Send email via Parse.Cloud.sendEmail (#7096)

* initial

* more tests

* Update CHANGELOG.md

* review

* log on error

* change logger to error

* rename

* Update Parse.Cloud.js

spec/CloudCode.spec.js

@@ -3168,3 +3168,29 @@ describe('afterLogin hook', () => {
     await query.find({ context: { a: 'a' } });
   });
 });
+
+describe('sendEmail', () => {
+  it('can send email via Parse.Cloud', async done => {
+    const emailAdapter = {
+      sendMail: mailData => {
+        expect(mailData).toBeDefined();
+        expect(mailData.to).toBe('test');
+        done();
+      },
+    };
+    await reconfigureServer({
+      emailAdapter: emailAdapter,
+    });
+    const mailData = { to: 'test' };
+    await Parse.Cloud.sendEmail(mailData);
+  });
+
+  it('cannot send email without adapter', async () => {
+    const logger = require('../lib/logger').logger;
+    spyOn(logger, 'error').and.callFake(() => {});
+    await Parse.Cloud.sendEmail({});
+    expect(logger.error).toHaveBeenCalledWith(
+      'Failed to send email because no mail adapter is configured for Parse Server.'
+    );
+  });
+});