tests ui: pass current test name so comparison failure is able to present it in the diff title (IDEA-206042)

platform/smRunner/src/com/intellij/execution/testframework/sm/runner/SMTestProxy.java

@@ -528,6 +528,11 @@ public class SMTestProxy extends AbstractTestProxy {
     setStacktraceIfNotSet(stackTrace);
     myErrorMessage = localizedMessage;
     final TestComparisionFailedState comparisionFailedState = new TestComparisionFailedState(localizedMessage, stackTrace, actualText, expectedText, expectedFilePath, actualFilePath);
+    DiffHyperlink hyperlink = comparisionFailedState.getHyperlink();
+    if (hyperlink != null) {
+      hyperlink.setTestProxyName(getName());
+    }
+
     if (myState instanceof CompoundTestFailedState) {
       ((CompoundTestFailedState)myState).addFailure(comparisionFailedState);
     }

platform/testRunner/src/com/intellij/execution/testframework/AbstractTestProxy.java

@@ -171,6 +171,16 @@ public abstract class AbstractTestProxy extends CompositePrintable {
     return null;
   }
 
+  @Override
+  protected DiffHyperlink createHyperlink(String expected,
+                                          String actual,
+                                          String filePath,
+                                          final String actualFilePath, final boolean printOneLine) {
+    DiffHyperlink hyperlink = super.createHyperlink(expected, actual, filePath, actualFilePath, printOneLine);
+    hyperlink.setTestProxyName(getName());
+    return hyperlink;
+  }
+
   @Nullable
   public String getLocationUrl() {
     return null;

platform/testRunner/src/com/intellij/execution/testframework/CompositePrintable.java

@@ -344,8 +344,7 @@ public class CompositePrintable extends UserDataHolderBase implements Printable,
             final String firstToken = IOUtil.readString(reader);
             if (firstToken == null) break;
             if (firstToken.equals(HYPERLINK)) {
-              new DiffHyperlink(IOUtil.readString(reader), IOUtil.readString(reader), IOUtil.readString(reader), false)
-                .printOn(printer);
+              createHyperlink(IOUtil.readString(reader), IOUtil.readString(reader), IOUtil.readString(reader), null, false).printOn(printer);
             }
             else {
               ConsoleViewContentType contentType = contentTypeByNameMap.getOrDefault(firstToken, ConsoleViewContentType.NORMAL_OUTPUT);
@@ -387,6 +386,13 @@ public class CompositePrintable extends UserDataHolderBase implements Printable,
     }
   }
 
+  protected DiffHyperlink createHyperlink(final String expected,
+                                          final String actual,
+                                          final String filePath,
+                                          final String actualFilePath, final boolean printOneLine) {
+    return new DiffHyperlink(expected, actual, filePath, actualFilePath, printOneLine);
+  }
+
   private void printOutputFile(List<Printable> currentPrintables) {
     if (myOutputFile != null && new File(myOutputFile).isFile()) {
       try (PrintStream printStream = new PrintStream(new FileOutputStream(new File(myOutputFile), true))) {

platform/testRunner/src/com/intellij/execution/testframework/stacktrace/DiffHyperlink.java

@@ -43,6 +43,7 @@ public class DiffHyperlink implements Printable {
   protected final String myActualFilePath;
   private final boolean myPrintOneLine;
   private final HyperlinkInfo myDiffHyperlink = new DiffHyperlinkInfo();
+  private String myTestProxyName;
 
 
   public DiffHyperlink(final String expected, final String actual, final String filePath) {
@@ -68,12 +69,16 @@ public class DiffHyperlink implements Printable {
     myPrintOneLine = printOneLine;
   }
 
+  public void setTestProxyName(String name) {
+    myTestProxyName = name;
+  }
+
   private static String normalizeSeparators(String filePath) {
     return filePath == null ? null : filePath.replace(File.separatorChar, '/');
   }
 
   protected String getTitle() {
-    return ExecutionBundle.message("strings.equal.failed.dialog.title");
+    return ExecutionBundle.message("strings.equal.failed.dialog.title") + (myTestProxyName != null ? " (" + myTestProxyName + ")" : "");
   }
 
   public String getDiffTitle() {