more tests

Author: staabm

tests/PHPStan/Rules/Arrays/DuplicateKeysInLiteralArraysRuleTest.php

@@ -89,6 +89,10 @@ public function testDuplicateKeys(): void
 				"Array has 2 duplicate keys with value 'bar' ('bar', \$key).",
 				152,
 			],
+			[
+				"Array has 2 duplicate keys with value 'baz' (\$key, 'baz').",
+				171,
+			],
 		]);
 	}
 

tests/PHPStan/Rules/Arrays/data/duplicate-keys.php

@@ -154,4 +154,22 @@ public function sureDuplicate3(string $key): void
 		];
 	}
 
+	/**
+	 * @param 'foo'|'bar'|'baz' $key
+	 */
+	public function sureDuplicate4(string $key): void
+	{
+		$a = [
+			'foo' => 'foo',
+			'bar' => 'bar',
+			$key => 'foo|bar',
+		];
+
+		$b = [
+			'foo' => 'foo',
+			'bar' => 'bar',
+			$key => 'foo|bar',
+			'baz' => 'baz',
+		];
+	}
 }