import 'dart:convert'; import 'package:decimal/decimal.dart'; import 'package:flutter_test/flutter_test.dart'; import 'package:http/http.dart'; import 'package:mockito/annotations.dart'; import 'package:mockito/mockito.dart'; import 'package:stackwallet/models/exchange/change_now/available_floating_rate_pair.dart'; import 'package:stackwallet/models/exchange/change_now/change_now_response.dart'; import 'package:stackwallet/models/exchange/change_now/estimated_exchange_amount.dart'; import 'package:stackwallet/models/exchange/change_now/exchange_transaction.dart'; import 'package:stackwallet/models/exchange/change_now/exchange_transaction_status.dart'; import 'package:stackwallet/services/change_now/change_now.dart'; import 'change_now_sample_data.dart'; import 'change_now_test.mocks.dart'; @GenerateMocks([Client]) void main() { group("getAvailableCurrencies", () { test("getAvailableCurrencies succeeds without options", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse("https://api.ChangeNow.instance.io/v1/currencies"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response(jsonEncode(availableCurrenciesJSON), 200)); final result = await ChangeNow.instance.getAvailableCurrencies(); expect(result.exception, null); expect(result.value == null, false); expect(result.value!.length, 538); }); test("getAvailableCurrencies succeeds with active option", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/currencies?active=true"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response(jsonEncode(availableCurrenciesJSONActive), 200)); final result = await ChangeNow.instance.getAvailableCurrencies(active: true); expect(result.exception, null); expect(result.value == null, false); expect(result.value!.length, 531); }); test("getAvailableCurrencies succeeds with fixedRate option", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/currencies?fixedRate=true"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response(jsonEncode(availableCurrenciesJSONFixedRate), 200)); final result = await ChangeNow.instance.getAvailableCurrencies(fixedRate: true); expect(result.exception, null); expect(result.value == null, false); expect(result.value!.length, 410); }); test("getAvailableCurrencies succeeds with fixedRate and active options", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/currencies?fixedRate=true&active=true"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response(jsonEncode(availableCurrenciesJSONActiveFixedRate), 200)); final result = await ChangeNow.instance .getAvailableCurrencies(active: true, fixedRate: true); expect(result.exception, null); expect(result.value == null, false); expect(result.value!.length, 410); }); test( "getAvailableCurrencies fails with ChangeNowExceptionType.serializeResponseError", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse("https://api.ChangeNow.instance.io/v1/currencies"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response('{"some unexpected": "but valid json data"}', 200)); final result = await ChangeNow.instance.getAvailableCurrencies(); expect(result.exception!.type, ChangeNowExceptionType.serializeResponseError); expect(result.value == null, true); }); test("getAvailableCurrencies fails for any other reason", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse("https://api.ChangeNow.instance.io/v1/currencies"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response("", 400)); final result = await ChangeNow.instance.getAvailableCurrencies(); expect(result.exception!.type, ChangeNowExceptionType.generic); expect(result.value == null, true); }); }); group("getPairedCurrencies", () { test("getPairedCurrencies succeeds without fixedRate option", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse("https://api.ChangeNow.instance.io/v1/currencies-to/XMR"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response(jsonEncode(getPairedCurrenciesJSON), 200)); final result = await ChangeNow.instance.getPairedCurrencies(ticker: "XMR"); expect(result.exception, null); expect(result.value == null, false); expect(result.value!.length, 537); }); test("getPairedCurrencies succeeds with fixedRate option", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/currencies-to/XMR?fixedRate=true"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response(jsonEncode(getPairedCurrenciesJSONFixedRate), 200)); final result = await ChangeNow.instance .getPairedCurrencies(ticker: "XMR", fixedRate: true); expect(result.exception, null); expect(result.value == null, false); expect(result.value!.length, 410); }); test( "getPairedCurrencies fails with ChangeNowExceptionType.serializeResponseError A", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse("https://api.ChangeNow.instance.io/v1/currencies-to/XMR"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response('[{"some unexpected": "but valid json data"}]', 200)); final result = await ChangeNow.instance.getPairedCurrencies(ticker: "XMR"); expect(result.exception!.type, ChangeNowExceptionType.serializeResponseError); expect(result.value == null, true); }); test("getPairedCurrencies fails for any other reason", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse("https://api.ChangeNow.instance.io/v1/currencies"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response("", 400)); final result = await ChangeNow.instance .getPairedCurrencies(ticker: "XMR", fixedRate: true); expect(result.exception!.type, ChangeNowExceptionType.generic); expect(result.value == null, true); }); }); group("getMinimalExchangeAmount", () { test("getMinimalExchangeAmount succeeds", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/min-amount/xmr_btc?api_key=testAPIKEY"), headers: {'Content-Type': 'application/json'}, )).thenAnswer( (realInvocation) async => Response('{"minAmount": 42}', 200)); final result = await ChangeNow.instance.getMinimalExchangeAmount( fromTicker: "xmr", toTicker: "btc", apiKey: "testAPIKEY", ); expect(result.exception, null); expect(result.value == null, false); expect(result.value, Decimal.fromInt(42)); }); test( "getMinimalExchangeAmount fails with ChangeNowExceptionType.serializeResponseError", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/min-amount/xmr_btc?api_key=testAPIKEY"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response('{"error": 42}', 200)); final result = await ChangeNow.instance.getMinimalExchangeAmount( fromTicker: "xmr", toTicker: "btc", apiKey: "testAPIKEY", ); expect(result.exception!.type, ChangeNowExceptionType.serializeResponseError); expect(result.value == null, true); }); test("getMinimalExchangeAmount fails for any other reason", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/min-amount/xmr_btc?api_key=testAPIKEY"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response('', 400)); final result = await ChangeNow.instance.getMinimalExchangeAmount( fromTicker: "xmr", toTicker: "btc", apiKey: "testAPIKEY", ); expect(result.exception!.type, ChangeNowExceptionType.generic); expect(result.value == null, true); }); }); group("getEstimatedExchangeAmount", () { test("getEstimatedExchangeAmount succeeds", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/exchange-amount/42/xmr_btc?api_key=testAPIKEY"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response( '{"estimatedAmount": 58.4142873, "transactionSpeedForecast": "10-60", "warningMessage": null}', 200)); final result = await ChangeNow.instance.getEstimatedExchangeAmount( fromTicker: "xmr", toTicker: "btc", fromAmount: Decimal.fromInt(42), apiKey: "testAPIKEY", ); expect(result.exception, null); expect(result.value == null, false); expect(result.value, isA()); }); test( "getEstimatedExchangeAmount fails with ChangeNowExceptionType.serializeResponseError", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/exchange-amount/42/xmr_btc?api_key=testAPIKEY"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response('{"error": 42}', 200)); final result = await ChangeNow.instance.getEstimatedExchangeAmount( fromTicker: "xmr", toTicker: "btc", fromAmount: Decimal.fromInt(42), apiKey: "testAPIKEY", ); expect(result.exception!.type, ChangeNowExceptionType.serializeResponseError); expect(result.value == null, true); }); test("getEstimatedExchangeAmount fails for any other reason", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/exchange-amount/42/xmr_btc?api_key=testAPIKEY"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response('', 400)); final result = await ChangeNow.instance.getEstimatedExchangeAmount( fromTicker: "xmr", toTicker: "btc", fromAmount: Decimal.fromInt(42), apiKey: "testAPIKEY", ); expect(result.exception!.type, ChangeNowExceptionType.generic); expect(result.value == null, true); }); }); group("getEstimatedFixedRateExchangeAmount", () { test("getEstimatedFixedRateExchangeAmount