Start pulling pub from its own repo.

sdk/lib/_internal/pub/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': []});
-  });
-}