diff --git a/src/class_diagram/visitor/translation_unit_visitor.cc b/src/class_diagram/visitor/translation_unit_visitor.cc
index 14709b29..3aff1883 100644
--- a/src/class_diagram/visitor/translation_unit_visitor.cc
+++ b/src/class_diagram/visitor/translation_unit_visitor.cc
@@ -171,10 +171,9 @@ bool translation_unit_visitor::VisitEnumDecl(clang::EnumDecl *enm)
             }
         }
 
-        if(!id_opt) {
+        if (!id_opt) {
             LOG_WARN("Unknown parent for enum {}", qualified_name);
             return true;
-
         }
 
         auto parent_class = diagram_.get_class(*id_opt);
diff --git a/src/sequence_diagram/visitor/call_expression_context.cc b/src/sequence_diagram/visitor/call_expression_context.cc
index a936dae2..cd75d268 100644
--- a/src/sequence_diagram/visitor/call_expression_context.cc
+++ b/src/sequence_diagram/visitor/call_expression_context.cc
@@ -177,7 +177,7 @@ void call_expression_context::enter_lambda_expression(std::int64_t id)
 
 void call_expression_context::leave_lambda_expression()
 {
-    if(current_lambda_caller_id_.empty())
+    if (current_lambda_caller_id_.empty())
         return;
 
     LOG_DBG("Leaving current lambda expression id to {}",
diff --git a/src/sequence_diagram/visitor/translation_unit_visitor.h b/src/sequence_diagram/visitor/translation_unit_visitor.h
index 3bb75fdc..61d3627a 100644
--- a/src/sequence_diagram/visitor/translation_unit_visitor.h
+++ b/src/sequence_diagram/visitor/translation_unit_visitor.h
@@ -64,8 +64,6 @@ public:
     bool VisitFunctionTemplateDecl(
         clang::FunctionTemplateDecl *function_declaration);
 
-
-
     clanguml::sequence_diagram::model::diagram &diagram();
 
     const clanguml::sequence_diagram::model::diagram &diagram() const;
@@ -206,8 +204,7 @@ private:
     bool is_smart_pointer(const clang::TemplateDecl *primary_template) const;
 
     bool is_callee_valid_template_specialization(
-        const clang::CXXDependentScopeMemberExpr *dependent_member_expr)
-        const;
+        const clang::CXXDependentScopeMemberExpr *dependent_member_expr) const;
 
     bool process_operator_call_expression(model::message &m,
         const clang::CXXOperatorCallExpr *operator_call_expr);
diff --git a/tests/t20001/test_case.h b/tests/t20001/test_case.h
index c50075e6..87f3d4a3 100644
--- a/tests/t20001/test_case.h
+++ b/tests/t20001/test_case.h
@@ -40,7 +40,8 @@ TEST_CASE("t20001", "[test-case][sequence]")
 
     REQUIRE_THAT(puml, HasCall(_A("A"), "log_result(int)"));
     REQUIRE_THAT(puml, HasCall(_A("B"), _A("A"), "log_result(int)"));
-    REQUIRE_THAT(puml, HasCallWithResponse(_A("B"), _A("A"), "add3(int,int,int)"));
+    REQUIRE_THAT(
+        puml, HasCallWithResponse(_A("B"), _A("A"), "add3(int,int,int)"));
     REQUIRE_THAT(puml, HasCall(_A("A"), "add(int,int)"));
     REQUIRE_THAT(puml, !HasCall(_A("A"), _A("detail::C"), "add(int,int)"));
 
diff --git a/tests/t20012/test_case.h b/tests/t20012/test_case.h
index cb68ff3e..e639dd23 100644
--- a/tests/t20012/test_case.h
+++ b/tests/t20012/test_case.h
@@ -68,7 +68,6 @@ TEST_CASE("t20012", "[test-case][sequence]")
 
     REQUIRE_THAT(puml, HasCall(_A("tmain()"), _A("D"), "add5(int)"));
 
