diff --git a/tests/unit-tests/CMakeLists.txt b/tests/unit-tests/CMakeLists.txt
index 9e6af955..f4a71100 100644
--- a/tests/unit-tests/CMakeLists.txt
+++ b/tests/unit-tests/CMakeLists.txt
@@ -233,12 +233,12 @@ target_link_libraries(
 )
 
 add_executable(
-  displacement_newmark_elastic_tests
-  displacement_tests/Newmark/elastic/newmark_tests.cpp
+  displacement_newmark_tests
+  displacement_tests/Newmark/newmark_tests.cpp
 )
 
 target_link_libraries(
-  displacement_newmark_elastic_tests
+  displacement_newmark_tests
   quadrature
   mesh
   material_class
@@ -252,25 +252,45 @@ target_link_libraries(
   -lpthread -lm
 )
 
-add_executable(
-  displacement_newmark_acoustic_tests
-  displacement_tests/Newmark/acoustic/newmark_tests.cpp
-)
-
-target_link_libraries(
-  displacement_newmark_acoustic_tests
-  quadrature
-  mesh
-  material_class
-  yaml-cpp
-  kokkos_environment
-  mpi_environment
-  compute
-  parameter_reader
-  compare_arrays
-  timescheme
-  -lpthread -lm
-)
+# add_executable(
+#   displacement_newmark_elastic_tests
+#   displacement_tests/Newmark/elastic/newmark_tests.cpp
+# )
+
+# target_link_libraries(
+#   displacement_newmark_elastic_tests
+#   quadrature
+#   mesh
+#   material_class
+#   yaml-cpp
+#   kokkos_environment
+#   mpi_environment
+#   compute
+#   parameter_reader
+#   compare_arrays
+#   timescheme
+#   -lpthread -lm
+# )
+
+# add_executable(
+#   displacement_newmark_acoustic_tests
+#   displacement_tests/Newmark/acoustic/newmark_tests.cpp
+# )
+
+# target_link_libraries(
+#   displacement_newmark_acoustic_tests
+#   quadrature
+#   mesh
+#   material_class
+#   yaml-cpp
+#   kokkos_environment
+#   mpi_environment
+#   compute
+#   parameter_reader
+#   compare_arrays
+#   timescheme
+#   -lpthread -lm
+# )
 
 add_executable(
   seismogram_elastic_tests
@@ -338,8 +358,10 @@ if (NOT MPI_PARALLEL)
   gtest_discover_tests(compute_tests)
   gtest_discover_tests(source_location_tests)
   gtest_discover_tests(rmass_inverse_elastic_tests)
-  gtest_discover_tests(displacement_newmark_elastic_tests)
-  gtest_discover_tests(displacement_newmark_acoustic_tests)
+  gtest_discover_tests(rmass_inverse_acoustic_tests)
+  gtest_discover_tests(displacement_newmark_tests)
+  # gtest_discover_tests(displacement_newmark_elastic_tests)
+  # gtest_discover_tests(displacement_newmark_acoustic_tests)
   gtest_discover_tests(seismogram_elastic_tests)
   gtest_discover_tests(seismogram_acoustic_tests)
 endif(NOT MPI_PARALLEL)
diff --git a/tests/unit-tests/displacement_tests/Newmark/newmark_tests.cpp b/tests/unit-tests/displacement_tests/Newmark/newmark_tests.cpp
new file mode 100644
index 00000000..0f828ae5
--- /dev/null
+++ b/tests/unit-tests/displacement_tests/Newmark/newmark_tests.cpp
@@ -0,0 +1,257 @@
+#include "../../Kokkos_Environment.hpp"
+#include "../../MPI_environment.hpp"
+#include "../../utilities/include/compare_array.h"
+#include "compute/interface.hpp"
+#include "constants.hpp"
+#include "domain/interface.hpp"
+#include "material/interface.hpp"
+#include "mesh/mesh.hpp"
+#include "parameter_parser/interface.hpp"
+#include "quadrature/interface.hpp"
+#include "solver/interface.hpp"
+#include "timescheme/interface.hpp"
+#include "yaml-cpp/yaml.h"
+
+// ------------------------------------- //
+// ------- Test configuration ----------- //
+
+namespace test_config {
+struct database {
+public:
+  database()
+      : specfem_config(""), elastic_domain_field("NULL"),
+        acoustic_domain_field("NULL"){};
+  database(const YAML::Node &Node) {
+    specfem_config = Node["specfem_config"].as<std::string>();
+    // check if node elastic_domain_field exists
+    if (Node["elastic_domain_field"])
+      elastic_domain_field = Node["elastic_domain_field"].as<std::string>();
+
+    // check if node acoustic_domain_field exists
+    if (Node["acoustic_domain_field"])
