mirror of
https://github.com/cloudflare/cloudflared.git
synced 2026-06-23 04:10:20 +00:00
Miguel da Costa Martins Marcelino
539 lines
17 KiB
Go
539 lines
17 KiB
Go
package prechecks
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import (
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"context"
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"crypto/tls"
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"errors"
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"net"
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"testing"
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"github.com/rs/zerolog"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"go.uber.org/mock/gomock"
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"github.com/cloudflare/cloudflared/edgediscovery/allregions"
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"github.com/cloudflare/cloudflared/mocks"
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)
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// Test constants for repeated string values.
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const (
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testRegion1Global = region1Global
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testRegion2Global = region2Global
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testRegion1US = region1US
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testRegion2US = region2US
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testRegion1Fed = region1Fed
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testRegion2Fed = region2Fed
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testEdgePort = 7844
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)
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// testTLSConfig is a minimal *tls.Config for tests. Mock dialers never
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// perform a real TLS handshake, so an empty config is sufficient.
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var testTLSConfig = &tls.Config{} //nolint:gosec
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// Helper to create test edge addresses.
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func createTestEdgeAddr(ip string, port int, version allregions.EdgeIPVersion) *allregions.EdgeAddr {
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parsedIP := net.ParseIP(ip)
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return &allregions.EdgeAddr{
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TCP: &net.TCPAddr{IP: parsedIP, Port: port},
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UDP: &net.UDPAddr{IP: parsedIP, Port: port},
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IPVersion: version,
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}
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}
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// probeDNS tests.
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func TestProbeDNS_Success(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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v4Addr := createTestEdgeAddr("192.0.2.1", testEdgePort, allregions.V4)
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v6Addr := createTestEdgeAddr("2001:db8::1", testEdgePort, allregions.V6)
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resolver := mocks.NewMockDNSResolver(ctrl)
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resolver.EXPECT().Resolve("").Return([][]*allregions.EdgeAddr{{v4Addr, v6Addr}}, nil)
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targets := probeDNS(resolver, "")
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require.Len(t, targets, 1)
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assert.NotEmpty(t, targets[0].Addrs)
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assert.Equal(t, ProbeTypeDNS, targets[0].DNSResult.Type)
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assert.Equal(t, testRegion1Global, targets[0].DNSResult.Target)
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assert.Equal(t, Pass, targets[0].DNSResult.ProbeStatus)
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assert.Equal(t, dnsResolvedSuccessfully, targets[0].DNSResult.Details)
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}
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func TestProbeDNS_MultipleRegions(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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v4Addr1 := createTestEdgeAddr("192.0.2.1", testEdgePort, allregions.V4)
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v4Addr2 := createTestEdgeAddr("192.0.2.2", testEdgePort, allregions.V4)
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resolver := mocks.NewMockDNSResolver(ctrl)
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resolver.EXPECT().Resolve("").Return([][]*allregions.EdgeAddr{{v4Addr1}, {v4Addr2}}, nil)
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targets := probeDNS(resolver, "")
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require.Len(t, targets, 2)
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assert.Equal(t, testRegion1Global, targets[0].DNSResult.Target)
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assert.Equal(t, Pass, targets[0].DNSResult.ProbeStatus)
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assert.NotEmpty(t, targets[0].Addrs)
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assert.Equal(t, testRegion2Global, targets[1].DNSResult.Target)
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assert.Equal(t, Pass, targets[1].DNSResult.ProbeStatus)
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assert.NotEmpty(t, targets[1].Addrs)
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}
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func TestProbeDNS_ResolverError(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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resolver := mocks.NewMockDNSResolver(ctrl)
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resolver.EXPECT().Resolve("").Return(nil, errors.New("DNS lookup failed"))
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targets := probeDNS(resolver, "")
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require.Len(t, targets, 2)
