Add tests for CLI errors.

features/backup_plan_cli_delete.feature

@@ -15,4 +15,16 @@ Feature: Deleting a backup plan with the CLI
       | plans remove one -i 8aa59e7e-dc75-459b-beb5-b710b39be583 | 8aa59e7e-dc75-459b-beb5-b710b39be583 | success | delete an existing plan    |
       | plans remove one -i 8aa59e7e-dc75-459b-aeb5-b710b39be583 | 8aa59e7e-dc75-459b-beb5-b710b39be512 | error   | delete a non-existing plan |
 
+  @fixture.injector
+  @fixture.in_memory_database
+  @fixture.cli
+  Scenario Outline: Delete non-existing backup plan with the CLI
+    Given the CLI arguments are "<arguments>"
+    When I run the CLI
+    Then the CLI executed with "<result>"
+    And the CLI contains the error: "<result_error>"
+
+    Examples:
+      | arguments                                                | result | result_error                                                        | description                |
+      | plans remove one -i 8aa59e7e-dc75-459b-aeb5-b710b39be583 | error  | [ERROR] Failed to delete the backup plan, because it doesn't exist. | delete a non-existing plan |
 

features/backup_plan_cli_show.feature

@@ -15,6 +15,19 @@ Feature: Show a backup plan with the CLI
       | plans show one -i 8aa59e7e-dc75-459b-beb5-b710b39be583 | 8aa59e7e-dc75-459b-beb5-b710b39be583 | success | show an existing plan    |
       | plans show one -i 8aa59e7e-dc75-459b-aeb5-b710b39be583 | 8aa59e7e-dc75-459b-beb5-b710b39be512 | error   | show a non-existing plan |
 
+  @fixture.injector
+  @fixture.in_memory_database
+  @fixture.cli
+  Scenario Outline: Show non-existing backup plans with the CLI
+    Given the CLI arguments are "<arguments>"
+    When I run the CLI
+    Then the CLI executed with "<result>"
+    And the CLI contains the error: "<result_error>"
+
+    Examples:
+      | arguments                                              | result | result_error                           | description              |
+      | plans show one -i 8aa59e7e-dc75-459b-aeb5-b710b39be583 | error  | [ERROR] The backup plan was not found. | show a non-existing plan |
+
   @fixture.injector
   @fixture.in_memory_database
   @fixture.cli