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#include "gtest/gtest.h"
#include "storm-config.h"
#include "src/parser/PrismParser.h"
#include "src/models/sparse/Dtmc.h"
#include "src/builder/ExplicitPrismModelBuilder.h"
#include "src/utility/graph.h"
#include "src/utility/shortestPaths.cpp"
// NOTE: The KSPs / distances of these tests were generated by the
// KSP-Generator itself and checked for gross implausibility, but no
// more than that.
// An independent verification of the values would be really nice ...
TEST(KSPTest, dijkstra) {
storm::prism::Program program = storm::parser::PrismParser::parse(STORM_CPP_TESTS_BASE_PATH "/functional/builder/brp-16-2.pm");
std::shared_ptr<storm::models::sparse::Model<double>> model = storm::builder::ExplicitPrismModelBuilder<double>().translateProgram(program);
storm::storage::sparse::state_type testState = 300;
storm::utility::ksp::ShortestPathsGenerator<double> spg(model, testState);
double dist = spg.getDistance(1);
EXPECT_DOUBLE_EQ(0.015859334652581887, dist);
}
TEST(KSPTest, singleTarget) {
storm::prism::Program program = storm::parser::PrismParser::parse(STORM_CPP_TESTS_BASE_PATH "/functional/builder/brp-16-2.pm");
std::shared_ptr<storm::models::sparse::Model<double>> model = storm::builder::ExplicitPrismModelBuilder<double>().translateProgram(program);
storm::storage::sparse::state_type testState = 300;
storm::utility::ksp::ShortestPathsGenerator<double> spg(model, testState);
double dist = spg.getDistance(100);
EXPECT_DOUBLE_EQ(1.5231305000339649e-06, dist);
}
TEST(KSPTest, reentry) {
storm::prism::Program program = storm::parser::PrismParser::parse(STORM_CPP_TESTS_BASE_PATH "/functional/builder/brp-16-2.pm");
std::shared_ptr<storm::models::sparse::Model<double>> model = storm::builder::ExplicitPrismModelBuilder<double>().translateProgram(program);
storm::storage::sparse::state_type testState = 300;
storm::utility::ksp::ShortestPathsGenerator<double> spg(model, testState);
double dist = spg.getDistance(100);
EXPECT_DOUBLE_EQ(1.5231305000339649e-06, dist);
// get another distance to ensure re-entry is no problem
double dist2 = spg.getDistance(500);
EXPECT_DOUBLE_EQ(3.0462610000679282e-08, dist2);
}
TEST(KSPTest, groupTarget) {
storm::prism::Program program = storm::parser::PrismParser::parse(STORM_CPP_TESTS_BASE_PATH "/functional/builder/brp-16-2.pm");
std::shared_ptr<storm::models::sparse::Model<double>> model = storm::builder::ExplicitPrismModelBuilder<double>().translateProgram(program);
auto groupTarget = storm::utility::ksp::state_list_t{50, 90};
auto spg = storm::utility::ksp::ShortestPathsGenerator<double>(model, groupTarget);
// this path should lead to 90
double dist1 = spg.getDistance(8);
EXPECT_DOUBLE_EQ(7.3796982335999988e-06, dist1);
// this one to 50
double dist2 = spg.getDistance(9);
EXPECT_DOUBLE_EQ(3.92e-06, dist2);
// this one to 90 again
double dist3 = spg.getDistance(12);
EXPECT_DOUBLE_EQ(3.6160521344640002e-06, dist3);
}
TEST(KSPTest, kTooLargeException) {
storm::prism::Program program = storm::parser::PrismParser::parse(STORM_CPP_TESTS_BASE_PATH "/functional/builder/brp-16-2.pm");
std::shared_ptr<storm::models::sparse::Model<double>> model = storm::builder::ExplicitPrismModelBuilder<double>().translateProgram(program);
storm::storage::sparse::state_type testState = 1;
storm::utility::ksp::ShortestPathsGenerator<double> spg(model, testState);
ASSERT_THROW(spg.getDistance(2), std::invalid_argument);
}
TEST(KSPTest, kspStateSet) {
storm::prism::Program program = storm::parser::PrismParser::parse(STORM_CPP_TESTS_BASE_PATH "/functional/builder/brp-16-2.pm");
std::shared_ptr<storm::models::sparse::Model<double>> model = storm::builder::ExplicitPrismModelBuilder<double>().translateProgram(program);
storm::storage::sparse::state_type testState = 300;
storm::utility::ksp::ShortestPathsGenerator<double> spg(model, testState);
storm::storage::BitVector referenceBV(model->getNumberOfStates(), false);
for (auto s : storm::utility::ksp::state_list_t{300, 293, 285, 279, 271, 265, 259, 252, 244, 237, 229, 223, 217, 210, 202, 195, 187, 181, 175, 168, 160, 153, 145, 139, 133, 126, 118, 111, 103, 97, 91, 84, 76, 69, 61, 55, 49, 43, 35, 41, 32, 25, 19, 14, 10, 7, 4, 2, 1, 0}) {
referenceBV.set(s, true);
}
auto bv = spg.getStates(7);
EXPECT_EQ(bv, referenceBV);
}
TEST(KSPTest, kspPathAsList) {
storm::prism::Program program = storm::parser::PrismParser::parse(STORM_CPP_TESTS_BASE_PATH "/functional/builder/brp-16-2.pm");
std::shared_ptr<storm::models::sparse::Model<double>> model = storm::builder::ExplicitPrismModelBuilder<double>().translateProgram(program);
storm::storage::sparse::state_type testState = 300;
storm::utility::ksp::ShortestPathsGenerator<double> spg(model, testState);
// TODO: use path that actually has a loop or something to make this more interesting
auto reference = storm::utility::ksp::state_list_t{300, 293, 285, 279, 271, 265, 259, 252, 244, 237, 229, 223, 217, 210, 202, 195, 187, 181, 175, 168, 160, 153, 145, 139, 133, 126, 118, 111, 103, 97, 91, 84, 76, 69, 61, 55, 49, 43, 35, 41, 32, 25, 19, 14, 10, 7, 4, 2, 1, 0};
auto list = spg.getPathAsList(7);
EXPECT_EQ(list, reference);
}