Roll Observatory packages and add a roll script

packages/source_maps/test/parser_test.dart

+// Copyright (c) 2013, 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.
+
+library test.parser_test;
+
+import 'dart:convert';
+import 'package:unittest/unittest.dart';
+import 'package:source_maps/source_maps.dart';
+import 'common.dart';
+
+const Map<String, dynamic> MAP_WITH_NO_SOURCE_LOCATION = const {
+    'version': 3,
+    'sourceRoot': '',
+    'sources': const ['input.dart'],
+    'names': const [],
+    'mappings': 'A',
+    'file': 'output.dart'
+};
+
+const Map<String, dynamic> MAP_WITH_SOURCE_LOCATION = const {
+    'version': 3,
+    'sourceRoot': '',
+    'sources': const ['input.dart'],
+    'names': const [],
+    'mappings': 'AAAA',
+    'file': 'output.dart'
+};
+
+const Map<String, dynamic> MAP_WITH_SOURCE_LOCATION_AND_NAME = const {
+    'version': 3,
+    'sourceRoot': '',
+    'sources': const ['input.dart'],
+    'names': const ['var'],
+    'mappings': 'AAAAA',
+    'file': 'output.dart'
+};
+
+main() {
+  test('parse', () {
+    var mapping = parseJson(EXPECTED_MAP);
+    check(outputVar1, mapping, inputVar1, false);
+    check(outputVar2, mapping, inputVar2, false);
+    check(outputFunction, mapping, inputFunction, false);
+    check(outputExpr, mapping, inputExpr, false);
+  });
+
+  test('parse + json', () {
+    var mapping = parse(JSON.encode(EXPECTED_MAP));
+    check(outputVar1, mapping, inputVar1, false);
+    check(outputVar2, mapping, inputVar2, false);
+    check(outputFunction, mapping, inputFunction, false);
+    check(outputExpr, mapping, inputExpr, false);
+  });
+
+  test('parse with file', () {
+    var mapping = parseJson(EXPECTED_MAP);
+    check(outputVar1, mapping, inputVar1, true);
+    check(outputVar2, mapping, inputVar2, true);
+    check(outputFunction, mapping, inputFunction, true);
+    check(outputExpr, mapping, inputExpr, true);
+  });
+
+  test('parse with no source location', () {
+    SingleMapping map = parse(JSON.encode(MAP_WITH_NO_SOURCE_LOCATION));
+    expect(map.lines.length, 1);
+    expect(map.lines.first.entries.length, 1);
+    TargetEntry entry = map.lines.first.entries.first;
+
+    expect(entry.column, 0);
+    expect(entry.sourceUrlId, null);
+    expect(entry.sourceColumn, null);
+    expect(entry.sourceLine, null);
+    expect(entry.sourceNameId, null);
+  });
+
+  test('parse with source location and no name', () {
+    SingleMapping map = parse(JSON.encode(MAP_WITH_SOURCE_LOCATION));
+    expect(map.lines.length, 1);
+    expect(map.lines.first.entries.length, 1);
+    TargetEntry entry = map.lines.first.entries.first;
+
+    expect(entry.column, 0);
+    expect(entry.sourceUrlId, 0);
+    expect(entry.sourceColumn, 0);
+    expect(entry.sourceLine, 0);
+    expect(entry.sourceNameId, null);
+  });
+
+  test('parse with source location and name', () {
+    SingleMapping map = parse(JSON.encode(MAP_WITH_SOURCE_LOCATION_AND_NAME));
+    expect(map.lines.length, 1);
+    expect(map.lines.first.entries.length, 1);
+    TargetEntry entry = map.lines.first.entries.first;
+
+    expect(entry.sourceUrlId, 0);
+    expect(entry.sourceUrlId, 0);
+    expect(entry.sourceColumn, 0);
+    expect(entry.sourceLine, 0);
+    expect(entry.sourceNameId, 0);
+  });
+
+  test('parse with source root', () {
+    var inputMap = new Map.from(MAP_WITH_SOURCE_LOCATION);
+    inputMap['sourceRoot'] = '/pkg/';
+    var mapping = parseJson(inputMap);
+    expect(mapping.spanFor(0, 0).sourceUrl, Uri.parse("/pkg/input.dart"));
+
+    var newSourceRoot = '/new/';
+
+    mapping.sourceRoot = newSourceRoot;
+    inputMap["sourceRoot"] = newSourceRoot;
+
+    expect(mapping.toJson(), equals(inputMap));
+  });
+
+  test('parse with map URL', () {
+    var inputMap = new Map.from(MAP_WITH_SOURCE_LOCATION);
+    inputMap['sourceRoot'] = 'pkg/';
+    var mapping = parseJson(inputMap, mapUrl: "file:///path/to/map");
+    expect(mapping.spanFor(0, 0).sourceUrl,
+        Uri.parse("file:///path/to/pkg/input.dart"));
+  });
+
+  test('parse and re-emit', () {
+    for (var expected in [
+        EXPECTED_MAP,
+        MAP_WITH_NO_SOURCE_LOCATION,
+        MAP_WITH_SOURCE_LOCATION,
+        MAP_WITH_SOURCE_LOCATION_AND_NAME]) {
+      var mapping = parseJson(expected);
+      expect(mapping.toJson(), equals(expected));
+    }
+  });
+}