Add docblock test for valid line terminators

This test failed before Recast v0.10.31 because Recast did not respect
all valid JavaScript line terminator sequences.

I'm not publishing a new version, reinstalling react-docgen should fix
the issue.

Author: fkling

package.json

@@ -29,7 +29,7 @@
     "babylon": "~5.8.3",
     "node-dir": "^0.1.6",
     "nomnom": "^1.8.1",
-    "recast": "^0.10.17"
+    "recast": "^0.10.31"
   },
   "devDependencies": {
     "babel": "^5.6.23",

src/utils/__tests__/docblock-test.js

@@ -16,10 +16,10 @@ jest
 describe('docblock', () => {
 
   describe('getDoclets', () => {
-    var getDoclets;
+    let getDoclets;
 
     beforeEach(() => {
-      getDoclets = require('../docblock').getDoclets;
+      ({getDoclets} = require('../docblock'));
     });
 
     it('extracts single line doclets', () => {
@@ -38,4 +38,42 @@ describe('docblock', () => {
     });
   });
 
+  describe.only('getDocblock', () => {
+    let comment = ['This is a docblock.', 'This is the second line.'];
+    let source = [
+      '/**',
+      ` * ${comment[0]}`,
+      ` * ${comment[1]}`,
+      ' */',
+      'foo;',
+    ];
+
+    let getDocblock;
+    let statement;
+
+    beforeEach(() => {
+      ({getDocblock} = require('../docblock'));
+      ({statement} = require('../../../tests/utils'));
+    });
+
+    it('gets the closest docblock of the given node', () => {
+      let node = statement(source.join('\n'));
+      expect(getDocblock(node)).toEqual(comment.join('\n'));
+    });
+
+    let terminators = [
+      '\u000A',
+      '\u000D',
+      '\u2028',
+      '\u2029',
+      '\u000D\u000A',
+    ];
+    terminators.forEach(t => {
+      it('can handle ' + escape(t) + ' as line terminator', () => {
+          let node = statement(source.join(t));
+          expect(getDocblock(node)).toEqual(comment.join('\n'));
+      });
+    });
+  });
+
 });