pkg/analyzer2dart/test/sexpr_test.dart

// Copyright (c) 2014, 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.

/// Unittest test of the CPS ir generated by the analyzer2dart compiler.

import 'mock_sdk.dart';
import 'package:analyzer/file_system/memory_file_system.dart';
import 'package:analyzer/src/generated/element.dart';
import 'package:analyzer/src/generated/sdk.dart';
import 'package:analyzer/src/generated/source.dart';
import 'package:compiler/src/cps_ir/cps_ir_nodes_sexpr.dart';
import 'package:compiler/src/elements/elements.dart' as dart2js;
import 'package:unittest/unittest.dart';

import '../lib/src/closed_world.dart';
import '../lib/src/driver.dart';
import '../lib/src/converted_world.dart';
import 'output_helper.dart';
import 'test_helper.dart';
import 'sexpr_data.dart';

main() {
  performTests(TEST_DATA, unittester, checkResult);
}

checkResult(TestSpec result) {
  if (result.skipInAnalyzerFrontend) return;
  String input = result.input.trim();
  CollectingOutputProvider outputProvider = new CollectingOutputProvider();
  MemoryResourceProvider provider = new MemoryResourceProvider();
  DartSdk sdk = new MockSdk();
  Driver driver = new Driver(provider, sdk, outputProvider);
  String rootFile = '/root.dart';
  provider.newFile(rootFile, input);
  Source rootSource = driver.setRoot(rootFile);
  FunctionElement entryPoint = driver.resolveEntryPoint(rootSource);
  ClosedWorld world = driver.computeWorld(entryPoint);
  ConvertedWorld convertedWorld = convertWorld(world);

  void checkOutput(dart2js.Element element, String expectedOutput) {
    expectedOutput = expectedOutput.trim();
    String output = convertedWorld.getIr(element)
        .accept(new SExpressionStringifier());
    expect(output, equals(expectedOutput),
        reason: 'Input:\n$input\n'
                'Expected:\n$expectedOutput\n'
                'Actual:\n$output');
  }

  if (result.output is String) {
    checkOutput(convertedWorld.mainFunction, result.output);
  } else {
    assert(result.output is Map<String, String>);
    dart2js.LibraryElement mainLibrary = convertedWorld.mainFunction.library;
    result.output.forEach((String elementName, String output) {
      convertedWorld.resolvedElements.forEach((dart2js.Element element) {
        if (element.name == elementName &&
            element.library == mainLibrary) {
          checkOutput(element, output);
        }
      });
    });
  }
}