mirror of https://github.com/grpc/grpc-go.git
encoding: move codec tests out of top-level test package (#6728)
This commit is contained in:
Easwar Swaminathan
GitHub
parent
ddb026e8a8
commit
df8fc99c30
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@ -16,35 +16,63 @@
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*
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*/
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package encoding
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package encoding_test
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import (
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"context"
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"errors"
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"fmt"
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"strings"
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"sync/atomic"
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"testing"
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"time"
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"github.com/google/go-cmp/cmp"
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"google.golang.org/grpc"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/credentials/insecure"
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"google.golang.org/grpc/encoding"
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"google.golang.org/grpc/encoding/proto"
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"google.golang.org/grpc/internal/grpctest"
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"google.golang.org/grpc/internal/grpcutil"
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"google.golang.org/grpc/internal/stubserver"
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"google.golang.org/grpc/metadata"
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"google.golang.org/grpc/status"
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testgrpc "google.golang.org/grpc/interop/grpc_testing"
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testpb "google.golang.org/grpc/interop/grpc_testing"
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)
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const defaultTestTimeout = 10 * time.Second
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type s struct {
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grpctest.Tester
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}
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func Test(t *testing.T) {
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grpctest.RunSubTests(t, s{})
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}
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type mockNamedCompressor struct {
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Compressor
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encoding.Compressor
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}
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func (mockNamedCompressor) Name() string {
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return "mock-compressor"
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}
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func TestDuplicateCompressorRegister(t *testing.T) {
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defer func(m map[string]Compressor) { registeredCompressor = m }(registeredCompressor)
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defer func(c []string) { grpcutil.RegisteredCompressorNames = c }(grpcutil.RegisteredCompressorNames)
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registeredCompressor = map[string]Compressor{}
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grpcutil.RegisteredCompressorNames = []string{}
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RegisterCompressor(&mockNamedCompressor{})
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// Tests the case where a compressor with the same name is registered multiple
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// times. Test verifies the following:
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// - the most recent registration is the one which is active
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// - grpcutil.RegisteredCompressorNames contains a single instance of the
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// previously registered compressor's name
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func (s) TestDuplicateCompressorRegister(t *testing.T) {
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encoding.RegisterCompressor(&mockNamedCompressor{})
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// Register another instance of the same compressor.
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mc := &mockNamedCompressor{}
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RegisterCompressor(mc)
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if got := registeredCompressor["mock-compressor"]; got != mc {
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encoding.RegisterCompressor(mc)
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if got := encoding.GetCompressor("mock-compressor"); got != mc {
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t.Fatalf("Unexpected compressor, got: %+v, want:%+v", got, mc)
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}
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@ -53,3 +81,284 @@ func TestDuplicateCompressorRegister(t *testing.T) {
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t.Fatalf("Unexpected compressor names, got: %+v, want:%+v", grpcutil.RegisteredCompressorNames, wantNames)
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}
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}
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// errProtoCodec wraps the proto codec and delegates to it if it is configured
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// to return a nil error. Else, it returns the configured error.
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type errProtoCodec struct {
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name string
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encodingErr error
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decodingErr error
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}
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func (c *errProtoCodec) Marshal(v any) ([]byte, error) {
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if c.encodingErr != nil {
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return nil, c.encodingErr
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}
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return encoding.GetCodec(proto.Name).Marshal(v)
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}
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func (c *errProtoCodec) Unmarshal(data []byte, v any) error {
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if c.decodingErr != nil {
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return c.decodingErr
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}
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return encoding.GetCodec(proto.Name).Unmarshal(data, v)
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}
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func (c *errProtoCodec) Name() string {
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return c.name
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}
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// Tests the case where encoding fails on the server. Verifies that there is
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// no panic and that the encoding error is propagated to the client.
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func (s) TestEncodeDoesntPanicOnServer(t *testing.T) {
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grpctest.TLogger.ExpectError("grpc: server failed to encode response")
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// Create an codec that errors when encoding messages.
