set sent_at in http_transport

Author: denrase

dart/lib/src/transport/http_transport.dart

@@ -55,6 +55,7 @@ class HttpTransport implements Transport {
     if (filteredEnvelope == null) {
       return SentryId.empty();
     }
+    filteredEnvelope.header.sentAt = _options.clock();
 
     final streamedRequest = await _createStreamedRequest(filteredEnvelope);
     final response = await _options.httpClient
@@ -134,11 +135,9 @@ class HttpTransport implements Transport {
 class _CredentialBuilder {
   final String _authHeader;
 
-  _CredentialBuilder._(String authHeader)
-      : _authHeader = authHeader;
+  _CredentialBuilder._(String authHeader) : _authHeader = authHeader;
 
-  factory _CredentialBuilder(
-      Dsn dsn, String sdkIdentifier) {
+  factory _CredentialBuilder(Dsn dsn, String sdkIdentifier) {
     final authHeader = _buildAuthHeader(
       publicKey: dsn.publicKey,
       secretKey: dsn.secretKey,
@@ -166,9 +165,7 @@ class _CredentialBuilder {
   Map<String, String> configure(Map<String, String> headers) {
     return headers
       ..addAll(
-        <String, String>{
-          'X-Sentry-Auth': _authHeader
-        },
+        <String, String>{'X-Sentry-Auth': _authHeader},
       );
   }
 }

dart/test/transport/http_transport_test.dart

@@ -159,6 +159,31 @@ void main() {
     });
   });
 
+  group('sent_at', () {
+    late Fixture fixture;
+
+    setUp(() {
+      fixture = Fixture();
+    });
+
+    test('capture envelope sets sent_at in header', () async {
+      final sentryEvent = SentryEvent();
+      final envelope = SentryEnvelope.fromEvent(
+        sentryEvent,
+        fixture.options.sdk,
+        dsn: fixture.options.dsn,
+      );
+
+      final httpMock = MockClient((http.Request request) async {
+        return http.Response('{}', 200);
+      });
+      final sut = fixture.getSut(httpMock, MockRateLimiter());
+      await sut.send(envelope);
+
+      expect(envelope.header.sentAt, DateTime.utc(2019));
+    });
+  });
+
   group('client reports', () {
     late Fixture fixture;
 
@@ -232,6 +257,9 @@ class Fixture {
   HttpTransport getSut(http.Client client, RateLimiter rateLimiter) {
     options.httpClient = client;
     options.recorder = clientReportRecorder;
+    options.clock = () {
+      return DateTime.utc(2019);
+    };
     return HttpTransport(options, rateLimiter);
   }
 }