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context_test.go
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context_test.go
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package runtime_test
import (
"context"
"encoding/base64"
"net/http"
"reflect"
"testing"
"time"
"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
"google.golang.org/grpc/metadata"
)
const (
emptyForwardMetaCount = 1
)
func TestAnnotateContext_WorksWithEmpty(t *testing.T) {
ctx := context.Background()
expectedRPCName := "/example.Example/Example"
expectedHTTPPathPattern := "/v1"
request, err := http.NewRequestWithContext(ctx, "GET", "http://www.example.com/v1", nil)
if err != nil {
t.Fatalf("http.NewRequestWithContext(ctx, %q, %q, nil) failed with %v; want success", "GET", "http://www.example.com", err)
}
request.Header.Add("Some-Irrelevant-Header", "some value")
annotated, err := runtime.AnnotateContext(ctx, runtime.NewServeMux(), request, expectedRPCName, runtime.WithHTTPPathPattern(expectedHTTPPathPattern))
if err != nil {
t.Errorf("runtime.AnnotateContext(ctx, %#v) failed with %v; want success", request, err)
return
}
md, ok := metadata.FromOutgoingContext(annotated)
if !ok || len(md) != emptyForwardMetaCount {
t.Errorf("Expected %d metadata items in context; got %v", emptyForwardMetaCount, md)
}
}
func TestAnnotateContext_ForwardsGrpcMetadata(t *testing.T) {
ctx := context.Background()
expectedRPCName := "/example.Example/Example"
expectedHTTPPathPattern := "/v1"
request, err := http.NewRequestWithContext(ctx, "GET", "http://www.example.com/v1", nil)
if err != nil {
t.Fatalf("http.NewRequestWithContext(ctx, %q, %q, nil) failed with %v; want success", "GET", "http://www.example.com", err)
}
request.Header.Add("Some-Irrelevant-Header", "some value")
request.Header.Add("Grpc-Metadata-FooBar", "Value1")
request.Header.Add("Grpc-Metadata-Foo-BAZ", "Value2")
request.Header.Add("Grpc-Metadata-foo-bAz", "Value3")
request.Header.Add("Authorization", "Token 1234567890")
annotated, err := runtime.AnnotateContext(ctx, runtime.NewServeMux(), request, expectedRPCName, runtime.WithHTTPPathPattern(expectedHTTPPathPattern))
if err != nil {
t.Errorf("runtime.AnnotateContext(ctx, %#v) failed with %v; want success", request, err)
return
}
md, ok := metadata.FromOutgoingContext(annotated)
if got, want := len(md), emptyForwardMetaCount+4; !ok || got != want {
t.Errorf("metadata items in context = %d want %d: %v", got, want, md)
}
if got, want := md["foobar"], []string{"Value1"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["grpcgateway-foobar"] = %q; want %q`, got, want)
}
if got, want := md["foo-baz"], []string{"Value2", "Value3"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["grpcgateway-foo-baz"] = %q want %q`, got, want)
}
if got, want := md["grpcgateway-authorization"], []string{"Token 1234567890"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["grpcgateway-authorization"] = %q want %q`, got, want)
}
if got, want := md["authorization"], []string{"Token 1234567890"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["authorization"] = %q want %q`, got, want)
}
if m, ok := runtime.RPCMethod(annotated); !ok {
t.Errorf("runtime.RPCMethod(annotated) failed with no value; want %s", expectedRPCName)
} else if m != expectedRPCName {
t.Errorf("runtime.RPCMethod(annotated) failed with %s; want %s", m, expectedRPCName)
}
if m, ok := runtime.HTTPPathPattern(annotated); !ok {
