X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Faga%2Ftest%2Fapi-dijkstra.c;h=01bb5aa4d880f579ea4c60dd3f51a64a14a9657d;hb=318edb2466a24a2eadcfd05fa83ae29c0e8aae03;hp=74875fbc88f7de672acfb9be7a1cf6ea9e3f7eba;hpb=fd96a212810bff1574b047c9079e3e050feb8a28;p=ccan

diff --git a/ccan/aga/test/api-dijkstra.c b/ccan/aga/test/api-dijkstra.c
index 74875fbc..01bb5aa4 100644
--- a/ccan/aga/test/api-dijkstra.c
+++ b/ccan/aga/test/api-dijkstra.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_dijkstra_start(&ng.sg.g, &ng.sg.nodes[1]) == 0);
+	aga_dijkstra_complete(&ng.sg.g);
+	ok1(aga_error(&ng.sg.g) == AGA_ERR_NEGATIVE_COST);
+	aga_finish(&ng.sg.g);
+}
+
 int main(void)
 {
 	plan_tests(7 + 20
 		   + FULL_LEN * (1 + FULL_LEN*4)
 		   + CHAIN_LEN * (1 + CHAIN_LEN*2)
-		   + 12 + 32 + 7 + 2);
+		   + 12 + 32 + 7 + 2 + 2);
 
 	test_trivial();
 	test_parallel();
@@ -261,6 +273,7 @@ int main(void)
 	test_traversal1();
 	test_shortcut1();
 	test_shortcut2();
+	test_negacycle();
 	
 	return exit_status();
 }