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assert.Empty(t, targets[0].Addrs)
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assert.Equal(t, Fail, targets[0].DNSResult.ProbeStatus)
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assert.Equal(t, "DNS lookup failed", targets[0].DNSResult.Details)
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assert.Contains(t, targets[0].DNSResult.Action, testRegion1Global)
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assert.Empty(t, targets[1].Addrs)
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assert.Equal(t, Fail, targets[1].DNSResult.ProbeStatus)
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assert.Contains(t, targets[1].DNSResult.Action, testRegion2Global)
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}
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func TestProbeDNS_EmptyResults(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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resolver := mocks.NewMockDNSResolver(ctrl)
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resolver.EXPECT().Resolve("").Return([][]*allregions.EdgeAddr{}, nil)
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targets := probeDNS(resolver, "")
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require.Len(t, targets, 2)
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assert.Empty(t, targets[0].Addrs)
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assert.Equal(t, Fail, targets[0].DNSResult.ProbeStatus)
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assert.Equal(t, dnsNoAddressesReturned, targets[0].DNSResult.Details)
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}
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func TestProbeDNS_EmptyGroup(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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resolver := mocks.NewMockDNSResolver(ctrl)
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resolver.EXPECT().Resolve("").Return([][]*allregions.EdgeAddr{{}}, nil)
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targets := probeDNS(resolver, "")
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require.Len(t, targets, 1)
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assert.Empty(t, targets[0].Addrs)
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assert.Equal(t, Fail, targets[0].DNSResult.ProbeStatus)
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assert.Equal(t, dnsNoAddressesReturned, targets[0].DNSResult.Details)
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}
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func TestProbeDNS_RegionFlag(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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v4Addr := createTestEdgeAddr("192.0.2.1", testEdgePort, allregions.V4)
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resolver := mocks.NewMockDNSResolver(ctrl)
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resolver.EXPECT().Resolve("us").Return([][]*allregions.EdgeAddr{{v4Addr}}, nil)
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targets := probeDNS(resolver, "us")
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require.Len(t, targets, 1)
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assert.Equal(t, testRegion1US, targets[0].DNSResult.Target)
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}
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// probeQUIC tests.
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func TestProbeQUIC_Success(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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successfulQUICConn := mocks.NewMockQUICConnection(ctrl)
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successfulQUICConn.EXPECT().CloseWithError(gomock.Any(), gomock.Any()).Return(nil)
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dialer := mocks.NewMockQUICDialer(ctrl)
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dialer.EXPECT().DialQuic(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(successfulQUICConn, nil)
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addr := createTestEdgeAddr("192.0.2.1", testEdgePort, allregions.V4)
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logger := zerolog.New(nil)
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result := probeQUIC(context.Background(), testTLSConfig, dialer, addr, &logger)
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assert.Equal(t, ProbeTypeQUIC, result.Type)
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assert.Equal(t, Pass, result.ProbeStatus)
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assert.Equal(t, detailsQUICHandshakeSuccessful, result.Details)
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}
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func TestProbeQUIC_DialError(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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dialer := mocks.NewMockQUICDialer(ctrl)
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dialer.EXPECT().DialQuic(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(nil, errors.New("connection refused"))
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addr := createTestEdgeAddr("192.0.2.1", testEdgePort, allregions.V4)
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logger := zerolog.New(nil)
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result := probeQUIC(context.Background(), testTLSConfig, dialer, addr, &logger)
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assert.Equal(t, ProbeTypeQUIC, result.Type)
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assert.Equal(t, Fail, result.ProbeStatus)
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assert.Equal(t, detailsQUICHandshakeFailed, result.Details)
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assert.Equal(t, actionQUICBlocked, result.Action)
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}
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func TestProbeQUIC_CloseErrorDoesNotAffectResult(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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// Return a mock whose CloseWithError returns an error — probeQUIC must still
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// report Pass because the handshake itself succeeded.
