junit: ensure test failure name is passed even for too long truncated lines

plugins/junit/test/com/intellij/execution/junit/JUnitTreeByDescriptionHierarchyTest.java

@@ -17,7 +17,9 @@ package com.intellij.execution.junit;
 
 import com.intellij.junit4.JUnit4TestListener;
 import com.intellij.openapi.util.text.StringUtil;
+import com.intellij.psi.impl.DebugUtil;
 import junit.framework.Assert;
+import org.junit.ComparisonFailure;
 import org.junit.Test;
 import org.junit.runner.Description;
 import org.junit.runner.Result;
@@ -30,6 +32,9 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
 public class JUnitTreeByDescriptionHierarchyTest {
   @Test
   public void testEmptySuite() throws Exception {
@@ -465,6 +470,24 @@ public class JUnitTreeByDescriptionHierarchyTest {
                                           "##teamcity[testSuiteFinished name='TestA']\n", StringUtil.convertLineSeparators(buf.toString()));
   }
 
+  @Test
+  public void testLongOutputPreservesTestName() throws Exception {
+    StringBuffer buf = new StringBuffer();
+    for (int i = 0; i < 1000; i++) {
+      buf.append(DebugUtil.currentStackTrace());
+    }
+
+    final StringBuffer output = new StringBuffer();
+    final JUnit4TestListener sender = createListener(output);
+
+    final Description description = Description.createTestDescription("A", "a");
+    sender.testFailure(new Failure(description, new ComparisonFailure(buf.toString(), buf.toString(), "diff" + buf.toString())));
+
+    final String startMessage = "##teamcity[enteredTheMatrix]\n\n" +
+                                "##teamcity[testFailed name='A.a' ";
+    assertEquals(startMessage, StringUtil.convertLineSeparators(output.substring(0, startMessage.length() + 1)));
+  }
+
   @Test
   public void testParallelExecution() throws Exception {
     final Description root = Description.createSuiteDescription("root");

plugins/junit_rt/src/com/intellij/junit4/JUnit4TestListener.java

@@ -268,7 +268,7 @@ public class JUnit4TestListener extends RunListener {
       return;
     }
 
-    final Map attrs = new HashMap();
+    final Map attrs = new LinkedHashMap();
     attrs.put("name", methodName);
     final long duration = currentTime() - myCurrentTestStart;
     if (duration > 0) {