251 lines
7.0 KiB
Go
251 lines
7.0 KiB
Go
package resource
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import (
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"context"
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"sync"
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"testing"
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"github.com/stretchr/testify/require"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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"google.golang.org/protobuf/types/known/anypb"
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"github.com/hashicorp/consul/internal/resource/demo"
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"github.com/hashicorp/consul/internal/storage"
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"github.com/hashicorp/consul/proto-public/pbresource"
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pbdemov2 "github.com/hashicorp/consul/proto/private/pbdemo/v2"
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)
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func TestWrite_InputValidation(t *testing.T) {
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server := testServer(t)
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client := testClient(t, server)
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demo.Register(server.Registry)
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testCases := map[string]func(*pbresource.WriteRequest){
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"no resource": func(req *pbresource.WriteRequest) { req.Resource = nil },
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"no id": func(req *pbresource.WriteRequest) { req.Resource.Id = nil },
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"no type": func(req *pbresource.WriteRequest) { req.Resource.Id.Type = nil },
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"no tenancy": func(req *pbresource.WriteRequest) { req.Resource.Id.Tenancy = nil },
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"no name": func(req *pbresource.WriteRequest) { req.Resource.Id.Name = "" },
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"no data": func(req *pbresource.WriteRequest) { req.Resource.Data = nil },
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"wrong data type": func(req *pbresource.WriteRequest) {
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var err error
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req.Resource.Data, err = anypb.New(&pbdemov2.Album{})
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require.NoError(t, err)
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},
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}
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for desc, modFn := range testCases {
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t.Run(desc, func(t *testing.T) {
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res, err := demo.GenerateV2Artist()
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require.NoError(t, err)
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req := &pbresource.WriteRequest{Resource: res}
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modFn(req)
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_, err = client.Write(testContext(t), req)
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require.Error(t, err)
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require.Equal(t, codes.InvalidArgument.String(), status.Code(err).String())
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})
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}
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}
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func TestWrite_TypeNotFound(t *testing.T) {
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server := testServer(t)
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client := testClient(t, server)
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res, err := demo.GenerateV2Artist()
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require.NoError(t, err)
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_, err = client.Write(testContext(t), &pbresource.WriteRequest{Resource: res})
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require.Error(t, err)
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require.Equal(t, codes.InvalidArgument.String(), status.Code(err).String())
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require.Contains(t, err.Error(), "resource type demo/v2/artist not registered")
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}
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func TestWrite_ResourceCreation(t *testing.T) {
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server := testServer(t)
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client := testClient(t, server)
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demo.Register(server.Registry)
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res, err := demo.GenerateV2Artist()
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require.NoError(t, err)
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rsp, err := client.Write(testContext(t), &pbresource.WriteRequest{Resource: res})
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require.NoError(t, err)
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require.NotEmpty(t, rsp.Resource.Version, "resource should have version")
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require.NotEmpty(t, rsp.Resource.Id.Uid, "resource id should have uid")
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require.NotEmpty(t, rsp.Resource.Generation, "resource should have generation")
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}
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func TestWrite_CASUpdate_Success(t *testing.T) {
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server := testServer(t)
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client := testClient(t, server)
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demo.Register(server.Registry)
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res, err := demo.GenerateV2Artist()
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require.NoError(t, err)
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rsp1, err := client.Write(testContext(t), &pbresource.WriteRequest{Resource: res})
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require.NoError(t, err)
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rsp2, err := client.Write(testContext(t), &pbresource.WriteRequest{
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Resource: modifyArtist(t, rsp1.Resource),
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})
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require.NoError(t, err)
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require.Equal(t, rsp1.Resource.Id.Uid, rsp2.Resource.Id.Uid)
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require.NotEqual(t, rsp1.Resource.Version, rsp2.Resource.Version)
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require.NotEqual(t, rsp1.Resource.Generation, rsp2.Resource.Generation)
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}
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func TestWrite_CASUpdate_Failure(t *testing.T) {
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server := testServer(t)
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client := testClient(t, server)
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demo.Register(server.Registry)
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res, err := demo.GenerateV2Artist()
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require.NoError(t, err)
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rsp1, err := client.Write(testContext(t), &pbresource.WriteRequest{Resource: res})
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require.NoError(t, err)
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res = modifyArtist(t, rsp1.Resource)
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res.Version = "wrong-version"
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_, err = client.Write(testContext(t), &pbresource.WriteRequest{Resource: res})
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require.Error(t, err)
