Add gmachine

gmachine/calc_test.go

@@ -0,0 +1,15 @@
+package gmachine
+
+import "testing"
+
+func TestCalc(t *testing.T) {
+	t.Parallel()
+
+	var wants uint64 = 1
+
+	got := Calc()
+
+	if wants != got {
+		t.Errorf("want %d, got %d", wants, got)
+	}
+}