test(dynamic-links, e2e): add other platform (OFL) tests

Author: skam22

packages/dynamic-links/e2e/builder.otherplatform.e2e.js

@@ -0,0 +1,31 @@
+const { baseParams } = require('./dynamicLinks.e2e');
+
+describe('dynamicLinks() dynamicLinkParams.otherPlatform', function () {
+  it('throws if otherPlatform is not an object', function () {
+    try {
+      firebase.dynamicLinks().buildLink({
+        ...baseParams,
+        otherPlatform: 123,
+      });
+      return Promise.reject(new Error('Did not throw Error.'));
+    } catch (e) {
+      e.message.should.containEql("'dynamicLinksParams.otherPlatform' must be an object");
+      return Promise.resolve();
+    }
+  });
+
+  it('throws if otherPlatform.fallbackUrl is not a string', function () {
+    try {
+      firebase.dynamicLinks().buildLink({
+        ...baseParams,
+        otherPlatform: {
+          fallbackUrl: 123,
+        },
+      });
+      return Promise.reject(new Error('Did not throw Error.'));
+    } catch (e) {
+      e.message.should.containEql("'dynamicLinksParams.otherPlatform.fallbackUrl' must be a string");
+      return Promise.resolve();
+    }
+  });
+});