diff --git a/mock/src/test/resources/acc_polars.csv b/mock/src/test/resources/acc_polars.csv
new file mode 100644
index 00000000..ee7ea80e
--- /dev/null
+++ b/mock/src/test/resources/acc_polars.csv
@@ -0,0 +1,8 @@
+Tws,Twa0,Bsp0,Twa1,Bsp1,UpTwa,UpBsp,Twa2,Bsp2,Twa3,Bsp3,Twa4,Bsp4,Twa5,Bsp5,Twa6,Bsp6,DnTwa,DnBsp,Twa7,Bsp7
+4,0,0,30,4,45,8,60,9,75,10,90,10,115,10,145,10,155,10,175,4
+8,0,0,30,7,43,10,60,11,75,11,90,11,115,12,145,12,153,12,175,10
+12,0,0,30,11,43,14.4,60,16,75,20,90,23,115,24,145,23,153,21.6,175,14
+16,0,0,30,12,42,19.2,60,25,75,27,90,31,115,32,145,30,153,28.8,175,20
+20,0,0,30,13,41,24,60,29,75,37,90,39,115,40,145,38,153,36,175,24
+25,0,0,30,15,40,30,60,38,75,44,90,49,115,50,145,49,151,47,175,30
+30,0,0,30,15,42,30,60,37,75,42,90,48,115,49,145,48,150,46,175,32