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xdsclient: switch xdsclient watch deadlock test to e2e style (#5697)
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Original file line number | Diff line number | Diff line change |
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/* | ||
* | ||
* Copyright 2022 gRPC authors. | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
* | ||
*/ | ||
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package e2e_test | ||
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import ( | ||
"context" | ||
"testing" | ||
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"google.golang.org/grpc/internal/testutils" | ||
"google.golang.org/grpc/internal/testutils/xds/e2e" | ||
"google.golang.org/grpc/xds/internal/xdsclient" | ||
"google.golang.org/grpc/xds/internal/xdsclient/xdsresource" | ||
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v3routepb "github.com/envoyproxy/go-control-plane/envoy/config/route/v3" | ||
) | ||
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// TestWatchCallAnotherWatch tests the scenario where a watch is registered for | ||
// a resource, and more watches are registered from the first watch's callback. | ||
// The test verifies that this scenario does not lead to a deadlock. | ||
func (s) TestWatchCallAnotherWatch(t *testing.T) { | ||
overrideFedEnvVar(t) | ||
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// Start an xDS management server and set the option to allow it to respond | ||
// to requests which only specify a subset of the configured resources. | ||
mgmtServer, nodeID, bootstrapContents, _, cleanup := e2e.SetupManagementServer(t, &e2e.ManagementServerOptions{AllowResourceSubset: true}) | ||
defer cleanup() | ||
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// Create an xDS client with the above bootstrap contents. | ||
client, err := xdsclient.NewWithBootstrapContentsForTesting(bootstrapContents) | ||
if err != nil { | ||
t.Fatalf("Failed to create xDS client: %v", err) | ||
} | ||
defer client.Close() | ||
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// Configure the management server to respond with route config resources. | ||
resources := e2e.UpdateOptions{ | ||
NodeID: nodeID, | ||
Routes: []*v3routepb.RouteConfiguration{ | ||
e2e.DefaultRouteConfig(rdsName, ldsName, cdsName), | ||
e2e.DefaultRouteConfig(rdsNameNewStyle, ldsNameNewStyle, cdsName), | ||
}, | ||
SkipValidation: true, | ||
} | ||
ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout) | ||
defer cancel() | ||
if err := mgmtServer.Update(ctx, resources); err != nil { | ||
t.Fatalf("Failed to update management server with resources: %v, err: %v", resources, err) | ||
} | ||
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// Start a watch for one route configuration resource. From the watch | ||
// callback of the first resource, register two more watches (one for the | ||
// same resource name, which would be satisfied from the cache, and another | ||
// for a different resource name, which would be satisfied from the server). | ||
updateCh1 := testutils.NewChannel() | ||
updateCh2 := testutils.NewChannel() | ||
updateCh3 := testutils.NewChannel() | ||
var rdsCancel2, rdsCancel3 func() | ||
rdsCancel1 := client.WatchRouteConfig(rdsName, func(u xdsresource.RouteConfigUpdate, err error) { | ||
updateCh1.Send(xdsresource.RouteConfigUpdateErrTuple{Update: u, Err: err}) | ||
// Watch for the same resource name. | ||
rdsCancel2 = client.WatchRouteConfig(rdsName, func(u xdsresource.RouteConfigUpdate, err error) { | ||
updateCh2.Send(xdsresource.RouteConfigUpdateErrTuple{Update: u, Err: err}) | ||
}) | ||
t.Cleanup(rdsCancel2) | ||
// Watch for a different resource name. | ||
rdsCancel3 = client.WatchRouteConfig(rdsNameNewStyle, func(u xdsresource.RouteConfigUpdate, err error) { | ||
updateCh3.Send(xdsresource.RouteConfigUpdateErrTuple{Update: u, Err: err}) | ||
rdsCancel3() | ||
}) | ||
t.Cleanup(rdsCancel3) | ||
}) | ||
// defer rdsCancel1() | ||
t.Cleanup(rdsCancel1) | ||
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// Verify the contents of the received update for the all watchers. | ||
wantUpdate12 := xdsresource.RouteConfigUpdateErrTuple{ | ||
Update: xdsresource.RouteConfigUpdate{ | ||
VirtualHosts: []*xdsresource.VirtualHost{ | ||
{ | ||
Domains: []string{ldsName}, | ||
Routes: []*xdsresource.Route{ | ||
{ | ||
Prefix: newStringP("/"), | ||
ActionType: xdsresource.RouteActionRoute, | ||
WeightedClusters: map[string]xdsresource.WeightedCluster{cdsName: {Weight: 1}}, | ||
}, | ||
}, | ||
}, | ||
}, | ||
}, | ||
} | ||
wantUpdate3 := xdsresource.RouteConfigUpdateErrTuple{ | ||
Update: xdsresource.RouteConfigUpdate{ | ||
VirtualHosts: []*xdsresource.VirtualHost{ | ||
{ | ||
Domains: []string{ldsNameNewStyle}, | ||
Routes: []*xdsresource.Route{ | ||
{ | ||
Prefix: newStringP("/"), | ||
ActionType: xdsresource.RouteActionRoute, | ||
WeightedClusters: map[string]xdsresource.WeightedCluster{cdsName: {Weight: 1}}, | ||
}, | ||
}, | ||
}, | ||
}, | ||
}, | ||
} | ||
if err := verifyRouteConfigUpdate(ctx, updateCh1, wantUpdate12); err != nil { | ||
t.Fatal(err) | ||
} | ||
if err := verifyRouteConfigUpdate(ctx, updateCh2, wantUpdate12); err != nil { | ||
t.Fatal(err) | ||
} | ||
if err := verifyRouteConfigUpdate(ctx, updateCh3, wantUpdate3); err != nil { | ||
t.Fatal(err) | ||
} | ||
} |