Configuration:

Firefox 50.1.0

Apache Maven 3.2.1

Java version: 1.8.0_111

Execute next lines to launch test:

cd /path/to/project/

mvn test -Dtest=Runner

Note:

Gmail periodically generates new ids and classes of elements at the opened letter (sender email, subject, content). if steps for opened letter are failed need to change locators to the correct in ru.crystals.test.ui.pages.GmailInboxLetterPage.java file