1 files changed, 85 insertions, 0 deletions
diff --git a/src/common/test/test_distance_matrix_reader.cpp b/src/common/test/test_distance_matrix_reader.cpp
new file mode 100644
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+++ b/src/common/test/test_distance_matrix_reader.cpp
@@ -0,0 +1,85 @@
+/*    This file is part of the Gudhi Library. The Gudhi library
+ *    (Geometric Understanding in Higher Dimensions) is a generic C++
+ *    library for computational topology.
+ *
+ *    Author(s):       Vincent Rouvreau
+ *
+ *    Copyright (C) 2016  INRIA
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <gudhi/reader_utils.h>
+
+#include <iostream>
+#include <string>
+#include <vector>
+
+#define BOOST_TEST_DYN_LINK
+#define BOOST_TEST_MODULE "distance_matrix_reader"
+#include <boost/test/unit_test.hpp>
+
+using Distance_matrix = std::vector<std::vector<double>>;
+
+BOOST_AUTO_TEST_CASE( lower_triangular_distance_matrix )
+{
+  Distance_matrix from_lower_triangular;
+  // Read lower_triangular_distance_matrix.csv file where the separator is a ','
+  from_lower_triangular = read_lower_triangular_matrix_from_csv_file<double>("lower_triangular_distance_matrix.csv",
+                                                                             ',');
+  for (auto& i : from_lower_triangular) {
+    for (auto j : i) {
+      std::cout << j << " ";
+    }
+    std::cout << std::endl;
+  }
+  std::cout << "from_lower_triangular size = " << from_lower_triangular.size() << std::endl;
+  BOOST_CHECK(from_lower_triangular.size() == 5);
+
+  for (std::size_t i = 0; i < from_lower_triangular.size(); i++) {
+    std::cout << "from_lower_triangular[" << i << "] size = " << from_lower_triangular[i].size() << std::endl;
+    BOOST_CHECK(from_lower_triangular[i].size() == i);
+  }
+  std::vector<double> expected = {1};
+  BOOST_CHECK(from_lower_triangular[1] == expected);
+  
+  expected = {2,3};
+  BOOST_CHECK(from_lower_triangular[2] == expected);
+  
+  expected = {4,5,6};
+  BOOST_CHECK(from_lower_triangular[3] == expected);
+  
+  expected = {7,8,9,10};
+  BOOST_CHECK(from_lower_triangular[4] == expected);
+  
+}
+
+BOOST_AUTO_TEST_CASE( full_square_distance_matrix )
+{
+  Distance_matrix from_full_square;
+  // Read full_square_distance_matrix.csv file where the separator is the default one ';'
+  from_full_square = read_lower_triangular_matrix_from_csv_file<double>("full_square_distance_matrix.csv");
+  for (auto& i : from_full_square) {
+    for (auto j : i) {
+      std::cout << j << " ";
+    }
+    std::cout << std::endl;
+  }
+  std::cout << "from_full_square size = " << from_full_square.size() << std::endl;
+  BOOST_CHECK(from_full_square.size() == 7);
+  for (std::size_t i = 0; i < from_full_square.size(); i++) {
+    std::cout << "from_full_square[" << i << "] size = " << from_full_square[i].size() << std::endl;
+    BOOST_CHECK(from_full_square[i].size() == i);
+  }  
+}