allow creating secrets for Steam guard

Author: codemasher

src/Authenticators/SteamGuard.php

@@ -64,14 +64,6 @@ public function getSecret():string{
 		return Base64::encode($this->secret);
 	}
 
-	/**
-	 * @inheritDoc
-	 * @codeCoverageIgnore
-	 */
-	public function createSecret(int|null $length = null):string{
-		throw new RuntimeException('Not implemented');
-	}
-
 	/**
 	 * @inheritDoc
 	 */

tests/Authenticators/SteamGuardTest.php

@@ -19,6 +19,7 @@
 use function date;
 use function dechex;
 use function is_int;
+use function strlen;
 use const PHP_INT_SIZE;
 
 /**
@@ -53,19 +54,26 @@ public function testSetGetSecret():void{
 	}
 
 	public function testCreateSecretDefaultLength():void{
-		$this::markTestSkipped('N/A');
+		$this::assertSame(
+			$this->options->secret_length,
+			strlen(Base64::decode($this->authenticatorInterface->createSecret()))
+		);
 	}
 
 	public function testCreateSecretWithLength():void{
-		$this::markTestSkipped('N/A');
+
+		for($secretLength = 16; $secretLength <= 512; $secretLength += 8){
+			$secret = Base64::decode($this->authenticatorInterface->createSecret($secretLength));
+
+			$this::assertSame($secretLength, strlen($secret));
+		}
+
 	}
 
 	public function testCreateSecretCheckCharacterSet():void{
-		$this::markTestSkipped('N/A');
-	}
+		$secret = $this->authenticatorInterface->createSecret(32);
 
-	public function testCreateSecretException():void{
-		$this::markTestSkipped('N/A');
+		$this::assertMatchesRegularExpression('#^['.Base64::CHARSET.']+$#', $secret);
 	}
 
 	/**