Add GuidGenerator::newStatementId(): StatementGuid

Change-Id: Ib95353da07d38f56df66d3da109904ba04b89063

Author: jakobw

src/Statement/GuidGenerator.php

@@ -37,4 +37,8 @@ public function newGuid( EntityId $entityId ) {
 		return $entityId->getSerialization() . StatementGuid::SEPARATOR . $this->baseGenerator->newGuid();
 	}
 
+	public function newStatementId( EntityId $entityId ): StatementGuid {
+		return new StatementGuid( $entityId, $this->baseGenerator->newGuid() );
+	}
+
 }

tests/unit/Statement/GuidGeneratorTest.php

@@ -27,6 +27,17 @@ public function testGetGuid( EntityId $id ) {
 		$this->assertIsGuidForId( $guidGen->newGuid( $id ), $id );
 	}
 
+	/**
+	 * @dataProvider entityIdProvider
+	 */
+	public function testGetStatementId( EntityId $id ) {
+		$guidGen = new GuidGenerator();
+
+		$this->assertIsGuidForId( (string)$guidGen->newStatementId( $id ), $id );
+		$this->assertIsGuidForId( (string)$guidGen->newStatementId( $id ), $id );
+		$this->assertIsGuidForId( (string)$guidGen->newStatementId( $id ), $id );
+	}
+
 	public function entityIdProvider() {
 		$argLists = [];