| /* |
| * |
| * Copyright 2021 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 ( |
| "context" |
| "errors" |
| "net" |
| "net/url" |
| "testing" |
| "time" |
| |
| "github.com/google/go-cmp/cmp" |
| |
| "google.golang.org/grpc/resolver" |
| ) |
| |
| func (s) TestParsedTarget_Success_WithoutCustomDialer(t *testing.T) { |
| defScheme := resolver.GetDefaultScheme() |
| tests := []struct { |
| target string |
| wantParsed resolver.Target |
| }{ |
| // No scheme is specified. |
| {target: "", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "", URL: url.URL{Scheme: defScheme, Path: "/"}}}, |
| {target: "://", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "://", URL: url.URL{Scheme: defScheme, Path: "/://"}}}, |
| {target: ":///", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: ":///", URL: url.URL{Scheme: defScheme, Path: "/:///"}}}, |
| {target: "://a/", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "://a/", URL: url.URL{Scheme: defScheme, Path: "/://a/"}}}, |
| {target: ":///a", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: ":///a", URL: url.URL{Scheme: defScheme, Path: "/:///a"}}}, |
| {target: "://a/b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "://a/b", URL: url.URL{Scheme: defScheme, Path: "/://a/b"}}}, |
| {target: "/", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "/", URL: url.URL{Scheme: defScheme, Path: "//"}}}, |
| {target: "a/b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a/b", URL: url.URL{Scheme: defScheme, Path: "/a/b"}}}, |
| {target: "a//b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a//b", URL: url.URL{Scheme: defScheme, Path: "/a//b"}}}, |
| {target: "google.com", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "google.com", URL: url.URL{Scheme: defScheme, Path: "/google.com"}}}, |
| {target: "google.com/?a=b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "google.com/", URL: url.URL{Scheme: defScheme, Path: "/google.com/", RawQuery: "a=b"}}}, |
| {target: "/unix/socket/address", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "/unix/socket/address", URL: url.URL{Scheme: defScheme, Path: "//unix/socket/address"}}}, |
| |
| // An unregistered scheme is specified. |
| {target: "a:///", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a:///", URL: url.URL{Scheme: defScheme, Path: "/a:///"}}}, |
| {target: "a://b/", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a://b/", URL: url.URL{Scheme: defScheme, Path: "/a://b/"}}}, |
| {target: "a:///b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a:///b", URL: url.URL{Scheme: defScheme, Path: "/a:///b"}}}, |
| {target: "a://b/c", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a://b/c", URL: url.URL{Scheme: defScheme, Path: "/a://b/c"}}}, |
| {target: "a:b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a:b", URL: url.URL{Scheme: defScheme, Path: "/a:b"}}}, |
| {target: "a:/b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a:/b", URL: url.URL{Scheme: defScheme, Path: "/a:/b"}}}, |
| {target: "a://b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a://b", URL: url.URL{Scheme: defScheme, Path: "/a://b"}}}, |
| |
| // A registered scheme is specified. |
| {target: "dns:///google.com", wantParsed: resolver.Target{Scheme: "dns", Authority: "", Endpoint: "google.com", URL: url.URL{Scheme: "dns", Path: "/google.com"}}}, |
| {target: "dns://a.server.com/google.com", wantParsed: resolver.Target{Scheme: "dns", Authority: "a.server.com", Endpoint: "google.com", URL: url.URL{Scheme: "dns", Host: "a.server.com", Path: "/google.com"}}}, |
