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// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package cpu_test
import (
"os"
"os/exec"
"strings"
"testing"
. "github.com/refraction-networking/utls/cpu"
"github.com/refraction-networking/utls/testenv"
)
func MustHaveDebugOptionsSupport(t *testing.T) {
if !DebugOptions {
t.Skipf("skipping test: cpu feature options not supported by OS")
}
}
func MustSupportFeatureDectection(t *testing.T) {
// TODO: add platforms that do not have CPU feature detection support.
}
func runDebugOptionsTest(t *testing.T, test string, options string) {
MustHaveDebugOptionsSupport(t)
testenv.MustHaveExec(t)
env := "GODEBUG=" + options
cmd := exec.Command(os.Args[0], "-test.run="+test)
cmd.Env = append(cmd.Env, env)
output, err := cmd.CombinedOutput()
lines := strings.Fields(string(output))
lastline := lines[len(lines)-1]
got := strings.TrimSpace(lastline)
want := "PASS"
if err != nil || got != want {
t.Fatalf("%s with %s: want %s, got %v", test, env, want, got)
}
}
func TestDisableAllCapabilities(t *testing.T) {
MustSupportFeatureDectection(t)
runDebugOptionsTest(t, "TestAllCapabilitiesDisabled", "cpu.all=off")
}
func TestAllCapabilitiesDisabled(t *testing.T) {
MustHaveDebugOptionsSupport(t)
// if godebug.Get("cpu.all") != "off" {
t.Skipf("skipping test: GODEBUG=cpu.all=off not set")
// }
// for _, o := range Options {
// want := false
// if got := *o.Feature; got != want {
// t.Errorf("%v: expected %v, got %v", o.Name, want, got)
// }
// }
}
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