generated/googleapis/test/cloudtrace/v2_test.dart

// ignore_for_file: camel_case_types
// ignore_for_file: comment_references
// ignore_for_file: deprecated_member_use_from_same_package
// ignore_for_file: doc_directive_unknown
// ignore_for_file: lines_longer_than_80_chars
// ignore_for_file: non_constant_identifier_names
// ignore_for_file: prefer_const_declarations
// ignore_for_file: prefer_expression_function_bodies
// ignore_for_file: prefer_final_locals
// ignore_for_file: prefer_interpolation_to_compose_strings
// ignore_for_file: unintended_html_in_doc_comment
// ignore_for_file: unnecessary_brace_in_string_interps
// ignore_for_file: unnecessary_cast
// ignore_for_file: unnecessary_lambdas
// ignore_for_file: unnecessary_string_interpolations
// ignore_for_file: unreachable_from_main
// ignore_for_file: unused_local_variable

import 'dart:async' as async;
import 'dart:convert' as convert;
import 'dart:core' as core;

import 'package:googleapis/cloudtrace/v2.dart' as api;
import 'package:http/http.dart' as http;
import 'package:test/test.dart' as unittest;

import '../test_shared.dart';

core.int buildCounterAnnotation = 0;
api.Annotation buildAnnotation() {
  final o = api.Annotation();
  buildCounterAnnotation++;
  if (buildCounterAnnotation < 3) {
    o.attributes = buildAttributes();
    o.description = buildTruncatableString();
  }
  buildCounterAnnotation--;
  return o;
}

void checkAnnotation(api.Annotation o) {
  buildCounterAnnotation++;
  if (buildCounterAnnotation < 3) {
    checkAttributes(o.attributes!);
    checkTruncatableString(o.description!);
  }
  buildCounterAnnotation--;
}

core.int buildCounterAttributeValue = 0;
api.AttributeValue buildAttributeValue() {
  final o = api.AttributeValue();
  buildCounterAttributeValue++;
  if (buildCounterAttributeValue < 3) {
    o.boolValue = true;
    o.intValue = 'foo';
    o.stringValue = buildTruncatableString();
  }
  buildCounterAttributeValue--;
  return o;
}

void checkAttributeValue(api.AttributeValue o) {
  buildCounterAttributeValue++;
  if (buildCounterAttributeValue < 3) {
    unittest.expect(o.boolValue!, unittest.isTrue);
    unittest.expect(o.intValue!, unittest.equals('foo'));
    checkTruncatableString(o.stringValue!);
  }
  buildCounterAttributeValue--;
}

core.Map<core.String, api.AttributeValue> buildUnnamed0() => {
  'x': buildAttributeValue(),
  'y': buildAttributeValue(),
};

void checkUnnamed0(core.Map<core.String, api.AttributeValue> o) {
  unittest.expect(o, unittest.hasLength(2));
  checkAttributeValue(o['x']!);
  checkAttributeValue(o['y']!);
}

core.int buildCounterAttributes = 0;
api.Attributes buildAttributes() {
  final o = api.Attributes();
  buildCounterAttributes++;
  if (buildCounterAttributes < 3) {
    o.attributeMap = buildUnnamed0();
    o.droppedAttributesCount = 42;
  }
  buildCounterAttributes--;
  return o;
}

void checkAttributes(api.Attributes o) {
  buildCounterAttributes++;
  if (buildCounterAttributes < 3) {
    checkUnnamed0(o.attributeMap!);
    unittest.expect(o.droppedAttributesCount!, unittest.equals(42));
  }
  buildCounterAttributes--;
}

core.List<api.Span> buildUnnamed1() => [buildSpan(), buildSpan()];

void checkUnnamed1(core.List<api.Span> o) {
  unittest.expect(o, unittest.hasLength(2));
  checkSpan(o[0]);
  checkSpan(o[1]);
}

core.int buildCounterBatchWriteSpansRequest = 0;
api.BatchWriteSpansRequest buildBatchWriteSpansRequest() {
  final o = api.BatchWriteSpansRequest();
  buildCounterBatchWriteSpansRequest++;
  if (buildCounterBatchWriteSpansRequest < 3) {
    o.spans = buildUnnamed1();
  }
  buildCounterBatchWriteSpansRequest--;
  return o;
}

