feat: mashable parser (#76)

* feat: mashable parser

As usual the date is giving me issues because of formatting
discrepancies:
AssertionError: '2016-12-13T22:33:06.000Z' == '2016-12-14T03:33:06.000Z'

Not sure how we wanna deal with Twitter card embeds that don’t show up?

Also, image credits did not show up in preview.

* test: fixed date format

* transforming .image-credit to figcaption

src/extractors/custom/index.js

@@ -29,6 +29,7 @@ export * from './www.theguardian.com';
 export * from './www.sbnation.com';
 export * from './www.bloomberg.com';
 export * from './www.bustle.com';
+export * from './mashable.com';
 export * from './www.chicagotribune.com';
 export * from './www.vox.com';
 export * from './www.cnbc.com';

src/extractors/custom/mashable.com/index.js

@@ -0,0 +1,46 @@
+export const MashableComExtractor = {
+  domain: 'mashable.com',
+
+  title: {
+    selectors: [
+      'h1.title',
+    ],
+  },
+
+  author: {
+    selectors: [
+      'span.author_name a',
+    ],
+  },
+
+  date_published: {
+    selectors: [
+      ['meta[name="og:article:published_time"]', 'value'],
+    ],
+  },
+
+  lead_image_url: {
+    selectors: [
+      ['meta[name="og:image"]', 'value'],
+    ],
+  },
+
+  content: {
+    selectors: [
+      'section.article-content.blueprint',
+    ],
+
+    // Is there anything in the content you selected that needs transformed
+    // before it's consumable content? E.g., unusual lazy loaded images
+    transforms: {
+      '.image-credit': 'figcaption',
+    },
+
+    // Is there anything that is in the result that shouldn't be?
+    // The clean selectors will remove anything that matches from
+    // the result
+    clean: [
+
+    ],
+  },
+};

src/extractors/custom/mashable.com/index.test.js

@@ -0,0 +1,87 @@
+import assert from 'assert';
+import fs from 'fs';
+import URL from 'url';
+import cheerio from 'cheerio';
+
+import Mercury from 'mercury';
+import getExtractor from 'extractors/get-extractor';
+import { excerptContent } from 'utils/text';
+
+describe('MashableComExtractor', () => {
+  describe('initial test case', () => {
+    let result;
+    let url;
+    beforeAll(() => {
+      url =
+        'http://mashable.com/2016/12/13/mysterious-plane-flying-over-new-york/?utm_cid=hp-n-1#sxBI1HiPKsqG';
+      const html =
+        fs.readFileSync('./fixtures/mashable.com/1481670648585.html');
+      result =
+        Mercury.parse(url, html, { fallback: false });
+    });
+
+    it('is selected properly', () => {
+      // This test should be passing by default.
+      // It sanity checks that the correct parser
+      // is being selected for URLs from this domain
+      const extractor = getExtractor(url);
+      assert.equal(extractor.domain, URL.parse(url).hostname);
+    });
+
+    it('returns the title', async () => {
+    // To pass this test, fill out the title selector
+    // in ./src/extractors/custom/mashable.com/index.js.
+      const { title } = await result;
+
+    // Update these values with the expected values from
+    // the article.
+      assert.equal(title, 'Mysterious plane circling Manhattan sparks concern and intrigue');
+    });
+
+    it('returns the author', async () => {
+    // To pass this test, fill out the author selector
+    // in ./src/extractors/custom/mashable.com/index.js.
+      const { author } = await result;
+
+    // Update these values with the expected values from
+    // the article.
+      assert.equal(author, 'Nicole Gallucci');
+    });
+
+    it('returns the date_published', async () => {
+    // To pass this test, fill out the date_published selector
+    // in ./src/extractors/custom/mashable.com/index.js.
+      const { date_published } = await result;
+
+    // Update these values with the expected values from
+    // the article.
+      assert.equal(date_published, '2016-12-13T22:33:06.000Z');
+    });
+
+    it('returns the lead_image_url', async () => {
+    // To pass this test, fill out the lead_image_url selector
+    // in ./src/extractors/custom/mashable.com/index.js.
+      const { lead_image_url } = await result;
+
+    // Update these values with the expected values from
+    // the article.
+      assert.equal(lead_image_url, 'http://a.amz.mshcdn.com/media/ZgkyMDE2LzEyLzEzL2UxL2xpbGlzYW1zbWFzaGFibGU1XzcyMC4wMWZkOS5qcGcKcAl0aHVtYgkxMjAweDYzMAplCWpwZw/29e123a7/0e0/lili-sams-mashable-5_720.jpg');
+    });
+
+    it('returns the content', async () => {
+      // To pass this test, fill out the content selector
+      // in ./src/extractors/custom/mashable.com/index.js.
+      // You may also want to make use of the clean and transform
+      // options.
+      const { content } = await result;
+
+      const $ = cheerio.load(content || '');
+
+      const first13 = excerptContent($('*').first().text(), 13);
+
+      // Update these values with the expected values from
+      // the article.
+      assert.equal(first13, 'A large military-style plane, which looked remarkably like a C-130, circled Manhattan for');
+    });
+  });
+});