t.Errorf("runtime.HTTPPathPattern(annotated) failed with no value; want %s", expectedHTTPPathPattern)
} else if m != expectedHTTPPathPattern {
t.Errorf("runtime.HTTPPathPattern(annotated) failed with %s; want %s", m, expectedHTTPPathPattern)
}
}
func TestAnnotateContext_ForwardGrpcBinaryMetadata(t *testing.T) {
ctx := context.Background()
expectedRPCName := "/example.Example/Example"
request, err := http.NewRequestWithContext(ctx, "GET", "http://www.example.com", nil)
if err != nil {
t.Fatalf("http.NewRequestWithContext(ctx, %q, %q, nil) failed with %v; want success", "GET", "http://www.example.com", err)
}
binData := []byte("\x00test-binary-data")
request.Header.Add("Grpc-Metadata-Test-Bin", base64.StdEncoding.EncodeToString(binData))
annotated, err := runtime.AnnotateContext(ctx, runtime.NewServeMux(), request, expectedRPCName)
if err != nil {
t.Errorf("runtime.AnnotateContext(ctx, %#v) failed with %v; want success", request, err)
return
}
md, ok := metadata.FromOutgoingContext(annotated)
if !ok || len(md) != emptyForwardMetaCount+1 {
t.Errorf("Expected %d metadata items in context; got %v", emptyForwardMetaCount+1, md)
}
if got, want := md["test-bin"], []string{string(binData)}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["test-bin"] = %q want %q`, got, want)
}
if m, ok := runtime.RPCMethod(annotated); !ok {
t.Errorf("runtime.RPCMethod(annotated) failed with no value; want %s", expectedRPCName)
} else if m != expectedRPCName {
t.Errorf("runtime.RPCMethod(annotated) failed with %s; want %s", m, expectedRPCName)
}
}
func TestAnnotateContext_AddsXForwardedHeaders(t *testing.T) {
ctx := context.Background()
expectedRPCName := "/example.Example/Example"
request, err := http.NewRequestWithContext(ctx, "GET", "http://bar.foo.example.com", nil)
if err != nil {
t.Fatalf("http.NewRequestWithContext(ctx, %q, %q, nil) failed with %v; want success", "GET", "http://bar.foo.example.com", err)
}
request.RemoteAddr = "192.0.2.100:12345" // client
serveMux := runtime.NewServeMux(runtime.WithIncomingHeaderMatcher(func(key string) (string, bool) {
return key, true
}))
annotated, err := runtime.AnnotateContext(ctx, serveMux, request, expectedRPCName)
if err != nil {
t.Errorf("runtime.AnnotateContext(ctx, %#v) failed with %v; want success", request, err)
return
}
md, ok := metadata.FromOutgoingContext(annotated)
if !ok || len(md) != emptyForwardMetaCount+1 {
t.Errorf("Expected %d metadata items in context; got %v", emptyForwardMetaCount+1, md)
}
if got, want := md["x-forwarded-host"], []string{"bar.foo.example.com"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["host"] = %v; want %v`, got, want)
}
if got, want := md["x-forwarded-for"], []string{"192.0.2.100"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["x-forwarded-for"] = %v want %v`, got, want)
}
if m, ok := runtime.RPCMethod(annotated); !ok {
t.Errorf("runtime.RPCMethod(annotated) failed with no value; want %s", expectedRPCName)
} else if m != expectedRPCName {
t.Errorf("runtime.RPCMethod(annotated) failed with %s; want %s", m, expectedRPCName)
}
}
func TestAnnotateContext_AppendsToExistingXForwardedHeaders(t *testing.T) {
ctx := context.Background()
expectedRPCName := "/example.Example/Example"
request, err := http.NewRequestWithContext(ctx, "GET", "http://bar.foo.example.com", nil)
if err != nil {
t.Fatalf("http.NewRequestWithContext(ctx, %q, %q, nil) failed with %v; want success", "GET", "http://bar.foo.example.com", err)
}
request.Header.Add("X-Forwarded-Host", "qux.example.com")
