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Add resource tests.
[email protected], [email protected] Review URL: https://codereview.chromium.org//1276263002 .
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‎pkg/package_test_data/lib/resources/sample.txt

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Sample text file.

‎pkg/package_test_data/pubspec.yaml

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name: package_test_data
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version: 0.0.1
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author: "Dart Team <[email protected]>"
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description: >
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Contains data used by platform tests using package: URIs.
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Should *not* be published.
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environment:
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sdk: ">=1.13.0"

‎tests/corelib/corelib.status

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[ $runtime == vm ]
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regexp/global_test: Skip # Timeout. Issue 21709 and 21708
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[ $runtime != vm ]
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package_resource_test: RuntimeError # Issue 23825 (not implemented yet).
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data_resource_test: RuntimeError # Issue 23825 (not implemented yet).
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http_resource_test: Skip, OK # VM specific test, uses dart:io.
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file_resource_test: Skip, OK # VM specific test, uses dart:io.
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[ $mode == debug ]
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regexp/pcre_test: Pass, Slow # Timeout. Issue 22008
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‎tests/corelib/data_resource_test.dart

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// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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const sampleText = "Sample text file.";
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main() async {
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var uriEncoded = sampleText.replaceAll(' ', '%20');
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await testUri("data:application/dart;charset=utf-8,$uriEncoded");
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// TODO: Support other data: URI formats too.
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// See: https://github.com/dart-lang/sdk/issues/24030
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// await testUri("data:text/plain;charset=utf-8,$uriEncoded");
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var base64Encoded = "U2FtcGxlIHRleHQgZmlsZS4=";
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// await testUri("data:application/dart;charset=utf-8;base64,$base64Encoded");
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// await testUri("data:text/plain;charset=utf-8;base64,$base64Encoded");
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}
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testUri(uriText) async {
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var resource = new Resource(uriText);
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if (resource.uri != Uri.parse(uriText)) {
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throw "uriText: Incorrect URI: ${resource.uri}";
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}
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var text = await resource.readAsString();
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if (text != sampleText) {
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throw "uriText: Incorrect reading of text file: $text";
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}
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var bytes = await resource.readAsBytes();
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if (!compareBytes(bytes, sampleText.codeUnits)) {
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throw "uriText: Incorrect reading of bytes: $bytes";
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}
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var streamBytes = [];
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await for (var byteSlice in resource.openRead()) {
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streamBytes.addAll(byteSlice);
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}
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if (!compareBytes(streamBytes, sampleText.codeUnits)) {
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throw "uriText: Incorrect reading of bytes: $bytes";
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}
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}
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/// Checks that [bytes] and [expectedBytes] have the same contents.
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bool compareBytes(bytes, expectedBytes) {
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if (bytes.length != expectedBytes.length) return false;
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for (int i = 0; i < expectedBytes.length; i++) {
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if (bytes[i] != expectedBytes[i]) return false;
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}
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return true;
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}

‎tests/corelib/file_resource_test.dart

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// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import "dart:io";
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const sampleText = "Sample text file.";
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main() async {
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var file = await createFile();
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var uri = new Uri.file(file.path);
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var resource = new Resource(uri.toString());
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if (resource.uri != uri) {
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throw "Incorrect URI: ${resource.uri}";
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}
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var text = await resource.readAsString();
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if (text != sampleText) {
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throw "Incorrect reading of text file: $text";
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}
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var bytes = await resource.readAsBytes();
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if (!compareBytes(bytes, sampleText.codeUnits)) {
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throw "Incorrect reading of bytes: $bytes";
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}
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var streamBytes = [];
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await for (var byteSlice in resource.openRead()) {
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streamBytes.addAll(byteSlice);
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}
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if (!compareBytes(streamBytes, sampleText.codeUnits)) {
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throw "Incorrect reading of bytes: $bytes";
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}
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await deleteFile(file);
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}
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/// Checks that [bytes] and [expectedBytes] have the same contents.
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bool compareBytes(bytes, expectedBytes) {
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if (bytes.length != expectedBytes.length) return false;
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for (int i = 0; i < expectedBytes.length; i++) {
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if (bytes[i] != expectedBytes[i]) return false;
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}
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return true;
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}
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createFile() async {
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var tempDir = await Directory.systemTemp.createTemp("sample");
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var filePath = tempDir.path + Platform.pathSeparator + "sample.txt";
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var file = new File(filePath);
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await file.create();
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await file.writeAsString(sampleText);
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return file;
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}
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deleteFile(File file) async {
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// Removes the file and the temporary directory it's in.
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var parentDir = new Directory(file.path.substring(0,
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file.path.lastIndexOf(Platform.pathSeparator)));
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await parentDir.delete(recursive: true);
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}

