60 lines
2.3 KiB
Go
60 lines
2.3 KiB
Go
// Copyright 2020 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package clientv3
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import (
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"context"
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"reflect"
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"testing"
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"github.com/stretchr/testify/require"
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"google.golang.org/grpc/metadata"
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"go.etcd.io/etcd/api/v3/v3rpc/rpctypes"
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"go.etcd.io/etcd/api/v3/version"
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)
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func TestMetadataWithRequireLeader(t *testing.T) {
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ctx := context.TODO()
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_, ok := metadata.FromOutgoingContext(ctx)
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require.Falsef(t, ok, "expected no outgoing metadata ctx key")
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// add a conflicting key with some other value
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md := metadata.Pairs(rpctypes.MetadataRequireLeaderKey, "invalid")
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// add a key, and expect not be overwritten
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md.Set("hello", "1", "2")
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ctx = metadata.NewOutgoingContext(ctx, md)
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// expect overwrites but still keep other keys
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ctx = WithRequireLeader(ctx)
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md, ok = metadata.FromOutgoingContext(ctx)
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require.Truef(t, ok, "expected outgoing metadata ctx key")
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ss := md.Get(rpctypes.MetadataRequireLeaderKey)
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require.Truef(t, reflect.DeepEqual(ss, []string{rpctypes.MetadataHasLeader}), "unexpected metadata for %q %v", rpctypes.MetadataRequireLeaderKey, ss)
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ss = md.Get("hello")
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require.Truef(t, reflect.DeepEqual(ss, []string{"1", "2"}), "unexpected metadata for 'hello' %v", ss)
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}
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func TestMetadataWithClientAPIVersion(t *testing.T) {
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ctx := withVersion(WithRequireLeader(context.TODO()))
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md, ok := metadata.FromOutgoingContext(ctx)
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require.Truef(t, ok, "expected outgoing metadata ctx key")
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ss := md.Get(rpctypes.MetadataRequireLeaderKey)
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require.Truef(t, reflect.DeepEqual(ss, []string{rpctypes.MetadataHasLeader}), "unexpected metadata for %q %v", rpctypes.MetadataRequireLeaderKey, ss)
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ss = md.Get(rpctypes.MetadataClientAPIVersionKey)
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require.Truef(t, reflect.DeepEqual(ss, []string{version.APIVersion}), "unexpected metadata for %q %v", rpctypes.MetadataClientAPIVersionKey, ss)
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}
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