Add test

tests/src/rules/no-self-import.js

@@ -0,0 +1,42 @@
+import { test, testFilePath } from '../utils'
+
+import { RuleTester } from 'eslint'
+
+const ruleTester = new RuleTester()
+    , rule = require('rules/no-self-import')
+
+const error = {
+  ruleId: 'no-self-import',
+  message: 'Module imports itself',
+}
+
+ruleTester.run('no-self-import', rule, {
+  valid: [
+    test({ code: 'import _ from "lodash"'}),
+    test({ code: 'import find from "lodash.find"'}),
+    test({ code: 'import foo from "./foo"'}),
+    test({ code: 'import foo from "../foo"'}),
+    test({ code: 'import foo from "foo"'}),
+    test({ code: 'import foo from "./"'}),
+    test({ code: 'import foo from "@scope/foo"'}),
+    test({ code: 'var _ = require("lodash")'}),
+    test({ code: 'var find = require("lodash.find")'}),
+    test({ code: 'var foo = require("./foo")'}),
+    test({ code: 'var foo = require("../foo")'}),
+    test({ code: 'var foo = require("foo")'}),
+    test({ code: 'var foo = require("./")'}),
+    test({ code: 'var foo = require("@scope/foo")'}),
+  ],
+  invalid: [
+    test({
+      code: 'import bar from "./bar"',
+      errors: [error],
+      filename: testFilePath('./bar.js'),
+    }),
+    test({
+      code: 'var bar = require("./bar")',
+      errors: [error],
+      filename: testFilePath('./bar.js'),
+    }),
+  ],
+})