Start the cold run of the warm-rewrite test in a new second

A file modified in the second the analysis starts gets no stat
signature. When the cold run started in the second setUp() wrote the
files, the warm run recorded the signatures and rewrote the result
cache, so testWarmAnalysisDoesNotRewriteUnchangedResultCache failed.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

Author: 2 people

tests/PHPStan/Command/ResultCacheInfoCommandTest.php

@@ -18,8 +18,10 @@
 use function md5;
 use function sprintf;
 use function sys_get_temp_dir;
+use function time;
 use function touch;
 use function uniqid;
+use function usleep;
 use const PHP_BINARY;
 
 #[Group('exec')]
@@ -146,6 +148,11 @@ public function testChangedFileIsCountedAsFileToAnalyse(): void
 
 	public function testWarmAnalysisDoesNotRewriteUnchangedResultCache(): void
 	{
+		// a file modified in the second the analysis starts gets no stat signature, so a cold run in
+		// the second setUp() wrote the files records none, and the warm run rewrites the cache to
+		// record them
+		$this->waitForNextSecond();
+
 		[$analyseOutput, $analyseExitCode] = $this->runPhpstan(['analyse', '--no-progress']);
 		$this->assertSame(0, $analyseExitCode, $analyseOutput);
 
@@ -210,6 +217,14 @@ public function testHumanReadableOutput(): void
 		$this->assertStringContainsString('0 out of 2 files will be analysed.', $output);
 	}
 
+	private function waitForNextSecond(): void
+	{
+		$second = time();
+		while (time() === $second) {
+			usleep(10_000);
+		}
+	}
+
 	/**
 	 * @param string[] $args
 	 * @return array{string, int}