add test script using chakram.

__tests__/issues494.chakram.spec.js

@@ -0,0 +1,30 @@
+const chakram = require('chakram'),
+      expect = chakram.expect;
+const path = require('path');
+const fs = require('fs');
+
+let importCsvApi = 'http://localhost:10011/importcsv';
+let sessionToken = 'aaaa';
+
+const contentPath = path.resolve(__dirname, './order.csv');
+let content = fs.createReadStream(contentPath);
+
+it('issues 494 using chakram', () => {
+    let response = chakram.post(importCsvApi, undefined, {
+        headers: {
+            'Authorization': sessionToken,
+            'content-type': 'multipart/form-data'
+        },
+        formData: {
+            file: {
+                value: content,
+                options: {
+                    filename: contentPath,
+                    contentType: null
+                }
+            }
+        }
+    });
+    expect(response).to.have.status(200);
+    return chakram.wait();
+});