request.Header.Add("X-Forwarded-For", "192.0.2.100") // client
request.Header.Add("X-Forwarded-For", "192.0.2.101, 192.0.2.102") // intermediate proxies
request.RemoteAddr = "192.0.2.200:12345" // final proxy
serveMux := runtime.NewServeMux(runtime.WithIncomingHeaderMatcher(func(key string) (string, bool) {
return key, true
}))
annotated, err := runtime.AnnotateContext(ctx, serveMux, request, expectedRPCName)
if err != nil {
t.Errorf("runtime.AnnotateContext(ctx, %#v) failed with %v; want success", request, err)
return
}
md, ok := metadata.FromOutgoingContext(annotated)
if !ok || len(md) != emptyForwardMetaCount+1 {
t.Errorf("Expected %d metadata items in context; got %v", emptyForwardMetaCount+1, md)
}
if got, want := md["x-forwarded-host"], []string{"qux.example.com"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["host"] = %v; want %v`, got, want)
}
// Note: it must be in order client, proxy1, proxy2
if got, want := md["x-forwarded-for"], []string{"192.0.2.100, 192.0.2.101, 192.0.2.102, 192.0.2.200"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["x-forwarded-for"] = %v want %v`, got, want)
}
if m, ok := runtime.RPCMethod(annotated); !ok {
t.Errorf("runtime.RPCMethod(annotated) failed with no value; want %s", expectedRPCName)
} else if m != expectedRPCName {
t.Errorf("runtime.RPCMethod(annotated) failed with %s; want %s", m, expectedRPCName)
}
}
func TestAnnotateContext_SupportsTimeouts(t *testing.T) {
ctx := context.Background()
expectedRPCName := "/example.Example/Example"
request, err := http.NewRequestWithContext(ctx, "GET", "http://example.com", nil)
if err != nil {
t.Fatalf(`http.NewRequestWithContext(ctx, "GET", "http://example.com", nil) failed with %v; want success`, err)
}
annotated, err := runtime.AnnotateContext(ctx, runtime.NewServeMux(), request, expectedRPCName)
if err != nil {
t.Errorf("runtime.AnnotateContext(ctx, %#v) failed with %v; want success", request, err)
return
}
if _, ok := annotated.Deadline(); ok {
// no deadline by default
t.Errorf("annotated.Deadline() = _, true; want _, false")
}
const acceptableError = 50 * time.Millisecond
runtime.DefaultContextTimeout = 10 * time.Second
annotated, err = runtime.AnnotateContext(ctx, runtime.NewServeMux(), request, expectedRPCName)
if err != nil {
t.Errorf("runtime.AnnotateContext(ctx, %#v) failed with %v; want success", request, err)
return
}
deadline, ok := annotated.Deadline()
if !ok {
t.Errorf("annotated.Deadline() = _, false; want _, true")
}
if got, want := time.Until(deadline), runtime.DefaultContextTimeout; got-want > acceptableError || got-want < -acceptableError {
t.Errorf("time.Until(deadline) = %v; want %v; with error %v", got, want, acceptableError)
}
for _, spec := range []struct {
timeout string
want time.Duration
}{
{
timeout: "17H",
want: 17 * time.Hour,
},
{
timeout: "19M",
want: 19 * time.Minute,
},
{
timeout: "23S",
want: 23 * time.Second,
},
{
timeout: "1009m",
want: 1009 * time.Millisecond,
},
{
timeout: "1000003u",
want: 1000003 * time.Microsecond,
},
{
timeout: "100000007n",
want: 100000007 * time.Nanosecond,
},
} {
request.Header.Set("Grpc-Timeout", spec.timeout)
annotated, err = runtime.AnnotateContext(ctx, runtime.NewServeMux(), request, expectedRPCName)
if err != nil {
t.Errorf("runtime.AnnotateContext(ctx, %#v) failed with %v; want success", request, err)
return
}
deadline, ok := annotated.Deadline()
if !ok {
t.Errorf("annotated.Deadline() = _, false; want _, true; timeout = %q", spec.timeout)
