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Unified Diff: sdk/lib/_internal/pub/test/version_solver_test.dart

Issue 1165473002: Start pulling pub from its own repo. (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: Code review changes Created 5 years, 7 months ago
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Index: sdk/lib/_internal/pub/test/version_solver_test.dart
diff --git a/sdk/lib/_internal/pub/test/version_solver_test.dart b/sdk/lib/_internal/pub/test/version_solver_test.dart
deleted file mode 100644
index d025ed7fd7e5250eb61beaa205321f1662d2cb93..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/pub/test/version_solver_test.dart
+++ /dev/null
@@ -1,1542 +0,0 @@
-// 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_upgrade_test;
-
-import 'dart:async';
-
-import 'package:pub_semver/pub_semver.dart';
-import 'package:unittest/unittest.dart';
-
-import '../lib/src/lock_file.dart';
-import '../lib/src/log.dart' as log;
-import '../lib/src/package.dart';
-import '../lib/src/pubspec.dart';
-import '../lib/src/sdk.dart' as sdk;
-import '../lib/src/source/cached.dart';
-import '../lib/src/system_cache.dart';
-import '../lib/src/utils.dart';
-import '../lib/src/solver/version_solver.dart';
-import 'test_pub.dart';
-
-MockSource source1;
-MockSource source2;
-
-main() {
- initConfig();
-
- // Uncomment this to debug failing tests.
- // log.verbosity = log.Verbosity.SOLVER;
-
- // Since this test isn't run from the SDK, it can't find the "version" file
- // to load. Instead, just manually inject a version.
- sdk.version = new Version(1, 2, 3);
-
- group('basic graph', basicGraph);
- group('with lockfile', withLockFile);
- group('root dependency', rootDependency);
- group('dev dependency', devDependency);
- group('unsolvable', unsolvable);
- group('bad source', badSource);
- group('backtracking', backtracking);
- group('SDK constraint', sdkConstraint);
- group('pre-release', prerelease);
- group('override', override);
- group('downgrade', downgrade);
-}
-
-void basicGraph() {
- testResolve('no dependencies', {
- 'myapp 0.0.0': {}
- }, result: {
- 'myapp from root': '0.0.0'
- });
-
- testResolve('simple dependency tree', {
- 'myapp 0.0.0': {
- 'a': '1.0.0',
- 'b': '1.0.0'
- },
- 'a 1.0.0': {
- 'aa': '1.0.0',
- 'ab': '1.0.0'
- },
- 'aa 1.0.0': {},
- 'ab 1.0.0': {},
- 'b 1.0.0': {
- 'ba': '1.0.0',
- 'bb': '1.0.0'
- },
- 'ba 1.0.0': {},
- 'bb 1.0.0': {}
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '1.0.0',
- 'aa': '1.0.0',
- 'ab': '1.0.0',
- 'b': '1.0.0',
- 'ba': '1.0.0',
- 'bb': '1.0.0'
- });
-
- testResolve('shared dependency with overlapping constraints', {
- 'myapp 0.0.0': {
- 'a': '1.0.0',
- 'b': '1.0.0'
- },
- 'a 1.0.0': {
- 'shared': '>=2.0.0 <4.0.0'
- },
- 'b 1.0.0': {
- 'shared': '>=3.0.0 <5.0.0'
- },
- 'shared 2.0.0': {},
- 'shared 3.0.0': {},
- 'shared 3.6.9': {},
- 'shared 4.0.0': {},
- 'shared 5.0.0': {},
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '1.0.0',
- 'b': '1.0.0',
- 'shared': '3.6.9'
- });
-
- testResolve('shared dependency where dependent version in turn affects '
- 'other dependencies', {
- 'myapp 0.0.0': {
- 'foo': '<=1.0.2',
- 'bar': '1.0.0'
- },
- 'foo 1.0.0': {},
- 'foo 1.0.1': { 'bang': '1.0.0' },
- 'foo 1.0.2': { 'whoop': '1.0.0' },
- 'foo 1.0.3': { 'zoop': '1.0.0' },
- 'bar 1.0.0': { 'foo': '<=1.0.1' },
- 'bang 1.0.0': {},
- 'whoop 1.0.0': {},
- 'zoop 1.0.0': {}
- }, result: {
- 'myapp from root': '0.0.0',
- 'foo': '1.0.1',
- 'bar': '1.0.0',
- 'bang': '1.0.0'
- }, maxTries: 2);
-
- testResolve('circular dependency', {
- 'myapp 1.0.0': {
- 'foo': '1.0.0'
- },
- 'foo 1.0.0': {
- 'bar': '1.0.0'
- },
- 'bar 1.0.0': {
- 'foo': '1.0.0'
- }
- }, result: {
- 'myapp from root': '1.0.0',
- 'foo': '1.0.0',
- 'bar': '1.0.0'
- });
-
- testResolve('removed dependency', {
- 'myapp 1.0.0': {
- 'foo': '1.0.0',
- 'bar': 'any'
- },
- 'foo 1.0.0': {},
- 'foo 2.0.0': {},
- 'bar 1.0.0': {},
- 'bar 2.0.0': {
- 'baz': '1.0.0'
- },
- 'baz 1.0.0': {
- 'foo': '2.0.0'
- }
- }, result: {
- 'myapp from root': '1.0.0',
- 'foo': '1.0.0',
- 'bar': '1.0.0'
- }, maxTries: 2);
-}
-
-withLockFile() {
- testResolve('with compatible locked dependency', {
- 'myapp 0.0.0': {
- 'foo': 'any'
- },
- 'foo 1.0.0': { 'bar': '1.0.0' },
- 'foo 1.0.1': { 'bar': '1.0.1' },
- 'foo 1.0.2': { 'bar': '1.0.2' },
- 'bar 1.0.0': {},
- 'bar 1.0.1': {},
- 'bar 1.0.2': {}
- }, lockfile: {
- 'foo': '1.0.1'
- }, result: {
- 'myapp from root': '0.0.0',
- 'foo': '1.0.1',
- 'bar': '1.0.1'
- });
-
- testResolve('with incompatible locked dependency', {
- 'myapp 0.0.0': {
- 'foo': '>1.0.1'
- },
- 'foo 1.0.0': { 'bar': '1.0.0' },
- 'foo 1.0.1': { 'bar': '1.0.1' },