succeeds", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/exchange-amount/fixed-rate/10/xmr_btc?api_key=testAPIKEY&useRateId=true"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response(jsonEncode(estFixedRateExchangeAmountJSON), 200)); final result = await ChangeNow.instance.getEstimatedFixedRateExchangeAmount( fromTicker: "xmr", toTicker: "btc", fromAmount: Decimal.fromInt(10), apiKey: "testAPIKEY", ); expect(result.exception, null); expect(result.value == null, false); expect(result.value.toString(), 'EstimatedExchangeAmount: {estimatedAmount: 0.07271053, transactionSpeedForecast: 10-60, warningMessage: null, rateId: 1t2W5KBPqhycSJVYpaNZzYWLfMr0kSFe, networkFee: 0.00002408}'); }); test( "getEstimatedFixedRateExchangeAmount fails with ChangeNowExceptionType.serializeResponseError", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/exchange-amount/fixed-rate/10/xmr_btc?api_key=testAPIKEY&useRateId=true"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response('{"error": 42}', 200)); final result = await ChangeNow.instance.getEstimatedFixedRateExchangeAmount( fromTicker: "xmr", toTicker: "btc", fromAmount: Decimal.fromInt(10), apiKey: "testAPIKEY", ); expect(result.exception!.type, ChangeNowExceptionType.serializeResponseError); expect(result.value == null, true); }); test("getEstimatedFixedRateExchangeAmount fails for any other reason", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/exchange-amount/fixed-rate/10/xmr_btc?api_key=testAPIKEY&useRateId=true"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response('', 400)); final result = await ChangeNow.instance.getEstimatedFixedRateExchangeAmount( fromTicker: "xmr", toTicker: "btc", fromAmount: Decimal.fromInt(10), apiKey: "testAPIKEY", ); expect(result.exception!.type, ChangeNowExceptionType.generic); expect(result.value == null, true); }); }); group("getAvailableFixedRateMarkets", () { test("getAvailableFixedRateMarkets succeeds", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/market-info/fixed-rate/testAPIKEY"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response(jsonEncode(fixedRateMarketsJSON), 200)); final result = await ChangeNow.instance.getAvailableFixedRateMarkets( apiKey: "testAPIKEY", ); expect(result.exception, null); expect(result.value == null, false); expect(result.value!.length, 237); }); test( "getAvailableFixedRateMarkets fails with ChangeNowExceptionType.serializeResponseError", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/market-info/fixed-rate/testAPIKEY"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response('{"error": 42}', 200)); final result = await ChangeNow.instance.getAvailableFixedRateMarkets( apiKey: "testAPIKEY", ); expect(result.exception!.type, ChangeNowExceptionType.serializeResponseError); expect(result.value == null, true); }); test("getAvailableFixedRateMarkets fails for any other reason", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/market-info/fixed-rate/testAPIKEY"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response('', 400)); final result = await ChangeNow.instance.getAvailableFixedRateMarkets( apiKey: "testAPIKEY", ); expect(result.exception!.type, ChangeNowExceptionType.generic); expect(result.value == null, true); }); }); group("createStandardExchangeTransaction", () { test("createStandardExchangeTransaction succeeds", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.post( Uri.parse( "https://api.ChangeNow.instance.io/v1/transactions/testAPIKEY"), headers: {'Content-Type': 'application/json'}, body: '{"from":"xmr","to":"btc","address":"bc1qu58svs9983e2vuyqh7gq7ratf8k5qehz5k0cn5","amount":"0.3","flow":"standard","extraId":"","userId":"","contactEmail":"","refundAddress":"888tNkZrPN6JsEgekjMnABU4TBzc2Dt29EPAvkRxbANsAnjyPbb3iQ1YBRk1UXcdRsiKc9dhwMVgN5S9cQUiyoogDavup3H","refundExtraId":""}', encoding: null, )).thenAnswer((realInvocation) async => Response(jsonEncode(createStandardTransactionResponse), 200)); final result = await ChangeNow.instance.createStandardExchangeTransaction( fromTicker: "xmr", toTicker: "btc", receivingAddress: "bc1qu58svs9983e2vuyqh7gq7ratf8k5qehz5k0cn5", amount: Decimal.parse("0.3"), refundAddress: "888tNkZrPN6JsEgekjMnABU4TBzc2Dt29EPAvkRxbANsAnjyPbb3iQ1YBRk1UXcdRsiKc9dhwMVgN5S9cQUiyoogDavup3H", apiKey: "testAPIKEY", ); expect(result.exception, null); expect(result.value == null, false); expect(result.value, isA()); }); test( "createStandardExchangeTransaction