| // Copyright Istio 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 cmd |
| |
| import ( |
| "path/filepath" |
| "strings" |
| "testing" |
| ) |
| |
| import ( |
| "github.com/google/go-cmp/cmp" |
| ) |
| |
| import ( |
| testutil "github.com/apache/dubbo-go-pixiu/pilot/test/util" |
| "github.com/apache/dubbo-go-pixiu/tools/istio-clean-iptables/pkg/config" |
| "github.com/apache/dubbo-go-pixiu/tools/istio-iptables/pkg/constants" |
| ) |
| |
| func constructTestConfig() *config.Config { |
| return &config.Config{ |
| ProxyUID: constants.DefaultProxyUID, |
| ProxyGID: constants.DefaultProxyUID, |
| OwnerGroupsInclude: constants.OwnerGroupsInclude.DefaultValue, |
| } |
| } |
| |
| func TestIptables(t *testing.T) { |
| cases := []struct { |
| name string |
| config func(cfg *config.Config) |
| }{ |
| { |
| "empty", |
| func(*config.Config) {}, |
| }, |
| { |
| "dns", |
| func(cfg *config.Config) { |
| cfg.RedirectDNS = true |
| }, |
| }, |
| { |
| "dns-uid-gid", |
| func(cfg *config.Config) { |
| cfg.RedirectDNS = true |
| cfg.DNSServersV4 = []string{"127.0.0.53"} |
| cfg.DNSServersV6 = []string{"::127.0.0.53"} |
| cfg.ProxyGID = "1,2" |
| cfg.ProxyUID = "3,4" |
| }, |
| }, |
| { |
| "outbound-owner-groups", |
| func(cfg *config.Config) { |
| cfg.RedirectDNS = true |
| cfg.OwnerGroupsInclude = "java,202" |
| }, |
| }, |
| { |
| "outbound-owner-groups-exclude", |
| func(cfg *config.Config) { |
| cfg.RedirectDNS = true |
| cfg.OwnerGroupsExclude = "888,ftp" |
| }, |
| }, |
| } |
| for _, tt := range cases { |
| t.Run(tt.name, func(t *testing.T) { |
| cfg := constructTestConfig() |
| tt.config(cfg) |
| |
| ext := &DependenciesStub{} |
| cleaner := NewIptablesCleaner(cfg, ext) |
| |
| cleaner.Run() |
| |
| compareToGolden(t, tt.name, ext.ExecutedAll) |
| |
| expectedExecutedNormally := []string{"iptables-save", "ip6tables-save"} |
| if diff := cmp.Diff(ext.ExecutedNormally, expectedExecutedNormally); diff != "" { |
| t.Fatalf("Executed normally commands: got\n%v\nwant\n%vdiff %v", |
| ext.ExecutedNormally, expectedExecutedNormally, diff) |
| } |
| |
| expectedExecutedQuietly := ext.ExecutedAll[:len(ext.ExecutedAll)-len(expectedExecutedNormally)] |
| if diff := cmp.Diff(ext.ExecutedQuietly, expectedExecutedQuietly); diff != "" { |
| t.Fatalf("Executed quietly commands: got\n%v\nwant\n%vdiff %v", |
| ext.ExecutedQuietly, expectedExecutedQuietly, diff) |
| } |
| }) |
| } |
| } |
| |
| func compareToGolden(t *testing.T, name string, actual []string) { |
| t.Helper() |
| gotBytes := []byte(strings.Join(actual, "\n")) |
| goldenFile := filepath.Join("testdata", name+".golden") |
| testutil.CompareContent(t, gotBytes, goldenFile) |
| } |
| |
| type DependenciesStub struct { |
| ExecutedNormally []string |
| ExecutedQuietly []string |
| ExecutedAll []string |
| } |
| |
| func (s *DependenciesStub) RunOrFail(cmd string, args ...string) { |
| s.execute(false /*quietly*/, cmd, args...) |
| } |
| |
| func (s *DependenciesStub) Run(cmd string, args ...string) error { |
| s.execute(false /*quietly*/, cmd, args...) |
| return nil |
| } |
| |
| func (s *DependenciesStub) RunQuietlyAndIgnore(cmd string, args ...string) { |
| s.execute(true /*quietly*/, cmd, args...) |
| } |
| |
| func (s *DependenciesStub) execute(quietly bool, cmd string, args ...string) { |
| cmdline := strings.Join(append([]string{cmd}, args...), " ") |
| s.ExecutedAll = append(s.ExecutedAll, cmdline) |
| if quietly { |
| s.ExecutedQuietly = append(s.ExecutedQuietly, cmdline) |
| } else { |
| s.ExecutedNormally = append(s.ExecutedNormally, cmdline) |
| } |
| } |