migrate more tests to jest

tests/dataApi/createSnippet.test.js

@@ -0,0 +1,32 @@
+const createSnippet = require('browser/main/lib/dataApi/createSnippet')
+const sander = require('sander')
+const os = require('os')
+const path = require('path')
+
+const snippetFilePath = path.join(os.tmpdir(), 'test', 'create-snippet')
+const snippetFile = path.join(snippetFilePath, 'snippets.json')
+
+beforeEach(() => {
+  sander.writeFileSync(snippetFile, '[]')
+})
+
+it('Create a snippet', () => {
+  return Promise.resolve()
+    .then(() => Promise.all([createSnippet(snippetFile)]))
+    .then(function assert(data) {
+      data = data[0]
+      const snippets = JSON.parse(sander.readFileSync(snippetFile))
+      const snippet = snippets.find(
+        currentSnippet => currentSnippet.id === data.id
+      )
+      expect(snippet).not.toBeUndefined()
+      expect(snippet.name).toEqual(data.name)
+      expect(snippet.prefix).toEqual(data.prefix)
+      expect(snippet.content).toEqual(data.content)
+      expect(snippet.linesHighlighted).toEqual(data.linesHighlighted)
+    })
+})
+
+afterAll(() => {
+  sander.rimrafSync(snippetFilePath)
+})