add coverage

tests/phpunit/src/Commands/Auth/AuthLogoutCommandTest.php

@@ -8,6 +8,7 @@
 use Acquia\Cli\Command\CommandBase;
 use Acquia\Cli\Config\CloudDataConfig;
 use Acquia\Cli\DataStore\CloudDataStore;
+use Acquia\Cli\Exception\AcquiaCliException;
 use Acquia\Cli\Tests\CommandTestBase;
 
 /**
@@ -31,4 +32,25 @@ public function testAuthLogoutCommand(): void {
     $this->assertStringContainsString('The active Cloud Platform API credentials were deactivated', $output);
   }
 
+  public function testAuthLogoutInvalidDatastore(): void {
+    $this->clientServiceProphecy->isMachineAuthenticated()->willReturn(FALSE);
+    $this->removeMockCloudConfigFile();
+    $data = [
+      'acli_key' => 'key2',
+      'keys' => [
+        'key1' => [
+          'label' => 'foo',
+          'secret' => 'foo',
+          'uuid' => 'foo',
+        ],
+      ],
+    ];
+    $this->fs->dumpFile($this->cloudConfigFilepath, json_encode($data));
+    $this->createDataStores();
+    $this->command = $this->createCommand();
+    $this->expectException(AcquiaCliException::class);
+    $this->expectExceptionMessage("Invalid key in datastore at $this->cloudConfigFilepath");
+    $this->executeCommand();
+  }
+
 }