Fix failing gateway tests with this one simple trick!

test/gateway/index.js

@@ -16,7 +16,8 @@ const directoryContent = {
   'index.html': loadFixture(__dirname, './test-folder/index.html', 'ipfs'),
   'nested-folder/hello.txt': loadFixture(__dirname, './test-folder/nested-folder/hello.txt', 'ipfs'),
   'nested-folder/ipfs.txt': loadFixture(__dirname, './test-folder/nested-folder/ipfs.txt', 'ipfs'),
-  'nested-folder/nested.html': loadFixture(__dirname, './test-folder/nested-folder/nested.html', 'ipfs')
+  'nested-folder/nested.html': loadFixture(__dirname, './test-folder/nested-folder/nested.html', 'ipfs'),
+  'cat-folder/cat.jpg': loadFixture(__dirname, './test-folder/cat-folder/cat.jpg', 'ipfs')
 }
 
 describe('HTTP Gateway', () => {
@@ -38,17 +39,17 @@ describe('HTTP Gateway', () => {
       }
     })
 
+    const content = (name) => ({
+      path: `test-folder/${name}`,
+      content: directoryContent[name]
+    })
+
+    const emptyDir = (name) => ({ path: `test-folder/${name}` })
+
     series([
       (cb) => http.api.start(true, cb),
       (cb) => {
         gateway = http.api.server.select('Gateway')
-        const content = (name) => ({
-          path: `test-folder/${name}`,
-          content: directoryContent[name]
-        })
-
-        const emptyDir = (name) => ({ path: `test-folder/${name}` })
-
         const expectedRootMultihash = 'QmbQD7EMEL1zeebwBsWEfA3ndgSS6F7S6iTuwuqasPgVRi'
 
         const dirs = [
@@ -79,6 +80,32 @@ describe('HTTP Gateway', () => {
           expect(file.hash).to.equal(expectedMultihash)
           cb()
         })
+      },
+      (cb) => {
+        const expectedMultihash = 'QmT78zSuBmuS4z925WZfrqQ1qHaJ56DQaTfyMUF7F8ff5o'
+
+        http.api.node.files.add(Buffer.from('hello world' + '\n'), (err, res) => {
+          expect(err).to.not.exist()
+          const file = res[0]
+          expect(file.path).to.equal(expectedMultihash)
+          expect(file.hash).to.equal(expectedMultihash)
+          cb()
+        })
+      },
+      (cb) => {
+        const expectedMultihash = 'QmW2WQi7j6c7UgJTarActp7tDNikE4B2qXtFCfLPdsgaTQ'
+
+        let dir = [
+          content('cat-folder/cat.jpg')
+        ]
+
+        http.api.node.files.add(dir, (err, res) => {
+          expect(err).to.not.exist()
+          const file = res[1]
+          expect(file.path).to.equal('test-folder/cat-folder')
+          expect(file.hash).to.equal(expectedMultihash)
+          cb()
+        })
       }
     ], done)
   })