}
if got, want := time.Until(deadline), spec.want; got-want > acceptableError || got-want < -acceptableError {
t.Errorf("time.Until(deadline) = %v; want %v; with error %v; timeout= %q", got, want, acceptableError, spec.timeout)
}
if m, ok := runtime.RPCMethod(annotated); !ok {
t.Errorf("runtime.RPCMethod(annotated) failed with no value; want %s", expectedRPCName)
} else if m != expectedRPCName {
t.Errorf("runtime.RPCMethod(annotated) failed with %s; want %s", m, expectedRPCName)
}
}
}
func TestAnnotateContext_SupportsCustomAnnotators(t *testing.T) {
ctx := context.Background()
md1 := func(context.Context, *http.Request) metadata.MD { return metadata.New(map[string]string{"foo": "bar"}) }
md2 := func(context.Context, *http.Request) metadata.MD { return metadata.New(map[string]string{"baz": "qux"}) }
expected := metadata.New(map[string]string{"foo": "bar", "baz": "qux"})
expectedRPCName := "/example.Example/Example"
request, err := http.NewRequestWithContext(ctx, "GET", "http://example.com", nil)
if err != nil {
t.Fatalf(`http.NewRequestWithContext(ctx, "GET", "http://example.com", nil) failed with %v; want success`, err)
}
annotated, err := runtime.AnnotateContext(ctx, runtime.NewServeMux(runtime.WithMetadata(md1), runtime.WithMetadata(md2)), request, expectedRPCName)
if err != nil {
t.Errorf("runtime.AnnotateContext(ctx, %#v) failed with %v; want success", request, err)
return
}
actual, _ := metadata.FromOutgoingContext(annotated)
for key, e := range expected {
if a, ok := actual[key]; !ok || !reflect.DeepEqual(e, a) {
t.Errorf("metadata.MD[%s] = %v; want %v", key, a, e)
}
}
if m, ok := runtime.RPCMethod(annotated); !ok {
t.Errorf("runtime.RPCMethod(annotated) failed with no value; want %s", expectedRPCName)
} else if m != expectedRPCName {
t.Errorf("runtime.RPCMethod(annotated) failed with %s; want %s", m, expectedRPCName)
}
}
func TestAnnotateIncomingContext_WorksWithEmpty(t *testing.T) {
ctx := context.Background()
expectedRPCName := "/example.Example/Example"
expectedHTTPPathPattern := "/v1"
request, err := http.NewRequestWithContext(ctx, "GET", "http://www.example.com/v1", nil)
if err != nil {
t.Fatalf("http.NewRequestWithContext(ctx, %q, %q, nil) failed with %v; want success", "GET", "http://www.example.com", err)
}
request.Header.Add("Some-Irrelevant-Header", "some value")
annotated, err := runtime.AnnotateIncomingContext(ctx, runtime.NewServeMux(), request, expectedRPCName, runtime.WithHTTPPathPattern(expectedHTTPPathPattern))
if err != nil {
t.Errorf("runtime.AnnotateIncomingContext(ctx, %#v) failed with %v; want success", request, err)
return
}
md, ok := metadata.FromIncomingContext(annotated)
if !ok || len(md) != emptyForwardMetaCount {
t.Errorf("Expected %d metadata items in context; got %v", emptyForwardMetaCount, md)
}
if m, ok := runtime.RPCMethod(annotated); !ok {
t.Errorf("runtime.RPCMethod(annotated) failed with no value; want %s", expectedRPCName)
} else if m != expectedRPCName {
t.Errorf("runtime.RPCMethod(annotated) failed with %s; want %s", m, expectedRPCName)
}
}
func TestAnnotateIncomingContext_ForwardsGrpcMetadata(t *testing.T) {
ctx := context.Background()
expectedRPCName := "/example.Example/Example"
expectedHTTPPathPattern := "/v1"
request, err := http.NewRequestWithContext(ctx, "GET", "http://www.example.com/v1", nil)
if err != nil {
t.Fatalf("http.NewRequestWithContext(ctx, %q, %q, nil) failed with %v; want success", "GET", "http://www.example.com", err)