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fakeQUICConn := mocks.NewMockQUICConnection(ctrl)
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fakeQUICConn.EXPECT().CloseWithError(gomock.Any(), gomock.Any()).Return(errors.New("close failed"))
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dialer := mocks.NewMockQUICDialer(ctrl)
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dialer.EXPECT().DialQuic(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(fakeQUICConn, nil)
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addr := createTestEdgeAddr("192.0.2.1", testEdgePort, allregions.V4)
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logger := zerolog.New(nil)
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result := probeQUIC(context.Background(), testTLSConfig, dialer, addr, &logger)
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assert.Equal(t, ProbeTypeQUIC, result.Type)
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assert.Equal(t, Pass, result.ProbeStatus)
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assert.Equal(t, detailsQUICHandshakeSuccessful, result.Details)
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}
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func TestProbeQUIC_ContextTimeout(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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dialer := mocks.NewMockQUICDialer(ctrl)
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dialer.EXPECT().DialQuic(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(nil, context.DeadlineExceeded)
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addr := createTestEdgeAddr("192.0.2.1", testEdgePort, allregions.V4)
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logger := zerolog.New(nil)
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result := probeQUIC(context.Background(), testTLSConfig, dialer, addr, &logger)
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assert.Equal(t, Fail, result.ProbeStatus)
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assert.Equal(t, detailsQUICHandshakeFailed, result.Details)
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}
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// probeHTTP2 tests.
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func TestProbeHTTP2_Success(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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dialer := mocks.NewMockTCPDialer(ctrl)
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dialer.EXPECT().DialEdge(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(&net.TCPConn{}, nil)
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addr := createTestEdgeAddr("192.0.2.1", testEdgePort, allregions.V4)
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result := probeHTTP2(context.Background(), testTLSConfig, dialer, addr)
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assert.Equal(t, ProbeTypeHTTP2, result.Type)
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assert.Equal(t, Pass, result.ProbeStatus)
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assert.Equal(t, detailsHTTP2HandshakeSuccessful, result.Details)
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}
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func TestProbeHTTP2_DialError(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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dialer := mocks.NewMockTCPDialer(ctrl)
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dialer.EXPECT().DialEdge(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(nil, errors.New("connection refused"))
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addr := createTestEdgeAddr("192.0.2.1", testEdgePort, allregions.V4)
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result := probeHTTP2(context.Background(), testTLSConfig, dialer, addr)
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assert.Equal(t, ProbeTypeHTTP2, result.Type)
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assert.Equal(t, Fail, result.ProbeStatus)
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assert.Equal(t, detailsHTTP2BlockedOrUnreachable, result.Details)
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assert.Equal(t, actionHTTP2Blocked, result.Action)
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}
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// probeManagementAPI tests.
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func TestProbeManagementAPI_Success(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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dialer := mocks.NewMockManagementDialer(ctrl)
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dialer.EXPECT().DialContext(gomock.Any(), "tcp", "api.cloudflare.com:443").Return(&net.TCPConn{}, nil)
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result := probeManagementAPI(context.Background(), dialer)
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assert.Equal(t, ProbeTypeManagementAPI, result.Type)
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assert.Equal(t, "Cloudflare API", result.Component)
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assert.Equal(t, "api.cloudflare.com:443", result.Target)
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assert.Equal(t, Pass, result.ProbeStatus)
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assert.Equal(t, detailsApiReachable, result.Details)
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}
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func TestProbeManagementAPI_DialError(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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dialer := mocks.NewMockManagementDialer(ctrl)
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dialer.EXPECT().DialContext(gomock.Any(), "tcp", "api.cloudflare.com:443").Return(nil, errors.New("connection refused"))
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result := probeManagementAPI(context.Background(), dialer)
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assert.Equal(t, ProbeTypeManagementAPI, result.Type)
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assert.Equal(t, Fail, result.ProbeStatus)
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assert.Equal(t, detailsAPIConnectionFailed, result.Details)
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assert.Equal(t, actionAPIUnreachable, result.Action)
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}
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// skipResult tests.
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func TestSkipResult(t *testing.T) {
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t.Parallel()
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result := skipResult(ProbeTypeQUIC, "UDP Connectivity", "Port 7844 (QUIC)", detailsDNSPrerequisiteFailed)
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assert.Equal(t, ProbeTypeQUIC, result.Type)
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assert.Equal(t, "UDP Connectivity", result.Component)
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assert.Equal(t, "Port 7844 (QUIC)", result.Target)
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assert.Equal(t, Skip, result.ProbeStatus)
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assert.Equal(t, detailsDNSPrerequisiteFailed, result.Details)
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}
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// regionTargets tests.
