VM globals

vm/vm_test.go

@@ -165,3 +165,13 @@ func TestConditionals(t *testing.T) {
 
 	runVmTests(t, tests)
 }
+
+func TestGlobalLetStatements(t *testing.T) {
+	tests := []vmTestCase{
+		{"let one = 1; one", 1},
+		{"let one = 1; let two = 2; one + two", 3},
+		{"let one = 1; let two = one + one; one + two", 3},
+	}
+
+	runVmTests(t, tests)
+}