Renamed some tests and test parameters for clarity, and adhere to Go conventions (#74)

Author: hiranya911

firebase_test.go

@@ -15,6 +15,7 @@
 package firebase
 
 import (
+	"fmt"
 	"io/ioutil"
 	"log"
 	"net/http"
@@ -546,6 +547,15 @@ func TestAutoInit(t *testing.T) {
 		} else {
 			compareConfig(app, test.wantOptions, t)
 		}
+		t.Run(fmt.Sprintf("NewApp(%s)", test.name), func(t *testing.T) {
+			overwriteEnv(firebaseEnvName, test.optionsConfig)
+			app, err := NewApp(context.Background(), test.initOptions)
+			if err != nil {
+				t.Error(err)
+			} else {
+				compareConfig(app, test.wantOptions, t)
+			}
+		})
 	}
 }