Improve test coverage.

app/Mail/AccessTokenCreatedMail.php

@@ -30,6 +30,7 @@ use Illuminate\Queue\SerializesModels;
 
 /**
  * Class AccessTokenCreatedMail
+ * @codeCoverageIgnore
  */
 class AccessTokenCreatedMail extends Mailable
 {

app/Mail/AdminTestMail.php

@@ -30,6 +30,7 @@ use Illuminate\Queue\SerializesModels;
  * Class AdminTestMail.
  *
  * Sends a test mail to administrators.
+ * @codeCoverageIgnore
  */
 class AdminTestMail extends Mailable
 {

app/Mail/ConfirmEmailChangeMail.php

@@ -30,6 +30,7 @@ use Illuminate\Queue\SerializesModels;
  * Class ConfirmEmailChangeMail
  *
  * Sends message to new address to confirm change.
+ * @codeCoverageIgnore
  */
 class ConfirmEmailChangeMail extends Mailable
 {

app/Mail/OAuthTokenCreatedMail.php

@@ -31,6 +31,7 @@ use Laravel\Passport\Client;
 
 /**
  * Class OAuthTokenCreatedMail
+ * @codeCoverageIgnore
  */
 class OAuthTokenCreatedMail extends Mailable
 {

app/Mail/RegisteredUser.php

@@ -31,6 +31,7 @@ use Illuminate\Queue\SerializesModels;
  * Sends newly registered user an email message.
  *
  * Class RegisteredUser
+ * @codeCoverageIgnore
  */
 class RegisteredUser extends Mailable
 {

app/Mail/ReportNewJournalsMail.php

@@ -31,6 +31,7 @@ use Illuminate\Support\Collection;
  * Class ReportNewJournalsMail.
  *
  * Sends a list of newly created journals to the user.
+ * @codeCoverageIgnore
  */
 class ReportNewJournalsMail extends Mailable
 {

app/Mail/RequestedNewPassword.php

@@ -30,6 +30,7 @@ use Illuminate\Queue\SerializesModels;
 /**
  * Sends user link for new password.
  * Class RequestedNewPassword
+ * @codeCoverageIgnore
  */
 class RequestedNewPassword extends Mailable
 {

app/Mail/UndoEmailChangeMail.php

@@ -28,6 +28,7 @@ use Illuminate\Queue\SerializesModels;
 
 /**
  * Class UndoEmailChangeMail
+ * @codeCoverageIgnore
  */
 class UndoEmailChangeMail extends Mailable
 {