add renamed empty file test

Author: yeonjuan

src/__fixtures__/renamed-empty

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+diff --git a/src/empty b/src/renamed-empty
+similarity index 100%
+rename from src/empty
+rename to src/renamed-empty

src/__tests__/__snapshots__/renamed-empty.test.ts.snap

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+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`renamed-empty parse \`renamed-empty\` 1`] = `
+{
+  "files": [
+    {
+      "chunks": [],
+      "pathAfter": "src/renamed-empty",
+      "pathBefore": "src/empty",
+      "type": "RenamedFile",
+    },
+  ],
+  "type": "GitDiff",
+}
+`;

src/__tests__/renamed-empty-file.test.ts

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+import { getFixture } from './test-utils';
+import parseGitDiff from '../parse-git-diff';
+
+describe('renamed-empty', () => {
+  const fixture = getFixture('renamed-empty');
+
+  it('parse `renamed-empty`', () => {
+    expect(parseGitDiff(fixture)).toMatchSnapshot();
+  });
+});

src/__tests__/renamed-empty.test.ts

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+import { getFixture } from './test-utils';
+import parseGitDiff from '../parse-git-diff';
+
+describe('renamed-empty', () => {
+  const fixture = getFixture('renamed-empty');
+
+  it('parse `renamed-empty`', () => {
+    expect(parseGitDiff(fixture)).toMatchSnapshot();
+  });
+});