}
request.Header.Add("Some-Irrelevant-Header", "some value")
request.Header.Add("Grpc-Metadata-FooBar", "Value1")
request.Header.Add("Grpc-Metadata-Foo-BAZ", "Value2")
request.Header.Add("Grpc-Metadata-foo-bAz", "Value3")
request.Header.Add("Authorization", "Token 1234567890")
annotated, err := runtime.AnnotateIncomingContext(ctx, runtime.NewServeMux(), request, expectedRPCName, runtime.WithHTTPPathPattern(expectedHTTPPathPattern))
if err != nil {
t.Errorf("runtime.AnnotateIncomingContext(ctx, %#v) failed with %v; want success", request, err)
return
}
md, ok := metadata.FromIncomingContext(annotated)
if got, want := len(md), emptyForwardMetaCount+4; !ok || got != want {
t.Errorf("metadata items in context = %d want %d: %v", got, want, md)
}
if got, want := md["foobar"], []string{"Value1"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["grpcgateway-foobar"] = %q; want %q`, got, want)
}
if got, want := md["foo-baz"], []string{"Value2", "Value3"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["grpcgateway-foo-baz"] = %q want %q`, got, want)
}
if got, want := md["grpcgateway-authorization"], []string{"Token 1234567890"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["grpcgateway-authorization"] = %q want %q`, got, want)
}
if got, want := md["authorization"], []string{"Token 1234567890"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["authorization"] = %q want %q`, got, want)
}
if m, ok := runtime.RPCMethod(annotated); !ok {
t.Errorf("runtime.RPCMethod(annotated) failed with no value; want %s", expectedRPCName)
} else if m != expectedRPCName {
t.Errorf("runtime.RPCMethod(annotated) failed with %s; want %s", m, expectedRPCName)
}
if m, ok := runtime.HTTPPathPattern(annotated); !ok {
t.Errorf("runtime.HTTPPathPattern(annotated) failed with no value; want %s", expectedHTTPPathPattern)
} else if m != expectedHTTPPathPattern {
t.Errorf("runtime.HTTPPathPattern(annotated) failed with %s; want %s", m, expectedHTTPPathPattern)
}
}
func TestAnnotateIncomingContext_ForwardGrpcBinaryMetadata(t *testing.T) {
ctx := context.Background()
expectedRPCName := "/example.Example/Example"
request, err := http.NewRequestWithContext(ctx, "GET", "http://www.example.com", nil)
if err != nil {
t.Fatalf("http.NewRequestWithContext(ctx, %q, %q, nil) failed with %v; want success", "GET", "http://www.example.com", err)
}
binData := []byte("\x00test-binary-data")
request.Header.Add("Grpc-Metadata-Test-Bin", base64.StdEncoding.EncodeToString(binData))
annotated, err := runtime.AnnotateIncomingContext(ctx, runtime.NewServeMux(), request, expectedRPCName)
if err != nil {
t.Errorf("runtime.AnnotateIncomingContext(ctx, %#v) failed with %v; want success", request, err)
return
}
md, ok := metadata.FromIncomingContext(annotated)
if !ok || len(md) != emptyForwardMetaCount+1 {
t.Errorf("Expected %d metadata items in context; got %v", emptyForwardMetaCount+1, md)
}
if got, want := md["test-bin"], []string{string(binData)}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["test-bin"] = %q want %q`, got, want)
}
if m, ok := runtime.RPCMethod(annotated); !ok {
t.Errorf("runtime.RPCMethod(annotated) failed with no value; want %s", expectedRPCName)
} else if m != expectedRPCName {
t.Errorf("runtime.RPCMethod(annotated) failed with %s; want %s", m, expectedRPCName)
}
}
func TestAnnotateIncomingContext_AddsXForwardedHeaders(t *testing.T) {
ctx := context.Background()
expectedRPCName := "/example.Example/Example"
request, err := http.NewRequestWithContext(ctx, "GET", "http://bar.foo.example.com", nil)
if err != nil {
t.Fatalf("http.NewRequestWithContext(ctx, %q, %q, nil) failed with %v; want success", "GET", "http://bar.foo.example.com", err)
}
request.RemoteAddr = "192.0.2.100:12345" // client
serveMux := runtime.NewServeMux(runtime.WithIncomingHeaderMatcher(func(key string) (string, bool) {
return key, true
}))
annotated, err := runtime.AnnotateIncomingContext(ctx, serveMux, request, expectedRPCName)
if err != nil {
t.Errorf("runtime.AnnotateIncomingContext(ctx, %#v) failed with %v; want success", request, err)
return
}
md, ok := metadata.FromIncomingContext(annotated)
if !ok || len(md) != emptyForwardMetaCount+1 {
t.Errorf("Expected %d metadata items in context; got %v", emptyForwardMetaCount+1, md)
}
if got, want := md["x-forwarded-host"], []string{"bar.foo.example.com"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["host"] = %v; want %v`, got, want)
}
if got, want := md["x-forwarded-for"], []string{"192.0.2.100"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["x-forwarded-for"] = %v want %v`, got, want)
}
if m, ok := runtime.RPCMethod(annotated); !ok {
t.Errorf("runtime.RPCMethod(annotated) failed with no value; want %s", expectedRPCName)
} else if m != expectedRPCName {
t.Errorf("runtime.RPCMethod(annotated) failed with %s; want %s", m, expectedRPCName)
}
}
func TestAnnotateIncomingContext_AppendsToExistingXForwardedHeaders(t *testing.T) {
ctx := context.Background()
expectedRPCName := "/example.Example/Example"
request, err := http.NewRequestWithContext(ctx, "GET", "http://bar.foo.example.com", nil)
if err != nil {
t.Fatalf("http.NewRequestWithContext(ctx, %q, %q, nil) failed with %v; want success", "GET", "http://bar.foo.example.com", err)
}
request.Header.Add("X-Forwarded-Host", "qux.example.com")
request.Header.Add("X-Forwarded-For", "192.0.2.100") // client
request.Header.Add("X-Forwarded-For", "192.0.2.101, 192.0.2.102") // intermediate proxies
request.RemoteAddr = "192.0.2.200:12345" // final proxy
serveMux := runtime.NewServeMux(runtime.WithIncomingHeaderMatcher(func(key string) (string, bool) {
return key, true
}))
annotated, err := runtime.AnnotateIncomingContext(ctx, serveMux, request, expectedRPCName)
if err != nil {
t.Errorf("runtime.AnnotateIncomingContext(ctx, %#v) failed with %v; want success", request, err)
return
}
md, ok := metadata.FromIncomingContext(annotated)
if !ok || len(md) != emptyForwardMetaCount+1 {
t.Errorf("Expected %d metadata items in context; got %v", emptyForwardMetaCount+1, md)
}
if got, want := md["x-forwarded-host"], []string{"qux.example.com"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["host"] = %v; want %v`, got, want)
}
// Note: it must be in order client, proxy1, proxy2
if got, want := md["x-forwarded-for"], []string{"192.0.2.100, 192.0.2.101, 192.0.2.102, 192.0.2.200"}; !reflect.DeepEqual(got, want) {
t.Errorf(`md["x-forwarded-for"] = %v want %v`, got, want)
}
if m, ok := runtime.RPCMethod(annotated); !ok {
t.Errorf("runtime.RPCMethod(annotated) failed with no value; want %s", expectedRPCName)
} else if m != expectedRPCName {
t.Errorf("runtime.RPCMethod(annotated) failed with %s; want %s", m, expectedRPCName)
}
}
func TestAnnotateIncomingContext_SupportsTimeouts(t *testing.T) {
// While run all test, TestAnnotateContext_SupportsTimeouts() will change the DefaultContextTimeout, so reset it to zero.
runtime.DefaultContextTimeout = 0 * time.Second
expectedRPCName := "/example.Example/Example"
ctx := context.Background()
request, err := http.NewRequestWithContext(ctx, "GET", "http://example.com", nil)
if err != nil {
t.Fatalf(`http.NewRequestWithContext(ctx, "GET", "http://example.com", nil) failed with %v; want success`, err)
}
annotated, err := runtime.AnnotateIncomingContext(ctx, runtime.NewServeMux(), request, expectedRPCName)
if err != nil {
t.Errorf("runtime.AnnotateIncomingContext(ctx, %#v) failed with %v; want success", request, err)
return
}
if _, ok := annotated.Deadline(); ok {
// no deadline by default
t.Errorf("annotated.Deadline() = _, true; want _, false")
}
const acceptableError = 50 * time.Millisecond
runtime.DefaultContextTimeout = 10 * time.Second
annotated, err = runtime.AnnotateIncomingContext(ctx, runtime.NewServeMux(), request, expectedRPCName)
if err != nil {
t.Errorf("runtime.AnnotateIncomingContext(ctx, %#v) failed with %v; want success", request, err)
return
}
deadline, ok := annotated.Deadline()
if !ok {
t.Errorf("annotated.Deadline() = _, false; want _, true")
}
if got, want := time.Until(deadline), runtime.DefaultContextTimeout; got-want > acceptableError || got-want < -acceptableError {
t.Errorf("time.Until(deadline) = %v; want %v; with error %v", got, want, acceptableError)
}
for _, spec := range []struct {
timeout string
want time.Duration
}{
{
timeout: "17H",
want: 17 * time.Hour,
},
{
timeout: "19M",
want: 19 * time.Minute,
},
{
timeout: "23S",
want: 23 * time.Second,
},
{
timeout: "1009m",
want: 1009 * time.Millisecond,
},
{
timeout: "1000003u",
want: 1000003 * time.Microsecond,
},
{
timeout: "100000007n",
want: 100000007 * time.Nanosecond,
},
} {
request.Header.Set("Grpc-Timeout", spec.timeout)
annotated, err = runtime.AnnotateIncomingContext(ctx, runtime.NewServeMux(), request, expectedRPCName)
if err != nil {
t.Errorf("runtime.AnnotateIncomingContext(ctx, %#v) failed with %v; want success", request, err)
return
}
deadline, ok := annotated.Deadline()
if !ok {
t.Errorf("annotated.Deadline() = _, false; want _, true; timeout = %q", spec.timeout)
}
if got, want := time.Until(deadline), spec.want; got-want > acceptableError || got-want < -acceptableError {
t.Errorf("time.Until(deadline) = %v; want %v; with error %v; timeout= %q", got, want, acceptableError, spec.timeout)
}
if m, ok := runtime.RPCMethod(annotated); !ok {
t.Errorf("runtime.RPCMethod(annotated) failed with no value; want %s", expectedRPCName)
} else if m != expectedRPCName {
t.Errorf("runtime.RPCMethod(annotated) failed with %s; want %s", m, expectedRPCName)
}
}
}
func TestAnnotateIncomingContext_SupportsCustomAnnotators(t *testing.T) {
ctx := context.Background()
md1 := func(context.Context, *http.Request) metadata.MD { return metadata.New(map[string]string{"foo": "bar"}) }
md2 := func(context.Context, *http.Request) metadata.MD { return metadata.New(map[string]string{"baz": "qux"}) }
expected := metadata.New(map[string]string{"foo": "bar", "baz": "qux"})
expectedRPCName := "/example.Example/Example"
request, err := http.NewRequestWithContext(ctx, "GET", "http://example.com", nil)
if err != nil {
t.Fatalf(`http.NewRequestWithContext(ctx, "GET", "http://example.com", nil) failed with %v; want success`, err)
}
annotated, err := runtime.AnnotateIncomingContext(ctx, runtime.NewServeMux(runtime.WithMetadata(md1), runtime.WithMetadata(md2)), request, expectedRPCName)
if err != nil {
t.Errorf("runtime.AnnotateIncomingContext(ctx, %#v) failed with %v; want success", request, err)
return
}
actual, _ := metadata.FromIncomingContext(annotated)
for key, e := range expected {
if a, ok := actual[key]; !ok || !reflect.DeepEqual(e, a) {
t.Errorf("metadata.MD[%s] = %v; want %v", key, a, e)
}
}
if m, ok := runtime.RPCMethod(annotated); !ok {
t.Errorf("runtime.RPCMethod(annotated) failed with no value; want %s", expectedRPCName)
} else if m != expectedRPCName {
t.Errorf("runtime.RPCMethod(annotated) failed with %s; want %s", m, expectedRPCName)
}
}