void checkBatchWriteSpansRequest(api.BatchWriteSpansRequest o) {
  buildCounterBatchWriteSpansRequest++;
  if (buildCounterBatchWriteSpansRequest < 3) {
    checkUnnamed1(o.spans!);
  }
  buildCounterBatchWriteSpansRequest--;
}

core.int buildCounterEmpty = 0;
api.Empty buildEmpty() {
  final o = api.Empty();
  buildCounterEmpty++;
  if (buildCounterEmpty < 3) {}
  buildCounterEmpty--;
  return o;
}

void checkEmpty(api.Empty o) {
  buildCounterEmpty++;
  if (buildCounterEmpty < 3) {}
  buildCounterEmpty--;
}

core.int buildCounterLink = 0;
api.Link buildLink() {
  final o = api.Link();
  buildCounterLink++;
  if (buildCounterLink < 3) {
    o.attributes = buildAttributes();
    o.spanId = 'foo';
    o.traceId = 'foo';
    o.type = 'foo';
  }
  buildCounterLink--;
  return o;
}

void checkLink(api.Link o) {
  buildCounterLink++;
  if (buildCounterLink < 3) {
    checkAttributes(o.attributes!);
    unittest.expect(o.spanId!, unittest.equals('foo'));
    unittest.expect(o.traceId!, unittest.equals('foo'));
    unittest.expect(o.type!, unittest.equals('foo'));
  }
  buildCounterLink--;
}

core.List<api.Link> buildUnnamed2() => [buildLink(), buildLink()];

void checkUnnamed2(core.List<api.Link> o) {
  unittest.expect(o, unittest.hasLength(2));
  checkLink(o[0]);
  checkLink(o[1]);
}

core.int buildCounterLinks = 0;
api.Links buildLinks() {
  final o = api.Links();
  buildCounterLinks++;
  if (buildCounterLinks < 3) {
    o.droppedLinksCount = 42;
    o.link = buildUnnamed2();
  }
  buildCounterLinks--;
  return o;
}

void checkLinks(api.Links o) {
  buildCounterLinks++;
  if (buildCounterLinks < 3) {
    unittest.expect(o.droppedLinksCount!, unittest.equals(42));
    checkUnnamed2(o.link!);
  }
  buildCounterLinks--;
}

core.int buildCounterMessageEvent = 0;
api.MessageEvent buildMessageEvent() {
  final o = api.MessageEvent();
  buildCounterMessageEvent++;
  if (buildCounterMessageEvent < 3) {
    o.compressedSizeBytes = 'foo';
    o.id = 'foo';
    o.type = 'foo';
    o.uncompressedSizeBytes = 'foo';
  }
  buildCounterMessageEvent--;
  return o;
}

void checkMessageEvent(api.MessageEvent o) {
  buildCounterMessageEvent++;
  if (buildCounterMessageEvent < 3) {
    unittest.expect(o.compressedSizeBytes!, unittest.equals('foo'));
    unittest.expect(o.id!, unittest.equals('foo'));
    unittest.expect(o.type!, unittest.equals('foo'));
    unittest.expect(o.uncompressedSizeBytes!, unittest.equals('foo'));
  }
  buildCounterMessageEvent--;
}

core.int buildCounterModule = 0;
api.Module buildModule() {
  final o = api.Module();
  buildCounterModule++;
  if (buildCounterModule < 3) {
    o.buildId = buildTruncatableString();
    o.module = buildTruncatableString();
  }
  buildCounterModule--;
  return o;
}

void checkModule(api.Module o) {
  buildCounterModule++;
  if (buildCounterModule < 3) {
    checkTruncatableString(o.buildId!);
    checkTruncatableString(o.module!);
  }
  buildCounterModule--;
}

