consul/agent/discovery/query_fetcher_v1_test.go

107 lines
3.0 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: BUSL-1.1
package discovery
import (
"errors"
"testing"
"time"
"github.com/stretchr/testify/mock"
"github.com/stretchr/testify/require"
"github.com/hashicorp/consul/acl"
cachetype "github.com/hashicorp/consul/agent/cache-types"
"github.com/hashicorp/consul/agent/config"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/sdk/testutil"
)
// Test_FetchService tests the FetchService method in scenarios where the RPC
// call succeeds and fails.
func Test_FetchVirtualIP(t *testing.T) {
// set these to confirm that RPC call does not use them for this particular RPC
rc := &config.RuntimeConfig{
DNSAllowStale: true,
DNSMaxStale: 100,
DNSUseCache: true,
DNSCacheMaxAge: 100,
}
tests := []struct {
name string
queryPayload *QueryPayload
context Context
expectedResult *Result
expectedErr error
}{
{
name: "FetchVirtualIP returns result",
queryPayload: &QueryPayload{
Name: "db",
Tenancy: QueryTenancy{
Peer: "test-peer",
EnterpriseMeta: defaultEntMeta,
},
},
context: Context{
Token: "test-token",
},
expectedResult: &Result{
Address: "192.168.10.10",
Type: ResultTypeVirtual,
},
expectedErr: nil,
},
{
name: "FetchVirtualIP returns error",
queryPayload: &QueryPayload{
Name: "db",
Tenancy: QueryTenancy{
Peer: "test-peer",
EnterpriseMeta: defaultEntMeta,
},
},
context: Context{
Token: "test-token",
},
expectedResult: nil,
expectedErr: errors.New("test-error"),
},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
logger := testutil.Logger(t)
mockRPC := cachetype.NewMockRPC(t)
mockRPC.On("RPC", mock.Anything, "Catalog.VirtualIPForService", mock.Anything, mock.Anything).
Return(tc.expectedErr).
Run(func(args mock.Arguments) {
req := args.Get(2).(*structs.ServiceSpecificRequest)
// validate RPC options are not set from config for the VirtuaLIPForService RPC
require.False(t, req.AllowStale)
require.Equal(t, time.Duration(0), req.MaxStaleDuration)
require.False(t, req.UseCache)
require.Equal(t, time.Duration(0), req.MaxAge)
// validate RPC options are set correctly from the queryPayload and context
require.Equal(t, tc.queryPayload.Tenancy.Peer, req.PeerName)
require.Equal(t, tc.queryPayload.Tenancy.EnterpriseMeta, req.EnterpriseMeta)
require.Equal(t, tc.context.Token, req.QueryOptions.Token)
if tc.expectedErr == nil {
// set the out parameter to ensure that it is used to formulate the result.Address
reply := args.Get(3).(*string)
*reply = tc.expectedResult.Address
}
})
df := NewV1DataFetcher(rc, acl.DefaultEnterpriseMeta(), mockRPC.RPC, logger)
result, err := df.FetchVirtualIP(tc.context, tc.queryPayload)
require.Equal(t, tc.expectedErr, err)
require.Equal(t, tc.expectedResult, result)
})
}
}