update comment in test_path()

1 files changed, 3 insertions, 1 deletions

diff --git a/src/test.c b/src/test.c
index 3bd8c5c..b9a27ad 100644
--- a/src/test.c
+++ b/src/test.c
@@ -479,7 +479,9 @@ double getKineticEnergy(double x, void *params)
 
 int test_path(char *err)
 {
-    /* Tests the logsumexp() function. */
+    /* Test the path code. This just does a basic check that when we create a
+     * path without any KL coefficients, it is correctly rotated and
+     * positioned. */
     int i, j, k;
     double pos0[3], dir0[3], T0, range, m;
     double beta, t;