+      acoustic_domain_field = Node["acoustic_domain_field"].as<std::string>();
+  }
+  std::string specfem_config;
+  std::string elastic_domain_field = "NULL";
+  std::string acoustic_domain_field = "NULL";
+};
+
+struct configuration {
+public:
+  configuration() : number_of_processors(0){};
+  configuration(const YAML::Node &Node) {
+    number_of_processors = Node["nproc"].as<int>();
+  }
+  int number_of_processors;
+};
+
+struct Test {
+public:
+  Test(const YAML::Node &Node) {
+    name = Node["name"].as<std::string>();
+    description = Node["description"].as<std::string>();
+    YAML::Node config = Node["config"];
+    configuration = test_config::configuration(config);
+
+    YAML::Node database_node = Node["databases"];
+    database = test_config::database(database_node);
+    return;
+  }
+
+  std::string name;
+  std::string description;
+  test_config::database database;
+  test_config::configuration configuration;
+};
+} // namespace test_config
+
+// ------------------------------------- //
+
+// ----- Parse test config ------------- //
+
+std::vector<test_config::Test> parse_test_config(std::string test_config_file,
+                                                 specfem::MPI::MPI *mpi) {
+  YAML::Node yaml = YAML::LoadFile(test_config_file);
+  const YAML::Node &tests = yaml["Tests"];
+
+  assert(tests.IsSequence());
+
+  std::vector<test_config::Test> test_configurations;
+  for (auto N : tests)
+    test_configurations.push_back(test_config::Test(N));
+
+  return test_configurations;
+}
+
+// ------------------------------------- //
+
+TEST(DISPLACEMENT_TESTS, newmark_scheme_tests) {
+  std::string config_filename = "../../../tests/unit-tests/displacement_tests/"
+                                "Newmark/test_config.yaml";
+
+  specfem::MPI::MPI *mpi = MPIEnvironment::mpi_;
+
+  auto Tests = parse_test_config(config_filename, mpi);
+
+  for (auto &Test : Tests) {
+    std::cout << "-------------------------------------------------------\n"
+              << "[RUNNING] Test: " << Test.name << "\n"
+              << "-------------------------------------------------------\n\n"
+              << std::endl;
+
+    const auto parameter_file = Test.database.specfem_config;
+
+    specfem::runtime_configuration::setup setup(parameter_file,
+                                                __default_file__);
+
+    const auto [database_file, sources_file] = setup.get_databases();
+
+    // Set up GLL quadrature points
+    auto [gllx, gllz] = setup.instantiate_quadrature();
+
+    // Read mesh generated MESHFEM
+    std::vector<specfem::material::material *> materials;
+    specfem::mesh::mesh mesh(database_file, materials, mpi);
+
+    // Read sources
+    //    if start time is not explicitly specified then t0 is determined using
+    //    source frequencies and time shift
+    auto [sources, t0] =
+        specfem::sources::read_sources(sources_file, setup.get_dt(), mpi);
+
+    // Generate compute structs to be used by the solver
+    specfem::compute::compute compute(mesh.coorg, mesh.material_ind.knods, gllx,
+                                      gllz);
+    specfem::compute::partial_derivatives partial_derivatives(
+        mesh.coorg, mesh.material_ind.knods, gllx, gllz);
+    specfem::compute::properties material_properties(
+        mesh.material_ind.kmato, materials, mesh.nspec, gllx->get_N(),
+        gllz->get_N());
+    specfem::compute::coupled_interfaces::coupled_interfaces coupled_interfaces(
+        compute.h_ibool, compute.coordinates.coord,
+        material_properties.h_ispec_type, mesh.coupled_interfaces);
+
+    // Locate the sources
+    for (auto &source : sources)
+      source->locate(compute.coordinates.coord, compute.h_ibool,
+                     gllx->get_hxi(), gllz->get_hxi(), mesh.nproc, mesh.coorg,