core.int buildCounterSpan = 0;
api.Span buildSpan() {
  final o = api.Span();
  buildCounterSpan++;
  if (buildCounterSpan < 3) {
    o.attributes = buildAttributes();
    o.childSpanCount = 42;
    o.displayName = buildTruncatableString();
    o.endTime = 'foo';
    o.links = buildLinks();
    o.name = 'foo';
    o.parentSpanId = 'foo';
    o.sameProcessAsParentSpan = true;
    o.spanId = 'foo';
    o.spanKind = 'foo';
    o.stackTrace = buildStackTrace();
    o.startTime = 'foo';
    o.status = buildStatus();
    o.timeEvents = buildTimeEvents();
  }
  buildCounterSpan--;
  return o;
}

void checkSpan(api.Span o) {
  buildCounterSpan++;
  if (buildCounterSpan < 3) {
    checkAttributes(o.attributes!);
    unittest.expect(o.childSpanCount!, unittest.equals(42));
    checkTruncatableString(o.displayName!);
    unittest.expect(o.endTime!, unittest.equals('foo'));
    checkLinks(o.links!);
    unittest.expect(o.name!, unittest.equals('foo'));
    unittest.expect(o.parentSpanId!, unittest.equals('foo'));
    unittest.expect(o.sameProcessAsParentSpan!, unittest.isTrue);
    unittest.expect(o.spanId!, unittest.equals('foo'));
    unittest.expect(o.spanKind!, unittest.equals('foo'));
    checkStackTrace(o.stackTrace!);
    unittest.expect(o.startTime!, unittest.equals('foo'));
    checkStatus(o.status!);
    checkTimeEvents(o.timeEvents!);
  }
  buildCounterSpan--;
}

core.int buildCounterStackFrame = 0;
api.StackFrame buildStackFrame() {
  final o = api.StackFrame();
  buildCounterStackFrame++;
  if (buildCounterStackFrame < 3) {
    o.columnNumber = 'foo';
    o.fileName = buildTruncatableString();
    o.functionName = buildTruncatableString();
    o.lineNumber = 'foo';
    o.loadModule = buildModule();
    o.originalFunctionName = buildTruncatableString();
    o.sourceVersion = buildTruncatableString();
  }
  buildCounterStackFrame--;
  return o;
}

void checkStackFrame(api.StackFrame o) {
  buildCounterStackFrame++;
  if (buildCounterStackFrame < 3) {
    unittest.expect(o.columnNumber!, unittest.equals('foo'));
    checkTruncatableString(o.fileName!);
    checkTruncatableString(o.functionName!);
    unittest.expect(o.lineNumber!, unittest.equals('foo'));
    checkModule(o.loadModule!);
    checkTruncatableString(o.originalFunctionName!);
    checkTruncatableString(o.sourceVersion!);
  }
  buildCounterStackFrame--;
}

core.List<api.StackFrame> buildUnnamed3() => [
  buildStackFrame(),
  buildStackFrame(),
];

void checkUnnamed3(core.List<api.StackFrame> o) {
  unittest.expect(o, unittest.hasLength(2));
  checkStackFrame(o[0]);
  checkStackFrame(o[1]);
}

core.int buildCounterStackFrames = 0;
api.StackFrames buildStackFrames() {
  final o = api.StackFrames();
  buildCounterStackFrames++;
  if (buildCounterStackFrames < 3) {
    o.droppedFramesCount = 42;
    o.frame = buildUnnamed3();
  }
  buildCounterStackFrames--;
  return o;
}

void checkStackFrames(api.StackFrames o) {
  buildCounterStackFrames++;
  if (buildCounterStackFrames < 3) {
    unittest.expect(o.droppedFramesCount!, unittest.equals(42));
    checkUnnamed3(o.frame!);
  }
  buildCounterStackFrames--;
}

core.int buildCounterStackTrace = 0;
api.StackTrace buildStackTrace() {
  final o = api.StackTrace();
  buildCounterStackTrace++;
  if (buildCounterStackTrace < 3) {
    o.stackFrames = buildStackFrames();
    o.stackTraceHashId = 'foo';
  }
  buildCounterStackTrace--;
  return o;
}

void checkStackTrace(api.StackTrace o) {
  buildCounterStackTrace++;
  if (buildCounterStackTrace < 3) {
    checkStackFrames(o.stackFrames!);
    unittest.expect(o.stackTraceHashId!, unittest.equals('foo'));
  }
  buildCounterStackTrace--;
}

