From c68a64745e1ad99cb047286434cfda1e1b7aedc7 Mon Sep 17 00:00:00 2001
From: Varun Agrawal <varagrawal@gmail.com>
Date: Tue, 3 Nov 2020 14:27:05 -0500
Subject: [PATCH] add test

---
 gtsam/base/tests/testMatrix.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/gtsam/base/tests/testMatrix.cpp b/gtsam/base/tests/testMatrix.cpp
index 468e842f2..15087093a 100644
--- a/gtsam/base/tests/testMatrix.cpp
+++ b/gtsam/base/tests/testMatrix.cpp
@@ -1163,6 +1163,19 @@ TEST(Matrix , IsVectorSpace) {
   BOOST_CONCEPT_ASSERT((IsVectorSpace<Vector5>));
 }
 
+TEST(Matrix, AbsoluteError) {
+  double a = 2000, b = 1997, tol=1e-1;
+  bool isEqual;
+
+  // Test absolute error
+  isEqual = fpEqual(a, b, tol, true);
+  EXPECT(isEqual == false);
+
+  // Test relative error
+  isEqual = fpEqual(a, b, tol, false);
+  EXPECT(isEqual == true);
+}
+
 /* ************************************************************************* */
 int main() {
   TestResult tr;