test too many/few arguments

Author: staabm

tests/Rules/PHPUnit/DataProviderDataRuleTest.php

@@ -84,6 +84,14 @@ public function testRule(): void
 				'Parameter #2 $input of method DataProviderDataTest\YieldFromTest::myTestMethod() expects string, false given.',
 				116,
 			],
+			[
+				'Method DataProviderDataTest\DifferentArgumentCount::testFoo() invoked with 3 parameters, 2 required.',
+				141,
+			],
+			[
+				'Method DataProviderDataTest\DifferentArgumentCount::testFoo() invoked with 1 parameter, 2 required.',
+				146,
+			],
 		]);
 	}
 

tests/Rules/PHPUnit/data/data-provider-data.php

@@ -121,3 +121,32 @@ public function yieldProvider(): iterable
 	}
 }
 
+class DifferentArgumentCount extends TestCase
+{
+
+	/**
+	 * @dataProvider yieldProvider
+	 */
+	public function testFoo(string $expectedResult, string $input): void
+	{
+	}
+
+	public function yieldProvider(): iterable
+	{
+		yield from [
+			[
+				'Hello World',
+				" Hello World \n",
+			],
+			[
+				'Hello World',
+				'abc',
+				123,
+			],
+			[
+				'Hello World',
+			]
+		];
+	}
+}
+