- 'foo 1.0.2': { 'bar': '1.0.2' },
- 'bar 1.0.0': {},
- 'bar 1.0.1': {},
- 'bar 1.0.2': {}
- }, lockfile: {
- 'foo': '1.0.1'
- }, result: {
- 'myapp from root': '0.0.0',
- 'foo': '1.0.2',
- 'bar': '1.0.2'
- });
-
- testResolve('with unrelated locked dependency', {
- 'myapp 0.0.0': {
- 'foo': 'any'
- },
- 'foo 1.0.0': { 'bar': '1.0.0' },
- 'foo 1.0.1': { 'bar': '1.0.1' },
- 'foo 1.0.2': { 'bar': '1.0.2' },
- 'bar 1.0.0': {},
- 'bar 1.0.1': {},
- 'bar 1.0.2': {},
- 'baz 1.0.0': {}
- }, lockfile: {
- 'baz': '1.0.0'
- }, result: {
- 'myapp from root': '0.0.0',
- 'foo': '1.0.2',
- 'bar': '1.0.2'
- });
-
- testResolve('unlocks dependencies if necessary to ensure that a new '
- 'dependency is satisfied', {
- 'myapp 0.0.0': {
- 'foo': 'any',
- 'newdep': 'any'
- },
- 'foo 1.0.0': { 'bar': '<2.0.0' },
- 'bar 1.0.0': { 'baz': '<2.0.0' },
- 'baz 1.0.0': { 'qux': '<2.0.0' },
- 'qux 1.0.0': {},
- 'foo 2.0.0': { 'bar': '<3.0.0' },
- 'bar 2.0.0': { 'baz': '<3.0.0' },
- 'baz 2.0.0': { 'qux': '<3.0.0' },
- 'qux 2.0.0': {},
- 'newdep 2.0.0': { 'baz': '>=1.5.0' }
- }, lockfile: {
- 'foo': '1.0.0',
- 'bar': '1.0.0',
- 'baz': '1.0.0',
- 'qux': '1.0.0'
- }, result: {
- 'myapp from root': '0.0.0',
- 'foo': '2.0.0',
- 'bar': '2.0.0',
- 'baz': '2.0.0',
- 'qux': '1.0.0',
- 'newdep': '2.0.0'
- }, maxTries: 4);
-}
-
-rootDependency() {
- testResolve('with root source', {
- 'myapp 1.0.0': {
- 'foo': '1.0.0'
- },
- 'foo 1.0.0': {
- 'myapp from root': '>=1.0.0'
- }
- }, result: {
- 'myapp from root': '1.0.0',
- 'foo': '1.0.0'
- });
-
- testResolve('with different source', {
- 'myapp 1.0.0': {
- 'foo': '1.0.0'
- },
- 'foo 1.0.0': {
- 'myapp': '>=1.0.0'
- }
- }, result: {
- 'myapp from root': '1.0.0',
- 'foo': '1.0.0'
- });
-
- testResolve('with mismatched sources', {
- 'myapp 1.0.0': {
- 'foo': '1.0.0',
- 'bar': '1.0.0'
- },
- 'foo 1.0.0': {
- 'myapp': '>=1.0.0'
- },
- 'bar 1.0.0': {
- 'myapp from mock2': '>=1.0.0'
- }
- }, error: sourceMismatch('myapp', 'foo', 'bar'));
-
- testResolve('with wrong version', {
- 'myapp 1.0.0': {
- 'foo': '1.0.0'
- },
- 'foo 1.0.0': {
- 'myapp': '<1.0.0'
- }
- }, error: couldNotSolve);
-}
-
-devDependency() {
- testResolve("includes root package's dev dependencies", {
- 'myapp 1.0.0': {
- '(dev) foo': '1.0.0',
- '(dev) bar': '1.0.0'
- },
- 'foo 1.0.0': {},
- 'bar 1.0.0': {}
- }, result: {
- 'myapp from root': '1.0.0',
- 'foo': '1.0.0',
- 'bar': '1.0.0'
- });
-
- testResolve("includes dev dependency's transitive dependencies", {
- 'myapp 1.0.0': {
- '(dev) foo': '1.0.0'
- },
- 'foo 1.0.0': {
- 'bar': '1.0.0'
- },
- 'bar 1.0.0': {}
- }, result: {
- 'myapp from root': '1.0.0',
- 'foo': '1.0.0',
- 'bar': '1.0.0'
- });
-
- testResolve("ignores transitive dependency's dev dependencies", {
- 'myapp 1.0.0': {
- 'foo': '1.0.0'
- },
- 'foo 1.0.0': {
- '(dev) bar': '1.0.0'
- },
- 'bar 1.0.0': {}
- }, result: {
- 'myapp from root': '1.0.0',
- 'foo': '1.0.0'
- });
-}
-
-unsolvable() {
- testResolve('no version that matches requirement', {
- 'myapp 0.0.0': {
- 'foo': '>=1.0.0 <2.0.0'
- },
- 'foo 2.0.0': {},
- 'foo 2.1.3': {}
- }, error: noVersion(['myapp', 'foo']));
-
- testResolve('no version that matches combined constraint', {
- 'myapp 0.0.0': {
- 'foo': '1.0.0',
- 'bar': '1.0.0'
- },
- 'foo 1.0.0': {
- 'shared': '>=2.0.0 <3.0.0'
- },
- 'bar 1.0.0': {
- 'shared': '>=2.9.0 <4.0.0'
- },
- 'shared 2.5.0': {},
- 'shared 3.5.0': {}
- }, error: noVersion(['shared', 'foo', 'bar']));
-
- testResolve('disjoint constraints', {
- 'myapp 0.0.0': {
- 'foo': '1.0.0',
- 'bar': '1.0.0'
- },
- 'foo 1.0.0': {
- 'shared': '<=2.0.0'
- },
- 'bar 1.0.0': {
- 'shared': '>3.0.0'
- },
- 'shared 2.0.0': {},
- 'shared 4.0.0': {}
- }, error: disjointConstraint(['shared', 'foo', 'bar']));
-
- testResolve('mismatched descriptions', {
- 'myapp 0.0.0': {
- 'foo': '1.0.0',
- 'bar': '1.0.0'
- },
- 'foo 1.0.0': {
- 'shared-x': '1.0.0'
- },
- 'bar 1.0.0': {
- 'shared-y': '1.0.0'
- },
- 'shared-x 1.0.0': {},
- 'shared-y 1.0.0': {}
- }, error: descriptionMismatch('shared', 'foo', 'bar'));
-
- testResolve('mismatched sources', {
- 'myapp 0.0.0': {
- 'foo': '1.0.0',
- 'bar': '1.0.0'
- },
- 'foo 1.0.0': {
- 'shared': '1.0.0'
- },
- 'bar 1.0.0': {
- 'shared from mock2': '1.0.0'
- },
- 'shared 1.0.0': {},
- 'shared 1.0.0 from mock2': {}
- }, error: sourceMismatch('shared', 'foo', 'bar'));
-
- testResolve('no valid solution', {
- 'myapp 0.0.0': {
- 'a': 'any',
- 'b': 'any'
- },
- 'a 1.0.0': {
- 'b': '1.0.0'
- },
- 'a 2.0.0': {
- 'b': '2.0.0'
- },
- 'b 1.0.0': {
- 'a': '2.0.0'
- },
- 'b 2.0.0': {
- 'a': '1.0.0'
- }
- }, error: couldNotSolve, maxTries: 2);
-
- // This is a regression test for #15550.
