From d678794b1871649bb9253c5279f0108a598179c3 Mon Sep 17 00:00:00 2001
From: Ryan Levy <ryle@umich.edu>
Date: Fri, 6 May 2016 13:10:37 -0400
Subject: [PATCH] test: check read in of external data file

---
 test/parmsTest.cpp        | 23 +++++++++++++++++++++++
 test/write_test_files.hpp | 10 +++++-----
 2 files changed, 28 insertions(+), 5 deletions(-)

diff --git a/test/parmsTest.cpp b/test/parmsTest.cpp
index c0394cd..e54a703 100644
--- a/test/parmsTest.cpp
+++ b/test/parmsTest.cpp
@@ -71,6 +71,29 @@ TEST(Parameters,DataInParam){
   boost::filesystem::remove(pf);
 }
 
+TEST(Parameters,DataInFile){
+std::string pf=alps::temporary_filename("in_file.dat");
+  write_minimal_input_file(pf);
+
+  //fake input
+  alps::params p;
+  MaxEntSimulation::define_parameters(p);
+  p["BETA"]=2;
+  p["DATA"]=pf;
+  p["NDAT"] = 5;
+
+  ContiParameters c(p);
+  EXPECT_EQ(c.ndat(),5);
+  EXPECT_EQ(c.T(),0.5);
+
+  for(int i=0;i<c.ndat();i++){
+    EXPECT_NEAR(c.y(i),(i+1)*0.1,1e-10);
+    EXPECT_EQ(c.sigma(i),0.5);
+  }
+
+  boost::filesystem::remove(pf);
+}
+
 TEST(Parameters,MaxentParams){
     //set up parameters
 	alps::params p;
diff --git a/test/write_test_files.hpp b/test/write_test_files.hpp
index bd9201a..f86695e 100644
--- a/test/write_test_files.hpp
+++ b/test/write_test_files.hpp
@@ -21,11 +21,11 @@ void write_minimal_param_file(const std::string &str){
 }
 void write_minimal_input_file(const std::string &str){
   std::ofstream tmpfile(str.c_str());
-  tmpfile<<0<<" "<<-0.4<<" "<<0.01<<std::endl;
-  tmpfile<<1<<" "<<-0.2<<" "<<0.01<<std::endl;
-  tmpfile<<2<<" "<<-0.2<<" "<<0.01<<std::endl;
-  tmpfile<<3<<" "<<-0.5<<" "<<0.01<<std::endl;
-  tmpfile<<4<<" "<<-0.6<<" "<<0.01<<std::endl;
+  tmpfile<<0<<" "<<0.1<<" "<<0.5<<std::endl;
+  tmpfile<<1<<" "<<0.2<<" "<<0.5<<std::endl;
+  tmpfile<<2<<" "<<0.3<<" "<<0.5<<std::endl;
+  tmpfile<<3<<" "<<0.4<<" "<<0.5<<std::endl;
+  tmpfile<<4<<" "<<0.5<<" "<<0.5<<std::endl;
   tmpfile.close();
 
 }