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func TestRegionTargets(t *testing.T) {
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t.Parallel()
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tests := []struct {
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name string
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region string
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wantRegion1 string
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wantRegion2 string
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description string
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}{
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{
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name: "empty region returns global hostnames",
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region: "",
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wantRegion1: testRegion1Global,
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wantRegion2: testRegion2Global,
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},
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{
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name: "us region returns US hostnames",
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region: "us",
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wantRegion1: testRegion1US,
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wantRegion2: testRegion2US,
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},
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{
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name: "fed region returns fed hostnames",
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region: "fed",
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wantRegion1: testRegion1Fed,
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wantRegion2: testRegion2Fed,
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},
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{
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name: "unknown region defaults to global hostnames",
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region: "eu",
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wantRegion1: testRegion1Global,
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wantRegion2: testRegion2Global,
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description: "Unknown regions should default to global hostnames",
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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t.Parallel()
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gotR1, gotR2 := regionTargets(tt.region)
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assert.Equal(t, tt.wantRegion1, gotR1)
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assert.Equal(t, tt.wantRegion2, gotR2)
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})
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}
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}
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// addrsByFamily tests.
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func TestAddrsByFamily(t *testing.T) {
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t.Parallel()
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v4Addr := createTestEdgeAddr("192.0.2.1", testEdgePort, allregions.V4)
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v6Addr := createTestEdgeAddr("2001:db8::1", testEdgePort, allregions.V6)
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tests := []struct {
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name string
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group []*allregions.EdgeAddr
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ipVersion allregions.ConfigIPVersion
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wantV4 bool
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wantV6 bool
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}{
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{
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name: "auto returns both v4 and v6",
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group: []*allregions.EdgeAddr{v4Addr, v6Addr},
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ipVersion: allregions.Auto,
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wantV4: true,
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wantV6: true,
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},
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{
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name: "ipv4 only returns v4 and nil v6",
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group: []*allregions.EdgeAddr{v4Addr, v6Addr},
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ipVersion: allregions.IPv4Only,
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wantV4: true,
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wantV6: false,
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},
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{
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name: "ipv6 only returns nil v4 and v6",
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group: []*allregions.EdgeAddr{v4Addr, v6Addr},
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ipVersion: allregions.IPv6Only,
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wantV4: false,
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wantV6: true,
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},
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{
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name: "empty group returns nil for both",
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group: []*allregions.EdgeAddr{},
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ipVersion: allregions.Auto,
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wantV4: false,
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wantV6: false,
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},
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{
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name: "only v4 available returns v4 and nil v6",
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group: []*allregions.EdgeAddr{v4Addr},
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ipVersion: allregions.Auto,
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wantV4: true,
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wantV6: false,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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t.Parallel()
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gotV4, gotV6 := addrsByFamily(tt.group, tt.ipVersion)
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if tt.wantV4 {
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assert.NotNil(t, gotV4)
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} else {
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assert.Nil(t, gotV4)
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}
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if tt.wantV6 {
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assert.NotNil(t, gotV6)
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} else {
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assert.Nil(t, gotV6)
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}
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})
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}
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}
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// IPv6 address tests for probeQUIC.
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func TestProbeQUIC_IPv6Address(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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successfulQUICConn := mocks.NewMockQUICConnection(ctrl)
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successfulQUICConn.EXPECT().CloseWithError(gomock.Any(), gomock.Any()).Return(nil)
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dialer := mocks.NewMockQUICDialer(ctrl)
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dialer.EXPECT().DialQuic(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(successfulQUICConn, nil)
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addr := createTestEdgeAddr("2001:db8::1", testEdgePort, allregions.V6)
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logger := zerolog.New(nil)
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result := probeQUIC(context.Background(), testTLSConfig, dialer, addr, &logger)
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assert.Equal(t, Pass, result.ProbeStatus)
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assert.Equal(t, detailsQUICHandshakeSuccessful, result.Details)
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}
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// IPv6 address tests for probeHTTP2.
