Add an SDK source.

test/sdk_test.dart

+// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS d.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 d.file.
+
+import 'package:path/path.dart' as p;
+
+import 'package:scheduled_test/scheduled_test.dart';
+
+import 'package:pub/src/exit_codes.dart' as exit_codes;
+
+import 'descriptor.dart' as d;
+import 'test_pub.dart';
+
+main() {
+  forBothPubGetAndUpgrade((command) {
+    setUp(() {
+      servePackages((builder) {
+        builder.serve('bar', '1.0.0');
+      });
+
+      d.dir('flutter', [
+        d.dir('packages', [
+          d.dir('foo', [
+            d.libDir('foo', 'foo 0.0.1'),
+            d.libPubspec('foo', '0.0.1', deps: {'bar': 'any'})
+          ])
+        ])
+      ]).create();
+    });
+
+    integration("gets an SDK dependency's dependencies", () {
+      d.appDir({"foo": {"sdk": "flutter"}}).create();
+      pubCommand(command,
+          environment: {'FLUTTER_ROOT': p.join(sandboxDir, 'flutter')});
+
+      d.dir(appPath, [
+        d.packagesFile({
+          'myapp': '.',
+          'foo': p.join(sandboxDir, 'flutter', 'packages', 'foo'),
+          'bar': '1.0.0'
+        })
+      ]).validate();
+
+      d.packagesDir({'foo': '0.0.1', 'bar': '1.0.0'}).validate();
+    });
+
+    group("fails if", () {
+      integration("the version constraint doesn't match", () {
+        d.appDir({"foo": {"sdk": "flutter", "version": "^1.0.0"}}).create();
+        pubCommand(command,
+            environment: {'FLUTTER_ROOT': p.join(sandboxDir, 'flutter')},
+            error: 'Package foo has no versions that match >=1.0.0 <2.0.0 '
+                     'derived from:\n'
+                   '- myapp depends on version ^1.0.0');
+      });
+
+      integration("the SDK is unknown", () {
+        d.appDir({"foo": {"sdk": "unknown"}}).create();
+        pubCommand(command,
+            error: 'Unknown SDK "unknown".\n'
+                   'Depended on by:\n'
+                   '- myapp',
+            exitCode: exit_codes.UNAVAILABLE);
+      });
+
+      integration("the SDK is unavailable", () {
+        d.appDir({"foo": {"sdk": "flutter"}}).create();
+        pubCommand(command,
+            error: 'The Flutter SDK is not available.\n'
+                   'Depended on by:\n'
+                   '- myapp',
+            exitCode: exit_codes.UNAVAILABLE);
+      });
+ 
+      integration("the SDK doesn't contain the package", () {
+        d.appDir({"bar": {"sdk": "flutter"}}).create();
+        pubCommand(command,
+            environment: {'FLUTTER_ROOT': p.join(sandboxDir, 'flutter')},
+            error: 'Could not find package bar in the Flutter SDK.\n'
+                   'Depended on by:\n'
+                   '- myapp',
+            exitCode: exit_codes.UNAVAILABLE);
+      });
+
+      integration("the Dart SDK doesn't contain the package", () {
+        d.appDir({"bar": {"sdk": "dart"}}).create();
+        pubCommand(command,
+            error: 'Could not find package bar in the Dart SDK.\n'
+                   'Depended on by:\n'
+                   '- myapp',
+            exitCode: exit_codes.UNAVAILABLE);
+      });
+    });
+  });
+}