Added test for istream.

tests/operators/CMakeLists.txt

@@ -7,4 +7,4 @@ foreach(testsourcefile ${TEST_SOURCES})
     add_test(${testname} ${testname})
 endforeach()
 
-file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/input.txt DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/input.txt)
+file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/input.txt DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/)

tests/operators/input.txt

@@ -1,14 +1 @@
-1
-100
-10000
-100000000
-10000000000000000
-100000000000000000000000000000000
-100000000000000000000000000000000000000000000000000000000000000000
-99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999
-1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
--10000000000000000000000000
--1122178617862763873649236587264782365872467823
--149023932491
--34873298478923748973289476592365782689523657926958326459823659726598237503297598246583657924628934928357891
--26589237985678256786763278562876389472836578264892365427961
+1,100,10000,100000000,10000000000000000,100000000000000000000000000000000,100000000000000000000000000000000000000000000000000000000000000000,99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999,1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000,-10000000000000000000000000,-1122178617862763873649236587264782365872467823,-149023932491,-34873298478923748973289476592365782689523657926958326459823659726598237503297598246583657924628934928357891,-26589237985678256786763278562876389472836578264892365427961

tests/operators/istream_test.cpp

@@ -0,0 +1,31 @@
+#include <cassert>
+#include <fstream>
+#include <iostream>
+#include <sstream>
+
+#include <bigint.hpp>
+
+int main()
+{
+    std::ifstream f("input.txt");
+    std::string line;
+
+    if (f.is_open())
+    {
+        while (std::getline(f, line, ','))
+        {
+            std::stringstream buffer;
+            libbig::largeInt a;
+
+            buffer << line; 
+            buffer >> a;
+            assert(a == libbig::largeInt(line));
+            buffer.str(std::string());
+        }
+        f.close();
+    } else {
+        throw std::runtime_error("Couldn't open input.txt");
+    }
+
+    return 0;
+}

tests/operators/ostream_test.cpp

@@ -14,7 +14,7 @@ int main()
 
     if (f.is_open())
     {
-        while (std::getline(f, line))
+        while (std::getline(f, line, ','))
         {
             a = libbig::largeInt(line);
             buffer << a;