Merge pull request react-bootstrap#880 from react-bootstrap/coverage-src-all

Ensure all src folder js files are loaded for full code coverage analysis

Author: mtscout6

test/index.js

@@ -19,5 +19,9 @@ describe('Process environment for tests', function () {
   });
 });
 
+// Ensure all files in src folder are loaded for proper code coverage analysis
+const srcContext = require.context('../src', true, /.*\.js$/);
+srcContext.keys().forEach(srcContext);
+
 const testsContext = require.context('.', true, /Spec$/);
 testsContext.keys().forEach(testsContext);