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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package grpc
import (
"fmt"
"net"
"testing"
"time"
"google.golang.org/grpc/resolver"
)
func (s) TestParseTarget(t *testing.T) {
for _, test := range []resolver.Target{
{Scheme: "dns", Authority: "", Endpoint: "google.com"},
{Scheme: "dns", Authority: "a.server.com", Endpoint: "google.com"},
{Scheme: "dns", Authority: "a.server.com", Endpoint: "google.com/?a=b"},
{Scheme: "passthrough", Authority: "", Endpoint: "/unix/socket/address"},
} {
str := test.Scheme + "://" + test.Authority + "/" + test.Endpoint
got := parseTarget(str)
if got != test {
t.Errorf("parseTarget(%q) = %+v, want %+v", str, got, test)
}
}
}
func (s) TestParseTargetString(t *testing.T) {
for _, test := range []struct {
targetStr string
want resolver.Target
}{
{targetStr: "", want: resolver.Target{Scheme: "", Authority: "", Endpoint: ""}},
{targetStr: ":///", want: resolver.Target{Scheme: "", Authority: "", Endpoint: ""}},
{targetStr: "a:///", want: resolver.Target{Scheme: "a", Authority: "", Endpoint: ""}},
{targetStr: "://a/", want: resolver.Target{Scheme: "", Authority: "a", Endpoint: ""}},
{targetStr: ":///a", want: resolver.Target{Scheme: "", Authority: "", Endpoint: "a"}},
{targetStr: "a://b/", want: resolver.Target{Scheme: "a", Authority: "b", Endpoint: ""}},
{targetStr: "a:///b", want: resolver.Target{Scheme: "a", Authority: "", Endpoint: "b"}},
{targetStr: "://a/b", want: resolver.Target{Scheme: "", Authority: "a", Endpoint: "b"}},
{targetStr: "a://b/c", want: resolver.Target{Scheme: "a", Authority: "b", Endpoint: "c"}},
{targetStr: "dns:///google.com", want: resolver.Target{Scheme: "dns", Authority: "", Endpoint: "google.com"}},
{targetStr: "dns://a.server.com/google.com", want: resolver.Target{Scheme: "dns", Authority: "a.server.com", Endpoint: "google.com"}},
{targetStr: "dns://a.server.com/google.com/?a=b", want: resolver.Target{Scheme: "dns", Authority: "a.server.com", Endpoint: "google.com/?a=b"}},
{targetStr: "/", want: resolver.Target{Scheme: "", Authority: "", Endpoint: "/"}},
{targetStr: "google.com", want: resolver.Target{Scheme: "", Authority: "", Endpoint: "google.com"}},
{targetStr: "google.com/?a=b", want: resolver.Target{Scheme: "", Authority: "", Endpoint: "google.com/?a=b"}},
{targetStr: "/unix/socket/address", want: resolver.Target{Scheme: "", Authority: "", Endpoint: "/unix/socket/address"}},
// If we can only parse part of the target.
{targetStr: "://", want: resolver.Target{Scheme: "", Authority: "", Endpoint: "://"}},
{targetStr: "unix://domain", want: resolver.Target{Scheme: "", Authority: "", Endpoint: "unix://domain"}},
{targetStr: "a:b", want: resolver.Target{Scheme: "", Authority: "", Endpoint: "a:b"}},
{targetStr: "a/b", want: resolver.Target{Scheme: "", Authority: "", Endpoint: "a/b"}},
{targetStr: "a:/b", want: resolver.Target{Scheme: "", Authority: "", Endpoint: "a:/b"}},
{targetStr: "a//b", want: resolver.Target{Scheme: "", Authority: "", Endpoint: "a//b"}},
{targetStr: "a://b", want: resolver.Target{Scheme: "", Authority: "", Endpoint: "a://b"}},
} {
got := parseTarget(test.targetStr)
if got != test.want {
t.Errorf("parseTarget(%q) = %+v, want %+v", test.targetStr, got, test.want)
}
}
}
// The target string with unknown scheme should be kept unchanged and passed to
// the dialer.
func (s) TestDialParseTargetUnknownScheme(t *testing.T) {
for _, test := range []struct {
targetStr string
want string
}{
{"/unix/socket/address", "/unix/socket/address"},
// Special test for "unix:///".
{"unix:///unix/socket/address", "unix:///unix/socket/address"},
// For known scheme.
{"passthrough://a.server.com/google.com", "google.com"},
} {
dialStrCh := make(chan string, 1)
cc, err := Dial(test.targetStr, WithInsecure(), WithDialer(func(addr string, _ time.Duration) (net.Conn, error) {
select {
case dialStrCh <- addr:
default:
}
return nil, fmt.Errorf("test dialer, always error")
}))
if err != nil {
t.Fatalf("Failed to create ClientConn: %v", err)
}
got := <-dialStrCh
cc.Close()
if got != test.want {
t.Errorf("Dial(%q), dialer got %q, want %q", test.targetStr, got, test.want)
}
}
}