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264
test/printer_test.dart
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264
test/printer_test.dart
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import 'package:flutter_test/flutter_test.dart';
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import 'package:printer/printer.dart';
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import 'package:printer/printer_platform_interface.dart';
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import 'package:printer/printer_method_channel.dart';
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import 'package:printer/enums/multi_byte_encoding.dart';
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import 'package:printer/enums/printer_alignment.dart';
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import 'package:printer/enums/serial_flow_control.dart';
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import 'package:printer/enums/serial_parity.dart';
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import 'package:printer/enums/serial_stop_bits.dart';
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import 'package:plugin_platform_interface/plugin_platform_interface.dart';
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class MockPrinterPlatform
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with MockPlatformInterfaceMixin
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implements PrinterPlatform {
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@override
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Future<String?> getPlatformVersion() => Future.value('42');
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@override
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Future<int> openComPort({
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required String portName,
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required int baudRate,
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int dataBits = 8,
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SerialParity parity = SerialParity.none,
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SerialStopBits stopBits = SerialStopBits.one,
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SerialFlowControl flowControl = SerialFlowControl.none,
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bool autoReplyMode = true,
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}) => Future.value(1);
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@override
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Future<int> openUsbPort({
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required String portName,
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bool autoReplyMode = true,
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}) => Future.value(2);
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@override
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Future<bool> closePort(int handle) => Future.value(true);
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@override
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Future<bool> isPortOpened(int handle) => Future.value(true);
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@override
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Future<List<String>> enumComPorts() => Future.value(['/dev/ttyS0']);
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@override
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Future<List<String>> enumUsbPorts() => Future.value(['USB_Printer_0']);
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@override
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Future<bool> setMultiByteMode(int handle) => Future.value(true);
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@override
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Future<bool> setMultiByteEncoding(int handle, MultiByteEncoding encoding) => Future.value(true);
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@override
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Future<bool> printText(int handle, String text) => Future.value(true);
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@override
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Future<bool> setAlignment(int handle, PrinterAlignment alignment) => Future.value(true);
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@override
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Future<bool> setTextScale(int handle, {required int widthScale, required int heightScale}) => Future.value(true);
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@override
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Future<bool> setTextBold(int handle, bool bold) => Future.value(true);
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@override
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Future<bool> setTextUnderline(int handle, int underline) => Future.value(true);
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@override
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Future<bool> feedLine(int handle, int numLines) => Future.value(true);
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@override
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Future<bool> feedDot(int handle, int numDots) => Future.value(true);
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@override
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Future<bool> halfCutPaper(int handle) => Future.value(true);
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@override
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Future<bool> fullCutPaper(int handle) => Future.value(true);
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}
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void main() {
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final PrinterPlatform initialPlatform = PrinterPlatform.instance;
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test('$MethodChannelPrinter is the default instance', () {
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expect(initialPlatform, isInstanceOf<MethodChannelPrinter>());
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});
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test('getPlatformVersion', () async {
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Printer printerPlugin = Printer();
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MockPrinterPlatform fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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expect(await printerPlugin.getPlatformVersion(), '42');
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});
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test('openComPort delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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final handle = await printer.openComPort(
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portName: '/dev/ttyS0',
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baudRate: 115200,
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);
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expect(handle, 1);
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});
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test('openUsbPort delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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final handle = await printer.openUsbPort(portName: 'USB_Printer_0');
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expect(handle, 2);
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});
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test('closePort delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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final result = await printer.closePort(1);
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expect(result, true);
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});
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test('isPortOpened delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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final result = await printer.isPortOpened(1);
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expect(result, true);
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});
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test('enumComPorts delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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final ports = await printer.enumComPorts();
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expect(ports, ['/dev/ttyS0']);
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});
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test('enumUsbPorts delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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final ports = await printer.enumUsbPorts();
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expect(ports, ['USB_Printer_0']);
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});
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test('openComPortWithHandle returns valid PrinterPortHandle', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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final portHandle = await printer.openComPortWithHandle(
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portName: '/dev/ttyS0',
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baudRate: 115200,
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);
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expect(portHandle.handle, 1);
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expect(portHandle.isValid, true);
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await portHandle.close();
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expect(portHandle.isValid, false);
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});
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test('openUsbPortWithHandle returns valid PrinterPortHandle', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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final portHandle = await printer.openUsbPortWithHandle(
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portName: 'USB_Printer_0',
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);
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expect(portHandle.handle, 2);
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expect(portHandle.isValid, true);
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});
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test('setMultiByteMode delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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expect(await printer.setMultiByteMode(1), true);
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});
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test('setMultiByteEncoding delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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expect(await printer.setMultiByteEncoding(1, MultiByteEncoding.utf8), true);
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});
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test('printText delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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expect(await printer.printText(1, 'Hello 中文'), true);
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});
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test('setAlignment delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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expect(await printer.setAlignment(1, PrinterAlignment.center), true);
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});
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test('setTextScale delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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expect(await printer.setTextScale(1, widthScale: 2, heightScale: 2), true);
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});
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test('setTextBold delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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expect(await printer.setTextBold(1, true), true);
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});
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test('setTextUnderline delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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expect(await printer.setTextUnderline(1, 1), true);
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});
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test('feedLine delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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expect(await printer.feedLine(1, 5), true);
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});
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test('feedDot delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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expect(await printer.feedDot(1, 100), true);
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});
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test('halfCutPaper delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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expect(await printer.halfCutPaper(1), true);
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});
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test('fullCutPaper delegates to platform interface', () async {
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final printer = Printer();
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final fakePlatform = MockPrinterPlatform();
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PrinterPlatform.instance = fakePlatform;
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expect(await printer.fullCutPaper(1), true);
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});
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}
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