test: Google embeds (#1202)

Update slides to only embed pub links

app/embeds/GoogleDocs.test.js

@@ -0,0 +1,31 @@
+/* eslint-disable flowtype/require-valid-file-annotation */
+import embeds from '.';
+
+const { GoogleDocs } = embeds;
+
+describe('GoogleDocs', () => {
+  const match = GoogleDocs.ENABLED[0];
+  test('to be enabled on share link', () => {
+    expect(
+      'https://docs.google.com/document/d/e/2PACX-1vTdddHPoZ5M_47wmSHCoigRIt2cj_Pd-kgtaNQY6H0Jzn0_CVGbxC1GcK5IoNzU615lzguexFwxasAW/pubhtml'.match(
+        match
+      )
+    ).toBeTruthy();
+    expect(
+      'https://docs.google.com/document/d/e/2PACX-1vTdddHPoZ5M_47wmSHCoigRIt2cj_Pd-kgtaNQY6H0Jzn0_CVGbxC1GcK5IoNzU615lzguexFwxasAW/pub'.match(
+        match
+      )
+    ).toBeTruthy();
+  });
+
+  test('to not be enabled elsewhere', () => {
+    expect(
+      'https://docs.google.com/document/d/e/2PACX-1vTdddHPoZ5M_47wmSHCoigR/edit'.match(
+        match
+      )
+    ).toBe(null);
+    expect('https://docs.google.com/document'.match(match)).toBe(null);
+    expect('https://docs.google.com'.match(match)).toBe(null);
+    expect('https://www.google.com'.match(match)).toBe(null);
+  });
+});