mirror of https://github.com/grpc/grpc-go.git
111 lines
2.8 KiB
Go
111 lines
2.8 KiB
Go
/*
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*
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* Copyright 2024 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package delegatingresolver
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import (
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"errors"
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"net/http"
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"net/url"
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"testing"
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"github.com/google/go-cmp/cmp"
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"google.golang.org/grpc/internal/grpctest"
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)
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type s struct {
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grpctest.Tester
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}
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func Test(t *testing.T) {
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grpctest.RunSubTests(t, s{})
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}
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const (
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targetTestAddr = "test.com"
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envProxyAddr = "proxytest.com"
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)
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// overrideHTTPSProxyFromEnvironment function overwrites HTTPSProxyFromEnvironment and
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// returns a function to restore the default values.
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func overrideHTTPSProxyFromEnvironment(hpfe func(req *http.Request) (*url.URL, error)) func() {
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HTTPSProxyFromEnvironment = hpfe
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return func() {
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HTTPSProxyFromEnvironment = nil
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}
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}
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// Tests that the proxyURLForTarget function correctly resolves the proxy URL
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// for a given target address. Tests all the possible output cases.
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func (s) TestproxyURLForTargetEnv(t *testing.T) {
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err := errors.New("invalid proxy url")
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tests := []struct {
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name string
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hpfeFunc func(req *http.Request) (*url.URL, error)
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wantURL *url.URL
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wantErr error
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}{
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{
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name: "valid_proxy_url_and_nil_error",
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hpfeFunc: func(_ *http.Request) (*url.URL, error) {
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return &url.URL{
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Scheme: "https",
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Host: "proxy.example.com",
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}, nil
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},
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wantURL: &url.URL{
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Scheme: "https",
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Host: "proxy.example.com",
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},
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},
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{
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name: "invalid_proxy_url_and_non-nil_error",
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hpfeFunc: func(_ *http.Request) (*url.URL, error) {
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return &url.URL{
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Scheme: "https",
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Host: "notproxy.example.com",
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}, err
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},
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wantURL: &url.URL{
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Scheme: "https",
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Host: "notproxy.example.com",
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},
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wantErr: err,
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},
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{
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name: "nil_proxy_url_and_nil_error",
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hpfeFunc: func(_ *http.Request) (*url.URL, error) {
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return nil, nil
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},
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wantURL: nil,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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defer overrideHTTPSProxyFromEnvironment(tt.hpfeFunc)()
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got, err := proxyURLForTarget(targetTestAddr)
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if err != tt.wantErr {
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t.Errorf("parsedProxyURLForProxy(%v) failed with error :%v, want %v\n", targetTestAddr, err, tt.wantErr)
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}
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if !cmp.Equal(got, tt.wantURL) {
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t.Fatalf("parsedProxyURLForProxy(%v) = %v, want %v\n", targetTestAddr, got, tt.wantURL)
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}
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})
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}
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}
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