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