Changes in test/preflow_test.cc [423:ff48c2738fb2:394:e7707b3069f1] in lemon-main

File:

• test/preflow_test.cc (modified) (3 diffs)

test/preflow_test.cc

@@ -17 +17 @@
  */
 
-#include <iostream>
+#include <fstream>
+#include <string>
 
 #include "test_tools.h"
@@ -28 +29 @@
 
 using namespace lemon;
-
-char test_lgf[] =
-  "@nodes\n"
-  "label\n"
-  "0\n"
-  "1\n"
-  "2\n"
-  "3\n"
-  "4\n"
-  "5\n"
-  "6\n"
-  "7\n"
-  "8\n"
-  "9\n"
-  "@arcs\n"
-  "    label capacity\n"
-  "0 1 0     20\n"
-  "0 2 1     0\n"
-  "1 1 2     3\n"
-  "1 2 3     8\n"
-  "1 3 4     8\n"
-  "2 5 5     5\n"
-  "3 2 6     5\n"
-  "3 5 7     5\n"
-  "3 6 8     5\n"
-  "4 3 9     3\n"
-  "5 7 10    3\n"
-  "5 6 11    10\n"
-  "5 8 12    10\n"
-  "6 8 13    8\n"
-  "8 9 14    20\n"
-  "8 1 15    5\n"
-  "9 5 16    5\n"
-  "@attributes\n"
-  "source 1\n"
-  "target 8\n";
 
 void checkPreflowCompile()
@@ -159 +124 @@
   typedef Preflow<Digraph, CapMap> PType;
 
+  std::string f_name;
+  if( getenv("srcdir") )
+    f_name = std::string(getenv("srcdir"));
+  else f_name = ".";
+  f_name += "/test/preflow_graph.lgf";
+
+  std::ifstream file(f_name.c_str());
+
+  check(file, "Input file '" << f_name << "' not found.");
+
   Digraph g;
   Node s, t;
   CapMap cap(g);
-  std::istringstream input(test_lgf);
-  DigraphReader<Digraph>(g,input).
+  DigraphReader<Digraph>(g,file).
     arcMap("capacity", cap).
     node("source",s).