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encodingErr := errors.New("encoding failed")
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ec := &errProtoCodec{name: t.Name(), encodingErr: encodingErr}
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// Start a server with the above codec.
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backend := stubserver.StartTestService(t, nil, grpc.ForceServerCodec(ec))
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defer backend.Stop()
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// Create a channel to the above server.
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cc, err := grpc.Dial(backend.Address, grpc.WithTransportCredentials(insecure.NewCredentials()))
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if err != nil {
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t.Fatalf("Failed to dial test backend at %q: %v", backend.Address, err)
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}
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defer cc.Close()
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// Make an RPC and expect it to fail. Since we do not specify any codec
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// here, the proto codec will get automatically used.
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ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
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defer cancel()
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client := testgrpc.NewTestServiceClient(cc)
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_, err = client.EmptyCall(ctx, &testpb.Empty{})
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if err == nil || !strings.Contains(err.Error(), encodingErr.Error()) {
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t.Fatalf("RPC failed with error: %v, want: %v", err, encodingErr)
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}
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// Configure the codec on the server to not return errors anymore and expect
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// the RPC to succeed.
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ec.encodingErr = nil
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if _, err := client.EmptyCall(ctx, &testpb.Empty{}); err != nil {
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t.Fatalf("RPC failed with error: %v", err)
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}
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}
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// Tests the case where decoding fails on the server. Verifies that there is
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// no panic and that the decoding error is propagated to the client.
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func (s) TestDecodeDoesntPanicOnServer(t *testing.T) {
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// Create an codec that errors when decoding messages.
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decodingErr := errors.New("decoding failed")
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ec := &errProtoCodec{name: t.Name(), decodingErr: decodingErr}
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// Start a server with the above codec.
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backend := stubserver.StartTestService(t, nil, grpc.ForceServerCodec(ec))
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defer backend.Stop()
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// Create a channel to the above server. Since we do not specify any codec
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// here, the proto codec will get automatically used.
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cc, err := grpc.Dial(backend.Address, grpc.WithTransportCredentials(insecure.NewCredentials()))
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if err != nil {
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t.Fatalf("Failed to dial test backend at %q: %v", backend.Address, err)
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}
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defer cc.Close()
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// Make an RPC and expect it to fail. Since we do not specify any codec
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// here, the proto codec will get automatically used.
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ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
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defer cancel()
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client := testgrpc.NewTestServiceClient(cc)
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_, err = client.EmptyCall(ctx, &testpb.Empty{})
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if err == nil || !strings.Contains(err.Error(), decodingErr.Error()) || !strings.Contains(err.Error(), "grpc: error unmarshalling request") {
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t.Fatalf("RPC failed with error: %v, want: %v", err, decodingErr)
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}
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// Configure the codec on the server to not return errors anymore and expect
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// the RPC to succeed.
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ec.decodingErr = nil
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if _, err := client.EmptyCall(ctx, &testpb.Empty{}); err != nil {
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t.Fatalf("RPC failed with error: %v", err)
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}
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}
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// Tests the case where encoding fails on the client . Verifies that there is
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// no panic and that the encoding error is propagated to the RPC caller.
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func (s) TestEncodeDoesntPanicOnClient(t *testing.T) {
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// Start a server and since we do not specify any codec here, the proto
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// codec will get automatically used.
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backend := stubserver.StartTestService(t, nil)
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defer backend.Stop()
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// Create an codec that errors when encoding messages.
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encodingErr := errors.New("encoding failed")
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ec := &errProtoCodec{name: t.Name(), encodingErr: encodingErr}
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// Create a channel to the above server.
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cc, err := grpc.Dial(backend.Address, grpc.WithTransportCredentials(insecure.NewCredentials()))
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if err != nil {
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t.Fatalf("Failed to dial test backend at %q: %v", backend.Address, err)
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}
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defer cc.Close()
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// Make an RPC with the erroring codec and expect it to fail.