- testResolve('no version that matches while backtracking', {
- 'myapp 0.0.0': {
- 'a': 'any',
- 'b': '>1.0.0'
- },
- 'a 1.0.0': {},
- 'b 1.0.0': {}
- }, error: noVersion(['myapp', 'b']), maxTries: 1);
-
-
- // This is a regression test for #18300.
- testResolve('...', {
- "myapp 0.0.0": {
- "angular": "any",
- "collection": "any"
- },
- "analyzer 0.12.2": {},
- "angular 0.10.0": {
- "di": ">=0.0.32 <0.1.0",
- "collection": ">=0.9.1 <1.0.0"
- },
- "angular 0.9.11": {
- "di": ">=0.0.32 <0.1.0",
- "collection": ">=0.9.1 <1.0.0"
- },
- "angular 0.9.10": {
- "di": ">=0.0.32 <0.1.0",
- "collection": ">=0.9.1 <1.0.0"
- },
- "collection 0.9.0": {},
- "collection 0.9.1": {},
- "di 0.0.37": {"analyzer": ">=0.13.0 <0.14.0"},
- "di 0.0.36": {"analyzer": ">=0.13.0 <0.14.0"}
- }, error: noVersion(['analyzer', 'di']), maxTries: 2);
-}
-
-badSource() {
- testResolve('fail if the root package has a bad source in dep', {
- 'myapp 0.0.0': {
- 'foo from bad': 'any'
- },
- }, error: unknownSource('myapp', 'foo', 'bad'));
-
- testResolve('fail if the root package has a bad source in dev dep', {
- 'myapp 0.0.0': {
- '(dev) foo from bad': 'any'
- },
- }, error: unknownSource('myapp', 'foo', 'bad'));
-
- testResolve('fail if all versions have bad source in dep', {
- 'myapp 0.0.0': {
- 'foo': 'any'
- },
- 'foo 1.0.0': {
- 'bar from bad': 'any'
- },
- 'foo 1.0.1': {
- 'baz from bad': 'any'
- },
- 'foo 1.0.3': {
- 'bang from bad': 'any'
- },
- }, error: unknownSource('foo', 'bar', 'bad'), maxTries: 3);
-
- testResolve('ignore versions with bad source in dep', {
- 'myapp 1.0.0': {
- 'foo': 'any'
- },
- 'foo 1.0.0': {
- 'bar': 'any'
- },
- 'foo 1.0.1': {
- 'bar from bad': 'any'
- },
- 'foo 1.0.3': {
- 'bar from bad': 'any'
- },
- 'bar 1.0.0': {}
- }, result: {
- 'myapp from root': '1.0.0',
- 'foo': '1.0.0',
- 'bar': '1.0.0'
- }, maxTries: 3);
-}
-
-backtracking() {
- testResolve('circular dependency on older version', {
- 'myapp 0.0.0': {
- 'a': '>=1.0.0'
- },
- 'a 1.0.0': {},
- 'a 2.0.0': {
- 'b': '1.0.0'
- },
- 'b 1.0.0': {
- 'a': '1.0.0'
- }
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '1.0.0'
- }, maxTries: 2);
-
- // The latest versions of a and b disagree on c. An older version of either
- // will resolve the problem. This test validates that b, which is farther
- // in the dependency graph from myapp is downgraded first.
- testResolve('rolls back leaf versions first', {
- 'myapp 0.0.0': {
- 'a': 'any'
- },
- 'a 1.0.0': {
- 'b': 'any'
- },
- 'a 2.0.0': {
- 'b': 'any',
- 'c': '2.0.0'
- },
- 'b 1.0.0': {},
- 'b 2.0.0': {
- 'c': '1.0.0'
- },
- 'c 1.0.0': {},
- 'c 2.0.0': {}
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '2.0.0',
- 'b': '1.0.0',
- 'c': '2.0.0'
- }, maxTries: 2);
-
- // Only one version of baz, so foo and bar will have to downgrade until they
- // reach it.
- testResolve('simple transitive', {
- 'myapp 0.0.0': {'foo': 'any'},
- 'foo 1.0.0': {'bar': '1.0.0'},
- 'foo 2.0.0': {'bar': '2.0.0'},
- 'foo 3.0.0': {'bar': '3.0.0'},
- 'bar 1.0.0': {'baz': 'any'},
- 'bar 2.0.0': {'baz': '2.0.0'},
- 'bar 3.0.0': {'baz': '3.0.0'},
- 'baz 1.0.0': {}
- }, result: {
- 'myapp from root': '0.0.0',
- 'foo': '1.0.0',
- 'bar': '1.0.0',
- 'baz': '1.0.0'
- }, maxTries: 3);
-
- // This ensures it doesn't exhaustively search all versions of b when it's
- // a-2.0.0 whose dependency on c-2.0.0-nonexistent led to the problem. We
- // make sure b has more versions than a so that the solver tries a first
- // since it sorts sibling dependencies by number of versions.
