1 files changed, 18 insertions, 0 deletions
diff --git a/ds/integer_test.go b/ds/integer_test.go
index 9be55eb..fe9cb90 100644
--- a/ds/integer_test.go
+++ b/ds/integer_test.go
@@ -21,4 +21,22 @@ func TestCompare(t *testing.T) {
 	if res != 0 {
 		t.Errorf("%v must be equal to %v, but got %v", i, j, res)
 	}
+
+	i = Integer{23}
+	j = Integer{23}
+	if !i.HigherEqual(j) {
+		t.Errorf("Unpexpected %v.HigherEqual(%v) == false",
+		    i,j)
+	}
+
+	i = Integer{23}
+	j = Integer{42}
+	if i.HigherEqual(j) {
+		t.Errorf("Unpexpected %v.HigherEqual(%v) == true",
+		    i,j)
+	}
+	if !j.HigherEqual(i) {
+		t.Errorf("Unpexpected %v.HigherEqual(%v) == false",
+		    j,i)
+	}
 }