X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=t%2Fdistance.c;h=c3ff1cc2a57b0673256c9e1c5bee8f3f057d0a68;hb=5011228dceecadb0c1ed94c2635d6c0342e2af48;hp=0f3ef9792b3ecf779c12e5b727bf072e6fbcd3d2;hpb=8f632e5a3428101590e8cbe94025060c5c3b5ecf;p=hexagon

diff --git a/t/distance.c b/t/distance.c
index 0f3ef97..c3ff1cc 100644
--- a/t/distance.c
+++ b/t/distance.c
@@ -1,4 +1,4 @@
-#include "hexmap.h"
+#include "hexagon.h"
 
 #include "tap.h"
 
@@ -8,18 +8,21 @@ void dcheck(int x1, int y1, int x2, int y2, int expect) {
 	to = HL_cantor_xy(x2,y2);
 	dist = HL_distance(from,to);
 	ok(dist == expect,
-		"distance from (%02d, %02d) to (%02d, %02d) = %d (expect %d)\n",
+		"distance from (%02d, %02d) to (%02d, %02d) = %d (expect %d)",
 		x1, y1, x2, y2, dist, expect);
 }
 
 int main(void) {
-	plan_tests(5);
+	plan_tests(8);
 
 	dcheck(1,1,2,1,1);
 	dcheck(1,1,2,2,2);
 	dcheck(2,2,2,1,1);
 	dcheck(1,1,2,3,3);
 	dcheck(3,3,3,3,0);
+	dcheck(0,0,1,1,1);
+	dcheck(-1,-1,1,2,4);
+	dcheck(-1,-1,-1,-2,1);
 
 	return exit_status();
 }