- testResolve('backjump to nearer unsatisfied package', {
- 'myapp 0.0.0': {
- 'a': 'any',
- 'b': 'any'
- },
- 'a 1.0.0': { 'c': '1.0.0' },
- 'a 2.0.0': { 'c': '2.0.0-nonexistent' },
- 'b 1.0.0': {},
- 'b 2.0.0': {},
- 'b 3.0.0': {},
- 'c 1.0.0': {},
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '1.0.0',
- 'b': '3.0.0',
- 'c': '1.0.0'
- }, maxTries: 2);
-
- // Tests that the backjumper will jump past unrelated selections when a
- // source conflict occurs. This test selects, in order:
- // - myapp -> a
- // - myapp -> b
- // - myapp -> c (1 of 5)
- // - b -> a
- // It selects a and b first because they have fewer versions than c. It
- // traverses b's dependency on a after selecting a version of c because
- // dependencies are traversed breadth-first (all of myapps's immediate deps
- // before any other their deps).
- //
- // This means it doesn't discover the source conflict until after selecting
- // c. When that happens, it should backjump past c instead of trying older
- // versions of it since they aren't related to the conflict.
- testResolve('backjump to conflicting source', {
- 'myapp 0.0.0': {
- 'a': 'any',
- 'b': 'any',
- 'c': 'any'
- },
- 'a 1.0.0': {},
- 'a 1.0.0 from mock2': {},
- 'b 1.0.0': {
- 'a': 'any'
- },
- 'b 2.0.0': {
- 'a from mock2': 'any'
- },
- 'c 1.0.0': {},
- 'c 2.0.0': {},
- 'c 3.0.0': {},
- 'c 4.0.0': {},
- 'c 5.0.0': {},
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '1.0.0',
- 'b': '1.0.0',
- 'c': '5.0.0'
- }, maxTries: 2);
-
- // Like the above test, but for a conflicting description.
- testResolve('backjump to conflicting description', {
- 'myapp 0.0.0': {
- 'a-x': 'any',
- 'b': 'any',
- 'c': 'any'
- },
- 'a-x 1.0.0': {},
- 'a-y 1.0.0': {},
- 'b 1.0.0': {
- 'a-x': 'any'
- },
- 'b 2.0.0': {
- 'a-y': 'any'
- },
- 'c 1.0.0': {},
- 'c 2.0.0': {},
- 'c 3.0.0': {},
- 'c 4.0.0': {},
- 'c 5.0.0': {},
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '1.0.0',
- 'b': '1.0.0',
- 'c': '5.0.0'
- }, maxTries: 2);
-
- // Similar to the above two tests but where there is no solution. It should
- // fail in this case with no backtracking.
- testResolve('backjump to conflicting source', {
- 'myapp 0.0.0': {
- 'a': 'any',
- 'b': 'any',
- 'c': 'any'
- },
- 'a 1.0.0': {},
- 'a 1.0.0 from mock2': {},
- 'b 1.0.0': {
- 'a from mock2': 'any'
- },
- 'c 1.0.0': {},
- 'c 2.0.0': {},
- 'c 3.0.0': {},
- 'c 4.0.0': {},
- 'c 5.0.0': {},
- }, error: sourceMismatch('a', 'myapp', 'b'), maxTries: 1);
-
- testResolve('backjump to conflicting description', {
- 'myapp 0.0.0': {
- 'a-x': 'any',
- 'b': 'any',
- 'c': 'any'
- },
- 'a-x 1.0.0': {},
- 'a-y 1.0.0': {},
- 'b 1.0.0': {
- 'a-y': 'any'
- },
- 'c 1.0.0': {},
- 'c 2.0.0': {},
- 'c 3.0.0': {},
- 'c 4.0.0': {},
- 'c 5.0.0': {},
- }, error: descriptionMismatch('a', 'myapp', 'b'), maxTries: 1);
-
- // Dependencies are ordered so that packages with fewer versions are tried
- // first. Here, there are two valid solutions (either a or b must be
- // downgraded once). The chosen one depends on which dep is traversed first.
- // Since b has fewer versions, it will be traversed first, which means a will
- // come later. Since later selections are revised first, a gets downgraded.
- testResolve('traverse into package with fewer versions first', {
- 'myapp 0.0.0': {
- 'a': 'any',
- 'b': 'any'
- },
- 'a 1.0.0': {'c': 'any'},
- 'a 2.0.0': {'c': 'any'},
- 'a 3.0.0': {'c': 'any'},
- 'a 4.0.0': {'c': 'any'},
- 'a 5.0.0': {'c': '1.0.0'},
- 'b 1.0.0': {'c': 'any'},
- 'b 2.0.0': {'c': 'any'},
- 'b 3.0.0': {'c': 'any'},
- 'b 4.0.0': {'c': '2.0.0'},
- 'c 1.0.0': {},
- 'c 2.0.0': {},
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '4.0.0',
- 'b': '4.0.0',
- 'c': '2.0.0'
- }, maxTries: 2);
-
- // This is similar to the above test. When getting the number of versions of
- // a package to determine which to traverse first, versions that are
- // disallowed by the root package's constraints should not be considered.
- // Here, foo has more versions of bar in total (4), but fewer that meet
- // myapp's constraints (only 2). There is no solution, but we will do less
- // backtracking if foo is tested first.
- testResolve('take root package constraints into counting versions', {
- "myapp 0.0.0": {
- "foo": ">2.0.0",
- "bar": "any"
- },
- "foo 1.0.0": {"none": "2.0.0"},
- "foo 2.0.0": {"none": "2.0.0"},
- "foo 3.0.0": {"none": "2.0.0"},
- "foo 4.0.0": {"none": "2.0.0"},
- "bar 1.0.0": {},
- "bar 2.0.0": {},
- "bar 3.0.0": {},
- "none 1.0.0": {}
- }, error: noVersion(["foo", "none"]), maxTries: 2);
-
- // This sets up a hundred versions of foo and bar, 0.0.0 through 9.9.0. Each
- // version of foo depends on a baz with the same major version. Each version
- // of bar depends on a baz with the same minor version. There is only one
- // version of baz, 0.0.0, so only older versions of foo and bar will
- // satisfy it.
