105 lines
3.0 KiB
Go
105 lines
3.0 KiB
Go
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package core
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import (
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"encoding/json"
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"os"
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"path/filepath"
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"runtime"
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"testing"
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"github.com/metacubex/mihomo/constant"
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)
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func withSpillHome(t *testing.T, threshold int) string {
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t.Helper()
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previousHome := constant.Path.HomeDir()
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previousThreshold := spillThreshold
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home := t.TempDir()
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constant.SetHomeDir(home)
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spillThreshold = threshold
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t.Cleanup(func() {
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constant.SetHomeDir(previousHome)
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spillThreshold = previousThreshold
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})
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return home
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}
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func getConfigCall(t *testing.T, id string) *MethodCall {
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t.Helper()
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path := filepath.Join(t.TempDir(), "profile.yaml")
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if err := os.WriteFile(path, []byte("mode: rule\nrules:\n - MATCH,DIRECT\n"), 0o600); err != nil {
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t.Fatalf("write profile: %v", err)
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}
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arguments, _ := json.Marshal(path)
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return &MethodCall{ID: id, Method: getConfigMethod, Arguments: arguments}
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}
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func TestHandleMethodCallSpillsALargeResultToAFile(t *testing.T) {
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home := withSpillHome(t, 64)
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frame := handleMethodCall(getConfigCall(t, "7"))
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var envelope MethodResponse
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if err := json.Unmarshal(frame, &envelope); err != nil {
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t.Fatalf("response is not valid JSON: %v", err)
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}
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if envelope.ID != "7" || envelope.Result != nil || envelope.Error != nil {
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t.Fatalf("envelope = %+v, want only the id and the file", envelope)
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}
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if filepath.Dir(envelope.File) != filepath.Join(home, spilledResponseDirName) {
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t.Fatalf("file = %s, want it under the home directory's spill directory", envelope.File)
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}
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data, err := os.ReadFile(envelope.File)
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if err != nil {
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t.Fatalf("read spilled response: %v", err)
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}
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var spilled struct {
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ID string `json:"id"`
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Result map[string]any `json:"result"`
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}
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if err := json.Unmarshal(data, &spilled); err != nil {
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t.Fatalf("spilled response is not valid JSON: %v", err)
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}
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if spilled.ID != "7" || spilled.Result["mode"] != "rule" {
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t.Errorf("spilled response = %+v, want the full answer to call 7", spilled)
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}
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if runtime.GOOS != "windows" {
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info, _ := os.Stat(envelope.File)
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if info.Mode().Perm() != 0o644 {
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t.Errorf("mode = %v, want the host to be able to read it", info.Mode().Perm())
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}
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}
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}
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func TestHandleMethodCallAnswersInlineUnderTheThreshold(t *testing.T) {
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home := withSpillHome(t, responseSpillThreshold)
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frame := handleMethodCall(getConfigCall(t, "8"))
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var envelope MethodResponse
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if err := json.Unmarshal(frame, &envelope); err != nil {
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t.Fatalf("response is not valid JSON: %v", err)
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}
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if envelope.File != "" || envelope.Result == nil {
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t.Errorf("envelope = %+v, want the result inline", envelope)
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}
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if _, err := os.Stat(filepath.Join(home, spilledResponseDirName)); !os.IsNotExist(err) {
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t.Errorf("stat spill directory = %v, want nothing written", err)
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}
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}
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func TestClearSpilledResponsesKeepsTheDirectory(t *testing.T) {
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home := withSpillHome(t, 64)
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handleMethodCall(getConfigCall(t, "9"))
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clearSpilledResponses()
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entries, err := os.ReadDir(filepath.Join(home, spilledResponseDirName))
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if err != nil {
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t.Fatalf("read spill directory: %v", err)
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}
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if len(entries) != 0 {
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t.Errorf("entries = %v, want none left", entries)
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}
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}
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