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debug_test.dart
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import 'package:petitparser/debug.dart';
import 'package:petitparser/petitparser.dart' hide anyOf;
import 'package:test/test.dart';
import 'utils/matchers.dart';
final identifier = letter() & word().star();
final labeledIdentifier =
letter().labeled('first') & word().star().labeled('remaining');
void main() {
group('profile', () {
test('success', () {
final frames = <ProfileFrame>[];
final parser = profile(identifier, output: frames.add);
expect(parser.parse('ab123') is Success, isTrue);
expect(
frames,
orderedEquals([
isProfileFrame(parser: isParserShallowEqual(identifier), count: 1),
isProfileFrame(
parser: isParserShallowEqual(identifier.children[0]), count: 1),
isProfileFrame(
parser: isParserShallowEqual(identifier.children[1]), count: 1),
isProfileFrame(
parser:
isParserShallowEqual(identifier.children[1].children[0]),
count: 5),
]));
});
test('labeled', () {
final frames = <ProfileFrame>[];
final parser = profile(labeledIdentifier,
output: frames.add, predicate: (parser) => parser is LabeledParser);
expect(parser.parse('ab123') is Success, isTrue);
expect(
frames,
orderedEquals([
isProfileFrame(
parser: isParserShallowEqual(labeledIdentifier.children[0]),
toString: contains('first'),
count: 1),
isProfileFrame(
parser: isParserShallowEqual(labeledIdentifier.children[1]),
toString: contains('remaining'),
count: 1),
]));
});
test('failure', () {
final frames = <ProfileFrame>[];
final parser = profile(identifier, output: frames.add);
expect(parser.parse('1') is Failure, isTrue);
expect(
frames,
orderedEquals([
isProfileFrame(parser: isParserShallowEqual(identifier), count: 1),
isProfileFrame(
parser: isParserShallowEqual(identifier.children[0]), count: 1),
isProfileFrame(
parser: isParserShallowEqual(identifier.children[1])),
isProfileFrame(
parser:
isParserShallowEqual(identifier.children[1].children[0])),
]));
});
});
group('progress', () {
test('success', () {
final frames = <ProgressFrame>[];
final parser = progress(identifier, output: frames.add);
expect(parser.parse('ab123') is Success, isTrue);
expect(frames, [
isProgressFrame(
parser: isParserShallowEqual(identifier),
position: 0,
toString: startsWith('* ')),
isProgressFrame(
parser: isParserShallowEqual(identifier.children[0]),
position: 0,
toString: startsWith('* ')),
isProgressFrame(
parser: isParserShallowEqual(identifier.children[1]),
position: 1,
toString: startsWith('** ')),
isProgressFrame(
parser: isParserShallowEqual(identifier.children[1].children[0]),
position: 1,
toString: startsWith('** ')),
isProgressFrame(
parser: isParserShallowEqual(identifier.children[1].children[0]),
position: 2,
toString: startsWith('*** ')),
isProgressFrame(
parser: isParserShallowEqual(identifier.children[1].children[0]),
position: 3,
toString: startsWith('**** ')),
isProgressFrame(
parser: isParserShallowEqual(identifier.children[1].children[0]),
position: 4,
toString: startsWith('***** ')),
isProgressFrame(
parser: isParserShallowEqual(identifier.children[1].children[0]),
position: 5,
toString: startsWith('****** ')),
]);
});
test('labeled', () {
final frames = <ProgressFrame>[];
final parser = progress(labeledIdentifier,
output: frames.add, predicate: (parser) => parser is LabeledParser);
expect(parser.parse('ab123') is Success, isTrue);
expect(frames, [
isProgressFrame(
parser: isParserShallowEqual(labeledIdentifier.children[0]),
toString: allOf(startsWith('* '), contains('first')),
position: 0),
isProgressFrame(
parser: isParserShallowEqual(labeledIdentifier.children[1]),
toString: allOf(startsWith('** '), contains('remaining')),
position: 1),
]);
});
test('failure', () {
final frames = <ProgressFrame>[];
final parser = progress(identifier, output: frames.add);
expect(parser.parse('1') is Failure, isTrue);
expect(frames, [
isProgressFrame(
parser: isParserShallowEqual(identifier),
position: 0,
toString: startsWith('* ')),
isProgressFrame(
parser: isParserShallowEqual(identifier.children[0]),
position: 0,
toString: startsWith('* ')),
]);
});
});
group('trace', () {
test('success', () {
final events = <TraceEvent>[];
final parser = trace(identifier, output: events.add);
expect(parser.parse('a') is Success, isTrue);
expect(events, [
isTraceEvent(
parser: isParserShallowEqual(identifier), result: isNull, level: 0),
isTraceEvent(
parser: isParserShallowEqual(identifier.children[0]),
result: isNull,
level: 1),
isTraceEvent(
parser: isParserShallowEqual(identifier.children[0]),
result: isSuccess(value: 'a'),
level: 1),
isTraceEvent(
parser: isParserShallowEqual(identifier.children[1]),
result: isNull,
level: 1),
isTraceEvent(
parser: isParserShallowEqual(identifier.children[1].children[0]),
result: isNull,
level: 2),
isTraceEvent(
parser: isParserShallowEqual(identifier.children[1].children[0]),
result: isFailure(message: 'letter or digit expected'),
level: 2),
isTraceEvent(
parser: isParserShallowEqual(identifier.children[1]),
result: isSuccess(value: isEmpty),
level: 1),
isTraceEvent(
parser: isParserShallowEqual(identifier),
result: isSuccess(),
level: 0),
]);
});
test('labeled', () {
final events = <TraceEvent>[];
final parser = trace(labeledIdentifier,
output: events.add, predicate: (parser) => parser is LabeledParser);
expect(parser.parse('ab123') is Success, isTrue);
expect(events, [
isTraceEvent(
parser: isParserShallowEqual(labeledIdentifier.children[0]),
result: isNull,
level: 0),
isTraceEvent(
parser: isParserShallowEqual(labeledIdentifier.children[0]),
result: isSuccess(value: 'a'),
level: 0),
isTraceEvent(
parser: isParserShallowEqual(labeledIdentifier.children[1]),
result: isNull,
level: 0),
isTraceEvent(
parser: isParserShallowEqual(labeledIdentifier.children[1]),
result: isSuccess(value: 'b123'.split('')),
level: 0),
]);
});
test('failure', () {
final events = <TraceEvent>[];
final parser = trace(identifier, output: events.add);
expect(parser.parse('1') is Failure, isTrue);
expect(events, [
isTraceEvent(
parser: isParserShallowEqual(identifier), result: isNull, level: 0),
isTraceEvent(
parser: isParserShallowEqual(identifier.children[0]),
result: isNull,
level: 1),
isTraceEvent(
parser: isParserShallowEqual(identifier.children[0]),
result: isFailure(message: 'letter expected'),
level: 1),
isTraceEvent(
parser: isParserShallowEqual(identifier),
result: isFailure(message: 'letter expected'),
level: 0),
]);
});
});
}