- var map = {
- 'myapp 0.0.0': {
- 'foo': 'any',
- 'bar': 'any'
- },
- 'baz 0.0.0': {}
- };
-
- for (var i = 0; i < 10; i++) {
- for (var j = 0; j < 10; j++) {
- map['foo $i.$j.0'] = {'baz': '$i.0.0'};
- map['bar $i.$j.0'] = {'baz': '0.$j.0'};
- }
- }
-
- testResolve('complex backtrack', map, result: {
- 'myapp from root': '0.0.0',
- 'foo': '0.9.0',
- 'bar': '9.0.0',
- 'baz': '0.0.0'
- }, maxTries: 10);
-
- // If there's a disjoint constraint on a package, then selecting other
- // versions of it is a waste of time: no possible versions can match. We need
- // to jump past it to the most recent package that affected the constraint.
- testResolve('backjump past failed package on disjoint constraint', {
- 'myapp 0.0.0': {
- 'a': 'any',
- 'foo': '>2.0.0'
- },
- 'a 1.0.0': {
- 'foo': 'any' // ok
- },
- 'a 2.0.0': {
- 'foo': '<1.0.0' // disjoint with myapp's constraint on foo
- },
- 'foo 2.0.0': {},
- 'foo 2.0.1': {},
- 'foo 2.0.2': {},
- 'foo 2.0.3': {},
- 'foo 2.0.4': {}
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '1.0.0',
- 'foo': '2.0.4'
- }, maxTries: 2);
-
- // This is a regression test for #18666. It was possible for the solver to
- // "forget" that a package had previously led to an error. In that case, it
- // would backtrack over the failed package instead of trying different
- // versions of it.
- testResolve("finds solution with less strict constraint", {
- "myapp 1.0.0": {
- "a": "any",
- "c": "any",
- "d": "any"
- },
- "a 2.0.0": {},
- "a 1.0.0": {},
- "b 1.0.0": {"a": "1.0.0"},
- "c 1.0.0": {"b": "any"},
- "d 2.0.0": {"myapp": "any"},
- "d 1.0.0": {"myapp": "<1.0.0"}
- }, result: {
- 'myapp from root': '1.0.0',
- 'a': '1.0.0',
- 'b': '1.0.0',
- 'c': '1.0.0',
- 'd': '2.0.0'
- }, maxTries: 3);
-}
-
-sdkConstraint() {
- var badVersion = '0.0.0-nope';
- var goodVersion = sdk.version.toString();
-
- testResolve('root matches SDK', {
- 'myapp 0.0.0': {'sdk': goodVersion }
- }, result: {
- 'myapp from root': '0.0.0'
- });
-
- testResolve('root does not match SDK', {
- 'myapp 0.0.0': {'sdk': badVersion }
- }, error: couldNotSolve);
-
- testResolve('dependency does not match SDK', {
- 'myapp 0.0.0': {'foo': 'any'},
- 'foo 0.0.0': {'sdk': badVersion }
- }, error: couldNotSolve);
-
- testResolve('transitive dependency does not match SDK', {
- 'myapp 0.0.0': {'foo': 'any'},
- 'foo 0.0.0': {'bar': 'any'},
- 'bar 0.0.0': {'sdk': badVersion }
- }, error: couldNotSolve);
-
- testResolve('selects a dependency version that allows the SDK', {
- 'myapp 0.0.0': {'foo': 'any'},
- 'foo 1.0.0': {'sdk': goodVersion },
- 'foo 2.0.0': {'sdk': goodVersion },
- 'foo 3.0.0': {'sdk': badVersion },
- 'foo 4.0.0': {'sdk': badVersion }
- }, result: {
- 'myapp from root': '0.0.0',
- 'foo': '2.0.0'
- }, maxTries: 3);
-
- testResolve('selects a transitive dependency version that allows the SDK', {
- 'myapp 0.0.0': {'foo': 'any'},
- 'foo 1.0.0': {'bar': 'any'},
- 'bar 1.0.0': {'sdk': goodVersion },
- 'bar 2.0.0': {'sdk': goodVersion },
- 'bar 3.0.0': {'sdk': badVersion },
- 'bar 4.0.0': {'sdk': badVersion }
- }, result: {
- 'myapp from root': '0.0.0',
- 'foo': '1.0.0',
- 'bar': '2.0.0'
- }, maxTries: 3);
-
- testResolve('selects a dependency version that allows a transitive '
- 'dependency that allows the SDK', {
- 'myapp 0.0.0': {'foo': 'any'},
- 'foo 1.0.0': {'bar': '1.0.0'},
- 'foo 2.0.0': {'bar': '2.0.0'},
- 'foo 3.0.0': {'bar': '3.0.0'},
- 'foo 4.0.0': {'bar': '4.0.0'},
- 'bar 1.0.0': {'sdk': goodVersion },
- 'bar 2.0.0': {'sdk': goodVersion },
- 'bar 3.0.0': {'sdk': badVersion },
- 'bar 4.0.0': {'sdk': badVersion }
- }, result: {
- 'myapp from root': '0.0.0',
- 'foo': '2.0.0',
- 'bar': '2.0.0'
- }, maxTries: 3);
-}
-
-void prerelease() {
- testResolve('prefer stable versions over unstable', {
- 'myapp 0.0.0': {
- 'a': 'any'
- },
- 'a 1.0.0': {},
- 'a 1.1.0-dev': {},
- 'a 2.0.0-dev': {},
- 'a 3.0.0-dev': {}
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '1.0.0'
- });
-
- testResolve('use latest allowed prerelease if no stable versions match', {
- 'myapp 0.0.0': {
- 'a': '<2.0.0'
- },
- 'a 1.0.0-dev': {},
- 'a 1.1.0-dev': {},
- 'a 1.9.0-dev': {},
- 'a 3.0.0': {}
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '1.9.0-dev'
- });
-
- testResolve('use an earlier stable version on a < constraint', {
- 'myapp 0.0.0': {
- 'a': '<2.0.0'
- },
- 'a 1.0.0': {},
- 'a 1.1.0': {},
- 'a 2.0.0-dev': {},
- 'a 2.0.0': {}
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '1.1.0'
- });
-
- testResolve('prefer a stable version even if constraint mentions unstable', {
- 'myapp 0.0.0': {
- 'a': '<=2.0.0-dev'