| {target: "dns://a.server.com/google.com/?a=b", wantParsed: resolver.Target{Scheme: "dns", Authority: "a.server.com", Endpoint: "google.com/", URL: url.URL{Scheme: "dns", Host: "a.server.com", Path: "/google.com/", RawQuery: "a=b"}}}, |
| {target: "unix:///a/b/c", wantParsed: resolver.Target{Scheme: "unix", Authority: "", Endpoint: "a/b/c", URL: url.URL{Scheme: "unix", Path: "/a/b/c"}}}, |
| {target: "unix-abstract:a/b/c", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: "a/b/c", URL: url.URL{Scheme: "unix-abstract", Path: "", Opaque: "a/b/c"}}}, |
| {target: "unix-abstract:a b", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: "a b", URL: url.URL{Scheme: "unix-abstract", Path: "", Opaque: "a b"}}}, |
| {target: "unix-abstract:a:b", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: "a:b", URL: url.URL{Scheme: "unix-abstract", Path: "", Opaque: "a:b"}}}, |
| {target: "unix-abstract:a-b", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: "a-b", URL: url.URL{Scheme: "unix-abstract", Path: "", Opaque: "a-b"}}}, |
| {target: "unix-abstract:/ a///://::!@#$%25^&*()b", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: " a///://::!@", URL: url.URL{Scheme: "unix-abstract", Path: "/ a///://::!@", RawPath: "/ a///://::!@", Fragment: "$%^&*()b", RawFragment: "$%25^&*()b"}}}, |
| {target: "unix-abstract:passthrough:abc", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: "passthrough:abc", URL: url.URL{Scheme: "unix-abstract", Path: "", Opaque: "passthrough:abc"}}}, |
| {target: "unix-abstract:unix:///abc", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: "unix:///abc", URL: url.URL{Scheme: "unix-abstract", Path: "", Opaque: "unix:///abc"}}}, |
| {target: "unix-abstract:///a/b/c", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: "a/b/c", URL: url.URL{Scheme: "unix-abstract", Path: "/a/b/c"}}}, |
| {target: "unix-abstract:///", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: "", URL: url.URL{Scheme: "unix-abstract", Path: "/"}}}, |
| {target: "passthrough:///unix:///a/b/c", wantParsed: resolver.Target{Scheme: "passthrough", Authority: "", Endpoint: "unix:///a/b/c", URL: url.URL{Scheme: "passthrough", Path: "/unix:///a/b/c"}}}, |
| |
| // Cases for `scheme:absolute-path`. |
| {target: "dns:/a/b/c", wantParsed: resolver.Target{Scheme: "dns", Authority: "", Endpoint: "a/b/c", URL: url.URL{Scheme: "dns", Path: "/a/b/c"}}}, |
| {target: "unregistered:/a/b/c", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "unregistered:/a/b/c", URL: url.URL{Scheme: defScheme, Path: "/unregistered:/a/b/c"}}}, |
| } |
| |
| for _, test := range tests { |
| t.Run(test.target, func(t *testing.T) { |
| cc, err := Dial(test.target, WithInsecure()) |
| if err != nil { |
| t.Fatalf("Dial(%q) failed: %v", test.target, err) |
| } |
| defer cc.Close() |
| |
| if !cmp.Equal(cc.parsedTarget, test.wantParsed) { |
| t.Errorf("cc.parsedTarget for dial target %q = %+v, want %+v", test.target, cc.parsedTarget, test.wantParsed) |
| } |
| }) |
| } |
| } |
| |
| func (s) TestParsedTarget_Failure_WithoutCustomDialer(t *testing.T) { |
| targets := []string{ |
| "unix://a/b/c", |
| "unix://authority", |
| "unix-abstract://authority/a/b/c", |
| "unix-abstract://authority", |
| } |
| |
| for _, target := range targets { |
| t.Run(target, func(t *testing.T) { |
| if cc, err := Dial(target, WithInsecure()); err == nil { |
| defer cc.Close() |
| t.Fatalf("Dial(%q) succeeded cc.parsedTarget = %+v, expected to fail", target, cc.parsedTarget) |