+                     mesh.material_ind.knods, mesh.npgeo,
+                     material_properties.h_ispec_type, mpi);
+
+    // User output
+    for (auto &source : sources) {
+      if (mpi->main_proc())
+        std::cout << *source << std::endl;
+    }
+
+    // Update solver intialization time
+    setup.update_t0(-1.0 * t0);
+
+    // Instantiate the solver and timescheme
+    auto it = setup.instantiate_solver();
+
+    // User output
+    if (mpi->main_proc())
+      std::cout << *it << std::endl;
+
+    // Setup solver compute struct
+    const type_real xmax = compute.coordinates.xmax;
+    const type_real xmin = compute.coordinates.xmin;
+    const type_real zmax = compute.coordinates.zmax;
+    const type_real zmin = compute.coordinates.zmin;
+
+    specfem::compute::sources compute_sources(sources, gllx, gllz, xmax, xmin,
+                                              zmax, zmin, mpi);
+
+    specfem::compute::receivers compute_receivers;
+
+    // Instantiate domain classes
+
+    try {
+
+      const int nglob = specfem::utilities::compute_nglob(compute.h_ibool);
+      specfem::enums::element::quadrature::static_quadrature_points<5> qp5;
+
+      specfem::domain::domain<
+          specfem::enums::element::medium::elastic,
+          specfem::enums::element::quadrature::static_quadrature_points<5> >
+          elastic_domain_static(nglob, qp5, &compute, material_properties,
+                                partial_derivatives, compute_sources,
+                                compute_receivers, gllx, gllz);
+
+      specfem::domain::domain<
+          specfem::enums::element::medium::acoustic,
+          specfem::enums::element::quadrature::static_quadrature_points<5> >
+          acoustic_domain_static(nglob, qp5, &compute, material_properties,
+                                 partial_derivatives, compute_sources,
+                                 compute_receivers, gllx, gllz);
+
+      // Instantiate coupled interfaces
+      specfem::coupled_interface::coupled_interface acoustic_elastic_interface(
+          acoustic_domain_static, elastic_domain_static, coupled_interfaces,
+          qp5, partial_derivatives, compute.h_ibool, gllx->get_xi(),
+          gllz->get_xi());
+
+      specfem::coupled_interface::coupled_interface elastic_acoustic_interface(
+          elastic_domain_static, acoustic_domain_static, coupled_interfaces,
+          qp5, partial_derivatives, compute.h_ibool, gllx->get_xi(),
+          gllz->get_xi());
+
+      specfem::solver::solver *solver = new specfem::solver::time_marching<
+          specfem::enums::element::quadrature::static_quadrature_points<5> >(
+          acoustic_domain_static, elastic_domain_static,
+          acoustic_elastic_interface, elastic_acoustic_interface, it);
+
+      solver->run();
+
+      elastic_domain_static.sync_field(specfem::sync::DeviceToHost);
+      acoustic_domain_static.sync_field(specfem::sync::DeviceToHost);
+
+      if (Test.database.elastic_domain_field != "NULL") {
+        specfem::kokkos::HostView2d<type_real, Kokkos::LayoutLeft>
+            field_elastic = elastic_domain_static.get_host_field();
+
+        type_real tolerance = 0.01;
+
+        specfem::testing::compare_norm(field_elastic,
+                                       Test.database.elastic_domain_field,
+                                       nglob, ndim, tolerance);
+      }
+
+      if (Test.database.acoustic_domain_field != "NULL") {
+        specfem::kokkos::HostView1d<type_real, Kokkos::LayoutLeft>
+            field_acoustic = Kokkos::subview(
+                acoustic_domain_static.get_host_field(), Kokkos::ALL(), 0);
+
+        type_real tolerance = 0.01;
+
+        specfem::testing::compare_norm(field_acoustic,
+                                       Test.database.acoustic_domain_field,
+                                       nglob, tolerance);