- },
- 'a 1.0.0': {},
- 'a 1.1.0': {},
- 'a 2.0.0-dev': {},
- 'a 2.0.0': {}
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '1.1.0'
- });
-}
-
-void override() {
- testResolve('chooses best version matching override constraint', {
- 'myapp 0.0.0': {
- 'a': 'any'
- },
- 'a 1.0.0': {},
- 'a 2.0.0': {},
- 'a 3.0.0': {}
- }, overrides: {
- 'a': '<3.0.0'
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '2.0.0'
- });
-
- testResolve('uses override as dependency', {
- 'myapp 0.0.0': {},
- 'a 1.0.0': {},
- 'a 2.0.0': {},
- 'a 3.0.0': {}
- }, overrides: {
- 'a': '<3.0.0'
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '2.0.0'
- });
-
- testResolve('ignores other constraints on overridden package', {
- 'myapp 0.0.0': {
- 'b': 'any',
- 'c': 'any'
- },
- 'a 1.0.0': {},
- 'a 2.0.0': {},
- 'a 3.0.0': {},
- 'b 1.0.0': {
- 'a': '1.0.0'
- },
- 'c 1.0.0': {
- 'a': '3.0.0'
- }
- }, overrides: {
- 'a': '2.0.0'
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '2.0.0',
- 'b': '1.0.0',
- 'c': '1.0.0'
- });
-
- testResolve('backtracks on overidden package for its constraints', {
- 'myapp 0.0.0': {
- 'shared': '2.0.0'
- },
- 'a 1.0.0': {
- 'shared': 'any'
- },
- 'a 2.0.0': {
- 'shared': '1.0.0'
- },
- 'shared 1.0.0': {},
- 'shared 2.0.0': {}
- }, overrides: {
- 'a': '<3.0.0'
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '1.0.0',
- 'shared': '2.0.0'
- }, maxTries: 2);
-
- testResolve('override compatible with locked dependency', {
- 'myapp 0.0.0': {
- 'foo': 'any'
- },
- 'foo 1.0.0': { 'bar': '1.0.0' },
- 'foo 1.0.1': { 'bar': '1.0.1' },
- 'foo 1.0.2': { 'bar': '1.0.2' },
- 'bar 1.0.0': {},
- 'bar 1.0.1': {},
- 'bar 1.0.2': {}
- }, lockfile: {
- 'foo': '1.0.1'
- }, overrides: {
- 'foo': '<1.0.2'
- }, result: {
- 'myapp from root': '0.0.0',
- 'foo': '1.0.1',
- 'bar': '1.0.1'
- });
-
- testResolve('override incompatible with locked dependency', {
- 'myapp 0.0.0': {
- 'foo': 'any'
- },
- 'foo 1.0.0': { 'bar': '1.0.0' },
- 'foo 1.0.1': { 'bar': '1.0.1' },
- 'foo 1.0.2': { 'bar': '1.0.2' },
- 'bar 1.0.0': {},
- 'bar 1.0.1': {},
- 'bar 1.0.2': {}
- }, lockfile: {
- 'foo': '1.0.1'
- }, overrides: {
- 'foo': '>1.0.1'
- }, result: {
- 'myapp from root': '0.0.0',
- 'foo': '1.0.2',
- 'bar': '1.0.2'
- });
-
- testResolve('no version that matches override', {
- 'myapp 0.0.0': {},
- 'foo 2.0.0': {},
- 'foo 2.1.3': {}
- }, overrides: {
- 'foo': '>=1.0.0 <2.0.0'
- }, error: noVersion(['myapp']));
-
- testResolve('override a bad source without error', {
- 'myapp 0.0.0': {
- 'foo from bad': 'any'
- },
- 'foo 0.0.0': {}
- }, overrides: {
- 'foo': 'any'
- }, result: {
- 'myapp from root': '0.0.0',
- 'foo': '0.0.0'
- });
-}
-
-void downgrade() {
- testResolve("downgrades a dependency to the lowest matching version", {
- 'myapp 0.0.0': {
- 'foo': '>=2.0.0 <3.0.0'
- },
- 'foo 1.0.0': {},
- 'foo 2.0.0-dev': {},
- 'foo 2.0.0': {},
- 'foo 2.1.0': {}
- }, lockfile: {
- 'foo': '2.1.0'
- }, result: {
- 'myapp from root': '0.0.0',
- 'foo': '2.0.0'
- }, downgrade: true);
-
- testResolve('use earliest allowed prerelease if no stable versions match '
- 'while downgrading', {
- 'myapp 0.0.0': {
- 'a': '>=2.0.0-dev.1 <3.0.0'
- },
- 'a 1.0.0': {},
- 'a 2.0.0-dev.1': {},
- 'a 2.0.0-dev.2': {},
- 'a 2.0.0-dev.3': {}
- }, result: {
- 'myapp from root': '0.0.0',
- 'a': '2.0.0-dev.1'
- }, downgrade: true);
-}
-
-testResolve(String description, Map packages, {
- Map lockfile, Map overrides, Map result, FailMatcherBuilder error,
- int maxTries, bool downgrade: false}) {
- _testResolve(test, description, packages, lockfile: lockfile,
- overrides: overrides, result: result, error: error, maxTries: maxTries,
- downgrade: downgrade);
-}
-
-solo_testResolve(String description, Map packages, {
- Map lockfile, Map overrides, Map result, FailMatcherBuilder error,
- int maxTries, bool downgrade: false}) {
- log.verbosity = log.Verbosity.SOLVER;
- _testResolve(solo_test, description, packages, lockfile: lockfile,
- overrides: overrides, result: result, error: error, maxTries: maxTries,
- downgrade: downgrade);
-}
-
-_testResolve(void testFn(String description, Function body),
- String description, Map packages, {
- Map lockfile, Map overrides, Map result, FailMatcherBuilder error,
- int maxTries, bool downgrade: false}) {
- if (maxTries == null) maxTries = 1;
-
- testFn(description, () {
- var cache = new SystemCache('.');
- source1 = new MockSource('mock1');
- source2 = new MockSource('mock2');
- cache.register(source1);
- cache.register(source2);
- cache.sources.setDefault(source1.name);
-
- // Build the test package graph.