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ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
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defer cancel()
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client := testgrpc.NewTestServiceClient(cc)
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_, err = client.EmptyCall(ctx, &testpb.Empty{}, grpc.ForceCodec(ec))
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if err == nil || !strings.Contains(err.Error(), encodingErr.Error()) {
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t.Fatalf("RPC failed with error: %v, want: %v", err, encodingErr)
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}
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// Configure the codec on the client to not return errors anymore and expect
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// the RPC to succeed.
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ec.encodingErr = nil
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if _, err := client.EmptyCall(ctx, &testpb.Empty{}, grpc.ForceCodec(ec)); err != nil {
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t.Fatalf("RPC failed with error: %v", err)
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}
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}
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// Tests the case where decoding fails on the server. Verifies that there is
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// no panic and that the decoding error is propagated to the RPC caller.
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func (s) TestDecodeDoesntPanicOnClient(t *testing.T) {
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// Start a server and since we do not specify any codec here, the proto
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// codec will get automatically used.
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backend := stubserver.StartTestService(t, nil)
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defer backend.Stop()
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// Create an codec that errors when decoding messages.
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decodingErr := errors.New("decoding failed")
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ec := &errProtoCodec{name: t.Name(), decodingErr: decodingErr}
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// Create a channel to the above server.
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cc, err := grpc.Dial(backend.Address, grpc.WithTransportCredentials(insecure.NewCredentials()))
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if err != nil {
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t.Fatalf("Failed to dial test backend at %q: %v", backend.Address, err)
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}
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defer cc.Close()
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// Make an RPC with the erroring codec and expect it to fail.
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ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
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defer cancel()
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client := testgrpc.NewTestServiceClient(cc)
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_, err = client.EmptyCall(ctx, &testpb.Empty{}, grpc.ForceCodec(ec))
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if err == nil || !strings.Contains(err.Error(), decodingErr.Error()) {
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t.Fatalf("RPC failed with error: %v, want: %v", err, decodingErr)
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}
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// Configure the codec on the client to not return errors anymore and expect
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// the RPC to succeed.
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ec.decodingErr = nil
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if _, err := client.EmptyCall(ctx, &testpb.Empty{}, grpc.ForceCodec(ec)); err != nil {
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t.Fatalf("RPC failed with error: %v", err)
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}
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}
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// countingProtoCodec wraps the proto codec and counts the number of times
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// Marshal and Unmarshal are called.
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type countingProtoCodec struct {
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name string
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// The following fields are accessed atomically.
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marshalCount int32
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unmarshalCount int32
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}
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func (p *countingProtoCodec) Marshal(v any) ([]byte, error) {
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atomic.AddInt32(&p.marshalCount, 1)
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return encoding.GetCodec(proto.Name).Marshal(v)
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}
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func (p *countingProtoCodec) Unmarshal(data []byte, v any) error {
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atomic.AddInt32(&p.unmarshalCount, 1)
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return encoding.GetCodec(proto.Name).Unmarshal(data, v)
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}
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func (p *countingProtoCodec) Name() string {
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return p.name
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}
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// Tests the case where ForceServerCodec option is used on the server. Verifies
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// that encoding and decoding happen once per RPC.
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func (s) TestForceServerCodec(t *testing.T) {
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// Create an server with the counting proto codec.
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codec := &countingProtoCodec{name: t.Name()}
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backend := stubserver.StartTestService(t, nil, grpc.ForceServerCodec(codec))
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defer backend.Stop()
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// Create a channel to the above server.
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cc, err := grpc.Dial(backend.Address, grpc.WithTransportCredentials(insecure.NewCredentials()))
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if err != nil {
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t.Fatalf("Failed to dial test backend at %q: %v", backend.Address, err)
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}
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defer cc.Close()
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// Make an RPC and expect it to fail. Since we do not specify any codec
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// here, the proto codec will get automatically used.