fails with ChangeNowExceptionType.serializeResponseError", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.post( Uri.parse( "https://api.ChangeNow.instance.io/v1/transactions/testAPIKEY"), headers: {'Content-Type': 'application/json'}, body: '{"from":"xmr","to":"btc","address":"bc1qu58svs9983e2vuyqh7gq7ratf8k5qehz5k0cn5","amount":"0.3","flow":"standard","extraId":"","userId":"","contactEmail":"","refundAddress":"888tNkZrPN6JsEgekjMnABU4TBzc2Dt29EPAvkRxbANsAnjyPbb3iQ1YBRk1UXcdRsiKc9dhwMVgN5S9cQUiyoogDavup3H","refundExtraId":""}', encoding: null, )).thenAnswer((realInvocation) async => Response('{"error": 42}', 200)); final result = await ChangeNow.instance.createStandardExchangeTransaction( fromTicker: "xmr", toTicker: "btc", receivingAddress: "bc1qu58svs9983e2vuyqh7gq7ratf8k5qehz5k0cn5", amount: Decimal.parse("0.3"), refundAddress: "888tNkZrPN6JsEgekjMnABU4TBzc2Dt29EPAvkRxbANsAnjyPbb3iQ1YBRk1UXcdRsiKc9dhwMVgN5S9cQUiyoogDavup3H", apiKey: "testAPIKEY", ); expect(result.exception!.type, ChangeNowExceptionType.serializeResponseError); expect(result.value == null, true); }); test("createStandardExchangeTransaction fails for any other reason", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.post( Uri.parse( "https://api.ChangeNow.instance.io/v1/transactions/testAPIKEY"), headers: {'Content-Type': 'application/json'}, body: '{"from":"xmr","to":"btc","address":"bc1qu58svs9983e2vuyqh7gq7ratf8k5qehz5k0cn5","amount":"0.3","flow":"standard","extraId":"","userId":"","contactEmail":"","refundAddress":"888tNkZrPN6JsEgekjMnABU4TBzc2Dt29EPAvkRxbANsAnjyPbb3iQ1YBRk1UXcdRsiKc9dhwMVgN5S9cQUiyoogDavup3H","refundExtraId":""}', encoding: null, )).thenAnswer((realInvocation) async => Response('', 400)); final result = await ChangeNow.instance.createStandardExchangeTransaction( fromTicker: "xmr", toTicker: "btc", receivingAddress: "bc1qu58svs9983e2vuyqh7gq7ratf8k5qehz5k0cn5", amount: Decimal.parse("0.3"), refundAddress: "888tNkZrPN6JsEgekjMnABU4TBzc2Dt29EPAvkRxbANsAnjyPbb3iQ1YBRk1UXcdRsiKc9dhwMVgN5S9cQUiyoogDavup3H", apiKey: "testAPIKEY", ); expect(result.exception!.type, ChangeNowExceptionType.generic); expect(result.value == null, true); }); }); group("createFixedRateExchangeTransaction", () { test("createFixedRateExchangeTransaction succeeds", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.post( Uri.parse( "https://api.ChangeNow.instance.io/v1/transactions/fixed-rate/testAPIKEY"), headers: {'Content-Type': 'application/json'}, body: '{"from":"btc","to":"eth","address":"0x57f31ad4b64095347F87eDB1675566DAfF5EC886","amount":"0.3","flow":"fixed-rate","extraId":"","userId":"","contactEmail":"","refundAddress":"","refundExtraId":"","rateId":""}', encoding: null, )).thenAnswer((realInvocation) async => Response( '{"payinAddress": "33eFX2jfeWbXMSmRe9ewUUTrmSVSxZi5cj", "payoutAddress": "0x57f31ad4b64095347F87eDB1675566DAfF5EC886","payoutExtraId": "", "fromCurrency": "btc", "toCurrency": "eth", "refundAddress": "","refundExtraId": "","validUntil": "2019-09-09T14:01:04.921Z","id": "a5c73e2603f40d","amount": 62.9737711}', 200)); final result = await ChangeNow.instance.createFixedRateExchangeTransaction( fromTicker: "btc", toTicker: "eth", receivingAddress: "0x57f31ad4b64095347F87eDB1675566DAfF5EC886", amount: Decimal.parse("0.3"), refundAddress: "", apiKey: "testAPIKEY", rateId: '', ); expect(result.exception, null); expect(result.value == null, false); expect(result.value, isA()); }); test( "createFixedRateExchangeTransaction fails with ChangeNowExceptionType.serializeResponseError", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.post( Uri.parse( "https://api.ChangeNow.instance.io/v1/transactions/fixed-rate/testAPIKEY"), headers: {'Content-Type': 'application/json'}, body: '{"from":"btc","to":"eth","address":"0x57f31ad4b64095347F87eDB1675566DAfF5EC886","amount":"0.3","flow":"fixed-rate","extraId":"","userId":"","contactEmail":"","refundAddress":"","refundExtraId":"","rateId":""}', encoding: null, )).thenAnswer((realInvocation) async => Response('{"id": "a5c73e2603f40d","amount": 62.9737711}', 200)); final result = await ChangeNow.instance.createFixedRateExchangeTransaction( fromTicker: "btc", toTicker: "eth", receivingAddress: "0x57f31ad4b64095347F87eDB1675566DAfF5EC886", amount: Decimal.parse("0.3"), refundAddress: "", apiKey: "testAPIKEY", rateId: '', ); expect(result.exception!.type, ChangeNowExceptionType.serializeResponseError); expect(result.value == null, true); }); test("createFixedRateExchangeTransaction fails for any other reason", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.post( Uri.parse( "https://api.ChangeNow.instance.io/v1/transactions/fixed-rate/testAPIKEY"), headers: {'Content-Type': 'application/json'}, body: '{"from": "btc","to": "eth","address": "0x57f31ad4b64095347F87eDB1675566DAfF5EC886", "amount": "1.12345","extraId": "", "userId": "","contactEmail": "","refundAddress": "", "refundExtraId": "", "rateId": "" }', encoding: null, )).thenAnswer((realInvocation) async => Response('', 400)); final result = await ChangeNow.instance.createFixedRateExchangeTransaction( fromTicker: "xmr", toTicker: "btc", receivingAddress: "bc1qu58svs9983e2vuyqh7gq7ratf8k5qehz5k0cn5", amount: Decimal.parse("0.3"), refundAddress: "888tNkZrPN6JsEgekjMnABU4TBzc2Dt29EPAvkRxbANsAnjyPbb3iQ1YBRk1UXcdRsiKc9dhwMVgN5S9cQUiyoogDavup3H", apiKey: "testAPIKEY", rateId: '', ); expect(result.exception!.type, ChangeNowExceptionType.generic); expect(result.value == null, true); }); }); group("getTransactionStatus", () { test("getTransactionStatus succeeds", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/transactions/47F87eDB1675566DAfF5EC886/testAPIKEY"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response( '{"status": "waiting", "payinAddress": "32Ge2ci26rj1sRGw2NjiQa9L7Xvxtgzhrj", "payoutAddress": "0x57f31ad4b64095347F87eDB1675566DAfF5EC886", "fromCurrency": "btc", "toCurrency": "eth", "id": "50727663e5d9a4", "updatedAt": "2019-08-22T14:47:49.943Z", "expectedSendAmount": 1, "expectedReceiveAmount": 52.31667, "createdAt": "2019-08-22T14:47:49.943Z", "isPartner": false}', 200)); final result = await ChangeNow.instance.getTransactionStatus( id: "47F87eDB1675566DAfF5EC886", apiKey: "testAPIKEY", ); expect(result.exception, null); expect(result.value == null, false); expect(result.value, isA()); }); test( "getTransactionStatus fails with ChangeNowExceptionType.serializeResponseError", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/transactions/47F87eDB1675566DAfF5EC886/testAPIKEY"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response('{"error": 42}', 200)); final result = await ChangeNow.instance.getTransactionStatus( id: "47F87eDB1675566DAfF5EC886", apiKey: "testAPIKEY", ); expect(result.exception!.type, ChangeNowExceptionType.serializeResponseError); expect(result.value == null, true); }); test("getTransactionStatus fails for any other reason", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/transactions/47F87eDB1675566DAfF5EC886/testAPIKEY"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response('', 400)); final result = await ChangeNow.instance.getTransactionStatus( id: "47F87eDB1675566DAfF5EC886", apiKey: "testAPIKEY", ); expect(result.exception!.type, ChangeNowExceptionType.generic); expect(result.value == null, true); }); }); group("getAvailableFloatingRatePairs", () { test("getAvailableFloatingRatePairs succeeds", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/market-info/available-pairs?includePartners=false"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response('["btc_xmr","btc_firo","btc_doge","eth_ltc"]', 200)); final result = await ChangeNow.instance.getAvailableFloatingRatePairs(); expect(result.exception, null); expect(result.value == null, false); expect(result.value, isA>()); }); test( "getAvailableFloatingRatePairs fails with ChangeNowExceptionType.serializeResponseError", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/market-info/available-pairs?includePartners=false"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response('{"error": 42}', 200)); final result = await ChangeNow.instance.getAvailableFloatingRatePairs(); expect(result.exception!.type, ChangeNowExceptionType.serializeResponseError); expect(result.value == null, true); }); test("getAvailableFloatingRatePairs fails for any other reason", () async { final client = MockClient(); ChangeNow.instance.client = client; when(client.get( Uri.parse( "https://api.ChangeNow.instance.io/v1/market-info/available-pairs?includePartners=false"), headers: {'Content-Type': 'application/json'}, )).thenAnswer((realInvocation) async => Response('', 400)); final result = await ChangeNow.instance.getAvailableFloatingRatePairs(); expect(result.exception!.type, ChangeNowExceptionType.generic); expect(result.value == null, true); }); }); }