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Diffstat (limited to 'test/packetimpact/testbench/testbench.go')
| -rw-r--r-- | test/packetimpact/testbench/testbench.go | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/packetimpact/testbench/testbench.go b/test/packetimpact/testbench/testbench.go index 82eda6565..d64f32a5b 100644 --- a/test/packetimpact/testbench/testbench.go +++ b/test/packetimpact/testbench/testbench.go @@ -17,8 +17,10 @@ package testbench import ( "flag" "fmt" + "math/rand" "net" "os/exec" + "testing" "time" "gvisor.dev/gvisor/test/packetimpact/netdevs" @@ -91,3 +93,14 @@ func genPseudoFlags() error { return nil } + +// GenerateRandomPayload generates a random byte slice of the specified length, +// causing a fatal test failure if it is unable to do so. +func GenerateRandomPayload(t *testing.T, n int) []byte { + t.Helper() + buf := make([]byte, n) + if _, err := rand.Read(buf); err != nil { + t.Fatalf("rand.Read(buf) failed: %s", err) + } + return buf +} |