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require.Equal(t, codes.Aborted.String(), status.Code(err).String())
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require.Contains(t, err.Error(), "CAS operation failed")
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}
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func TestWrite_Update_WrongUid(t *testing.T) {
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server := testServer(t)
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client := testClient(t, server)
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demo.Register(server.Registry)
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res, err := demo.GenerateV2Artist()
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require.NoError(t, err)
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rsp1, err := client.Write(testContext(t), &pbresource.WriteRequest{Resource: res})
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require.NoError(t, err)
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res = modifyArtist(t, rsp1.Resource)
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res.Id.Uid = "wrong-uid"
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_, err = client.Write(testContext(t), &pbresource.WriteRequest{Resource: res})
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require.Error(t, err)
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require.Equal(t, codes.FailedPrecondition.String(), status.Code(err).String())
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require.Contains(t, err.Error(), "uid doesn't match")
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}
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func TestWrite_Update_NoUid(t *testing.T) {
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server := testServer(t)
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client := testClient(t, server)
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demo.Register(server.Registry)
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res, err := demo.GenerateV2Artist()
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require.NoError(t, err)
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rsp1, err := client.Write(testContext(t), &pbresource.WriteRequest{Resource: res})
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require.NoError(t, err)
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res = modifyArtist(t, rsp1.Resource)
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res.Id.Uid = ""
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_, err = client.Write(testContext(t), &pbresource.WriteRequest{Resource: res})
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require.NoError(t, err)
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}
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func TestWrite_NonCASUpdate_Success(t *testing.T) {
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server := testServer(t)
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client := testClient(t, server)
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demo.Register(server.Registry)
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res, err := demo.GenerateV2Artist()
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require.NoError(t, err)
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rsp1, err := client.Write(testContext(t), &pbresource.WriteRequest{Resource: res})
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require.NoError(t, err)
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res = modifyArtist(t, rsp1.Resource)
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res.Version = ""
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rsp2, err := client.Write(testContext(t), &pbresource.WriteRequest{Resource: res})
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require.NoError(t, err)
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require.NotEmpty(t, rsp2.Resource.Version)
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require.NotEqual(t, rsp1.Resource.Version, rsp2.Resource.Version)
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}
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func TestWrite_NonCASUpdate_Retry(t *testing.T) {
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server := testServer(t)
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client := testClient(t, server)
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demo.Register(server.Registry)
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res, err := demo.GenerateV2Artist()
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require.NoError(t, err)
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rsp1, err := client.Write(testContext(t), &pbresource.WriteRequest{Resource: res})
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require.NoError(t, err)
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// Simulate conflicting writes by blocking the RPC after it has read the
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// current version of the resource, but before it tries to make a write.
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backend := &blockOnceBackend{
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Backend: server.Backend,
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readCh: make(chan struct{}),
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blockCh: make(chan struct{}),
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}
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server.Backend = backend
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errCh := make(chan error)
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go func() {
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res := modifyArtist(t, rsp1.Resource)
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res.Version = ""
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_, err := client.Write(testContext(t), &pbresource.WriteRequest{Resource: res})
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errCh <- err
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}()
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// Wait for the read, to ensure the Write in the goroutine above has read the
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// current version of the resource.
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<-backend.readCh
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// Update the resource.
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res = modifyArtist(t, rsp1.Resource)
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_, err = backend.WriteCAS(testContext(t), res)
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require.NoError(t, err)
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// Unblock the read.
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close(backend.blockCh)
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// Check that the write succeeded anyway because of a retry.
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require.NoError(t, <-errCh)
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}
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type blockOnceBackend struct {
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storage.Backend
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once sync.Once
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readCh chan struct{}
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blockCh chan struct{}
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}
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func (b *blockOnceBackend) Read(ctx context.Context, consistency storage.ReadConsistency, id *pbresource.ID) (*pbresource.Resource, error) {
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res, err := b.Backend.Read(ctx, consistency, id)
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b.once.Do(func() {
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close(b.readCh)
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<-b.blockCh
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})
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return res, err
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}
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