Find/replace overlay: add test for proper shortcut hints

tests/org.eclipse.ui.workbench.texteditor.tests/src/org/eclipse/ui/internal/findandreplace/overlay/FindReplaceOverlayTest.java

@@ -19,6 +19,7 @@
 import static org.hamcrest.Matchers.is;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import org.junit.jupiter.api.Test;
 
@@ -30,6 +31,7 @@
 
 import org.eclipse.text.tests.Accessor;
 
+import org.eclipse.jface.bindings.keys.KeyStroke;
 import org.eclipse.jface.viewers.ISelection;
 
 import org.eclipse.jface.text.IFindReplaceTarget;
@@ -57,6 +59,27 @@ public OverlayAccess openUIFromTextViewer(TextViewer viewer) {
 		return uiAccess;
 	}
 
+	@Test
+	public void testShortcutHintReflectsFocusedInputField() {
+		initializeTextViewerWithFindReplaceUI("line");
+		OverlayAccess dialog= getDialog();
+
+		String searchForwardHint= KeyStroke.getInstance(SWT.CR).format();
+
+		// The search bar has focus right after opening: its own shortcut hint is shown.
+		assertTrue(dialog.getSearchForwardToolTipText().contains(searchForwardHint));
+
+		// Opening the replace bar moves focus there: the search-scoped hint disappears and the
+		// replace-scoped hint (which happens to reuse the same shortcut) appears instead.
+		dialog.openReplaceDialog();
+		assertFalse(dialog.getSearchForwardToolTipText().contains(searchForwardHint));
+		assertTrue(dialog.getReplaceToolTipText().contains(searchForwardHint));
+
+		// Closing the replace bar returns focus to the search bar: its hint is shown again.
+		dialog.closeReplaceDialog();
+		assertTrue(dialog.getSearchForwardToolTipText().contains(searchForwardHint));
+	}
+
 	@Test
 	public void testDirectionalSearchButtons() {
 		initializeTextViewerWithFindReplaceUI("line\nline\nline\nline");

tests/org.eclipse.ui.workbench.texteditor.tests/src/org/eclipse/ui/internal/findandreplace/overlay/OverlayAccess.java

@@ -254,6 +254,14 @@ public void performReplace() {
 		replaceButton.notifyListeners(SWT.Selection, null);
 	}
 
+	public String getSearchForwardToolTipText() {
+		return searchForward.getToolTipText();
+	}
+
+	public String getReplaceToolTipText() {
+		return replaceButton != null ? replaceButton.getToolTipText() : null;
+	}
+
 	public boolean isReplaceDialogOpen() {
 		return replace != null;
 	}