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ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
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defer cancel()
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client := testgrpc.NewTestServiceClient(cc)
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if _, err := client.EmptyCall(ctx, &testpb.Empty{}); err != nil {
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t.Fatalf("ss.Client.EmptyCall(_, _) = _, %v; want _, nil", err)
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}
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unmarshalCount := atomic.LoadInt32(&codec.unmarshalCount)
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const wantUnmarshalCount = 1
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if unmarshalCount != wantUnmarshalCount {
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t.Fatalf("Unmarshal Count = %d; want %d", unmarshalCount, wantUnmarshalCount)
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}
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marshalCount := atomic.LoadInt32(&codec.marshalCount)
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const wantMarshalCount = 1
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if marshalCount != wantMarshalCount {
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t.Fatalf("MarshalCount = %d; want %d", marshalCount, wantMarshalCount)
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}
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}
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// renameProtoCodec wraps the proto codec and allows customizing the Name().
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type renameProtoCodec struct {
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encoding.Codec
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name string
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}
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func (r *renameProtoCodec) Name() string { return r.name }
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// TestForceCodecName confirms that the ForceCodec call option sets the subtype
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// in the content-type header according to the Name() of the codec provided.
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// Verifies that the name is converted to lowercase before transmitting.
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func (s) TestForceCodecName(t *testing.T) {
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wantContentTypeCh := make(chan []string, 1)
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defer close(wantContentTypeCh)
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// Create a test service backend that pushes the received content-type on a
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// channel for the test to inspect.
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ss := &stubserver.StubServer{
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EmptyCallF: func(ctx context.Context, in *testpb.Empty) (*testpb.Empty, error) {
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md, ok := metadata.FromIncomingContext(ctx)
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if !ok {
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return nil, status.Errorf(codes.Internal, "no metadata in context")
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}
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if got, want := md["content-type"], <-wantContentTypeCh; !cmp.Equal(got, want) {
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return nil, status.Errorf(codes.Internal, "got content-type=%q; want [%q]", got, want)
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}
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return &testpb.Empty{}, nil
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},
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}
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// Since we don't specify a codec as a server option, it will end up
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// automatically using the proto codec.
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if err := ss.Start(nil); err != nil {
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t.Fatalf("Error starting endpoint server: %v", err)
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}
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defer ss.Stop()
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ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
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defer cancel()
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// Force the use of the custom codec on the client with the ForceCodec call
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// option. Confirm the name is converted to lowercase before transmitting.
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codec := &renameProtoCodec{Codec: encoding.GetCodec(proto.Name), name: t.Name()}
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wantContentTypeCh <- []string{fmt.Sprintf("application/grpc+%s", strings.ToLower(t.Name()))}
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if _, err := ss.Client.EmptyCall(ctx, &testpb.Empty{}, grpc.ForceCodec(codec)); err != nil {
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t.Fatalf("ss.Client.EmptyCall(_, _) = _, %v; want _, nil", err)
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}
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}
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@ -1,188 +0,0 @@
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/*
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*
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* Copyright 2023 gRPC 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.
|
||||
* See the License for the specific language governing permissions and
|
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* limitations under the License.
|
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*
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*/
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package test
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import (
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"context"
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"fmt"
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"reflect"
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"sync/atomic"
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"testing"
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"google.golang.org/grpc"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/encoding"
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"google.golang.org/grpc/internal/stubserver"
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testgrpc "google.golang.org/grpc/interop/grpc_testing"
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testpb "google.golang.org/grpc/interop/grpc_testing"
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"google.golang.org/grpc/metadata"
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"google.golang.org/grpc/status"
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"google.golang.org/protobuf/proto"
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)
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type errCodec struct {
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noError bool
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}
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func (c *errCodec) Marshal(v any) ([]byte, error) {
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if c.noError {
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return []byte{}, nil
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}
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return nil, fmt.Errorf("3987^12 + 4365^12 = 4472^12")
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}
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func (c *errCodec) Unmarshal(data []byte, v any) error {
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return nil
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}
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func (c *errCodec) Name() string {
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return "Fermat's near-miss."
