerHTML</p>',
+        classList: jasmine.createSpyObj('classList', ['add']),
+      };
+      preview = {};
+
+      balsamiqViewer = jasmine.createSpyObj('balsamiqViewer', ['renderTemplate']);
+
+      spyOn(document, 'createElement').and.returnValue(previewElement);
+      balsamiqViewer.renderTemplate.and.returnValue(innerHTML);
+
+      renderPreview = BalsamiqViewer.prototype.renderPreview.call(balsamiqViewer, preview);
+    });
+
+    it('should call classList.add', () => {
+      expect(previewElement.classList.add).toHaveBeenCalledWith('preview');
+    });
+
+    it('should call .renderTemplate', () => {
+      expect(balsamiqViewer.renderTemplate).toHaveBeenCalledWith(preview);
+    });
+
+    it('should set .innerHTML', () => {
+      expect(previewElement.innerHTML).toBe(innerHTML);
+    });
+
+    it('should return element', () => {
+      expect(renderPreview).toBe(previewElement);
+    });
+  });
+
+  describe('renderTemplate', () => {
+    let preview;
+    let name;
+    let resource;
+    let template;
+    let renderTemplate;
+
+    beforeEach(() => {
+      preview = { resourceID: 1, image: 'image' };
+      name = 'name';
+      resource = 'resource';
+      template = `
+        <div class="panel panel-default">
+          <div class="panel-heading">name</div>
+          <div class="panel-body">
+            <img class="img-thumbnail" src="data:image/png;base64,image"/>
+          </div>
+        </div>
+      `;
+
+      balsamiqViewer = jasmine.createSpyObj('balsamiqViewer', ['getResource']);
+
+      spyOn(BalsamiqViewer, 'parseTitle').and.returnValue(name);
+      balsamiqViewer.getResource.and.returnValue(resource);
+
+      renderTemplate = BalsamiqViewer.prototype.renderTemplate.call(balsamiqViewer, preview);
+    });
+
+    it('should call .getResource', () => {
+      expect(balsamiqViewer.getResource).toHaveBeenCalledWith(preview.resourceID);
+    });
+
+    it('should call .parseTitle', () => {
+      expect(BalsamiqViewer.parseTitle).toHaveBeenCalledWith(resource);
+    });
+
+    it('should return the template string', function () {
+      expect(renderTemplate.replace(/\s/g, '')).toEqual(template.replace(/\s/g, ''));
+    });
+  });
+
+  describe('parsePreview', () => {
+    let preview;
+    let parsePreview;
+
+    beforeEach(() => {
+      preview = ['{}', '{ "id": 1 }'];
+
+      spyOn(JSON, 'parse').and.callThrough();
+
+      parsePreview = BalsamiqViewer.parsePreview(preview);
+    });
+
+    ClassSpecHelper.itShouldBeAStaticMethod(BalsamiqViewer, 'parsePreview');
+
+    it('should return the parsed JSON', () => {
+      expect(parsePreview).toEqual(JSON.parse('{ "id": 1 }'));
+    });
+  });
+
+  describe('parseTitle', () => {
+    let title;
+    let parseTitle;
+
+    beforeEach(() => {
+      title = { values: [['{}', '{}', '{"name":"name"}']] };
+
+      spyOn(JSON, 'parse').and.callThrough();
+
+      parseTitle = BalsamiqViewer.parseTitle(title);
+    });
+
+    ClassSpecHelper.itShouldBeAStaticMethod(BalsamiqViewer, 'parsePreview');
+
+    it('should return the name value', () => {
+      expect(parseTitle).toBe('name');
+    });
+  });
+
+  describe('onError', () => {
+    beforeEach(() => {
+      spyOn(window, 'Flash');
+
+      BalsamiqViewer.onError();
+    });
+
+    ClassSpecHelper.itShouldBeAStaticMethod(BalsamiqViewer, 'onError');
+
+    it('should instantiate Flash', () => {
+      expect(window.Flash).toHaveBeenCalledWith('Balsamiq file could not be loaded.');
+    });
+  });
+});