Roll Observatory packages and add a roll script

packages/package_config/test/parse_test.dart

+// Copyright (c) 2015, 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 package_config.parse_test;
+
+import "package:package_config/packages.dart";
+import "package:package_config/packages_file.dart" show parse;
+import "package:package_config/src/packages_impl.dart";
+import "package:test/test.dart";
+
+main() {
+  var base = Uri.parse("file:///one/two/three/packages.map");
+  test("empty", () {
+    var packages = doParse(emptySample, base);
+    expect(packages.asMap(), isEmpty);
+  });
+  test("comment only", () {
+    var packages = doParse(commentOnlySample, base);
+    expect(packages.asMap(), isEmpty);
+  });
+  test("empty lines only", () {
+    var packages = doParse(emptyLinesSample, base);
+    expect(packages.asMap(), isEmpty);
+  });
+
+  test("empty lines only", () {
+    var packages = doParse(emptyLinesSample, base);
+    expect(packages.asMap(), isEmpty);
+  });
+
+  test("single", () {
+    var packages = doParse(singleRelativeSample, base);
+    expect(packages.packages.toList(), equals(["foo"]));
+    expect(packages.resolve(Uri.parse("package:foo/bar/baz.dart")),
+        equals(base.resolve("../test/").resolve("bar/baz.dart")));
+  });
+
+  test("single no slash", () {
+    var packages = doParse(singleRelativeSampleNoSlash, base);
+    expect(packages.packages.toList(), equals(["foo"]));
+    expect(packages.resolve(Uri.parse("package:foo/bar/baz.dart")),
+        equals(base.resolve("../test/").resolve("bar/baz.dart")));
+  });
+
+  test("single no newline", () {
+    var packages = doParse(singleRelativeSampleNoNewline, base);
+    expect(packages.packages.toList(), equals(["foo"]));
+    expect(packages.resolve(Uri.parse("package:foo/bar/baz.dart")),
+        equals(base.resolve("../test/").resolve("bar/baz.dart")));
+  });
+
+  test("single absolute authority", () {
+    var packages = doParse(singleAbsoluteSample, base);
+    expect(packages.packages.toList(), equals(["foo"]));
+    expect(packages.resolve(Uri.parse("package:foo/bar/baz.dart")),
+        equals(Uri.parse("http://example.com/some/where/bar/baz.dart")));
+  });
+
+  test("single empty path", () {
+    var packages = doParse(singleEmptyPathSample, base);
+    expect(packages.packages.toList(), equals(["foo"]));
+    expect(packages.resolve(Uri.parse("package:foo/bar/baz.dart")),
+        equals(base.replace(path: "${base.path}/bar/baz.dart")));
+  });
+
+  test("single absolute path", () {
+    var packages = doParse(singleAbsolutePathSample, base);
+    expect(packages.packages.toList(), equals(["foo"]));
+    expect(packages.resolve(Uri.parse("package:foo/bar/baz.dart")),
+        equals(base.replace(path: "/test/bar/baz.dart")));
+  });
+
+  test("multiple", () {
+    var packages = doParse(multiRelativeSample, base);
+    expect(
+        packages.packages.toList()..sort(), equals(["bar", "foo"]));
+    expect(packages.resolve(Uri.parse("package:foo/bar/baz.dart")),
+        equals(base.resolve("../test/").resolve("bar/baz.dart")));
+    expect(packages.resolve(Uri.parse("package:bar/foo/baz.dart")),
+        equals(base.resolve("../test2/").resolve("foo/baz.dart")));
+  });
+
+  test("dot-dot 1", () {
+    var packages = doParse(singleRelativeSample, base);
+    expect(packages.packages.toList(), equals(["foo"]));
+    expect(packages.resolve(Uri.parse("package:foo/qux/../bar/baz.dart")),
+        equals(base.resolve("../test/").resolve("bar/baz.dart")));
+  });
+
+  test("all valid chars can be used in URI segment", () {
+    var packages = doParse(allValidCharsSample, base);
+    expect(packages.packages.toList(), equals([allValidChars]));
+    expect(packages.resolve(Uri.parse("package:$allValidChars/bar/baz.dart")),
+        equals(base.resolve("../test/").resolve("bar/baz.dart")));
+  });
+
+  test("no invalid chars accepted", () {
+    var map = {};
+    for (int i = 0; i < allValidChars.length; i++) {
+      map[allValidChars.codeUnitAt(i)] = true;
+    }
+    for (int i = 0; i <= 255; i++) {
+      if (map[i] == true) continue;
+      var char = new String.fromCharCode(i);
+      expect(() => doParse("x${char}x:x", null), throws);
+    }
+  });
+
+  test("no escapes", () {
+    expect(() => doParse("x%41x:x", base), throws);
+  });
+
+  test("same name twice", () {
+    expect(() => doParse(singleRelativeSample * 2, base), throws);
+  });
+
+  for (String invalidSample in invalid) {
+    test("invalid '$invalidSample'", () {
+      var result;
+      try {
+        result = doParse(invalidSample, base);
+      } on FormatException {
+        // expected
+        return;
+      }
+      fail("Resolved to $result");
+    });
+  }
+}
+
+Packages doParse(String sample, Uri baseUri) {
+  Map<String, Uri> map = parse(sample.codeUnits, baseUri);
+  return new MapPackages(map);
+}
+
+// Valid samples.
+var emptySample                   = "";
+var commentOnlySample             = "# comment only\n";
+var emptyLinesSample              = "\n\n\r\n";
+var singleRelativeSample          = "foo:../test/\n";
+var singleRelativeSampleNoSlash   = "foo:../test\n";
+var singleRelativeSampleNoNewline = "foo:../test/";
+var singleAbsoluteSample          = "foo:http://example.com/some/where/\n";
+var singleEmptyPathSample         = "foo:\n";
+var singleAbsolutePathSample      = "foo:/test/\n";
+var multiRelativeSample           = "foo:../test/\nbar:../test2/\n";
+// All valid path segment characters in an URI.
+var allValidChars =
+    r"!$&'()*+,-.0123456789;="
+    r"@ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~";
+
+var allValidCharsSample = "${allValidChars}:../test/\n";
+
+// Invalid samples.
+var invalid = [
+  ":baz.dart",  // empty.
+  "foobar=baz.dart",  // no colon (but an equals, which is not the same)
+  ".:../test/",  // dot segment
+  "..:../test/",  // dot-dot segment
+  "...:../test/",  // dot-dot-dot segment
+  "foo/bar:../test/",  // slash in name
+  "/foo:../test/",  // slash at start of name
+  "?:../test/",  // invalid characters.
+  "[:../test/",  // invalid characters.
+  "x#:../test/",  // invalid characters.
+];