Revert "Fix tools/full-coverage.dart script and add standalone test."

tests/standalone/full_coverage_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.
-
-// These tests fork a second VM process that runs the script
-// ``tools/full-coverage.dart'' and verifies that the tool
-// produces the expeced output.
-
-import 'dart:async';
-import 'dart:convert';
-import 'dart:io';
-
-import 'package:path/path.dart' as path;
-import 'package:unittest/unittest.dart';
-
-final String coverageScript = "tools/full-coverage.dart";
-final String packageRoot = Platform.packageRoot;
-final String sdkRoot = path.join(path.dirname(Platform.executable), 'dart-sdk');
-final List dartBaseArgs = ['--package-root=${packageRoot}', '--checked',];
-
-// With line numbers starting at 0, the list of hits can be understood as
-// follows:
-// * -1: No coverage data on this line.
-// *  0: No hits on this line.
-// *  1: ``Some'' hits on this line.
-final coverageTests = [
-  {
-    'name': 'faculty',
-    'program': '''
-dummy () {
-  for (int i = 0; i < 100; i++) {
-    print(i);
-  }
-}
-
-int fac(int n) {
-  int f = 1;
-  for (int i = 1; i <= n; i++) {
-    f *= i;
-  }
-  return f;
-}
-
-main() {
-  if (false) {
-    dummy(11);
-  } else {
-    fac(10);
-  }
-}
-''',
-    'expectedHits': [-1, 0, 0, -1, -1, -1, -1, -1, 1, 1, -1, -1, -1, -1, -1, -1,
-                     0, -1, 1, -1, -1]
-  },{
-    'name': 'closures',
-    'program': '''
-main() {
-  foo(bar) {
-    bar();
-  }
-
-  foo(() {
-    print("in closure");
-  });
-}
-''',
-    'expectedHits': [-1, -1, 1, -1, -1, 1, 1, -1, -1]
-  }
-];
-
-
-String prepareEnv() {
-  Directory testDir = Directory.systemTemp.createTempSync("coverage-");
-  for (var coverageProg in coverageTests) {
-    var coverageProgDir = new Directory(
-        path.join(testDir.path, coverageProg["name"]))
-      ..createSync();
-    var f = new File(path.join(coverageProgDir.path,
-        "${coverageProg['name']}.dart"));
-    f.writeAsStringSync(coverageProg["program"], mode: FileMode.WRITE);
-  }
-  return testDir.path;
-}
-
-
-destroyEnv(base) => new Directory(base).deleteSync(recursive: true);
-
-
-generateCoverage(String workingDirectory) {
-  for (var coverageProg in coverageTests) {
-    var progPath = path.join(workingDirectory, coverageProg['name']);
-    var script = path.join(progPath, "${coverageProg['name']}.dart");
-    var dartArgs = new List.from(dartBaseArgs)
-      ..addAll(['--coverage-dir=${progPath}', '${script}']);
-    var result = Process.runSync(Platform.executable, dartArgs);
-    expect(result.exitCode, 0);
-  }
-}
-
-
-Future<Process> convertCoverage(String programDir, String format) {
-  var dartArgs = new List.from(dartBaseArgs)
-      ..addAll([
-        coverageScript,
-        '--package-root=${packageRoot}',
-        '--sdk-root=${sdkRoot}',
-        '--in=${programDir}',
-        format
-      ]);
-  return Process.start(Platform.executable, dartArgs);
-}
-
-
-class PrettyPrintDescriptor {
-  var _programPath;
-  var _validFormat = new RegExp(r"^\s*\d*\|.*$", multiLine: true);
-  var _pattern = new RegExp(r"^\s*(\d+)\|", multiLine: true);
-
-  PrettyPrintDescriptor(this._programPath);
-
-  get sectionStart => _programPath;
-  get sectionEnd => '/';
-  get coverageParameter => '--pretty-print';
-
-  hitData(line) {
-    expect(_validFormat.hasMatch(line), isTrue);
-    var match = _pattern.firstMatch(line);
-    var result = -1;
-    if (match != null) {
-      result = (int.parse(match.group(1)) != 0) ? 1 : 0;
-    }
-    return [result];
-  }
-}
-
-
-class LcovDescriptor {
-  var _pattern = new RegExp(r"^DA:(\d+),(\d+)$", multiLine: true);
-  var _programPath;
-  var _line_nr = 0;
-
-  LcovDescriptor(this._programPath);
-
-  get sectionStart => 'SF:${_programPath}';
-  get sectionEnd => 'end_of_record';
-  get coverageParameter => '--lcov';
-
-  hitData(line) {
-    expect(_pattern.hasMatch(line), isTrue);
-    var match = _pattern.firstMatch(line);
-    // Lcov data starts at line 1, we start at 0.
-    var out_line = int.parse(match[1]) - 1;
-    var hitCount = int.parse(match[2]);
-    var result = [];
-    for ( ; _line_nr < out_line; _line_nr++) {
-      result.add(-1);
-    }
-    result.add((hitCount != 0) ? 1 : 0);
-    _line_nr++;
-    return result;
-  }
-}
-
-
-Stream filterHitData(input, descriptor) {
-  bool in_program_section = false;
-  return input.where((line) {
-    if (in_program_section) {
-      if (line.startsWith(descriptor.sectionEnd)) {
-        in_program_section = false;
-        return false;
-      }
-      return true;
-    }
-    if (line.startsWith(descriptor.sectionStart)) {
-      in_program_section = true;
-    }
-    return false;
-  }).map((line) {
-    return descriptor.hitData(line);
-  });
-}
-
-
-testCoverage(String programDir, String programPath, descriptor,
-             List expectedHitMap) {
-  var p = convertCoverage(programDir, descriptor.coverageParameter);
-  expect(p.then((process) {
-    var hitStream = filterHitData(
-        process.stdout.transform(UTF8.decoder)
-                      .transform(const LineSplitter()),
-        descriptor);
-    var hitMap = [];
-    var subscription = hitStream.listen((data) {
-      // Flatten results.
-      data.forEach((e) => hitMap.add(e));
-    });
-    expect(subscription.asFuture().then((_) {
-      hitMap.forEach((e) {
-        expect(e, expectedHitMap.removeAt(0));
-      });
-      // Make sure that there are only lines left that do not contain coverage
-      // data.
-      expectedHitMap.forEach((e) => expect(e, -1));
-    }), completes);
-  }), completes);
-}
-
-
-main() {
-  String testingDirectory;
-
-  setUp(() {
-    testingDirectory = prepareEnv();
-  });
-
-  tearDown(() => destroyEnv(testingDirectory));
-
-  test('CoverageTests', () {
-    generateCoverage(testingDirectory);
-
-    coverageTests.forEach((cTest) {
-      String programDir = path.join(testingDirectory, cTest['name']);
-      String programPath = path.join(programDir, "${cTest['name']}.dart");
-      testCoverage(programDir, programPath,
-                   new LcovDescriptor(programPath),
-                   new List.from(cTest['expectedHits']));
-      testCoverage(programDir, programPath,
-                   new PrettyPrintDescriptor(programPath),
-                   new List.from(cTest['expectedHits']));
-    });
-  });
-}