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}
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func (s) TestEncodeDoesntPanic(t *testing.T) {
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for _, e := range listTestEnv() {
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testEncodeDoesntPanic(t, e)
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}
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}
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func testEncodeDoesntPanic(t *testing.T, e env) {
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te := newTest(t, e)
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erc := &errCodec{}
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te.customCodec = erc
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te.startServer(&testServer{security: e.security})
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defer te.tearDown()
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te.customCodec = nil
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tc := testgrpc.NewTestServiceClient(te.clientConn())
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ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
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defer cancel()
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// Failure case, should not panic.
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tc.EmptyCall(ctx, &testpb.Empty{})
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erc.noError = true
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// Passing case.
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if _, err := tc.EmptyCall(ctx, &testpb.Empty{}); err != nil {
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t.Fatalf("EmptyCall(_, _) = _, %v, want _, <nil>", err)
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}
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}
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type countingProtoCodec struct {
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marshalCount int32
|
||||
unmarshalCount int32
|
||||
}
|
||||
|
||||
func (p *countingProtoCodec) Marshal(v any) ([]byte, error) {
|
||||
atomic.AddInt32(&p.marshalCount, 1)
|
||||
vv, ok := v.(proto.Message)
|
||||
if !ok {
|
||||
return nil, fmt.Errorf("failed to marshal, message is %T, want proto.Message", v)
|
||||
}
|
||||
return proto.Marshal(vv)
|
||||
}
|
||||
|
||||
func (p *countingProtoCodec) Unmarshal(data []byte, v any) error {
|
||||
atomic.AddInt32(&p.unmarshalCount, 1)
|
||||
vv, ok := v.(proto.Message)
|
||||
if !ok {
|
||||
return fmt.Errorf("failed to unmarshal, message is %T, want proto.Message", v)
|
||||
}
|
||||
return proto.Unmarshal(data, vv)
|
||||
}
|
||||
|
||||
func (*countingProtoCodec) Name() string {
|
||||
return "proto"
|
||||
}
|
||||
|
||||
func (s) TestForceServerCodec(t *testing.T) {
|
||||
ss := &stubserver.StubServer{
|
||||
EmptyCallF: func(ctx context.Context, in *testpb.Empty) (*testpb.Empty, error) {
|
||||
return &testpb.Empty{}, nil
|
||||
},
|
||||
}
|
||||
codec := &countingProtoCodec{}
|
||||
if err := ss.Start([]grpc.ServerOption{grpc.ForceServerCodec(codec)}); err != nil {
|
||||
t.Fatalf("Error starting endpoint server: %v", err)
|
||||
}
|
||||
defer ss.Stop()
|
||||
|
||||
ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
|
||||
defer cancel()
|
||||
|
||||
if _, err := ss.Client.EmptyCall(ctx, &testpb.Empty{}); err != nil {
|
||||
t.Fatalf("ss.Client.EmptyCall(_, _) = _, %v; want _, nil", err)
|
||||
}
|
||||
|
||||
unmarshalCount := atomic.LoadInt32(&codec.unmarshalCount)
|
||||
const wantUnmarshalCount = 1
|
||||
if unmarshalCount != wantUnmarshalCount {
|
||||
t.Fatalf("protoCodec.unmarshalCount = %d; want %d", unmarshalCount, wantUnmarshalCount)
|
||||
}
|
||||
marshalCount := atomic.LoadInt32(&codec.marshalCount)
|
||||
const wantMarshalCount = 1
|
||||
if marshalCount != wantMarshalCount {
|
||||
t.Fatalf("protoCodec.marshalCount = %d; want %d", marshalCount, wantMarshalCount)
|
||||
}
|
||||
}
|
||||
|
||||
// renameProtoCodec is an encoding.Codec wrapper that allows customizing the
|
||||
// Name() of another codec.
|
||||
type renameProtoCodec struct {
|
||||
encoding.Codec
|
||||
name string
|
||||
}
|
||||
|
||||
func (r *renameProtoCodec) Name() string { return r.name }
|
||||
|
||||
// TestForceCodecName confirms that the ForceCodec call option sets the subtype
|
||||
// in the content-type header according to the Name() of the codec provided.
