feat: add durable business task outbox example and fault recovery

examples/task-outbox/internal/outbox/store_test.go

@@ -0,0 +1,63 @@
+package outbox
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"errors"
+	"testing"
+	"time"
+
+	orbit "git.yuntuo.hk/k2safe/orbit/sdk/go"
+)
+
+func testID(t *testing.T) string {
+	t.Helper()
+	id, err := orbit.NewEventMessageID()
+	if err != nil {
+		t.Fatal(err)
+	}
+	return id
+}
+func testRequest(queue string) orbit.SubmitTaskRequest {
+	return orbit.SubmitTaskRequest{QueueID: queue, Handler: "object.prepare", HandlerVersion: "v1", PayloadVersion: "v1", Payload: json.RawMessage(`{"sequence":9007199254740993,"ref":"objects/test"}`), TaskTimeoutMS: 60000}
+}
+func TestFrozenDocumentAndFailureClassification(t *testing.T) {
+	s := &Store{namespace: testID(t), queue: testID(t)}
+	in := testRequest(s.queue)
+	in.TaskTimeoutMS = 0
+	raw, err := s.document(in)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var frozen orbit.SubmitTaskRequest
+	if json.Unmarshal(raw, &frozen) != nil || frozen.TaskTimeoutMS != 86400000 || frozen.Retry.MaxAttempts != 1 || frozen.Retry.AttemptTimeoutMS != 30000 || !bytes.Contains(frozen.Payload, []byte("9007199254740993")) {
+		t.Fatal("frozen defaults or precision changed")
+	}
+	in.QueueID = testID(t)
+	if _, err = s.document(in); !errors.Is(err, ErrInvalid) {
+		t.Fatal("cross queue request frozen")
+	}
+	in = testRequest(s.queue)
+	in.BusinessKey = "operation-\xff"
+	if _, err = s.document(in); !errors.Is(err, ErrInvalid) {
+		t.Fatal("invalid UTF-8 was silently rewritten")
+	}
+	for _, test := range []struct {
+		err         error
+		state, code string
+	}{
+		{context.DeadlineExceeded, "PENDING", "UNCONFIRMED"},
+		{&orbit.APIError{StatusCode: 503, Code: "UNAVAILABLE"}, "PENDING", "UNCONFIRMED"},
+		{&orbit.APIError{StatusCode: 429, RetryAfter: 30 * time.Second}, "PENDING", "BACKPRESSURE"},
+		{&orbit.APIError{StatusCode: 403}, "REVIEW", "AUTHORIZATION"},
+		{&orbit.APIError{StatusCode: 409, Code: "IDEMPOTENCY_CONFLICT"}, "REVIEW", "IDEMPOTENCY_CONFLICT"},
+		{&orbit.HTTPError{StatusCode: 302}, "REVIEW", "HTTP_REJECTED"},
+		{&orbit.HTTPError{StatusCode: 502}, "PENDING", "UNCONFIRMED"},
+	} {
+		state, code, delay := classify(test.err, 100)
+		if state != test.state || code != test.code || delay < time.Second || delay > time.Hour {
+			t.Fatal(state, code, delay)
+		}
+	}
+}