From 18b779d93b6f2a11ed1b45fcb9dc4f657abd969f Mon Sep 17 00:00:00 2001
From: Ian Hinder <ian.hinder@aei.mpg.de>
Date: Wed, 17 Jul 2013 15:50:46 +0200
Subject: Add test for IfThen factoring

---
 Tests/IfThenTest.m | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 Tests/IfThenTest.m

diff --git a/Tests/IfThenTest.m b/Tests/IfThenTest.m
new file mode 100644
index 0000000..bf1d3b5
--- /dev/null
+++ b/Tests/IfThenTest.m
@@ -0,0 +1,50 @@
+<< "KrancThorn.m";
+
+derivatives = {
+  PDstandard2nd[i_]     -> StandardCenteredDifferenceOperator[1,1,i],
+  PDstandard2nd[i_, i_] -> StandardCenteredDifferenceOperator[2,1,i]};
+
+PD = PDstandard2nd;
+
+groups = {{"evolved_group", {phi, pi}}};
+
+initialSineCalc = {
+  Name      -> "initial_sine",
+  Schedule  -> {"AT initial"},
+  Equations ->
+  {
+    phi -> IfThen[x > 0, Sin[2 Pi (x - t)], 0],
+    pi  -> IfThen[x > 0, -2 Pi Cos[2 Pi (x - t)], 0]
+  }};
+
+evolveCalc = {
+  Name      -> "calc_rhs",
+  Schedule  -> {"IN MoL_CalcRHS"},
+  Where     -> Interior,
+  Equations ->
+  {
+    dot[phi] -> IfThen[alpha>0, pi, 2 pi],
+    dot[pi]  -> IfThen[alpha>0, Euc[ui,uj] PD[phi,li,lj], 2 Euc[ui,uj] PD[phi,li,lj]]
+  }};
+
+CreateKrancThornTT[
+  groups, ".", 
+  "IfThenTest", 
+  PartialDerivatives -> derivatives,
+  RealParameters     -> {alpha},
+  DeclaredGroups     -> {"evolved_group"},
+  Calculations       -> {initialSineCalc, evolveCalc}];
+
+failures = 0;
+
+If[!StringMatchQ[Import["IfThenTest/src/calc_rhs.cc","Text"],
+                 __~~"if (alpha > 0.)"~~__],
+   failures++;
+   Print["Test failed"]];
+
+If[!StringMatchQ[Import["IfThenTest/src/initial_sine.cc","Text"],
+                 __~~"IfThen(xL"~~Whitespace~~">"~~Whitespace~~"0."~~__],
+   failures++;
+   Print["Test failed"]];
+
+Quit[failures]
-- 
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