Test BcMath\Number unary operations

Author: mpesari

tests/PHPStan/Rules/Operators/InvalidIncDecOperationRuleTest.php

@@ -234,4 +234,27 @@ public function testIncNonNumericString(): void
 		$this->analyse([__DIR__ . '/data/inc-non-numeric-string.php'], $errors);
 	}
 
+	#[RequiresPhp('>= 8.5')]
+	public function testBcMathNumber(): void
+	{
+		$this->analyse([__DIR__ . '/data/inc-dec-bcmath-number.php'], [
+			[
+				'Cannot use ++ on BcMath\Number.',
+				9,
+			],
+			[
+				'Cannot use ++ on BcMath\Number.',
+				10,
+			],
+			[
+				'Cannot use -- on BcMath\Number.',
+				11,
+			],
+			[
+				'Cannot use -- on BcMath\Number.',
+				12,
+			],
+		]);
+	}
+
 }

tests/PHPStan/Rules/Operators/InvalidUnaryOperationRuleTest.php

@@ -169,4 +169,23 @@ public function testUnion(): void
 		]);
 	}
 
+	#[RequiresPhp('>= 8.5')]
+	public function testBcMathNumber(): void
+	{
+		$this->analyse([__DIR__ . '/data/unary-bcmath-number.php'], [
+			[
+				'Unary operation "+" on BcMath\Number results in an error.',
+				9,
+			],
+			[
+				'Unary operation "-" on BcMath\Number results in an error.',
+				10,
+			],
+			[
+				'Unary operation "~" on BcMath\Number results in an error.',
+				11,
+			],
+		]);
+	}
+
 }

tests/PHPStan/Rules/Operators/data/inc-dec-bcmath-number.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace IncDecBcMathNumber;
+
+use BcMath\Number;
+
+function test(Number $x): void
+{
+	++$x;
+	$x++;
+	$x--;
+	--$x;
+}

tests/PHPStan/Rules/Operators/data/unary-bcmath-number.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace BcMathNumberUnaryOperators;
+
+use BcMath\Number;
+
+function test(Number $x): void
+{
+	+$x;
+	-$x;
+	~$x;
+}