-
     save_puml(
         "./" + config.output_directory() + "/" + diagram->name + ".puml", puml);
 }
\ No newline at end of file
diff --git a/tests/t20014/include/t20014_c.h b/tests/t20014/include/t20014_c.h
index 83f13875..463cfa8b 100644
--- a/tests/t20014/include/t20014_c.h
+++ b/tests/t20014/include/t20014_c.h
@@ -4,13 +4,9 @@ namespace clanguml {
 namespace t20014 {
 
 template <typename T, typename F> struct C {
-    F c1(F i, F j) {
-        return c_.b1(i, j);
-    }
+    F c1(F i, F j) { return c_.b1(i, j); }
 
-    F c2(F i, F j){
-        return c_.b2(i, j);
-    }
+    F c2(F i, F j) { return c_.b2(i, j); }
 
     T c_;
 };
diff --git a/tests/t20014/test_case.h b/tests/t20014/test_case.h
index eec0fe57..f92ed6bb 100644
--- a/tests/t20014/test_case.h
+++ b/tests/t20014/test_case.h
@@ -33,7 +33,7 @@ TEST_CASE("t20014", "[test-case][sequence]")
 
     REQUIRE_THAT(puml, StartsWith("@startuml"));
     REQUIRE_THAT(puml, EndsWith("@enduml\n"));
-    
+
     // Check if all calls exist
     REQUIRE_THAT(puml, HasCall(_A("tmain()"), _A("B"), "b1(int,int)"));
     REQUIRE_THAT(puml, HasCall(_A("B"), _A("A"), "a1(int,int)"));
diff --git a/tests/t20016/t20016.cc b/tests/t20016/t20016.cc
index 228aad6b..77bf22cb 100644
--- a/tests/t20016/t20016.cc
+++ b/tests/t20016/t20016.cc
@@ -2,7 +2,7 @@ namespace clanguml {
 namespace t20016 {
 struct A {
     void a1(int a) { }
-    template <typename T> T a2(const T &a) { return a;}
+    template <typename T> T a2(const T &a) { return a; }
 };
 
 template <typename T> struct B {
@@ -13,7 +13,8 @@ template <typename T> struct B {
     A a_;
 };
 
-void tmain() {
+void tmain()
+{
     B<long> b;
 
     b.b1(1);
diff --git a/tests/t20017/test_case.h b/tests/t20017/test_case.h
index d16bcc96..ee5ede2f 100644
--- a/tests/t20017/test_case.h
+++ b/tests/t20017/test_case.h
@@ -45,8 +45,7 @@ TEST_CASE("t20017", "[test-case][sequence]")
     REQUIRE_THAT(puml,
         HasCall(_A("t20017.cc"), _A("include/t20017_b.h"), "b1(int,int)"));
     REQUIRE_THAT(puml,
-        HasCall(
-            _A("t20017.cc"), _A("include/t20017_b.h"), "b2<int>(int,int)"));
+        HasCall(_A("t20017.cc"), _A("include/t20017_b.h"), "b2<int>(int,int)"));
     REQUIRE_THAT(puml, HasExitpoint(_A("t20017.cc")));
 
     save_puml(
diff --git a/tests/test_cases.h b/tests/test_cases.h
index f4e9fd87..ff4da381 100644
--- a/tests/test_cases.h
+++ b/tests/test_cases.h
@@ -79,19 +79,26 @@ template <typename T, typename... Ts> constexpr bool has_type() noexcept
     return (std::is_same_v<T, Ts> || ... || false);
 }
 
-struct Public { };
+struct Public {
+};
 
-struct Protected { };
+struct Protected {
+};
 
-struct Private { };
+struct Private {
+};
 
-struct Abstract { };
+struct Abstract {
+};
 
-struct Static { };
+struct Static {
+};
 
-struct Const { };
+struct Const {
+};
 
-struct Default { };
+struct Default {
+};
 
 struct HasCallWithResultMatcher : ContainsMatcher {
     HasCallWithResultMatcher(