X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Faga%2Ftest%2Fapi-bellman_ford.c;h=5dc032a77bbf7c7d5960465c26d01caea2a27b8d;hp=e0ce1a067822bad31e32377e110e8a39f06eb5d1;hb=318edb2466a24a2eadcfd05fa83ae29c0e8aae03;hpb=eedf1079f38efb2b8dc4fd3f516cce8ac1272c06

diff --git a/ccan/aga/test/api-bellman_ford.c b/ccan/aga/test/api-bellman_ford.c
index e0ce1a06..5dc032a7 100644
--- a/ccan/aga/test/api-bellman_ford.c
+++ b/ccan/aga/test/api-bellman_ford.c
@@ -246,12 +246,24 @@ static void test_shortcut2(void)
 	aga_finish(&s2g.sg.g);
 }
 
+static void test_negacycle(void)
+{
+	struct negacycle_graph ng;
+
+	negacycle_graph_init(&ng);
+
+	ok1(aga_bellman_ford_start(&ng.sg.g, &ng.sg.nodes[1]) == 0);
+	aga_bellman_ford_complete(&ng.sg.g);
+	ok1(aga_error(&ng.sg.g) == AGA_ERR_NEGATIVE_COST);
+	aga_finish(&ng.sg.g);
+}
+
 int main(void)
 {
 	plan_tests(5 + 15
 		   + FULL_LEN * (1 + FULL_LEN * 4)
 		   + CHAIN_LEN * (1 + CHAIN_LEN * 2)
-		   + 10 + 32 + 7 + 7);
+		   + 10 + 32 + 7 + 7 + 2);
 
 	test_trivial();
 	test_parallel();
@@ -261,6 +273,7 @@ int main(void)
 	test_traversal1();
 	test_shortcut1();
 	test_shortcut2();
+	test_negacycle();
 	
 	return exit_status();
 }