Use native async/await support in pub.

sdk/lib/_internal/pub_generated/test/dependency_computer/cycle_test.dart

-// Copyright (c) 2014, 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 '../descriptor.dart' as d;
-import '../test_pub.dart';
-import 'utils.dart';
-
-void main() {
-  initConfig();
-
-  integration(
-      "allows a package dependency cycle that's unrelated to " "transformers",
-      () {
-    d.dir(appPath, [d.pubspec({
-        "name": "myapp",
-        "dependencies": {
-          "foo": {
-            "path": "../foo"
-          }
-        },
-        "transformers": ["myapp/first", "myapp/second"]
-      }),
-          d.dir(
-              'lib',
-              [
-                  d.file("first.dart", transformer()),
-                  d.file("second.dart", transformer())])]).create();
-
-    d.dir("foo", [d.libPubspec("foo", "1.0.0", deps: {
-        "bar": {
-          "path": "../bar"
-        }
-      })]).create();
-
-    d.dir("bar", [d.libPubspec("bar", "1.0.0", deps: {
-        "baz": {
-          "path": "../baz"
-        }
-      })]).create();
-
-    d.dir("baz", [d.libPubspec("baz", "1.0.0", deps: {
-        "foo": {
-          "path": "../foo"
-        }
-      })]).create();
-
-    expectDependencies({
-      'myapp/first': [],
-      'myapp/second': ['myapp/first']
-    });
-  });
-
-  integration(
-      "disallows a package dependency cycle that may be related to " "transformers",
-      () {
-    // Two layers of myapp transformers are necessary here because otherwise pub
-    // will figure out that the transformer doesn't import "foo" and thus
-    // doesn't transitively import itself. Import loops are tested below.
-    d.dir(appPath, [d.pubspec({
-        "name": "myapp",
-        "dependencies": {
-          "foo": {
-            "path": "../foo"
-          }
-        },
-        "transformers": ["myapp/first", "myapp/second"]
-      }),
-          d.dir(
-              'lib',
-              [
-                  d.file("first.dart", transformer()),
-                  d.file("second.dart", transformer())])]).create();
-
-    d.dir("foo", [d.libPubspec("foo", "1.0.0", deps: {
-        "bar": {
-          "path": "../bar"
-        }
-      })]).create();
-
-    d.dir("bar", [d.libPubspec("bar", "1.0.0", deps: {
-        "myapp": {
-          "path": "../myapp"
-        }
-      })]).create();
-
-    expectCycleException(
-        [
-            "myapp is transformed by myapp/second",
-            "myapp depends on foo",
-            "foo depends on bar",
-            "bar depends on myapp",
-            "myapp is transformed by myapp/first"]);
-  });
-
-  integration("disallows a transformation dependency cycle", () {
-    d.dir(appPath, [d.pubspec({
-        "name": "myapp",
-        "dependencies": {
-          "foo": {
-            "path": "../foo"
-          }
-        },
-        "transformers": ["foo"]
-      }), d.dir('lib', [d.file("myapp.dart", transformer())])]).create();
-
-    d.dir("foo", [d.pubspec({
-        "name": "foo",
-        "dependencies": {
-          "bar": {
-            "path": "../bar"
-          }
-        },
-        "transformers": ["bar"]
-      }), d.dir('lib', [d.file("foo.dart", transformer())])]).create();
-
-    d.dir("bar", [d.pubspec({
-        "name": "bar",
-        "dependencies": {
-          "myapp": {
-            "path": "../myapp"
-          }
-        },
-        "transformers": ["myapp"]
-      }), d.dir('lib', [d.file("bar.dart", transformer())])]).create();
-
-    expectCycleException(
-        [
-            "bar is transformed by myapp",
-            "myapp is transformed by foo",
-            "foo is transformed by bar"]);
-  });
-
-  integration(
-      "allows a cross-package import cycle that's unrelated to " "transformers",
-      () {
-    d.dir(appPath, [d.pubspec({
-        "name": "myapp",
-        "dependencies": {
-          "foo": {
-            "path": "../foo"
-          }
-        },
-        "transformers": ["myapp"]
-      }),
-          d.dir(
-              'lib',
-              [d.file("myapp.dart", transformer(['package:foo/foo.dart']))])]).create();
-
-    d.dir("foo", [d.libPubspec("foo", "1.0.0", deps: {
-        "bar": {
-          "path": "../bar"
-        }
-      }),
-          d.dir('lib', [d.file("foo.dart", "import 'package:bar/bar.dart';")])]).create();
-
-    d.dir("bar", [d.libPubspec("bar", "1.0.0", deps: {
-        "baz": {
-          "path": "../baz"
-        }
-      }),
-          d.dir('lib', [d.file("bar.dart", "import 'package:baz/baz.dart';")])]).create();
-
-    d.dir("baz", [d.libPubspec("baz", "1.0.0", deps: {
-        "foo": {
-          "path": "../foo"
-        }
-      }),
-          d.dir('lib', [d.file("baz.dart", "import 'package:foo/foo.dart';")])]).create();
-
-    expectDependencies({
-      'myapp': []
-    });
-  });
-
-  integration(
-      "disallows a cross-package import cycle that's related to " "transformers",
-      () {
-    d.dir(appPath, [d.pubspec({
-        "name": "myapp",
-        "dependencies": {
-          "foo": {
-            "path": "../foo"
-          }
-        },
-        "transformers": ["myapp"]
-      }),
-          d.dir(
-              'lib',
-              [d.file("myapp.dart", transformer(['package:foo/foo.dart']))])]).create();
-
-    d.dir("foo", [d.libPubspec("foo", "1.0.0", deps: {
-        "bar": {
-          "path": "../bar"
-        }
-      }),
-          d.dir('lib', [d.file("foo.dart", "import 'package:bar/bar.dart';")])]).create();
-
-    d.dir("bar", [d.libPubspec("bar", "1.0.0", deps: {
-        "myapp": {
-          "path": "../myapp"
-        }
-      }),
-          d.dir(
-              'lib',
-              [d.file("bar.dart", "import 'package:myapp/myapp.dart';")])]).create();
-
-    expectCycleException(
-        [
-            "myapp is transformed by myapp",
-            "myapp depends on foo",
-            "foo depends on bar",
-            "bar depends on myapp"]);
-  });
-
-  integration(
-      "allows a single-package import cycle that's unrelated to " "transformers",
-      () {
-    d.dir(appPath, [d.pubspec({
-        "name": "myapp",
-        "dependencies": {
-          "foo": {
-            "path": "../foo"
-          }
-        },
-        "transformers": ["myapp"]
-      }),
-          d.dir(
-              'lib',
-              [
-                  d.file("myapp.dart", transformer(['foo.dart'])),
-                  d.file("foo.dart", "import 'bar.dart';"),
-                  d.file("bar.dart", "import 'baz.dart';"),
-                  d.file("baz.dart", "import 'foo.dart';")])]).create();
-
-    expectDependencies({
-      'myapp': []
-    });
-  });
-
-  integration(
-      "allows a single-package import cycle that's related to " "transformers",
-      () {
-    d.dir(appPath, [d.pubspec({
-        "name": "myapp",
-        "dependencies": {
-          "foo": {
-            "path": "../foo"
-          }
-        },
-        "transformers": ["myapp"]
-      }),
-          d.dir(
-              'lib',
-              [
-                  d.file("myapp.dart", transformer(['foo.dart'])),
-                  d.file("foo.dart", "import 'bar.dart';"),
-                  d.file("bar.dart", "import 'myapp.dart';"),])]).create();
-
-    expectDependencies({
-      'myapp': []
-    });
-  });
-}