Add coverage in Travis

Author: kylekatarnls

.travis.yml

@@ -17,7 +17,7 @@ before_script:
   - ./cc-test-reporter before-build
 
 script:
-  - vendor/bin/phpunit
+  - vendor/bin/phpunit --coverage-clover=coverage.xml --coverage-text
 
 after_success:
   - bash <(curl -s https://codecov.io/bash)

tests/Carbon/CliTest.php

@@ -20,4 +20,12 @@ public function testGetCommands()
             'macro' => Macro::class,
         ], (new Cli())->getCommands());
     }
+
+    /**
+     * @covers ::getPackageName
+     */
+    public function testGetPackageName()
+    {
+        $this->assertSame('nesbot/carbon', (new Cli())->getPackageName());
+    }
 }