blob: 81ab6c9561365f0b6b871c559e9fbe451df0a420 [file] [log] [blame]
// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
import 'dart:io';
import 'package:analyzer/src/kernel/loader.dart';
import 'package:kernel/application_root.dart';
import 'package:kernel/kernel.dart';
import 'package:kernel/target/targets.dart';
import 'package:kernel/text/ast_to_text.dart';
import 'package:kernel/verifier.dart';
import 'package:path/path.dart' as pathlib;
import 'package:test/test.dart';
final String testcaseDirectory = 'pkg/kernel/testcases';
final String inputDirectory = 'pkg/kernel/testcases/input';
final String sdkDirectory = 'sdk';
/// A target to be used for testing.
/// To simplify testing dependencies, we avoid transformations that rely on
/// a patched SDK or any SDK changes that have not landed in the main SDK.
abstract class TestTarget extends Target {
/// Annotations to apply on the textual output.
Annotator get annotator => null;
// Return a list of strings so that we can accumulate errors.
List<String> performModularTransformations(Program program);
List<String> performGlobalTransformations(Program program);
void runBaselineTests(String folderName, TestTarget target) {
String outputDirectory = '$testcaseDirectory/$folderName';
var batch = new DartLoaderBatch();
Directory directory = new Directory(inputDirectory);
var applicationRoot = new ApplicationRoot(directory.absolute.path);
for (FileSystemEntity file in directory.listSync()) {
if (file is File && file.path.endsWith('.dart')) {
String name = pathlib.basename(file.path);
test(name, () async {
Uri dartPath =
new Uri(scheme: 'file', path: pathlib.absolute(file.path));
String shortName = pathlib.withoutExtension(name);
String filenameOfBaseline = '$outputDirectory/$shortName.baseline.txt';
String filenameOfCurrent = '$outputDirectory/$shortName.current.txt';
var program = new Program();
var loader = await batch.getLoader(
new DartOptions(
strongMode: target.strongMode,
sdk: sdkDirectory,
declaredVariables: target.extraDeclaredVariables,
applicationRoot: applicationRoot));
loader.loadProgram(dartPath, target: target);
var errors = <String>[];
var buffer = new StringBuffer();
for (var error in errors) {
buffer.writeln('// $error');
new Printer(buffer, annotator: target.annotator)
String current = '$buffer';
new File(filenameOfCurrent).writeAsStringSync(current);
var baselineFile = new File(filenameOfBaseline);
if (!baselineFile.existsSync()) {
new File(filenameOfBaseline).writeAsStringSync(current);
} else {
var baseline = baselineFile.readAsStringSync();
if (baseline != current) {
fail('Output of `$name` changed for $folderName.\n'
'Command to reset the baseline:\n'
' rm $filenameOfBaseline\n'
'Command to see the diff:\n'
' diff -cd $outputDirectory/$shortName.{baseline,current}.txt'