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Add Test.2-2 DNS resolution by dscacheutil for TestFunctional/parallel/TunnelCmd

pull/7956/head
Kenta Iso 2020-05-02 11:35:58 +09:00
parent b049bcd403
commit 035decf6ab
1 changed files with 19 additions and 9 deletions
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28
test/integration/fn_tunnel_cmd.go
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@ -156,20 +156,30 @@ func validateTunnelCmd(ctx context.Context, t *testing.T, profile string) {
}
dnsIP := "@" + ip.String()
// Test.2 DNS resolution (experimental): https://minikube.sigs.k8s.io/docs/handbook/accessing/#dns-resolution-experimental
// Test.2-1 DNS resolution by dig (experimental): https://minikube.sigs.k8s.io/docs/handbook/accessing/#dns-resolution-experimental
// use absolute domain name to avoid extra DNS query lookup
domain := "nginx-svc.default.svc.cluster.local."
rr, err = Run(t, exec.CommandContext(ctx, "dig", "+time=5", "+tries=3", dnsIP, domain, "A"))
if err != nil {
t.Errorf("failed to resolve DNS name: %v", err)
}
if rr.Stderr.String() != "" {
t.Errorf("failed to resolve DNS name: %v", rr.Stderr.String())
}
want = "ANSWER: 1"
if strings.Contains(rr.Stdout.String(), want) {
t.Logf("DNS resolution for %s is working!", domain)
t.Logf("DNS resolution by dig for %s is working!", domain)
} else {
t.Errorf("expected body to contain %q, but got *%q*", want, rr.Stdout.String())
}
// Test.2-2 DNS resolution by dscacheutil (experimental): https://minikube.sigs.k8s.io/docs/handbook/accessing/#dns-resolution-experimental
rr, err = Run(t, exec.CommandContext(ctx, "dscacheutil", "-q", "host", "-a", "name", domain))
if err != nil {
t.Errorf("failed to resolve DNS name: %v", err)
}
want = hostname
if strings.Contains(rr.Stdout.String(), want) {
t.Logf("DNS resolution by dscacheutil for %s is working!", domain)
} else {
t.Errorf("expected body to contain %q, but got *%q*", want, rr.Stdout.String())
}
@ -178,12 +188,12 @@ func validateTunnelCmd(ctx context.Context, t *testing.T, profile string) {
url = "http://" + domain
if err = retry.Expo(fetch, 3*time.Second, Seconds(30), 10); err != nil {
t.Errorf("failed to hit nginx with DNS forwarded %q: %v", url, err)
// debug more DNS setting information: https://github.com/kubernetes/minikube/issues/7809
rr, err = Run(t, exec.CommandContext(ctx, "scutil", "--dns"))
// debug: clear DNS cache: https://github.com/kubernetes/minikube/issues/7809
_, err = Run(t, exec.CommandContext(ctx, "dscacheutil", "-flushcache"))
if err != nil {
t.Errorf("failed to check dns configuration: %v", err)
t.Errorf("failed to clear DNS cache for macOS: %v", err)
}
t.Logf("DNS Setting Detail: %s", rr.Stdout.String())
t.Logf("cleared DNS cache for macOS")
}
want = "Welcome to nginx!"