|
||||
func (s) TestForceCodecName(t *testing.T) {
|
||||
wantContentTypeCh := make(chan []string, 1)
|
||||
defer close(wantContentTypeCh)
|
||||
|
||||
ss := &stubserver.StubServer{
|
||||
EmptyCallF: func(ctx context.Context, in *testpb.Empty) (*testpb.Empty, error) {
|
||||
md, ok := metadata.FromIncomingContext(ctx)
|
||||
if !ok {
|
||||
return nil, status.Errorf(codes.Internal, "no metadata in context")
|
||||
}
|
||||
if got, want := md["content-type"], <-wantContentTypeCh; !reflect.DeepEqual(got, want) {
|
||||
return nil, status.Errorf(codes.Internal, "got content-type=%q; want [%q]", got, want)
|
||||
}
|
||||
return &testpb.Empty{}, nil
|
||||
},
|
||||
}
|
||||
if err := ss.Start([]grpc.ServerOption{grpc.ForceServerCodec(encoding.GetCodec("proto"))}); err != nil {
|
||||
t.Fatalf("Error starting endpoint server: %v", err)
|
||||
}
|
||||
defer ss.Stop()
|
||||
|
||||
ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
|
||||
defer cancel()
|
||||
|
||||
codec := &renameProtoCodec{Codec: encoding.GetCodec("proto"), name: "some-test-name"}
|
||||
wantContentTypeCh <- []string{"application/grpc+some-test-name"}
|
||||
if _, err := ss.Client.EmptyCall(ctx, &testpb.Empty{}, grpc.ForceCodec(codec)); err != nil {
|
||||
t.Fatalf("ss.Client.EmptyCall(_, _) = _, %v; want _, nil", err)
|
||||
}
|
||||
|
||||
// Confirm the name is converted to lowercase before transmitting.
|
||||
codec.name = "aNoTHeRNaME"
|
||||
wantContentTypeCh <- []string{"application/grpc+anothername"}
|
||||
if _, err := ss.Client.EmptyCall(ctx, &testpb.Empty{}, grpc.ForceCodec(codec)); err != nil {
|
||||
t.Fatalf("ss.Client.EmptyCall(_, _) = _, %v; want _, nil", err)
|
||||
}
|
||||
}
|
||||
|
|
@ -51,7 +51,6 @@ import (
|
|||
"google.golang.org/grpc/connectivity"
|
||||
"google.golang.org/grpc/credentials"
|
||||
"google.golang.org/grpc/credentials/insecure"
|
||||
"google.golang.org/grpc/encoding"
|
||||
"google.golang.org/grpc/health"
|
||||
"google.golang.org/grpc/internal"
|
||||
"google.golang.org/grpc/internal/binarylog"
|
||||
|
|
@ -507,7 +506,6 @@ type test struct {
|
|||
unaryClientInt grpc.UnaryClientInterceptor
|
||||
streamClientInt grpc.StreamClientInterceptor
|
||||
sc <-chan grpc.ServiceConfig
|
||||
customCodec encoding.Codec
|
||||
clientInitialWindowSize int32
|
||||
clientInitialConnWindowSize int32
|
||||
perRPCCreds credentials.PerRPCCredentials
|
||||
|
|
@ -830,9 +828,6 @@ func (te *test) configDial(opts ...grpc.DialOption) ([]grpc.DialOption, string)
|
|||
if te.perRPCCreds != nil {
|
||||
opts = append(opts, grpc.WithPerRPCCredentials(te.perRPCCreds))
|
||||
}
|
||||
if te.customCodec != nil {
|
||||
opts = append(opts, grpc.WithDefaultCallOptions(grpc.ForceCodec(te.customCodec)))
|
||||
}
|
||||
if te.srvAddr == "" {
|
||||
te.srvAddr = "client.side.only.test"
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue