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kratos/middleware/tracing/metadata_test.go

89 lines
2.2 KiB

package tracing
import (
"context"
"testing"
"github.com/go-kratos/kratos/v2"
"github.com/go-kratos/kratos/v2/metadata"
"github.com/stretchr/testify/assert"
"go.opentelemetry.io/otel/propagation"
)
func TestMetadata_Inject(t *testing.T) {
type args struct {
appName string
carrier propagation.TextMapCarrier
}
tests := []struct {
name string
args args
want string
}{
{
name: "https://go-kratos.dev",
args: args{"https://go-kratos.dev", propagation.HeaderCarrier{}},
want: "https://go-kratos.dev",
},
{
name: "https://github.com/go-kratos/kratos",
args: args{"https://github.com/go-kratos/kratos", propagation.HeaderCarrier{"mode": []string{"test"}}},
want: "https://github.com/go-kratos/kratos",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
a := kratos.New(kratos.Name(tt.args.appName))
ctx := kratos.NewContext(context.Background(), a)
var m = new(Metadata)
m.Inject(ctx, tt.args.carrier)
if res := tt.args.carrier.Get(serviceHeader); tt.want != res {
t.Errorf("Get(serviceHeader) :%s want: %s", res, tt.want)
}
})
}
}
func TestMetadata_Extract(t *testing.T) {
type args struct {
parent context.Context
carrier propagation.TextMapCarrier
}
tests := []struct {
name string
args args
want string
}{
{
name: "https://go-kratos.dev",
args: args{
parent: context.Background(),
carrier: propagation.HeaderCarrier{"X-Md-Service-Name": []string{"https://go-kratos.dev"}},
},
want: "https://go-kratos.dev",
},
{
name: "https://github.com/go-kratos/kratos",
args: args{
parent: metadata.NewServerContext(context.Background(), metadata.Metadata{}),
carrier: propagation.HeaderCarrier{"X-Md-Service-Name": []string{"https://github.com/go-kratos/kratos"}},
},
want: "https://github.com/go-kratos/kratos",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
b := Metadata{}
ctx := b.Extract(tt.args.parent, tt.args.carrier)
md, ok := metadata.FromServerContext(ctx)
assert.Equal(t, ok, true)
assert.Equal(t, md.Get(serviceHeader), tt.want)
})
}
}
func TestFields(t *testing.T) {
b := Metadata{}
assert.Equal(t, b.Fields(), []string{"x-md-service-name"})
}