package metadata

import (
	"testing"

	"golang.org/x/net/context"
)

func TestMetadataContext(t *testing.T) {
	md := Metadata{
		"foo": "bar",
	}

	ctx := NewContext(context.TODO(), md)

	emd, ok := FromContext(ctx)
	if !ok {
		t.Errorf("Unexpected error retrieving metadata, got %t", ok)
	}

	if emd["foo"] != md["foo"] {
		t.Errorf("Expected key: %s val: %s, got key: %s val: %s", "foo", md["foo"], "foo", emd["foo"])
	}

	if i := len(emd); i != 1 {
		t.Errorf("Expected metadata length 1 got %d", i)
	}
}