core.Map<core.String, core.Object?> buildUnnamed4() => {
  'x': {
    'list': [1, 2, 3],
    'bool': true,
    'string': 'foo',
  },
  'y': {
    'list': [1, 2, 3],
    'bool': true,
    'string': 'foo',
  },
};

void checkUnnamed4(core.Map<core.String, core.Object?> o) {
  unittest.expect(o, unittest.hasLength(2));
  var casted1 = (o['x']!) as core.Map;
  unittest.expect(casted1, unittest.hasLength(3));
  unittest.expect(casted1['list'], unittest.equals([1, 2, 3]));
  unittest.expect(casted1['bool'], unittest.equals(true));
  unittest.expect(casted1['string'], unittest.equals('foo'));
  var casted2 = (o['y']!) as core.Map;
  unittest.expect(casted2, unittest.hasLength(3));
  unittest.expect(casted2['list'], unittest.equals([1, 2, 3]));
  unittest.expect(casted2['bool'], unittest.equals(true));
  unittest.expect(casted2['string'], unittest.equals('foo'));
}

core.List<core.Map<core.String, core.Object?>> buildUnnamed5() => [
  buildUnnamed4(),
  buildUnnamed4(),
];

void checkUnnamed5(core.List<core.Map<core.String, core.Object?>> o) {
  unittest.expect(o, unittest.hasLength(2));
  checkUnnamed4(o[0]);
  checkUnnamed4(o[1]);
}

core.int buildCounterStatus = 0;
api.Status buildStatus() {
  final o = api.Status();
  buildCounterStatus++;
  if (buildCounterStatus < 3) {
    o.code = 42;
    o.details = buildUnnamed5();
    o.message = 'foo';
  }
  buildCounterStatus--;
  return o;
}

void checkStatus(api.Status o) {
  buildCounterStatus++;
  if (buildCounterStatus < 3) {
    unittest.expect(o.code!, unittest.equals(42));
    checkUnnamed5(o.details!);
    unittest.expect(o.message!, unittest.equals('foo'));
  }
  buildCounterStatus--;
}

core.int buildCounterTimeEvent = 0;
api.TimeEvent buildTimeEvent() {
  final o = api.TimeEvent();
  buildCounterTimeEvent++;
  if (buildCounterTimeEvent < 3) {
    o.annotation = buildAnnotation();
    o.messageEvent = buildMessageEvent();
    o.time = 'foo';
  }
  buildCounterTimeEvent--;
  return o;
}

void checkTimeEvent(api.TimeEvent o) {
  buildCounterTimeEvent++;
  if (buildCounterTimeEvent < 3) {
    checkAnnotation(o.annotation!);
    checkMessageEvent(o.messageEvent!);
    unittest.expect(o.time!, unittest.equals('foo'));
  }
  buildCounterTimeEvent--;
}

core.List<api.TimeEvent> buildUnnamed6() => [
  buildTimeEvent(),
  buildTimeEvent(),
];

void checkUnnamed6(core.List<api.TimeEvent> o) {
  unittest.expect(o, unittest.hasLength(2));
  checkTimeEvent(o[0]);
  checkTimeEvent(o[1]);
}

core.int buildCounterTimeEvents = 0;
api.TimeEvents buildTimeEvents() {
  final o = api.TimeEvents();
  buildCounterTimeEvents++;
  if (buildCounterTimeEvents < 3) {
    o.droppedAnnotationsCount = 42;
    o.droppedMessageEventsCount = 42;
    o.timeEvent = buildUnnamed6();
  }
  buildCounterTimeEvents--;
  return o;
}

void checkTimeEvents(api.TimeEvents o) {
  buildCounterTimeEvents++;
  if (buildCounterTimeEvents < 3) {
    unittest.expect(o.droppedAnnotationsCount!, unittest.equals(42));
    unittest.expect(o.droppedMessageEventsCount!, unittest.equals(42));
    checkUnnamed6(o.timeEvent!);
  }
  buildCounterTimeEvents--;
}

