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feat(cli): add version header + warning on client-server mismatch. Fixes
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| package grpc | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "testing" | ||
|
|
||
| wfv1 "github.com/argoproj/argo-workflows/v3/pkg/apis/workflow/v1alpha1" | ||
|
|
||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| "google.golang.org/grpc" | ||
| "google.golang.org/grpc/metadata" | ||
| ) | ||
|
|
||
| type mockServerTransportStream struct { | ||
| header metadata.MD | ||
| isError bool | ||
| } | ||
|
|
||
| func (mockServerTransportStream) Method() string { return "" } | ||
| func (msts *mockServerTransportStream) SetHeader(md metadata.MD) error { | ||
| if msts.isError { | ||
| return errors.New("simulate error setting header") | ||
| } | ||
| msts.header = md | ||
| return nil | ||
| } | ||
| func (mockServerTransportStream) SendHeader(md metadata.MD) error { return nil } | ||
| func (mockServerTransportStream) SetTrailer(md metadata.MD) error { return nil } | ||
|
|
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| var _ grpc.ServerTransportStream = &mockServerTransportStream{} | ||
|
|
||
| func TestSetVersionHeaderUnaryServerInterceptor(t *testing.T) { | ||
| version := &wfv1.Version{Version: "v3.1.0"} | ||
| mockReturn := "successful return" | ||
|
|
||
| t.Run("success", func(t *testing.T) { | ||
| handler := func(ctx context.Context, req interface{}) (interface{}, error) { return mockReturn, nil } | ||
| msts := &mockServerTransportStream{} | ||
| ctx := grpc.NewContextWithServerTransportStream(context.Background(), msts) | ||
| interceptor := SetVersionHeaderUnaryServerInterceptor(*version) | ||
|
|
||
| m, err := interceptor(ctx, nil, &grpc.UnaryServerInfo{}, handler) | ||
|
|
||
| require.NoError(t, err) | ||
| assert.Equal(t, mockReturn, m) | ||
| assert.Equal(t, metadata.Pairs(ArgoVersionHeader, version.Version), msts.header) | ||
| }) | ||
|
|
||
| t.Run("upstream error handling", func(t *testing.T) { | ||
| handler := func(ctx context.Context, req interface{}) (interface{}, error) { return nil, errors.New("error") } | ||
| msts := &mockServerTransportStream{} | ||
| ctx := grpc.NewContextWithServerTransportStream(context.Background(), msts) | ||
| interceptor := SetVersionHeaderUnaryServerInterceptor(*version) | ||
|
|
||
| _, err := interceptor(ctx, nil, &grpc.UnaryServerInfo{}, handler) | ||
|
|
||
| require.Error(t, err) | ||
| assert.Empty(t, msts.header) | ||
| }) | ||
|
|
||
| t.Run("SetHeader error handling", func(t *testing.T) { | ||
| handler := func(ctx context.Context, req interface{}) (interface{}, error) { | ||
| return mockReturn, nil | ||
| } | ||
| msts := &mockServerTransportStream{isError: true} | ||
| ctx := grpc.NewContextWithServerTransportStream(context.Background(), msts) | ||
| interceptor := SetVersionHeaderUnaryServerInterceptor(*version) | ||
|
|
||
| m, err := interceptor(ctx, nil, &grpc.UnaryServerInfo{}, handler) | ||
|
|
||
| require.NoError(t, err) | ||
| require.Equal(t, mockReturn, m) | ||
| assert.Empty(t, msts.header) | ||
| }) | ||
| } | ||
|
|
||
| type mockServerStream struct { | ||
| header metadata.MD | ||
| isError bool | ||
| } | ||
|
|
||
| func (msts mockServerStream) SetHeader(md metadata.MD) error { | ||
| if msts.isError { | ||
| return errors.New("simulate error setting header") | ||
| } | ||
| msts.header.Set(ArgoVersionHeader, md.Get(ArgoVersionHeader)...) | ||
| return nil | ||
| } | ||
| func (mockServerStream) SendHeader(md metadata.MD) error { return nil } | ||
| func (mockServerStream) SetTrailer(md metadata.MD) {} | ||
| func (mockServerStream) Context() context.Context { return context.Background() } | ||
| func (mockServerStream) SendMsg(m any) error { return nil } | ||
| func (mockServerStream) RecvMsg(m any) error { return nil } | ||
|
|
||
| var _ grpc.ServerStream = &mockServerStream{} | ||
|
|
||
| func TestSetVersionHeaderStreamServerInterceptor(t *testing.T) { | ||
| version := &wfv1.Version{Version: "v3.1.0"} | ||
|
|
||
| t.Run("success", func(t *testing.T) { | ||
| handler := func(srv any, stream grpc.ServerStream) error { return nil } | ||
| msts := &mockServerStream{header: metadata.New(nil)} | ||
| interceptor := SetVersionHeaderStreamServerInterceptor(*version) | ||
|
|
||
| err := interceptor(nil, msts, nil, handler) | ||
|
|
||
| require.NoError(t, err) | ||
| assert.Equal(t, metadata.Pairs(ArgoVersionHeader, version.Version), msts.header) | ||
| }) | ||
|
|
||
| t.Run("upstream error handling", func(t *testing.T) { | ||
| handler := func(srv any, stream grpc.ServerStream) error { | ||
| return errors.New("test error") | ||
| } | ||
| msts := &mockServerStream{header: metadata.New(nil)} | ||
| interceptor := SetVersionHeaderStreamServerInterceptor(*version) | ||
|
|
||
| err := interceptor(nil, msts, nil, handler) | ||
|
|
||
| require.Error(t, err, "test error") | ||
| assert.Empty(t, msts.header) | ||
| }) | ||
|
|
||
| t.Run("SetHeader error handling", func(t *testing.T) { | ||
| handler := func(srv any, stream grpc.ServerStream) error { return nil } | ||
| msts := &mockServerStream{isError: true} | ||
| interceptor := SetVersionHeaderStreamServerInterceptor(*version) | ||
|
|
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| err := interceptor(nil, msts, nil, handler) | ||
|
|
||
| require.NoError(t, err) | ||
| assert.Empty(t, msts.header) | ||
| }) | ||
| } |