move mpi tests to measurement base class

pennylane_lightning/core/src/simulators/lightning_gpu/measurements/tests/mpi/Test_StateVectorCudaMPI_Measure.cpp

@@ -189,110 +189,6 @@ TEMPLATE_TEST_CASE("Expected Values", "[MeasurementsMPI]", float, double) {
                                 LightningException,
                                 "Currently unsupported observable");
     }
-
-    SECTION("Testing for expval with obs & shots PauliX") {
-        std::vector<PrecisionT> exp_values;
-        std::vector<PrecisionT> exp_values_ref;
-
-        size_t num_shots = 10000;
-        std::vector<size_t> shots_range = {};
-        size_t num_qubits = 3;
-
-        for(size_t i = 0; i < num_qubits; i++){
-            StateVectorT sv(mpi_manager, dt_local, mpi_buffersize, nGlobalIndexBits,
-                        nLocalIndexBits);
-            sv.CopyHostDataToGpu(sv_data_local.data(), sv_data_local.size(), false);
-            mpi_manager.Barrier();
-
-            MeasurementsMPI<StateVectorT> Measurer(sv);
-            mpi_manager.Barrier();
-
-            NamedObsMPI<StateVectorT> obs("PauliX", {i});
-            auto expval_shot = Measurer.expval(obs, num_shots, shots_range);
-            exp_values.push_back(expval_shot);
-        }
-        exp_values_ref = {0.49272486, 0.42073549, 0.28232124};
-
-        REQUIRE_THAT(exp_values, Catch::Approx(exp_values_ref).margin(5e-2));
-    }
-
-    SECTION("Testing for expval with obs & shots PauliY") {
-        std::vector<PrecisionT> exp_values;
-        std::vector<PrecisionT> exp_values_ref;
-
-        size_t num_shots = 10000;
-        std::vector<size_t> shots_range = {};
-        size_t num_qubits = 3;
-
-        for(size_t i = 0; i < num_qubits; i++){
-            StateVectorT sv(mpi_manager, dt_local, mpi_buffersize, nGlobalIndexBits,
-                        nLocalIndexBits);
-            sv.CopyHostDataToGpu(sv_data_local.data(), sv_data_local.size(), false);
-            mpi_manager.Barrier();
-
-            MeasurementsMPI<StateVectorT> Measurer(sv);
-            mpi_manager.Barrier();
-
-            NamedObs<StateVectorT> obs("PauliY", {i});
-            auto expval_shot = Measurer.expval(obs, num_shots, shots_range);
-            exp_values.push_back(expval_shot);
-        }
-        exp_values_ref = {-0.64421768, -0.47942553, -0.29552020};
-
-        REQUIRE_THAT(exp_values, Catch::Approx(exp_values_ref).margin(5e-2));
-    }
-
-    SECTION("Testing for expval with obs & shots PauliZ") {
-        std::vector<PrecisionT> exp_values;
-        std::vector<PrecisionT> exp_values_ref;
-
-        size_t num_shots = 10000;
-        std::vector<size_t> shots_range = {};
-        size_t num_qubits = 3;
-
-        for(size_t i = 0; i < num_qubits; i++){
-            StateVectorT sv(mpi_manager, dt_local, mpi_buffersize, nGlobalIndexBits,
-                        nLocalIndexBits);
-            sv.CopyHostDataToGpu(sv_data_local.data(), sv_data_local.size(), false);
-            mpi_manager.Barrier();
-
-            MeasurementsMPI<StateVectorT> Measurer(sv);
-            mpi_manager.Barrier();
-
-            NamedObs<StateVectorT> obs("PauliZ", {i});
-            auto expval_shot = Measurer.expval(obs, num_shots, shots_range);
-            exp_values.push_back(expval_shot);
-        }
-        exp_values_ref = {0.58498357, 0.77015115, 0.91266780};
-
-        REQUIRE_THAT(exp_values, Catch::Approx(exp_values_ref).margin(5e-2));
-    }
-
-    SECTION("Testing for expval with obs & shots Hadamard") {
-        std::vector<PrecisionT> exp_values;
-        std::vector<PrecisionT> exp_values_ref;
-
-        size_t num_shots = 10000;
-        std::vector<size_t> shots_range = {};
-        size_t num_qubits = 3;
-
-        for(size_t i = 0; i < num_qubits; i++){
-            StateVectorT sv(mpi_manager, dt_local, mpi_buffersize, nGlobalIndexBits,
-                        nLocalIndexBits);
-            sv.CopyHostDataToGpu(sv_data_local.data(), sv_data_local.size(), false);
-            mpi_manager.Barrier();
-
-            MeasurementsMPI<StateVectorT> Measurer(sv);
-            mpi_manager.Barrier();
-
-            NamedObs<StateVectorT> obs("Hadamard", {i});
-            auto expval_shot = Measurer.expval(obs, num_shots, shots_range);
-            exp_values.push_back(expval_shot);
-        }
-        exp_values_ref = {0.7620549436, 0.8420840225, 0.8449848566};
-
-        REQUIRE_THAT(exp_values, Catch::Approx(exp_values_ref).margin(5e-2));
-    }
 }
 
 TEMPLATE_TEST_CASE("Pauliwords base on expval", "[MeasurementsMPI]", float,