- var root;
- packages.forEach((description, dependencies) {
- var id = parseSpec(description);
- var package = mockPackage(id, dependencies,
- id.name == 'myapp' ? overrides : null);
- if (id.name == 'myapp') {
- // Don't add the root package to the server, so we can verify that Pub
- // doesn't try to look up information about the local package on the
- // remote server.
- root = package;
- } else {
- (cache.sources[id.source] as MockSource).addPackage(
- id.description, package);
- }
- });
-
- // Clean up the expectation.
- if (result != null) {
- var newResult = {};
- result.forEach((description, version) {
- var id = parseSpec(description, version);
- newResult[id.name] = id;
- });
- result = newResult;
- }
-
- // Parse the lockfile.
- var realLockFile = new LockFile.empty();
- if (lockfile != null) {
- lockfile.forEach((name, version) {
- version = new Version.parse(version);
- realLockFile.packages[name] =
- new PackageId(name, source1.name, version, name);
- });
- }
-
- // Resolve the versions.
- var future = resolveVersions(
- downgrade ? SolveType.DOWNGRADE : SolveType.GET,
- cache.sources, root, lockFile: realLockFile);
-
- var matcher;
- if (result != null) {
- matcher = new SolveSuccessMatcher(result, maxTries);
- } else if (error != null) {
- matcher = error(maxTries);
- }
-
- expect(future, completion(matcher));
- });
-}
-
-typedef SolveFailMatcher FailMatcherBuilder(int maxTries);
-
-FailMatcherBuilder noVersion(List<String> packages) {
- return (maxTries) => new SolveFailMatcher(packages, maxTries,
- NoVersionException);
-}
-
-FailMatcherBuilder disjointConstraint(List<String> packages) {
- return (maxTries) => new SolveFailMatcher(packages, maxTries,
- DisjointConstraintException);
-}
-
-FailMatcherBuilder descriptionMismatch(
- String package, String depender1, String depender2) {
- return (maxTries) => new SolveFailMatcher([package, depender1, depender2],
- maxTries, DescriptionMismatchException);
-}
-
-// If no solution can be found, the solver just reports the last failure that
-// happened during propagation. Since we don't specify the order that solutions
-// are tried, this just validates that *some* failure occurred, but not which.
-SolveFailMatcher couldNotSolve(maxTries) =>
- new SolveFailMatcher([], maxTries, null);
-
-FailMatcherBuilder sourceMismatch(
- String package, String depender1, String depender2) {
- return (maxTries) => new SolveFailMatcher([package, depender1, depender2],
- maxTries, SourceMismatchException);
-}
-
-unknownSource(String depender, String dependency, String source) {
- return (maxTries) => new SolveFailMatcher([depender, dependency, source],
- maxTries, UnknownSourceException);
-}
-
-class SolveSuccessMatcher implements Matcher {
- /// The expected concrete package selections.
- final Map<String, PackageId> _expected;
-
- /// The maximum number of attempts that should have been tried before finding
- /// the solution.
- final int _maxTries;
-
- SolveSuccessMatcher(this._expected, this._maxTries);
-
- Description describe(Description description) {
- return description.add(
- 'Solver to use at most $_maxTries attempts to find:\n'
- '${_listPackages(_expected.values)}');
- }
-
- Description describeMismatch(SolveResult result,
- Description description,
- Map state, bool verbose) {
- if (!result.succeeded) {
- description.add('Solver failed with:\n${result.error}');
- return null;
- }
-
- description.add('Resolved:\n${_listPackages(result.packages)}\n');
- description.add(state['failures']);
- return description;
- }
-
- bool matches(SolveResult result, Map state) {
- if (!result.succeeded) return false;
-
- var expected = new Map.from(_expected);
- var failures = new StringBuffer();
-
- for (var id in result.packages) {
- if (!expected.containsKey(id.name)) {
- failures.writeln('Should not have selected $id');
- } else {
- var expectedId = expected.remove(id.name);
- if (id != expectedId) {
- failures.writeln('Expected $expectedId, not $id');
- }
- }
- }
-
- if (!expected.isEmpty) {
- failures.writeln('Missing:\n${_listPackages(expected.values)}');
- }
-
- // Allow 1 here because the greedy solver will only make one attempt.
- if (result.attemptedSolutions != 1 &&
- result.attemptedSolutions > _maxTries) {
- failures.writeln('Took ${result.attemptedSolutions} attempts');
- }
-
- if (!failures.isEmpty) {
- state['failures'] = failures.toString();
- return false;
- }
-
- return true;
- }
-
- String _listPackages(Iterable<PackageId> packages) {
- return '- ${packages.join('\n- ')}';
- }
-}
-
-class SolveFailMatcher implements Matcher {
- /// The strings that should appear in the resulting error message.
- // TODO(rnystrom): This seems to always be package names. Make that explicit.
- final Iterable<String> _expected;
-
- /// The maximum number of attempts that should be tried before failing.
- final int _maxTries;
-
- /// The concrete error type that should be found, or `null` if any
- /// [SolveFailure] is allowed.
- final Type _expectedType;
-
- SolveFailMatcher(this._expected, this._maxTries, this._expectedType);
-
- Description describe(Description description) {
- description.add('Solver should fail after at most $_maxTries attempts.');
- if (!_expected.isEmpty) {
- var textList = _expected.map((s) => '"$s"').join(", ");
- description.add(' The error should contain $textList.');
- }
- return description;
- }
-
- Description describeMismatch(SolveResult result,
- Description description,
- Map state, bool verbose) {
- description.add(state['failures']);
- return description;
- }
-
- bool matches(SolveResult result, Map state) {
- var failures = new StringBuffer();
-
- if (result.succeeded) {
- failures.writeln('Solver succeeded');
- } else {
- if (_expectedType != null && result.error.runtimeType != _expectedType) {
- failures.writeln('Should have error type $_expectedType, got '
- '${result.error.runtimeType}');
- }
-
- var message = result.error.toString();
- for (var expected in _expected) {
- if (!message.contains(expected)) {
- failures.writeln(
- 'Expected error to contain "$expected", got:\n$message');
- }
- }
-
- // Allow 1 here because the greedy solver will only make one attempt.