+      }
+
+      std::cout << "--------------------------------------------------\n"
+                << "[PASSED] Test: " << Test.name << "\n"
+                << "--------------------------------------------------\n\n"
+                << std::endl;
+
+    } catch (std::runtime_error &e) {
+      std::cout << " - Error: " << e.what() << std::endl;
+      FAIL() << "--------------------------------------------------\n"
+             << "[FAILED] Test failed\n"
+             << " - Test name: " << Test.name << "\n"
+             << " - Number of MPI processors: "
+             << Test.configuration.number_of_processors << "\n"
+             << " - Error: " << e.what() << "\n"
+             << "--------------------------------------------------\n\n"
+             << std::endl;
+    }
+  }
+}
+
+int main(int argc, char *argv[]) {
+  ::testing::InitGoogleTest(&argc, argv);
+  ::testing::AddGlobalTestEnvironment(new MPIEnvironment);
+  ::testing::AddGlobalTestEnvironment(new KokkosEnvironment);
+  return RUN_ALL_TESTS();
+}
diff --git a/tests/unit-tests/displacement_tests/Newmark/serial/test1/database.bin b/tests/unit-tests/displacement_tests/Newmark/serial/test1/database.bin
new file mode 100644
index 00000000..74013281
Binary files /dev/null and b/tests/unit-tests/displacement_tests/Newmark/serial/test1/database.bin differ
diff --git a/tests/unit-tests/displacement_tests/Newmark/serial/test1/displacement.bin b/tests/unit-tests/displacement_tests/Newmark/serial/test1/displacement.bin
new file mode 100644
index 00000000..7681d7b8
Binary files /dev/null and b/tests/unit-tests/displacement_tests/Newmark/serial/test1/displacement.bin differ
diff --git a/tests/unit-tests/displacement_tests/Newmark/serial/test1/sources.yaml b/tests/unit-tests/displacement_tests/Newmark/serial/test1/sources.yaml
new file mode 100644
index 00000000..ed49a37f
--- /dev/null
+++ b/tests/unit-tests/displacement_tests/Newmark/serial/test1/sources.yaml
@@ -0,0 +1,12 @@
+number-of-sources: 1
+sources:
+  - force:
+      x : 2500.0
+      z : 2500.0
+      source_surf: false
+      angle : 0.0
+      vx : 0.0
+      vz : 0.0
+      Dirac:
+        factor: 1e10
+        tshift: 0.0
diff --git a/tests/unit-tests/displacement_tests/Newmark/serial/test1/specfem_config.yaml b/tests/unit-tests/displacement_tests/Newmark/serial/test1/specfem_config.yaml
new file mode 100644
index 00000000..0ad3fe3d
--- /dev/null
+++ b/tests/unit-tests/displacement_tests/Newmark/serial/test1/specfem_config.yaml
@@ -0,0 +1,50 @@
+parameters:
+
+  header:
+    ## Header information is used for logging. It is good practice to give your simulations explicit names
+    title: Isotropic Elastic simulation # name for your simulation
+    # A detailed description for your simulation
+    description: |
+      Material systems : Elastic domain (1)
+      Interfaces : None
+      Sources : Force source (1)
+      Boundary conditions : Neumann BCs on all edges
+
+  simulation-setup:
+    ## quadrature setup
+    quadrature:
+      alpha: 0.0
+      beta: 0.0
+      ngllx: 5
+      ngllz: 5
+
+    ## Solver setup
+    solver:
+      time-marching:
+        type-of-simulation: forward
+        time-scheme:
+          type: Newmark
+          dt: 1.1e-3
+          nstep: 100
+
+  receivers:
+    stations-file: "../DATA/STATIONS"
+    angle: 0.0
+    seismogram-type:
+      - displacement
+      - velocity
+    nstep_between_samples: 1
+
+  ## Runtime setup
+  run-setup:
+    number-of-processors: 1
+    number-of-runs: 1
+
+  ## databases
+  databases:
+    mesh-database: "../../../tests/unit-tests/displacement_tests/Newmark/serial/test1/database.bin"
+    source-file: "../../../tests/unit-tests/displacement_tests/Newmark/serial/test1/sources.yaml"
+
+  seismogram:
+    seismogram-format: ascii
+    output-folder: "."
