Coverage for SI at 0
diff --git a/si_test.go b/si_test.go
index 21b920c..29d64ea 100644
--- a/si_test.go
+++ b/si_test.go
@@ -28,6 +28,7 @@
 		{"e+0", SI(2.2e-0, "F"), "2.2F"},
 		{"e+0", SI(2.2, "F"), "2.2F"},
 		{"e+1", SI(2.2e+1, "F"), "22F"},
+		{"0", SI(0, "F"), "0F"},
 		{"e+1", SI(22, "F"), "22F"},
 		{"e+2", SI(2.2e+2, "F"), "220F"},
 		{"e+2", SI(220, "F"), "220F"},