core.int buildCounterTruncatableString = 0;
api.TruncatableString buildTruncatableString() {
  final o = api.TruncatableString();
  buildCounterTruncatableString++;
  if (buildCounterTruncatableString < 3) {
    o.truncatedByteCount = 42;
    o.value = 'foo';
  }
  buildCounterTruncatableString--;
  return o;
}

void checkTruncatableString(api.TruncatableString o) {
  buildCounterTruncatableString++;
  if (buildCounterTruncatableString < 3) {
    unittest.expect(o.truncatedByteCount!, unittest.equals(42));
    unittest.expect(o.value!, unittest.equals('foo'));
  }
  buildCounterTruncatableString--;
}

void main() {
  unittest.group('obj-schema-Annotation', () {
    unittest.test('to-json--from-json', () async {
      final o = buildAnnotation();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.Annotation.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkAnnotation(od);
    });
  });

  unittest.group('obj-schema-AttributeValue', () {
    unittest.test('to-json--from-json', () async {
      final o = buildAttributeValue();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.AttributeValue.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkAttributeValue(od);
    });
  });

  unittest.group('obj-schema-Attributes', () {
    unittest.test('to-json--from-json', () async {
      final o = buildAttributes();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.Attributes.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkAttributes(od);
    });
  });

  unittest.group('obj-schema-BatchWriteSpansRequest', () {
    unittest.test('to-json--from-json', () async {
      final o = buildBatchWriteSpansRequest();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.BatchWriteSpansRequest.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkBatchWriteSpansRequest(od);
    });
  });

  unittest.group('obj-schema-Empty', () {
    unittest.test('to-json--from-json', () async {
      final o = buildEmpty();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.Empty.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkEmpty(od);
    });
  });

  unittest.group('obj-schema-Link', () {
    unittest.test('to-json--from-json', () async {
      final o = buildLink();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.Link.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkLink(od);
    });
  });

  unittest.group('obj-schema-Links', () {
    unittest.test('to-json--from-json', () async {
      final o = buildLinks();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.Links.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkLinks(od);
    });
  });

  unittest.group('obj-schema-MessageEvent', () {
    unittest.test('to-json--from-json', () async {
      final o = buildMessageEvent();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.MessageEvent.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkMessageEvent(od);
    });
  });

  unittest.group('obj-schema-Module', () {
    unittest.test('to-json--from-json', () async {
      final o = buildModule();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.Module.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkModule(od);
    });
  });

  unittest.group('obj-schema-Span', () {
    unittest.test('to-json--from-json', () async {
      final o = buildSpan();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.Span.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkSpan(od);
    });
  });

  unittest.group('obj-schema-StackFrame', () {
    unittest.test('to-json--from-json', () async {
      final o = buildStackFrame();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.StackFrame.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkStackFrame(od);
    });
  });

  unittest.group('obj-schema-StackFrames', () {
    unittest.test('to-json--from-json', () async {
      final o = buildStackFrames();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.StackFrames.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkStackFrames(od);
    });
  });

  unittest.group('obj-schema-StackTrace', () {
    unittest.test('to-json--from-json', () async {
      final o = buildStackTrace();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.StackTrace.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkStackTrace(od);
    });
  });

  unittest.group('obj-schema-Status', () {
    unittest.test('to-json--from-json', () async {
      final o = buildStatus();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.Status.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkStatus(od);
    });
  });

  unittest.group('obj-schema-TimeEvent', () {
    unittest.test('to-json--from-json', () async {
      final o = buildTimeEvent();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.TimeEvent.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkTimeEvent(od);
    });
  });

  unittest.group('obj-schema-TimeEvents', () {
    unittest.test('to-json--from-json', () async {
      final o = buildTimeEvents();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.TimeEvents.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkTimeEvents(od);
    });
  });

  unittest.group('obj-schema-TruncatableString', () {
    unittest.test('to-json--from-json', () async {
      final o = buildTruncatableString();
      final oJson = convert.jsonDecode(convert.jsonEncode(o));
      final od = api.TruncatableString.fromJson(
        oJson as core.Map<core.String, core.dynamic>,
      );
      checkTruncatableString(od);
    });
  });

