Add Resource package.

test/resolve_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.
+
+import 'package:resource/resource.dart';
+import 'package:test/test.dart';
+
+main() {
+  pkguri(path) => new Uri(scheme: "package", path: path);
+
+  group("root resolver", () {
+    var resolver =
+        new PackageResolver.fromRoot(Uri.parse("file:///path/root/"));
+    resolve(string) => resolver.resolve(pkguri(string));
+
+    test("resolve invalid package: URIs", () {
+      expect(() => resolve("/nopkgname"), throws);
+      expect(() => resolve("nopkgpath"), throws);
+      expect(() => resolve("//auth/x/y"), throws);
+      expect(() => resolve("x/y?query"), throws);
+      expect(() => resolve("x/y#fragment"), throws);
+    });
+    test("resolve package: URIs", () {
+      expect(resolve("foo/bar/baz"),
+             Uri.parse("file:///path/root/foo/bar/baz"));
+      expect(resolve("foo/"),
+             Uri.parse("file:///path/root/foo/"));
+    });
+    test("resolve non-pkgUri", () {
+      unchanged(string) {
+        var uri = Uri.parse(string);
+        expect(resolver.resolve(uri), uri);
+      }       unchanged("file://localhost/something?x#y");
+      unchanged("http://auth/something?x#y");
+      unchanged("https://auth/something?x#y");
+      unchanged("unknown:/something");
+    });
+  });
+
+  group("map resolver", () {
+    var fooRoot = Uri.parse("file:///files/foo/");
+    var barRoot = Uri.parse("http://example.com/files/bar/");
+    var resolver =
+        new PackageResolver.fromMap({"foo": fooRoot, "bar": barRoot });
+    resolve(string) => resolver.resolve(pkguri(string));
+
+    test("resolve invalid package: URIs", () {
+      expect(() => resolve("/nopkgname"), throws);
+      expect(() => resolve("nopkgpath"), throws);
+      expect(() => resolve("//auth/x/y"), throws);
+      expect(() => resolve("x/y?query"), throws);
+      expect(() => resolve("x/y#fragment"), throws);
+    });
+    test("resolve existing package: URIs", () {
+      expect(resolve("foo/foo1/foo.dart"), fooRoot.resolve("foo1/foo.dart"));
+      expect(resolve("bar/bar1/bar.dart"), barRoot.resolve("bar1/bar.dart"));
+    });
+    test("resolve non-existing package: URIs", () {
+      expect(resolve("baz/baz1/baz.dart"), isNull);
+    });
+    test("resolve non-pkgUri", () {
+      unchanged(string) {
+        var uri = Uri.parse(string);
+        expect(resolver.resolve(uri), uri);
+      }       unchanged("file://localhost/something?x#y");
+      unchanged("http://auth/something?x#y");
+      unchanged("https://auth/something?x#y");
+      unchanged("unknown:/something");
+    });
+  });
+
+  group("default resolver", () async {
+    var resolver = await PackageResolver.current;
+    expect(resolver.resolve("resource/resource.dart"), isNotNull);
+  });
+}