CppTools: Garbage collect if the last CppEditor is closed

Task-number: QTCREATORBUG-9828

Change-Id: Ie0ef9757cedb772702e49542b58d5b589506aa9e
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/src/plugins/cpptools/cppmodelmanager_test.cpp b/src/plugins/cpptools/cppmodelmanager_test.cpp
index 305b16b2c2..7bd128d209 100644
--- a/src/plugins/cpptools/cppmodelmanager_test.cpp
+++ b/src/plugins/cpptools/cppmodelmanager_test.cpp
@@ -32,6 +32,7 @@
 #include "cpppreprocessor.h"
 #include "modelmanagertesthelper.h"
 
+#include <coreplugin/editormanager/editormanager.h>
 #include <projectexplorer/projectexplorer.h>
 #include <projectexplorer/session.h>
 
@@ -413,3 +414,33 @@ void CppToolsPlugin::test_modelmanager_extraeditorsupport_uiFiles()
     sm->removeProject(project);
     ModelManagerTestHelper::verifyClean();
 }
+
+/// QTCREATORBUG-9828: Locator shows symbols of closed files
+/// Check: The garbage collector should be run if the last CppEditor is closed.
+void CppToolsPlugin::test_modelmanager_gc_if_last_cppeditor_closed()
+{
+    TestDataDirectory testDataDirectory(QLatin1String("testdata_guiproject1"));
+    const QString file = testDataDirectory.file(QLatin1String("main.cpp"));
+
+    Core::EditorManager *em = Core::EditorManager::instance();
+    CppModelManager *mm = CppModelManager::instance();
+
+    // Open a file in the editor
+    QCOMPARE(Core::EditorManager::documentModel()->openedDocuments().size(), 0);
+    Core::IEditor *editor = em->openEditor(file);
+    QVERIFY(editor);
+    QCOMPARE(Core::EditorManager::documentModel()->openedDocuments().size(), 1);
+    QVERIFY(mm->isCppEditor(editor));
+    QVERIFY(mm->workingCopy().contains(file));
+
+    // Check: File is in the snapshot
+    QVERIFY(mm->snapshot().contains(file));
+
+    // Close file/editor
+    const QList<Core::IEditor*> editorsToClose = QList<Core::IEditor*>() << editor;
+    em->closeEditors(editorsToClose, /*askAboutModifiedEditors=*/ false);
+
+    // Check: File is removed from the snapshpt
+    QVERIFY(!mm->workingCopy().contains(file));
+    QVERIFY(!mm->snapshot().contains(file));
+}