‎tests/corelib/http_resource_test.dart

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// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import "dart:io";
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const sampleText = "Sample text file.";
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main() async {
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var server = await startServer();
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var uriText = "http://localhost:${server.port}/sample.txt?query#fragment";
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var resource = new Resource(uriText);
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if (resource.uri != Uri.parse(uriText)) {
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throw "Incorrect URI: ${resource.uri}";
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}
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var text = await resource.readAsString();
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if (text != sampleText) {
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throw "Incorrect reading of text file: $text";
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}
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var bytes = await resource.readAsBytes();
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if (!compareBytes(bytes, sampleText.codeUnits)) {
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throw "Incorrect reading of bytes: $bytes";
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}
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var streamBytes = [];
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await for (var byteSlice in resource.openRead()) {
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streamBytes.addAll(byteSlice);
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}
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if (!compareBytes(streamBytes, sampleText.codeUnits)) {
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throw "Incorrect reading of bytes: $bytes";
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}
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await server.close();
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}
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/// Checks that [bytes] and [expectedBytes] have the same contents.
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bool compareBytes(bytes, expectedBytes) {
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if (bytes.length != expectedBytes.length) return false;
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for (int i = 0; i < expectedBytes.length; i++) {
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if (bytes[i] != expectedBytes[i]) return false;
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}
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return true;
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}
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startServer() async {
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var server = await HttpServer.bind(InternetAddress.LOOPBACK_IP_V4, 0);
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var expectedUri = new Uri(path: "/sample.txt", query: "query");
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server.forEach((request) async {
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await request.drain();
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var response = request.response;
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if (request.uri == expectedUri) {
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response.write(sampleText);
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} else {
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response.write("INCORRECT PATH!: ${request.uri}");
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}
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response.close();
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});
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return server;
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}

‎tests/corelib/package_resource_test.dart

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// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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const sampleText = "Sample text file.";
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main() async {
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const uriText = "package:package_test_data/resources/sample.txt";
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const resource = const Resource(uriText);
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if (resource.uri != Uri.parse(uriText)) {
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throw "Incorrect URI: ${resource.uri}";
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}
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var text = await resource.readAsString();
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if (!text.startsWith("Sample text file.")) {
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throw "Incorrect reading of text file: $text";
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}
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var bytes = await resource.readAsBytes();
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if (!compareBytes(bytes, sampleText.codeUnits)) {
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throw "Incorrect reading of bytes: $bytes";
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}
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var streamBytes = [];
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await for (var byteSlice in resource.openRead()) {
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streamBytes.addAll(byteSlice);
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}
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if (!compareBytes(streamBytes, sampleText.codeUnits)) {
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throw "Incorrect reading of bytes: $bytes";
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}
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if (!compareBytes(streamBytes, bytes)) {
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throw "Inconsistent reading of bytes: $bytes / $streamBytes";
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}
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}
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/// Checks that [bytes] starts with [expectedBytes].
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///
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/// The bytes may be longer (because the test file is a text file and its
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/// terminating line ending may be mangled on some platforms).
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bool compareBytes(bytes, expectedBytes) {
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if (bytes.length < expectedBytes.length) return false;
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for (int i = 0; i < expectedBytes.length; i++) {
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if (bytes[i] != expectedBytes[i]) return false;
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}
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return true;
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}

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