✅ test: add snapshots

Author: kazupon

.gitignore

@@ -1,7 +1,6 @@
 coverage
 node_modules
 .DS_Store
-__snapshots__
 *.log
 *.swp
 *~

.npmignore

@@ -3,4 +3,5 @@
 *.swp
 *.yml
 coverage
+__snapshots__
 test

test/__snapshots__/index.test.js.snap

@@ -0,0 +1,26 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`basic 1`] = `
+Array [
+  "{\\"en\\":{\\"hello\\":\\"hello world!\\"}}",
+]
+`;
+
+exports[`import 1`] = `
+Array [
+  "{\\"en\\":{\\"hello\\":\\"hello world!\\"}}",
+]
+`;
+
+exports[`multiple 1`] = `
+Array [
+  "{\\"en\\":{\\"hello\\":\\"hello world!\\"}}",
+  "{\\"ja\\":{\\"hello\\":\\"こんにちは、世界！\\"}}",
+]
+`;
+
+exports[`special characters 1`] = `
+Array [
+  "{\\"en\\":{\\"hello\\":\\"hello\\\\ngreat\\\\t\\\\\\"world\\\\\\"\\"}}",
+]
+`;