- if (result.attemptedSolutions != 1 &&
- result.attemptedSolutions > _maxTries) {
- failures.writeln('Took ${result.attemptedSolutions} attempts');
- }
- }
-
- if (!failures.isEmpty) {
- state['failures'] = failures.toString();
- return false;
- }
-
- return true;
- }
-}
-
-/// A source used for testing. This both creates mock package objects and acts
-/// as a source for them.
-///
-/// In order to support testing packages that have the same name but different
-/// descriptions, a package's name is calculated by taking the description
-/// string and stripping off any trailing hyphen followed by non-hyphen
-/// characters.
-class MockSource extends CachedSource {
- final _packages = <String, Map<Version, Package>>{};
-
- /// Keeps track of which package version lists have been requested. Ensures
- /// that a source is only hit once for a given package and that pub
- /// internally caches the results.
- final _requestedVersions = new Set<String>();
-
- /// Keeps track of which package pubspecs have been requested. Ensures that a
- /// source is only hit once for a given package and that pub internally
- /// caches the results.
- final _requestedPubspecs = new Map<String, Set<Version>>();
-
- final String name;
- final hasMultipleVersions = true;
-
- MockSource(this.name);
-
- dynamic parseDescription(String containingPath, description,
- {bool fromLockFile: false}) => description;
-
- bool descriptionsEqual(description1, description2) =>
- description1 == description2;
-
- Future<String> getDirectory(PackageId id) {
- return new Future.value('${id.name}-${id.version}');
- }
-
- Future<List<Pubspec>> getVersions(String name, String description) {
- return new Future.sync(() {
- // Make sure the solver doesn't request the same thing twice.
- if (_requestedVersions.contains(description)) {
- throw new Exception('Version list for $description was already '
- 'requested.');
- }
-
- _requestedVersions.add(description);
-
- if (!_packages.containsKey(description)){
- throw new Exception('MockSource does not have a package matching '
- '"$description".');
- }
-
- return _packages[description].values
- .map((package) => package.pubspec).toList();
- });
- }
-
- Future<Pubspec> describeUncached(PackageId id) {
- return new Future.sync(() {
- // Make sure the solver doesn't request the same thing twice.
- if (_requestedPubspecs.containsKey(id.description) &&
- _requestedPubspecs[id.description].contains(id.version)) {
- throw new Exception('Pubspec for $id was already requested.');
- }
-
- _requestedPubspecs.putIfAbsent(id.description, () => new Set<Version>());
- _requestedPubspecs[id.description].add(id.version);
-
- return _packages[id.description][id.version].pubspec;
- });
- }
-
- Future<Package> downloadToSystemCache(PackageId id) =>
- throw new UnsupportedError('Cannot download mock packages');
-
- List<Package> getCachedPackages() =>
- throw new UnsupportedError('Cannot get mock packages');
-
- Future<Pair<int, int>> repairCachedPackages() =>
- throw new UnsupportedError('Cannot repair mock packages');
-
- void addPackage(String description, Package package) {
- _packages.putIfAbsent(description, () => new Map<Version, Package>());
- _packages[description][package.version] = package;
- }
-}
-
-Package mockPackage(PackageId id, Map dependencyStrings, Map overrides) {
- var sdkConstraint = null;
-
- // Build the pubspec dependencies.
- var dependencies = <PackageDep>[];
- var devDependencies = <PackageDep>[];
-
- dependencyStrings.forEach((spec, constraint) {
- var isDev = spec.startsWith("(dev) ");
- if (isDev) {
- spec = spec.substring("(dev) ".length);
- }
-
- var dep = parseSpec(spec).withConstraint(
- new VersionConstraint.parse(constraint));
-
- if (dep.name == 'sdk') {
- sdkConstraint = dep.constraint;
- return;
- }
-
- if (isDev) {
- devDependencies.add(dep);
- } else {
- dependencies.add(dep);
- }
- });
-
- var dependencyOverrides = <PackageDep>[];
- if (overrides != null) {
- overrides.forEach((spec, constraint) {
- dependencyOverrides.add(parseSpec(spec).withConstraint(
- new VersionConstraint.parse(constraint)));
- });
- }
-
- return new Package.inMemory(new Pubspec(id.name,
- version: id.version,
- dependencies: dependencies,
- devDependencies: devDependencies,
- dependencyOverrides: dependencyOverrides,
- sdkConstraint: sdkConstraint));
-}
-
-/// Creates a new [PackageId] parsed from [text], which looks something like
-/// this:
-///
-/// foo-xyz 1.0.0 from mock
-///
-/// The package name is "foo". A hyphenated suffix like "-xyz" here is part
-/// of the package description, but not its name, so the description here is
-/// "foo-xyz".
-///
-/// This is followed by an optional [Version]. If [version] is provided, then
-/// it is parsed to a [Version], and [text] should *not* also contain a
-/// version string.
-///
-/// The "from mock" optional suffix is the name of a source for the package.
-/// If omitted, it defaults to "mock1".
-PackageId parseSpec(String text, [String version]) {
- var pattern = new RegExp(r"(([a-z_]*)(-[a-z_]+)?)( ([^ ]+))?( from (.*))?$");
- var match = pattern.firstMatch(text);
- if (match == null) {
- throw new FormatException("Could not parse spec '$text'.");
- }
-
- var description = match[1];
- var name = match[2];
-
- var parsedVersion;
- if (version != null) {
- // Spec string shouldn't also contain a version.
- if (match[5] != null) {
- throw new ArgumentError("Spec '$text' should not contain a version "
- "since '$version' was passed in explicitly.");
- }
- parsedVersion = new Version.parse(version);
- } else {
- if (match[5] != null) {
- parsedVersion = new Version.parse(match[5]);
- } else {
- parsedVersion = Version.none;
- }
- }
-
- var source = "mock1";
- if (match[7] != null) {
- source = match[7];
- if (source == "root") source = null;
- }
-
- return new PackageId(name, source, parsedVersion, description);
-}
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