Joshua Litt
20faaa5d94
Change-Id: Ib18f554c1076f27a3f7c0df5a36410da41a1f467 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/148784 Reviewed-by: Paul Berry <paulberry@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com>
115 lines
2.8 KiB
Dart
115 lines
2.8 KiB
Dart
// 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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// @dart = 2.7
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// Unittest for the [LocationCollector].
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import 'package:compiler/src/io/code_output.dart';
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import 'package:compiler/src/io/location_provider.dart';
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import 'package:expect/expect.dart';
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import 'package:kernel/ast.dart' show Location;
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import '../helpers/output_collector.dart';
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test(List events, Map<int, List<int>> expectedPositions) {
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BufferedOutputSink sink = new BufferedOutputSink();
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LocationCollector locationProvider = new LocationCollector();
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CodeOutput output =
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new StreamCodeOutput(sink, <CodeOutputListener>[locationProvider]);
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for (var event in events) {
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if (event is String) {
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output.add(event);
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} else if (event is CodeBuffer) {
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output.addBuffer(event);
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}
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}
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output.close();
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expectedPositions.forEach((int offset, List<int> expectedPosition) {
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if (expectedPosition == null) {
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Expect.throws(
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() => locationProvider.getLocation(offset),
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(e) => true,
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'Expected out-of-bounds offset: $offset\n'
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'text:"""${sink.text}"""\n'
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'locationProvider:$locationProvider');
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} else {
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Location location = locationProvider.getLocation(offset);
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int line = location.line - 1;
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int column = location.column - 1;
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Expect.equals(
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expectedPosition[0],
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line,
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'Unexpected result: $offset -> $expectedPosition = [$line,$column]\n'
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'text:"""${sink.text}"""\n'
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'locationProvider:$locationProvider');
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Expect.equals(
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expectedPosition[1],
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column,
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'Unexpected result: $offset -> $expectedPosition = [$line,$column]\n'
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'text:"""${sink.text}"""\n'
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'locationProvider:$locationProvider');
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}
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});
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}
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main() {
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test([
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""
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], {
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0: [0, 0],
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1: null
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});
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test([
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" "
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], {
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0: [0, 0],
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1: [0, 1],
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2: null
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});
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test([
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"\n "
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], {
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0: [0, 0],
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1: [1, 0],
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2: [1, 1],
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3: null
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});
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Map<int, List<int>> positions = {
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0: [0, 0],
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1: [0, 1],
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2: [1, 0],
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3: [1, 1],
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4: [2, 0],
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5: [2, 1],
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6: null
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};
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test(["a\nb\nc"], positions);
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test(["a", "\nb\nc"], positions);
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test(["a", "\n", "b\nc"], positions);
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CodeBuffer buffer1 = new CodeBuffer();
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buffer1.add("a\nb\nc");
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test([buffer1], positions);
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CodeBuffer buffer2 = new CodeBuffer();
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buffer2.add("\nb\nc");
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test(["a", buffer2], positions);
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CodeBuffer buffer3 = new CodeBuffer();
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buffer3.add("a");
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test([buffer3, buffer2], positions);
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CodeBuffer buffer4 = new CodeBuffer();
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buffer4.addBuffer(buffer3);
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test([buffer4, buffer2], positions);
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}
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