diff --git a/tests/common/SetupStack.hpp b/tests/common/SetupStack.hpp
index 67715c8d0ce903a745f3be5193246e88742bbcfc..e2bd85f2aeaa903f65854357d5a51834f43f0c57 100644
--- a/tests/common/SetupStack.hpp
+++ b/tests/common/SetupStack.hpp
@@ -1,9 +1,9 @@
 /*
-* (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
-*
-* This software is distributed under the terms of the GNU General Public
-* Licence version 3 (GPL Version 3). See file LICENSE for a full version of
-* the license.
+ * (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
+ *
+ * This software is distributed under the terms of the GNU General Public
+ * Licence version 3 (GPL Version 3). See file LICENSE for a full version of
+ * the license.
  */
 
 #include <tests/common/TestStack.hpp>
@@ -22,14 +22,14 @@ namespace corsika::test {
 #include <corsika/stack/history/HistorySecondaryProducer.hpp>
 
   /*
-  * the version with history
+   * the version with history
    */
   using Stack = detaill::StackWithHistory;
 
 #else // WITH_HISTORY
 
   /*
-  * the version without history
+   * the version without history
    */
   using Stack = detail::StackWithGeometry;
 
diff --git a/tests/common/SetupTestEnvironment.hpp b/tests/common/SetupTestEnvironment.hpp
index e1ab056d466b8f292daf9ec7b0005e01be9d8529..2be9f34d53ef3a71ea93730b10c426f98d9fdac7 100644
--- a/tests/common/SetupTestEnvironment.hpp
+++ b/tests/common/SetupTestEnvironment.hpp
@@ -20,17 +20,17 @@
 
 namespace corsika {
 
-  using DummyEnvironmentInterface = IMediumPropertyModel<IMagneticFieldModel<IMediumModel>>;
+  using DummyEnvironmentInterface =
+      IMediumPropertyModel<IMagneticFieldModel<IMediumModel>>;
   using DummyEnvironment = Environment<DummyEnvironmentInterface>;
 
-
   namespace setup::testing {
 
     /**
-   * \function setup_environment
-   *
-   * standard environment for unit testing.
-   *
+     * \function setup_environment
+     *
+     * standard environment for unit testing.
+     *
      */
 
     inline std::tuple<std::unique_ptr<DummyEnvironment>, CoordinateSystemPtr const*,
@@ -43,13 +43,12 @@ namespace corsika {
       CoordinateSystemPtr const& cs = env->getCoordinateSystem();
 
       /**
-     * our world is a sphere at 0,0,0 with R=infty
+       * our world is a sphere at 0,0,0 with R=infty
        */
-      auto world =
-          DummyEnvironment::createNode<Sphere>(Point{cs, 0_m, 0_m, 0_m}, 100_km);
+      auto world = DummyEnvironment::createNode<Sphere>(Point{cs, 0_m, 0_m, 0_m}, 100_km);
 
       /**
-     * construct suited environment medium model:
+       * construct suited environment medium model:
        */
       using MyHomogeneousModel = MediumPropertyModel<
           UniformMagneticField<HomogeneousMedium<DummyEnvironmentInterface>>>;
diff --git a/tests/common/SetupTestStack.hpp b/tests/common/SetupTestStack.hpp
index b3fe64f48c7a0376c67b81dbc646d3d5c037f4a6..bbe30c312dcf982218ce67b9bb5437bde7fa04a3 100644
--- a/tests/common/SetupTestStack.hpp
+++ b/tests/common/SetupTestStack.hpp
@@ -27,18 +27,19 @@
 
 namespace corsika {
 
-  using DummyEnvironmentInterface = IMediumPropertyModel<IMagneticFieldModel<IMediumModel>>;
+  using DummyEnvironmentInterface =
+      IMediumPropertyModel<IMagneticFieldModel<IMediumModel>>;
   using DummyEnvironment = Environment<DummyEnvironmentInterface>;
 
