Add validation for plugin names and tests for --minor/--patch incompatibility

Co-authored-by: swissspidy <841956+swissspidy@users.noreply.github.com>

Author: Copilot

features/plugin-update.feature

@@ -310,6 +310,39 @@ Feature: Update WordPress plugins
       """
     And the return code should be 1
 
+  @require-wp-5.2
+  Scenario: Error when using --minor with --auto-update-indicated
+    Given a WP install
+
+    When I try `wp plugin update --auto-update-indicated --minor`
+    Then STDERR should be:
+      """
+      Error: Cannot use --minor or --patch with --auto-update-indicated. The version is determined by the server.
+      """
+    And the return code should be 1
+
+  @require-wp-5.2
+  Scenario: Error when using --patch with --auto-update-indicated
+    Given a WP install
+
+    When I try `wp plugin update --auto-update-indicated --patch`
+    Then STDERR should be:
+      """
+      Error: Cannot use --minor or --patch with --auto-update-indicated. The version is determined by the server.
+      """
+    And the return code should be 1
+
+  @require-wp-5.2
+  Scenario: Error when specifying plugin names with --auto-update-indicated
+    Given a WP install
+
+    When I try `wp plugin update akismet --auto-update-indicated`
+    Then STDERR should be:
+      """
+      Error: Cannot specify plugin names with --auto-update-indicated. This flag updates all plugins with server-indicated automatic updates.
+      """
+    And the return code should be 1
+
   @require-wp-5.2
   Scenario: Preview updates with --auto-update-indicated and --dry-run
     Given a WP install

src/Plugin_Command.php

@@ -772,6 +772,12 @@ public function update( $args, $assoc_args ) {
 		if ( $auto_update_indicated && ( isset( $assoc_args['minor'] ) || isset( $assoc_args['patch'] ) ) ) {
 			WP_CLI::error( 'Cannot use --minor or --patch with --auto-update-indicated. The version is determined by the server.' );
 		}
+
+		// Don't allow plugin names to be specified with --auto-update-indicated.
+		if ( $auto_update_indicated && ! empty( $args ) ) {
+			WP_CLI::error( 'Cannot specify plugin names with --auto-update-indicated. This flag updates all plugins with server-indicated automatic updates.' );
+		}
+
 		// If --auto-update-indicated is set, we need to filter plugins by this flag.
 		if ( $auto_update_indicated ) {
 			// Get all plugins with their update info.