Function createTestFile

pkg/test/integration/diskpacked_test.go:66–101

(tb testing.TB, file string, n int)

}

func createTestFile(tb testing.TB, file string, n int) {
	f, err := os.Create(file)
	if err != nil {
		tb.Fatal(err)
	}
	w := bufio.NewWriter(f)
	tot := 0
	var b [8]byte
	for tot < n {
		c := rand.Int63()
		b = [8]byte{
			byte(c),
			byte(c >> 8),
			byte(c >> 16),
			byte(c >> 24),
			byte(c >> 32),
			byte(c >> 40),
			byte(c >> 48),
			byte(c >> 56),
		}
		wn, err := w.Write(b[:])
		if err != nil {
			tb.Fatal(err)
		}
		if wn < len(b) {
			tb.Fatalf("short write, got %d expected %d", wn, len(b))
		}
		tot += wn
	}
	if err := w.Flush(); err != nil {
		tb.Fatal(err)
	}
	if err := f.Close(); err != nil {
		tb.Fatal(err)
	}
}