| } |
| }) |
| } |
| } |
| |
| func (s) TestParsedTarget_WithCustomDialer(t *testing.T) { |
| defScheme := resolver.GetDefaultScheme() |
| tests := []struct { |
| target string |
| wantParsed resolver.Target |
| wantDialerAddress string |
| }{ |
| // unix:[local_path], unix:[/absolute], and unix://[/absolute] have |
| // different behaviors with a custom dialer. |
| { |
| target: "unix:a/b/c", |
| wantParsed: resolver.Target{Scheme: "unix", Authority: "", Endpoint: "a/b/c", URL: url.URL{Scheme: "unix", Opaque: "a/b/c"}}, |
| wantDialerAddress: "unix:a/b/c", |
| }, |
| { |
| target: "unix:/a/b/c", |
| wantParsed: resolver.Target{Scheme: "unix", Authority: "", Endpoint: "a/b/c", URL: url.URL{Scheme: "unix", Path: "/a/b/c"}}, |
| wantDialerAddress: "unix:///a/b/c", |
| }, |
| { |
| target: "unix:///a/b/c", |
| wantParsed: resolver.Target{Scheme: "unix", Authority: "", Endpoint: "a/b/c", URL: url.URL{Scheme: "unix", Path: "/a/b/c"}}, |
| wantDialerAddress: "unix:///a/b/c", |
| }, |
| { |
| target: "dns:///127.0.0.1:50051", |
| wantParsed: resolver.Target{Scheme: "dns", Authority: "", Endpoint: "127.0.0.1:50051", URL: url.URL{Scheme: "dns", Path: "/127.0.0.1:50051"}}, |
| wantDialerAddress: "127.0.0.1:50051", |
| }, |
| { |
| target: ":///127.0.0.1:50051", |
| wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: ":///127.0.0.1:50051", URL: url.URL{Scheme: defScheme, Path: "/:///127.0.0.1:50051"}}, |
| wantDialerAddress: ":///127.0.0.1:50051", |
| }, |
| { |
| target: "dns://authority/127.0.0.1:50051", |
| wantParsed: resolver.Target{Scheme: "dns", Authority: "authority", Endpoint: "127.0.0.1:50051", URL: url.URL{Scheme: "dns", Host: "authority", Path: "/127.0.0.1:50051"}}, |
| wantDialerAddress: "127.0.0.1:50051", |
| }, |
| { |
| target: "://authority/127.0.0.1:50051", |
| wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "://authority/127.0.0.1:50051", URL: url.URL{Scheme: defScheme, Path: "/://authority/127.0.0.1:50051"}}, |
| wantDialerAddress: "://authority/127.0.0.1:50051", |
| }, |
| { |
| target: "/unix/socket/address", |
| wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "/unix/socket/address", URL: url.URL{Scheme: defScheme, Path: "//unix/socket/address"}}, |
| wantDialerAddress: "/unix/socket/address", |
| }, |
| { |
| target: "passthrough://a.server.com/google.com", |
| wantParsed: resolver.Target{Scheme: "passthrough", Authority: "a.server.com", Endpoint: "google.com", URL: url.URL{Scheme: "passthrough", Host: "a.server.com", Path: "/google.com"}}, |
| wantDialerAddress: "google.com", |
| }, |
| } |
| |
| for _, test := range tests { |
| t.Run(test.target, func(t *testing.T) { |
| addrCh := make(chan string, 1) |
| dialer := func(ctx context.Context, address string) (net.Conn, error) { |
| addrCh <- address |
| return nil, errors.New("dialer error") |
| } |
| |
| cc, err := Dial(test.target, WithInsecure(), WithContextDialer(dialer)) |
| if err != nil { |
| t.Fatalf("Dial(%q) failed: %v", test.target, err) |
| } |
| defer cc.Close() |
| |
| select { |
| case addr := <-addrCh: |
| if addr != test.wantDialerAddress { |
| t.Fatalf("address in custom dialer is %q, want %q", addr, test.wantDialerAddress) |
| } |
| case <-time.After(time.Second): |
| t.Fatal("timeout when waiting for custom dialer to be invoked") |
| } |
| if !cmp.Equal(cc.parsedTarget, test.wantParsed) { |
| t.Errorf("cc.parsedTarget for dial target %q = %+v, want %+v", test.target, cc.parsedTarget, test.wantParsed) |
| } |
| }) |
| } |
| } |