go.uber.org/yarpc@v1.72.1/api/encoding/call_test.go

// Copyright (c) 2022 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package encoding

import (
	"context"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	"go.uber.org/yarpc/api/transport"
)

func TestNilCall(t *testing.T) {
	call := CallFromContext(context.Background())
	require.Nil(t, call)

	assert.Equal(t, "", call.Caller())
	assert.Equal(t, "", call.Service())
	assert.Equal(t, "", call.Transport())
	assert.Equal(t, "", string(call.Encoding()))
	assert.Equal(t, "", call.Procedure())
	assert.Equal(t, "", call.ShardKey())
	assert.Equal(t, "", call.RoutingKey())
	assert.Equal(t, "", call.RoutingDelegate())
	assert.Equal(t, "", call.CallerProcedure())
	assert.Equal(t, "", call.Header("foo"))
	assert.Empty(t, call.HeaderNames())
	assert.Nil(t, call.OriginalHeaders())

	assert.Error(t, call.WriteResponseHeader("foo", "bar"))
}

func TestReadFromRequest(t *testing.T) {
	ctx, icall := NewInboundCall(context.Background())
	icall.ReadFromRequest(&transport.Request{
		Service:         "service",
		Transport:       "transport",
		Caller:          "caller",
		Encoding:        transport.Encoding("raw"),
		Procedure:       "proc",
		ShardKey:        "sk",
		RoutingKey:      "rk",
		RoutingDelegate: "rd",
		CallerProcedure: "cp",
		// later header's key/value takes precedence
		Headers: transport.NewHeaders().With("Foo", "Bar").With("foo", "bar"),
	})
	call := CallFromContext(ctx)
	require.NotNil(t, call)

	assert.Equal(t, "caller", call.Caller())
	assert.Equal(t, "service", call.Service())
	assert.Equal(t, "transport", call.Transport())
	assert.Equal(t, "raw", string(call.Encoding()))
	assert.Equal(t, "proc", call.Procedure())
	assert.Equal(t, "sk", call.ShardKey())
	assert.Equal(t, "rk", call.RoutingKey())
	assert.Equal(t, "rd", call.RoutingDelegate())
	assert.Equal(t, "bar", call.Header("foo"))
	assert.Equal(t, map[string]string{"Foo": "Bar", "foo": "bar"}, call.OriginalHeaders())
	assert.Equal(t, "cp", call.CallerProcedure())
	assert.Len(t, call.HeaderNames(), 1)

	assert.NoError(t, call.WriteResponseHeader("foo2", "bar2"))
	assert.Equal(t, icall.resHeaders[0].k, "foo2")
	assert.Equal(t, icall.resHeaders[0].v, "bar2")
}

func TestReadFromRequestMeta(t *testing.T) {
	ctx, icall := NewInboundCall(context.Background())
	icall.ReadFromRequestMeta(&transport.RequestMeta{
		Service:         "service",
		Caller:          "caller",
		Transport:       "transport",
		Encoding:        transport.Encoding("raw"),
		Procedure:       "proc",
		ShardKey:        "sk",
		RoutingKey:      "rk",
		RoutingDelegate: "rd",
		CallerProcedure: "cp",
		// later header's key/value takes precedence
		Headers: transport.NewHeaders().With("Foo", "Bar").With("foo", "bar"),
	})
	call := CallFromContext(ctx)
	require.NotNil(t, call)

	assert.Equal(t, "caller", call.Caller())
	assert.Equal(t, "service", call.Service())
	assert.Equal(t, "transport", call.Transport())
	assert.Equal(t, "raw", string(call.Encoding()))
	assert.Equal(t, "proc", call.Procedure())
	assert.Equal(t, "sk", call.ShardKey())
	assert.Equal(t, "rk", call.RoutingKey())
	assert.Equal(t, "rd", call.RoutingDelegate())
	assert.Equal(t, "cp", call.CallerProcedure())
	assert.Equal(t, "bar", call.Header("foo"))
	assert.Equal(t, map[string]string{"Foo": "Bar", "foo": "bar"}, call.OriginalHeaders())
	assert.Len(t, call.HeaderNames(), 1)

	assert.NoError(t, call.WriteResponseHeader("foo2", "bar2"))
	assert.Equal(t, icall.resHeaders[0].k, "foo2")
	assert.Equal(t, icall.resHeaders[0].v, "bar2")
}

func TestDisabledResponseHeaders(t *testing.T) {
	ctx, icall := NewInboundCallWithOptions(context.Background(), DisableResponseHeaders())
	icall.ReadFromRequest(&transport.Request{
		Service:         "service",
		Transport:       "transport",
		Caller:          "caller",
		Encoding:        transport.Encoding("raw"),
		Procedure:       "proc",
		ShardKey:        "sk",
		RoutingKey:      "rk",
		RoutingDelegate: "rd",
		CallerProcedure: "cp",
		Headers:         transport.NewHeaders().With("foo", "bar"),
	})
	call := CallFromContext(ctx)
	require.NotNil(t, call)

	assert.Equal(t, "caller", call.Caller())
	assert.Equal(t, "service", call.Service())
	assert.Equal(t, "transport", call.Transport())
	assert.Equal(t, "raw", string(call.Encoding()))
	assert.Equal(t, "proc", call.Procedure())
	assert.Equal(t, "sk", call.ShardKey())
	assert.Equal(t, "rk", call.RoutingKey())
	assert.Equal(t, "rd", call.RoutingDelegate())
	assert.Equal(t, "cp", call.CallerProcedure())
	assert.Equal(t, "bar", call.Header("foo"))
	assert.Len(t, call.HeaderNames(), 1)

	assert.Error(t, call.WriteResponseHeader("foo", "bar"))
}