From b74bc547c46f21ea065d93afdf59a3ebba03bc4e Mon Sep 17 00:00:00 2001
From: nik <Nikolay.Chashnikov@jetbrains.com>
Date: Tue, 29 Sep 2015 18:33:30 +0300
Subject: [PATCH] ignore empty idea.test.patterns property to simplify build
 scripts

---
 platform/testFramework/src/com/intellij/TestCaseLoader.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/platform/testFramework/src/com/intellij/TestCaseLoader.java b/platform/testFramework/src/com/intellij/TestCaseLoader.java
index 376a08b8bc63..505f3320b739 100644
--- a/platform/testFramework/src/com/intellij/TestCaseLoader.java
+++ b/platform/testFramework/src/com/intellij/TestCaseLoader.java
@@ -65,7 +65,7 @@ public class TestCaseLoader {
   public TestCaseLoader(String classFilterName, boolean forceLoadPerformanceTests) {
     myForceLoadPerformanceTests = forceLoadPerformanceTests;
     String patterns = System.getProperty(TARGET_TEST_PATTERNS);
-    if (patterns != null) {
+    if (!StringUtil.isEmpty(patterns)) {
       myTestClassesFilter = new PatternListTestClassFilter(StringUtil.split(patterns, ";"));
       System.out.println("Using patterns: [" + patterns +"]");
     }