diff --git a/tests/unit-tests/displacement_tests/Newmark/serial/test2/database.bin b/tests/unit-tests/displacement_tests/Newmark/serial/test2/database.bin
new file mode 100644
index 00000000..699c950e
Binary files /dev/null and b/tests/unit-tests/displacement_tests/Newmark/serial/test2/database.bin differ
diff --git a/tests/unit-tests/displacement_tests/Newmark/serial/test2/potential_acoustic.bin b/tests/unit-tests/displacement_tests/Newmark/serial/test2/potential_acoustic.bin
new file mode 100644
index 00000000..a626c09e
Binary files /dev/null and b/tests/unit-tests/displacement_tests/Newmark/serial/test2/potential_acoustic.bin differ
diff --git a/tests/unit-tests/displacement_tests/Newmark/serial/test2/sources.yaml b/tests/unit-tests/displacement_tests/Newmark/serial/test2/sources.yaml
new file mode 100644
index 00000000..ed49a37f
--- /dev/null
+++ b/tests/unit-tests/displacement_tests/Newmark/serial/test2/sources.yaml
@@ -0,0 +1,12 @@
+number-of-sources: 1
+sources:
+  - force:
+      x : 2500.0
+      z : 2500.0
+      source_surf: false
+      angle : 0.0
+      vx : 0.0
+      vz : 0.0
+      Dirac:
+        factor: 1e10
+        tshift: 0.0
diff --git a/tests/unit-tests/displacement_tests/Newmark/serial/test2/specfem_config.yaml b/tests/unit-tests/displacement_tests/Newmark/serial/test2/specfem_config.yaml
new file mode 100644
index 00000000..cee965ee
--- /dev/null
+++ b/tests/unit-tests/displacement_tests/Newmark/serial/test2/specfem_config.yaml
@@ -0,0 +1,51 @@
+parameters:
+
+  header:
+    ## Header information is used for logging. It is good practice to give your simulations explicit names
+    title: Isotropic Elastic simulation # name for your simulation
+    # A detailed description for your simulation
+    description: |
+      Material systems : Elastic domain (1)
+      Interfaces : None
+      Sources : Force source (1)
+      Boundary conditions : Neumann BCs on all edges
+
+  simulation-setup:
+    ## quadrature setup
+    quadrature:
+      alpha: 0.0
+      beta: 0.0
+      ngllx: 5
+      ngllz: 5
+
+    ## Solver setup
+    solver:
+      time-marching:
+        type-of-simulation: forward
+        time-scheme:
+          type: Newmark
+          dt: 1.1e-3
+          nstep: 100
+
+  receivers:
+    stations-file: "../DATA/STATIONS"
+    angle: 0.0
+    seismogram-type:
+      - displacement
+      - velocity
+    nstep_between_samples: 1
+
+  ## Runtime setup
+  run-setup:
+    number-of-processors: 1
+    number-of-runs: 1
+
+  ## databases
+  databases:
+    mesh-database: "../../../tests/unit-tests/displacement_tests/Newmark/serial/test2/database.bin"
+    source-file: "../../../tests/unit-tests/displacement_tests/Newmark/serial/test2/sources.yaml"
+
+  # seismogram output
+  seismogram:
+    seismogram-format: ascii
+    output-folder: "."
