⏪ reverted git submodules

Author: BertiFlorea

test/algorithms/test_entanglement.cpp

@@ -1,5 +1,6 @@
 #include "algorithms/Entanglement.hpp"
 #include "dd/FunctionalityConstruction.hpp"
+#include "dd/Simulation.hpp"
 
 #include "gtest/gtest.h"
 #include <string>
@@ -33,3 +34,14 @@ TEST_P(Entanglement, FunctionTest) {
   ASSERT_EQ(r.getValueByPath(std::string(nq, '0')), dd::SQRT2_2);
   ASSERT_EQ(r.getValueByPath(std::string(nq, '1')), dd::SQRT2_2);
 }
+
+TEST_P(Entanglement, GHZRoutineFunctionTest) {
+  const auto nq = GetParam();
+
+  auto qc = qc::Entanglement(nq);
+  auto dd = std::make_unique<dd::Package<>>(nq);
+  const dd::VectorDD e = simulate(&qc, dd->makeZeroState(qc.getNqubits()), dd);
+  const auto f = dd->makeGHZState(nq);
+
+  EXPECT_EQ(e, f);
+}

test/algorithms/test_wstate.cpp

@@ -40,3 +40,14 @@ TEST_P(WState, FunctionTest) {
     EXPECT_TRUE(measurements.find(result) != measurements.end());
   }
 }
+
+TEST_P(WState, RoutineFunctionTest) {
+  const auto nq = GetParam();
+
+  auto qc = qc::WState(nq);
+  auto dd = std::make_unique<dd::Package<>>(qc.getNqubits());
+  const dd::VectorDD e = simulate(&qc, dd->makeZeroState(qc.getNqubits()), dd);
+  const auto f = dd->makeWState(nq);
+
+  EXPECT_EQ(e, f);
+}

test/dd/test_state_preparation.cpp

@@ -4,7 +4,7 @@
 
 class StatePreparation : public testing::TestWithParam<qc::Qubit> {};
 
-extern std::vector<std::string> generateWStateStrings(const std::size_t length);
+extern std::vector<std::string> generateWStateStrings(std::size_t length);
 
 INSTANTIATE_TEST_SUITE_P(
     StatePreparation, StatePreparation, testing::Range<qc::Qubit>(1U, 128U, 7U),
@@ -32,7 +32,7 @@ TEST_P(StatePreparation, WStateTest) {
   const auto w = dd->makeWState(nq);
   for (const auto& wStateString : generateWStateStrings(nq)) {
     EXPECT_NEAR(w.getValueByPath(wStateString).real(), 1. / std::sqrt(nq),
-                0.000001);
+                dd::RealNumber::eps);
     EXPECT_EQ(w.getValueByPath(wStateString).imag(), 0.);
   }
 }