ClangCodeModel: Make "live update" of dependent sources opt-in

Not everyone wants to invest the extra computing resources needed for
this feature.
Amends b33b99e2d9e4c343f7427bcf1ccdf652e7575557.
See 6d805195f6d35df932d666f86af026c051c785f8 for the original
motivation.

Task-number: QTCREATORBUG-29943
Change-Id: I4c8cce5bb58b34d930a409ea3e0995377c90d4ab
Reviewed-by: David Schulz <[email protected]>
Reviewed-by: <[email protected]>

1 files changed, 16 insertions, 0 deletions

diff --git a/src/plugins/clangcodemodel/test/clangdtests.cpp b/src/plugins/clangcodemodel/test/clangdtests.cpp
index ae92afb45ff..f18c1641559 100644
--- a/src/plugins/clangcodemodel/test/clangdtests.cpp
+++ b/src/plugins/clangcodemodel/test/clangdtests.cpp
@@ -2240,6 +2240,8 @@ public:
     ClangdTestIndirectChanges();
 
 private slots:
+    void initTestCase() override;
+    void cleanupTestCase();
     void test();
 };
 
@@ -2249,6 +2251,20 @@ ClangdTestIndirectChanges::ClangdTestIndirectChanges()
     setSourceFileNames({"main.cpp", "directheader.h", "indirectheader.h", "unrelatedheader.h"});
 }
 
+void ClangdTestIndirectChanges::initTestCase()
+{
+    CppEditor::ClangdSettings &settings = CppEditor::ClangdSettings::instance();
+    CppEditor::ClangdSettings::Data settingsData = settings.data();
+    settingsData.updateDependentSources = true;
+    settings.setData(settingsData, false);
+    ClangdTest::initTestCase();
+}
+
+void ClangdTestIndirectChanges::cleanupTestCase()
+{
+    CppEditor::ClangdSettings::instance().setData({}, false);
+}
+
 void ClangdTestIndirectChanges::test()
 {
     // Initially, everything is fine.