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func TestProbeHTTP2_IPv6Address(t *testing.T) {
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t.Parallel()
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ctrl := gomock.NewController(t)
|
|
defer ctrl.Finish()
|
|
|
|
dialer := mocks.NewMockTCPDialer(ctrl)
|
|
dialer.EXPECT().DialEdge(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(&net.TCPConn{}, nil)
|
|
|
|
addr := createTestEdgeAddr("2001:db8::1", testEdgePort, allregions.V6)
|
|
|
|
result := probeHTTP2(context.Background(), testTLSConfig, dialer, addr)
|
|
|
|
assert.Equal(t, Pass, result.ProbeStatus)
|
|
}
|
|
|
|
// resolveStaticEdge tests.
|
|
|
|
// TestResolveStaticEdge_SingleAddr verifies that a single resolvable --edge
|
|
// addr produces one group labeled with the original addr string.
|
|
func TestResolveStaticEdge_SingleAddr(t *testing.T) {
|
|
t.Parallel()
|
|
logger := zerolog.Nop()
|
|
targets := resolveStaticEdge([]string{"127.0.0.1:7844"}, &logger)
|
|
require.Len(t, targets, 1)
|
|
assert.Equal(t, "127.0.0.1:7844", targets[0].DNSResult.Target)
|
|
assert.Equal(t, Pass, targets[0].DNSResult.ProbeStatus)
|
|
assert.NotEmpty(t, targets[0].Addrs)
|
|
}
|
|
|
|
// TestResolveStaticEdge_MultipleAddrs verifies that multiple --edge addrs each
|
|
// produce their own ResolvedTarget, preserving per-addr structure and label order.
|
|
func TestResolveStaticEdge_MultipleAddrs(t *testing.T) {
|
|
t.Parallel()
|
|
logger := zerolog.Nop()
|
|
targets := resolveStaticEdge([]string{"127.0.0.1:7844", "127.0.0.2:7844"}, &logger)
|
|
require.Len(t, targets, 2)
|
|
assert.Equal(t, "127.0.0.1:7844", targets[0].DNSResult.Target)
|
|
assert.Equal(t, "127.0.0.2:7844", targets[1].DNSResult.Target)
|
|
}
|
|
|
|
// TestResolveStaticEdge_InvalidAddr verifies that an unresolvable addr is
|
|
// silently skipped and does not appear in the output.
|
|
func TestResolveStaticEdge_InvalidAddr(t *testing.T) {
|
|
t.Parallel()
|
|
logger := zerolog.Nop()
|
|
// "not-a-valid-addr" has no port — ResolveTCPAddr will fail.
|
|
targets := resolveStaticEdge([]string{"not-a-valid-addr"}, &logger)
|
|
require.Len(t, targets, 1)
|
|
assert.Equal(t, "not-a-valid-addr", targets[0].DNSResult.Target)
|
|
assert.Equal(t, Fail, targets[0].DNSResult.ProbeStatus)
|
|
assert.Equal(t, dnsNoAddressesReturned, targets[0].DNSResult.Details)
|
|
assert.Empty(t, targets[0].Addrs)
|
|
}
|
|
|
|
// TestResolveStaticEdge_PartiallyValid verifies that a mix of valid and invalid
|
|
// addrs produces one ResolvedTarget per addr — valid ones with Addrs and a Skip
|
|
// DNSResult, invalid ones with nil Addrs and a Fail DNSResult.
|
|
func TestResolveStaticEdge_PartiallyValid(t *testing.T) {
|
|
t.Parallel()
|
|
logger := zerolog.Nop()
|
|
targets := resolveStaticEdge([]string{"127.0.0.1:7844", "not-a-valid-addr", "127.0.0.2:7844"}, &logger)
|
|
require.Len(t, targets, 3)
|
|
assert.Equal(t, "127.0.0.1:7844", targets[0].DNSResult.Target)
|
|
assert.Equal(t, Pass, targets[0].DNSResult.ProbeStatus)
|
|
assert.NotEmpty(t, targets[0].Addrs)
|
|
assert.Equal(t, "not-a-valid-addr", targets[1].DNSResult.Target)
|
|
assert.Equal(t, Fail, targets[1].DNSResult.ProbeStatus)
|
|
assert.Empty(t, targets[1].Addrs)
|
|
assert.Equal(t, "127.0.0.2:7844", targets[2].DNSResult.Target)
|
|
assert.Equal(t, Pass, targets[2].DNSResult.ProbeStatus)
|
|
assert.NotEmpty(t, targets[2].Addrs)
|
|
}
|