From 02c71eb270e18d17714e22610485e70ec61c2c5e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?St=C3=A9phane=20Adjemian=20=28Charybdis=29?=
 <stephane.adjemian@univ-lemans.fr>
Date: Wed, 16 Dec 2015 15:24:44 +0100
Subject: [PATCH] Renamed and changed integration test for sim1_purely_backward
 routine.

Compare the solution returned by sim1_purely_backward with the true solution.
---
 tests/Makefile.am                             |  2 +-
 .../deterministic_model_purely_backward.mod   | 27 ----------------
 .../purely_backward/ar1.mod                   | 32 +++++++++++++++++++
 3 files changed, 33 insertions(+), 28 deletions(-)
 delete mode 100644 tests/deterministic_simulations/deterministic_model_purely_backward.mod
 create mode 100644 tests/deterministic_simulations/purely_backward/ar1.mod

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 5d1dcab53..ea1725e7c 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -215,7 +215,7 @@ MODFILES = \
 	ep/rbcii.mod \
 	ep/linearmodel.mod \
 	deterministic_simulations/deterministic_model_purely_forward.mod \
-	deterministic_simulations/deterministic_model_purely_backward.mod \
+	deterministic_simulations/purely_backward/ar1.mod \
 	deterministic_simulations/rbc_det1.mod \
 	deterministic_simulations/rbc_det2.mod \
 	deterministic_simulations/rbc_det3.mod \
diff --git a/tests/deterministic_simulations/deterministic_model_purely_backward.mod b/tests/deterministic_simulations/deterministic_model_purely_backward.mod
deleted file mode 100644
index 89d8014dc..000000000
--- a/tests/deterministic_simulations/deterministic_model_purely_backward.mod
+++ /dev/null
@@ -1,27 +0,0 @@
-var y;
-varexo eps;
-parameters rho1 rho2;
-
-rho1 = 0.1;
-
-rho2 = 0.2;
-
-model;
-log(y) = rho1*log(y(-1)) + rho2*log(y(-2)) + eps;
-end;
-
-initval;
-y=1;
-eps=0;
-end;
-
-steady;
-check;
-
-shocks;
-var eps;
-periods 1:9;
-values -0.0104;
-end;
-
-simul(periods=100);
diff --git a/tests/deterministic_simulations/purely_backward/ar1.mod b/tests/deterministic_simulations/purely_backward/ar1.mod
new file mode 100644
index 000000000..c4ea3299d
--- /dev/null
+++ b/tests/deterministic_simulations/purely_backward/ar1.mod
@@ -0,0 +1,32 @@
+var y;
+
+varexo eps;
+
+parameters rho;
+
+rho = 0.9;
+
+model;
+    y = y(-1)^rho*exp(eps);
+end;
+
+initval;
+    y = 1;
+    eps = 0;
+end;
+
+steady;
+
+check;
+
+shocks;
+    var eps;
+    periods 1;
+    values 1;
+end;
+
+simul(periods=10);
+
+if max(abs(y-[1; exp(cumprod([1; rho*ones(9, 1)]))]))>options_.dynatol.x
+    error('Wrong solution!')
+end