   namespace setup::testing {
 
     /**
-   * \function setup_stack
-   *
-   * standard stack setup for unit tests.
-   *
-   * \return a tuple with element 0 being a Stack object filled with
-   * one particle, and element 1 the StackView on it.
+     * \function setup_stack
+     *
+     * standard stack setup for unit tests.
+     *
+     * \return a tuple with element 0 being a Stack object filled with
+     * one particle, and element 1 the StackView on it.
      */
 
     inline std::tuple<std::unique_ptr<test::Stack>, std::unique_ptr<test::StackView>>
diff --git a/tests/common/TestStack.hpp b/tests/common/TestStack.hpp
index 6e93f8d77dfb9e6507bfff3b6b5c4fbe157e6749..299a0742964bbb42b442bc3cfac31d5fbad16ccf 100644
--- a/tests/common/TestStack.hpp
+++ b/tests/common/TestStack.hpp
@@ -1,9 +1,9 @@
 /*
-* (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
-*
-* This software is distributed under the terms of the GNU General Public
-* Licence version 3 (GPL Version 3). See file LICENSE for a full version of
-* the license.
+ * (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
+ *
+ * This software is distributed under the terms of the GNU General Public
+ * Licence version 3 (GPL Version 3). See file LICENSE for a full version of
+ * the license.
  */
 
 #pragma once
@@ -20,7 +20,8 @@
 namespace corsika {
 
   // maybe use a similar copy of this file with defined templates for tests?
-  using DummyEnvironmentInterface = IMediumPropertyModel<IMagneticFieldModel<IMediumModel>>;
+  using DummyEnvironmentInterface =
+      IMediumPropertyModel<IMagneticFieldModel<IMediumModel>>;
   using DummyEnvironment = Environment<DummyEnvironmentInterface>;
 
   namespace test::detail {
diff --git a/tests/modules/testCONEX.cpp b/tests/modules/testCONEX.cpp
index 17f55ec2e6f92c7a3a4db94aec6353b90f0532d4..4c515a1f658b865226dbcfbdf4536cdc77784c27 100644
--- a/tests/modules/testCONEX.cpp
+++ b/tests/modules/testCONEX.cpp
@@ -70,10 +70,10 @@ TEST_CASE("CONEX") {
 
   auto builder = make_layered_spherical_atmosphere_builder<
       DummyEnvironmentInterface, MExtraEnvirnoment>::create(center,
-                                                              corsika::conex::earthRadius,
-                                                              Medium::AirDry1Atm,
-                                                              Vector{rootCS, 0_T, 50_mT,
-                                                                     0_T});
+                                                            corsika::conex::earthRadius,
+                                                            Medium::AirDry1Atm,
+                                                            Vector{rootCS, 0_T, 50_mT,
+                                                                   0_T});
 
   builder.setNuclearComposition(
       {{Code::Nitrogen, Code::Oxygen},
diff --git a/tests/modules/testQGSJetII.cpp b/tests/modules/testQGSJetII.cpp
index e0676e68fd8a575d7324c67e75c20bf9bd794334..9f3e685801b9b70b347dddb43506a8b063eae55c 100644
--- a/tests/modules/testQGSJetII.cpp
+++ b/tests/modules/testQGSJetII.cpp
@@ -242,8 +242,7 @@ TEST_CASE("QgsjetIIInterface", "interaction,processes") {
     }
     { // Lambda is internally converted into neutron
       auto [stackPtr, secViewPtr] = setup::testing::setup_stack(
-          Code::Lambda0, 100_GeV, (DummyEnvironment::BaseNodeType* const)nodePtr,
-          *csPtr);
+          Code::Lambda0, 100_GeV, (DummyEnvironment::BaseNodeType* const)nodePtr, *csPtr);
       [[maybe_unused]] test::StackView& view = *(secViewPtr.get());
       [[maybe_unused]] auto particle = stackPtr->first();
       corsika::qgsjetII::InteractionModel model;