Revert "Use native async/await support in pub."

sdk/lib/_internal/pub_generated/test/pub_get_and_upgrade_test.dart

Index: sdk/lib/_internal/pub_generated/test/pub_get_and_upgrade_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/pub_get_and_upgrade_test.dart b/sdk/lib/_internal/pub_generated/test/pub_get_and_upgrade_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..c4ff0e9c77ce53d8c3f59d5054251de7f837919e
--- /dev/null
+++ b/sdk/lib/_internal/pub_generated/test/pub_get_and_upgrade_test.dart
@@ -0,0 +1,155 @@
+// Copyright (c) 2012, 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 pub_tests;
+
+import 'package:scheduled_test/scheduled_test.dart';
+
+import '../lib/src/exit_codes.dart' as exit_codes;
+import 'descriptor.dart' as d;
+import 'test_pub.dart';
+
+main() {
+  initConfig();
+
+  forBothPubGetAndUpgrade((command) {
+    group('requires', () {
+      integration('a pubspec', () {
+        d.dir(appPath, []).create();
+
+        pubCommand(
+            command,
+            error: new RegExp(
+                r'Could not find a file named "pubspec.yaml" ' r'in "[^\n]*"\.'));
+      });
+
+      integration('a pubspec with a "name" key', () {
+        d.dir(appPath, [d.pubspec({
+            "dependencies": {
+              "foo": null
+            }
+          })]).create();
+
+        pubCommand(
+            command,
+            error: contains('Missing the required "name" field.'),
+            exitCode: exit_codes.DATA);
+      });
+    });
+
+    integration('adds itself to the packages', () {
+      // The symlink should use the name in the pubspec, not the name of the
+      // directory.
+      d.dir(appPath, [d.pubspec({
+          "name": "myapp_name"
+        }), d.libDir('myapp_name')]).create();
+
+      pubCommand(command);
+
+      d.dir(
+          packagesPath,
+          [
+              d.dir(
+                  "myapp_name",
+                  [d.file('myapp_name.dart', 'main() => "myapp_name";')])]).validate();
+    });
+
+    integration(
+        'does not adds itself to the packages if it has no "lib" ' 'directory',
+        () {
+      // The symlink should use the name in the pubspec, not the name of the
+      // directory.
+      d.dir(appPath, [d.pubspec({
+          "name": "myapp_name"
+        }),]).create();
+
+      pubCommand(command);
+
+      d.dir(packagesPath, [d.nothing("myapp_name")]).validate();
+    });
+
+    integration(
+        'does not add a package if it does not have a "lib" ' 'directory',
+        () {
+      // Using a path source, but this should be true of all sources.
+      d.dir('foo', [d.libPubspec('foo', '0.0.0-not.used')]).create();
+
+      d.dir(appPath, [d.appPubspec({
+          "foo": {
+            "path": "../foo"
+          }
+        })]).create();
+
+      pubCommand(command);
+
+      d.packagesDir({
+        "foo": null
+      }).validate();
+    });
+
+    integration('reports a solver failure', () {
+      // myapp depends on foo and bar which both depend on baz with mismatched
+      // descriptions.
+      d.dir('deps', [d.dir('foo', [d.pubspec({
+            "name": "foo",
+            "dependencies": {
+              "baz": {
+                "path": "../baz1"
+              }
+            }
+          })]), d.dir('bar', [d.pubspec({
+            "name": "bar",
+            "dependencies": {
+              "baz": {
+                "path": "../baz2"
+              }
+            }
+          })]),
+              d.dir('baz1', [d.libPubspec('baz', '0.0.0')]),
+              d.dir('baz2', [d.libPubspec('baz', '0.0.0')])]).create();
+
+      d.dir(appPath, [d.appPubspec({
+          "foo": {
+            "path": "../deps/foo"
+          },
+          "bar": {
+            "path": "../deps/bar"
+          }
+        })]).create();
+
+      pubCommand(
+          command,
+          error: new RegExp("^Incompatible dependencies on baz:\n"));
+    });
+
+    integration('does not allow a dependency on itself', () {
+      d.dir(appPath, [d.appPubspec({
+          "myapp": {
+            "path": "."
+          }
+        })]).create();
+
+      pubCommand(
+          command,
+          error: contains('A package may not list itself as a dependency.'),
+          exitCode: exit_codes.DATA);
+    });
+
+    integration('does not allow a dev dependency on itself', () {
+      d.dir(appPath, [d.pubspec({
+          "name": "myapp",
+          "dev_dependencies": {
+            "myapp": {
+              "path": "."
+            }
+          }
+        })]).create();
+
+      pubCommand(
+          command,
+          error: contains('A package may not list itself as a dependency.'),
+          exitCode: exit_codes.DATA);
+    });
+  });
+}