Upgrade to Gatsby v2

src/templates/index-template.test.js

@@ -0,0 +1,56 @@
+import React from 'react';
+import renderer from 'react-test-renderer';
+import IndexTemplate from './index-template';
+
+describe('IndexTemplate', () => {
+  const props = {
+    data: {
+      allMarkdownRemark: {
+        edges: [
+          {
+            node: {
+              fields: {
+                slug: '/test_0',
+                categorySlug: '/test_0'
+              },
+              frontmatter: {
+                date: '2016-09-01T23:46:37.121Z',
+                description: 'test_0',
+                category: 'test_0',
+                title: 'test_0'
+              }
+            }
+          },
+          {
+            node: {
+              fields: {
+                slug: '/test_1',
+                categorySlug: '/test_1'
+              },
+              frontmatter: {
+                date: '2016-09-01T23:46:37.121Z',
+                description: 'test_1',
+                category: 'test_1',
+                title: 'test_1'
+              }
+            }
+          }
+        ]
+      },
+      site: {
+        siteMetadata: {
+          title: 'test',
+          subtitle: 'test'
+        }
+      }
+    },
+    pageContext: {
+      page: 1
+    }
+  };
+
+  it('renders correctly', () => {
+    const tree = renderer.create(<IndexTemplate {...props} />).toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+});