diff --git a/package.json b/package.json
index 7bba9c8..3de7afe 100644
--- a/package.json
+++ b/package.json
@@ -60,6 +60,12 @@
     "mkdirp": "^0.5.1",
     "yeoman-generator": "^1.1.1"
   },
+  "jest": {
+    "testPathIgnorePatterns": [
+      "/node_modules/",
+      "/app/src/templates/src/"
+    ]
+  },
   "config": {
     "commitizen": {
       "path": "cz-conventional-changelog"
diff --git a/src/app/index.js b/src/app/index.js
index d044ed1..54d54ac 100644
--- a/src/app/index.js
+++ b/src/app/index.js
@@ -14,6 +14,13 @@ function makeGeneratorName(name) {
   name = name.indexOf(PLUGIN_PREFIX) === 0 ? name : PLUGIN_PREFIX + name
   return name
 }
+
+function makePluginFunctionName(name) {
+  const functionName = _.camelCase(
+    name.substring(PLUGIN_PREFIX.length, name.length)
+  )
+  return `${functionName}()`
+}
 export default class extends Generator {
   initializing() {
     this.props = {}
@@ -118,6 +125,18 @@ export default class extends Generator {
     )
 
     this.fs.copy(this.templatePath('babelrc'), this.destinationPath('.babelrc'))
+
+    this.fs.copyTpl(
+      this.templatePath('src/index'),
+      this.destinationPath('src/index.js'),
+      { pluginFunctionName: makePluginFunctionName(this.props.pluginName) }
+    )
+
+    this.fs.copyTpl(
+      this.templatePath('src/index.test'),
+      this.destinationPath('src/index.test.js'),
+      { pluginFunctionName: makePluginFunctionName(this.props.pluginName) }
+    )
   }
 
   install() {
diff --git a/src/app/index.test.js b/src/app/index.test.js
index 611ba7d..6280df1 100644
--- a/src/app/index.test.js
+++ b/src/app/index.test.js
@@ -30,8 +30,30 @@ describe('generator:app', () => {
       '.gitignore',
       '.npmignore',
       '.esdoc.json',
+      'src/index.js',
+      'src/index.test.js',
     ])
   })
+  describe('src/', () => {
+    it('generates source file based on plugin name', async () => {
+      await helpers.run(__dirname).withPrompts({
+        pluginName: 'danger-plugin-fun-time',
+        description: 'Danger plugin that tells you to have a fun time',
+        authorName: 'Macklin Underdown',
+        authorEmail: 'email@example.com',
+      })
+      assert.fileContent('src/index.js', 'funTime()')
+    })
+    it('generates source file based on plugin name', async () => {
+      await helpers.run(__dirname).withPrompts({
+        pluginName: 'danger-plugin-fun-time',
+        description: 'Danger plugin that tells you to have a fun time',
+        authorName: 'Macklin Underdown',
+        authorEmail: 'email@example.com',
+      })
+      assert.fileContent('src/index.test.js', 'funTime()')
+    })
+  })
   describe('CODE_OF_CONDUCT.md', () => {
     it('contains author email', async () => {
       await helpers.run(__dirname).withPrompts({
diff --git a/src/app/templates/src/index b/src/app/templates/src/index
new file mode 100644
index 0000000..3a7c5b5
--- /dev/null
+++ b/src/app/templates/src/index
@@ -0,0 +1,3 @@
+export default function <%= pluginFunctionName %> {
+
+}
diff --git a/src/app/templates/src/index.test b/src/app/templates/src/index.test
new file mode 100644
index 0000000..d0950a1
--- /dev/null
+++ b/src/app/templates/src/index.test
@@ -0,0 +1,3 @@
+describe('<%= pluginFunctionName %>', () => {
+  it('does something')
+})