Issue #3154398 by neclimdul, quietone, alexpott: Migrations don't have an accessor for requirements

core/modules/migrate/src/Plugin/Migration.php

@@ -417,6 +417,13 @@ public function getIdMap() {
     return $this->idMapPlugin;
   }
 
+  /**
+   * {@inheritDoc}
+   */
+  public function getRequirements(): array {
+    return $this->requirements;
+  }
+
   /**
    * {@inheritdoc}
    */

core/modules/migrate/src/Plugin/MigrationInterface.php

@@ -103,6 +103,13 @@ public function id();
    */
   public function label();
 
+  /**
+   * Get a list of required plugin IDs.
+   *
+   * @returns string[]
+   */
+  public function getRequirements(): array;
+
   /**
    * Returns the initialized source plugin.
    *

core/modules/migrate/tests/src/Unit/MigrationTest.php

@@ -113,6 +113,19 @@ public function testRequirementsForMigrations() {
     $migration->checkRequirements();
   }
 
+  /**
+   * Tests getting requirement list.
+   *
+   * @covers ::getRequirements
+   */
+  public function testGetMigrations() {
+    $migration = new TestMigration();
+
+    $requirements = ['test_a', 'test_b', 'test_c', 'test_d'];
+    $migration->setRequirements($requirements);
+    $this->assertArrayEquals($requirements, $migration->getRequirements());
+  }
+
   /**
    * Tests valid migration dependencies configuration returns expected values.
    *