consul/agent/grpc-external/services/resource/read_test.go

124 lines
3.9 KiB
Go

package resource
import (
"context"
"testing"
"github.com/stretchr/testify/mock"
"github.com/stretchr/testify/require"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/status"
"github.com/hashicorp/consul/internal/resource"
"github.com/hashicorp/consul/internal/storage"
"github.com/hashicorp/consul/proto-public/pbresource"
"github.com/hashicorp/consul/proto/private/prototest"
)
func TestRead_TypeNotFound(t *testing.T) {
server := NewServer(Config{registry: resource.NewRegistry()})
client := testClient(t, server)
_, err := client.Read(context.Background(), &pbresource.ReadRequest{Id: id1})
require.Error(t, err)
require.Equal(t, codes.InvalidArgument.String(), status.Code(err).String())
require.Contains(t, err.Error(), "resource type mesh/v1/service not registered")
}
func TestRead_ResourceNotFound(t *testing.T) {
for desc, tc := range readTestCases() {
t.Run(desc, func(t *testing.T) {
server := testServer(t)
server.registry.Register(resource.Registration{Type: typev1})
client := testClient(t, server)
_, err := client.Read(tc.ctx, &pbresource.ReadRequest{Id: id1})
require.Error(t, err)
require.Equal(t, codes.NotFound.String(), status.Code(err).String())
require.Contains(t, err.Error(), "resource not found")
})
}
}
func TestRead_GroupVersionMismatch(t *testing.T) {
for desc, tc := range readTestCases() {
t.Run(desc, func(t *testing.T) {
server := testServer(t)
server.registry.Register(resource.Registration{Type: typev1})
server.registry.Register(resource.Registration{Type: typev2})
client := testClient(t, server)
resource1 := &pbresource.Resource{Id: id1, Version: ""}
_, err := server.backend.WriteCAS(tc.ctx, resource1)
require.NoError(t, err)
_, err = client.Read(tc.ctx, &pbresource.ReadRequest{Id: id2})
require.Error(t, err)
require.Equal(t, codes.InvalidArgument.String(), status.Code(err).String())
require.Contains(t, err.Error(), "resource was requested with GroupVersion")
})
}
}
func TestRead_Success(t *testing.T) {
for desc, tc := range readTestCases() {
t.Run(desc, func(t *testing.T) {
server := testServer(t)
server.registry.Register(resource.Registration{Type: typev1})
client := testClient(t, server)
resource1 := &pbresource.Resource{Id: id1, Version: ""}
resource1, err := server.backend.WriteCAS(tc.ctx, resource1)
require.NoError(t, err)
rsp, err := client.Read(tc.ctx, &pbresource.ReadRequest{Id: id1})
require.NoError(t, err)
prototest.AssertDeepEqual(t, resource1, rsp.Resource)
})
}
}
func TestRead_VerifyReadConsistencyArg(t *testing.T) {
// Uses a mockBackend instead of the inmem Backend to verify the ReadConsistency argument is set correctly.
for desc, tc := range readTestCases() {
t.Run(desc, func(t *testing.T) {
mockBackend := NewMockBackend(t)
server := NewServer(Config{
registry: resource.NewRegistry(),
backend: mockBackend,
})
server.registry.Register(resource.Registration{Type: typev1})
resource1 := &pbresource.Resource{Id: id1, Version: "1"}
mockBackend.On("Read", mock.Anything, mock.Anything, mock.Anything).Return(resource1, nil)
client := testClient(t, server)
rsp, err := client.Read(tc.ctx, &pbresource.ReadRequest{Id: id1})
require.NoError(t, err)
prototest.AssertDeepEqual(t, resource1, rsp.Resource)
mockBackend.AssertCalled(t, "Read", mock.Anything, tc.consistency, mock.Anything)
})
}
}
type readTestCase struct {
consistency storage.ReadConsistency
ctx context.Context
}
func readTestCases() map[string]readTestCase {
return map[string]readTestCase{
"eventually consistent read": {
consistency: storage.EventualConsistency,
ctx: context.Background(),
},
"strongly consistent read": {
consistency: storage.StrongConsistency,
ctx: metadata.NewOutgoingContext(
context.Background(),
metadata.New(map[string]string{"x-consul-consistency-mode": "consistent"}),
),
},
}
}