From ca108bdca5419d78a83db0e2fa8357e410dbca15 Mon Sep 17 00:00:00 2001
From: Vladislav Rassokhin <vladislav.rassokhin@jetbrains.com>
Date: Mon, 31 Jul 2023 18:49:01 +0200
Subject: [PATCH] [test framework] Retry failed tests filter: empty filter file
 should be ignored

GitOrigin-RevId: 9b36d5a6ac349253999ed8920cfc75db32280961
---
 .../testFramework/core/src/com/intellij/TestCaseLoader.java   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/platform/testFramework/core/src/com/intellij/TestCaseLoader.java b/platform/testFramework/core/src/com/intellij/TestCaseLoader.java
index 19d5f1f6821e..8849f7df30f3 100644
--- a/platform/testFramework/core/src/com/intellij/TestCaseLoader.java
+++ b/platform/testFramework/core/src/com/intellij/TestCaseLoader.java
@@ -211,9 +211,11 @@ public class TestCaseLoader {
     return null;
   }
 
-  private static @NotNull TestClassesFilter loadTestsFilterFromFile(Path path, boolean linesArePatterns) {
+  private static @Nullable TestClassesFilter loadTestsFilterFromFile(Path path, boolean linesArePatterns) {
     try {
       List<String> lines = Files.readAllLines(path);
+      if (lines.isEmpty()) return null;
+      if (ContainerUtil.and(lines, String::isBlank)) return null;
       return linesArePatterns ? new PatternListTestClassFilter(lines) : new NameListTestClassFilter(lines);
     }
     catch (IOException e) {