1 files changed, 24 insertions, 0 deletions
diff --git a/core/vm/gas_table_test.go b/core/vm/gas_table_test.go
new file mode 100644
index 000000000..cceb89285
--- /dev/null
+++ b/core/vm/gas_table_test.go
@@ -0,0 +1,24 @@
+package vm
+
+import (
+	"math"
+	"testing"
+)
+
+func TestMemoryGasCost(t *testing.T) {
+	size := uint64(math.MaxUint64 - 64)
+	_, err := memoryGasCost(&Memory{}, size)
+	if err != nil {
+		t.Error("didn't expect error:", err)
+	}
+
+	_, err = memoryGasCost(&Memory{}, size+32)
+	if err != nil {
+		t.Error("didn't expect error:", err)
+	}
+
+	_, err = memoryGasCost(&Memory{}, size+33)
+	if err == nil {
+		t.Error("expected error")
+	}
+}