diff --git a/tests/unit-tests/displacement_tests/Newmark/serial/test3/displacement.bin b/tests/unit-tests/displacement_tests/Newmark/serial/test3/displacement.bin
new file mode 100644
index 00000000..a90bd2d4
Binary files /dev/null and b/tests/unit-tests/displacement_tests/Newmark/serial/test3/displacement.bin differ
diff --git a/tests/unit-tests/displacement_tests/Newmark/serial/test3/potential_acoustic.bin b/tests/unit-tests/displacement_tests/Newmark/serial/test3/potential_acoustic.bin
new file mode 100644
index 00000000..2b0919ff
Binary files /dev/null and b/tests/unit-tests/displacement_tests/Newmark/serial/test3/potential_acoustic.bin differ
diff --git a/tests/unit-tests/displacement_tests/Newmark/serial/test3/sources.yaml b/tests/unit-tests/displacement_tests/Newmark/serial/test3/sources.yaml
new file mode 100644
index 00000000..b80f80b6
--- /dev/null
+++ b/tests/unit-tests/displacement_tests/Newmark/serial/test3/sources.yaml
@@ -0,0 +1,12 @@
+number-of-sources: 1
+sources:
+  - force:
+      x : 1575.0
+      z : 2900.0
+      source_surf: false
+      angle : 0.0
+      vx : 0.0
+      vz : 0.0
+      Dirac:
+        factor: 1e9
+        tshift: 0.0
diff --git a/tests/unit-tests/displacement_tests/Newmark/test_config.yaml b/tests/unit-tests/displacement_tests/Newmark/test_config.yaml
new file mode 100644
index 00000000..1d1e6a9b
--- /dev/null
+++ b/tests/unit-tests/displacement_tests/Newmark/test_config.yaml
@@ -0,0 +1,28 @@
+Tests:
+  - name : "SerialTest1 : Homogeneous elastic domain"
+    description: >
+      Testing newmark time-marching solver on a homogeneous elastic domain with no interfaces. Test is run on a single MPI process.
+    config:
+      nproc : 1
+    databases:
+      specfem_config: "../../../tests/unit-tests/displacement_tests/Newmark/serial/test1/specfem_config.yaml"
+      elastic_domain_field: "../../../tests/unit-tests/displacement_tests/Newmark/serial/test1/displacement.bin"
+
+  - name : "SerialTest2 : Homogeneous acoustic domain"
+    description: >
+      Testing newmark time-marching solver on a homogeneous acoustic domain with no interfaces. Test is run on a single MPI process.
+    config:
+      nproc : 1
+    databases:
+      specfem_config: "../../../tests/unit-tests/displacement_tests/Newmark/serial/test2/specfem_config.yaml"
+      acoustic_domain_field: "../../../tests/unit-tests/displacement_tests/Newmark/serial/test2/potential_acoustic.bin"
+
+  - name : "SerialTest3 : Acoustic-Elastic coupled domain"
+    description: >
+      Testing newmark time-marching solver on a coupled acoustic-elastic domain with 1 elastic-acoustic interface. Test is run on a single MPI process.
+    config:
+      nproc : 1
+    databases:
+      specfem_config: "../../../tests/unit-tests/displacement_tests/Newmark/serial/test3/specfem_config.yaml"
+      acoustic_domain_field: "../../../tests/unit-tests/displacement_tests/Newmark/serial/test3/potential_acoustic.bin"
+      elastic_domain_field: "../../../tests/unit-tests/displacement_tests/Newmark/serial/test3/displacement.bin"