  unittest.group('resource-ProjectsTracesResource', () {
    unittest.test('method--batchWrite', () async {
      final mock = HttpServerMock();
      final res = api.CloudTraceApi(mock).projects.traces;
      final arg_request = buildBatchWriteSpansRequest();
      final arg_name = 'foo';
      final arg_$fields = 'foo';
      mock.register(
        unittest.expectAsync2((http.BaseRequest req, json) {
          final obj = api.BatchWriteSpansRequest.fromJson(
            json as core.Map<core.String, core.dynamic>,
          );
          checkBatchWriteSpansRequest(obj);

          final path = req.url.path;
          var pathOffset = 0;
          core.int index;
          core.String subPart;
          unittest.expect(
            path.substring(pathOffset, pathOffset + 1),
            unittest.equals('/'),
          );
          pathOffset += 1;
          unittest.expect(
            path.substring(pathOffset, pathOffset + 3),
            unittest.equals('v2/'),
          );
          pathOffset += 3;
          // NOTE: We cannot test reserved expansions due to the inability to reverse the operation;

          final query = req.url.query;
          var queryOffset = 0;
          final queryMap = <core.String, core.List<core.String>>{};
          void addQueryParam(core.String n, core.String v) =>
              queryMap.putIfAbsent(n, () => []).add(v);

          if (query.isNotEmpty) {
            for (var part in query.split('&')) {
              final keyValue = part.split('=');
              addQueryParam(
                core.Uri.decodeQueryComponent(keyValue[0]),
                core.Uri.decodeQueryComponent(keyValue[1]),
              );
            }
          }
          unittest.expect(
            queryMap['fields']!.first,
            unittest.equals(arg_$fields),
          );

          final h = {'content-type': 'application/json; charset=utf-8'};
          final resp = convert.json.encode(buildEmpty());
          return async.Future.value(stringResponse(200, h, resp));
        }),
        true,
      );
      final response = await res.batchWrite(
        arg_request,
        arg_name,
        $fields: arg_$fields,
      );
      checkEmpty(response as api.Empty);
    });
  });

  unittest.group('resource-ProjectsTracesSpansResource', () {
    unittest.test('method--createSpan', () async {
      final mock = HttpServerMock();
      final res = api.CloudTraceApi(mock).projects.traces.spans;
      final arg_request = buildSpan();
      final arg_name = 'foo';
      final arg_$fields = 'foo';
      mock.register(
        unittest.expectAsync2((http.BaseRequest req, json) {
          final obj = api.Span.fromJson(
            json as core.Map<core.String, core.dynamic>,
          );
          checkSpan(obj);

          final path = req.url.path;
          var pathOffset = 0;
          core.int index;
          core.String subPart;
          unittest.expect(
            path.substring(pathOffset, pathOffset + 1),
            unittest.equals('/'),
          );
          pathOffset += 1;
          unittest.expect(
            path.substring(pathOffset, pathOffset + 3),
            unittest.equals('v2/'),
          );
          pathOffset += 3;
          // NOTE: We cannot test reserved expansions due to the inability to reverse the operation;

          final query = req.url.query;
          var queryOffset = 0;
          final queryMap = <core.String, core.List<core.String>>{};
          void addQueryParam(core.String n, core.String v) =>
              queryMap.putIfAbsent(n, () => []).add(v);

          if (query.isNotEmpty) {
            for (var part in query.split('&')) {
              final keyValue = part.split('=');
              addQueryParam(
                core.Uri.decodeQueryComponent(keyValue[0]),
                core.Uri.decodeQueryComponent(keyValue[1]),
              );
            }
          }
          unittest.expect(
            queryMap['fields']!.first,
            unittest.equals(arg_$fields),
          );

          final h = {'content-type': 'application/json; charset=utf-8'};
          final resp = convert.json.encode(buildSpan());
          return async.Future.value(stringResponse(200, h, resp));
        }),
        true,
      );
      final response = await res.createSpan(
        arg_request,
        arg_name,
        $fields: arg_$fields,
      );
      checkSpan(response as api.Span);
    });
  });
}