go-brainfuck-yourself

commit 2cc5adf4f02e109c888639692bbdd82294e6a399
parent aa565944a634fe5dbfc933226dc8174a94b5766c
Author: david cochran <about.trout@gmail.com>
Date:   Sun, 12 Jul 2026 14:24:59 -0700

add benchmarks for upcoming optimizations

```
$ go test -bench=.
goos: darwin
goarch: arm64
pkg: github.com/abtrout/gbfy
cpu: Apple M3
BenchmarkLong-8                        1        30521266042 ns/op
BenchmarkMandelbrot-8                  1        23543847083 ns/op
BenchmarkFactor-8                      1        1914946834 ns/op
PASS
ok      github.com/abtrout/gbfy 56.339s
```

Diffstat:
M
bf_test.go
 | 
17
+++++++++++++++++

1 file changed, 17 insertions(+), 0 deletions(-)
diff --git a/bf_test.go b/bf_test.go
@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"fmt"
 	"io"
+	"os"
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
@@ -157,3 +158,19 @@ func Run(cmds []byte, in io.Reader) ([]byte, error) {
 	}
 	return out.Bytes(), nil
 }
+
+// Find your own source files!
+func BenchmarkLong(b *testing.B)		{ runBenchmark(b, "long.bf", nil) }
+func BenchmarkMandelbrot(b *testing.B)	{ runBenchmark(b, "mandelbrot.bf", nil) }
+func BenchmarkFactor(b *testing.B)		{ runBenchmark(b, "factor.bf", bytes.NewReader([]byte("418151632\n"))) }
+
+func runBenchmark(b *testing.B, path string, in io.Reader)  {
+	b.Helper()
+	src, err := os.ReadFile(path)
+	if err != nil {
+		b.Fatalf("Failed to read benchmark file %q: %v", path, err)
+	}
+	if _, err := Run(src, in); err != nil {
+		b.Fatalf("Failed to run benchmark program %q: %v", path, err)
+	}
+}