Update pub to use the new command runner API in args.

sdk/lib/_internal/pub/test/pub_test.dart

 // 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 'test_pub.dart';
 
-final USAGE_STRING = """
-    Pub is a package manager for Dart.
-
-    Usage: pub <command> [arguments]
-
-    Global options:
-    -h, --help            Print this usage information.
-        --version         Print pub version.
-        --[no-]trace      Print debugging information when an error occurs.
-        --verbosity       Control output verbosity.
-
-              [all]       Show all output including internal tracing messages.
-              [io]        Also show IO operations.
-              [normal]    Show errors, warnings, and user messages.
-              [solver]    Show steps during version resolution.
-
-    -v, --verbose         Shortcut for "--verbosity=all".
-
-    Available commands:
-      build       Apply transformers to build a package.
-      cache       Work with the system cache.
-      deps        Print package dependencies.
-      downgrade   Downgrade the current package's dependencies to oldest versions.
-      get         Get the current package's dependencies.
-      global      Work with global packages.
-      help        Display help information for Pub.
-      publish     Publish the current package to pub.dartlang.org.
-      run         Run an executable from a package.
-      serve       Run a local web development server.
-      upgrade     Upgrade the current package's dependencies to latest versions.
-      uploader    Manage uploaders for a package on pub.dartlang.org.
-      version     Print pub version.
-
-    Run "pub help [command]" for more information about a command.
-    See http://dartlang.org/tools/pub for detailed documentation.
-    """;
-
-final VERSION_STRING = '''
-    Pub 0.1.2+3
-    ''';
-
 main() {
   initConfig();
 
   integration('running pub with no command displays usage', () {
-    schedulePub(args: [], output: USAGE_STRING);
-  });
+    schedulePub(args: [], output: """
+        Pub is a package manager for Dart.
 
-  integration('running pub with just --help displays usage', () {
-    schedulePub(args: ['--help'], output: USAGE_STRING);
-  });
+        Usage: pub <command> [arguments]
 
-  integration('running pub with just -h displays usage', () {
-    schedulePub(args: ['-h'], output: USAGE_STRING);
-  });
+        Global options:
+        -h, --help            Print this usage information.
+            --version         Print pub version.
+            --[no-]trace      Print debugging information when an error occurs.
+            --verbosity       Control output verbosity.
 
-  integration('running pub with --with-prejudice upcases everything', () {
-    schedulePub(args: ['--with-prejudice'], output: USAGE_STRING.toUpperCase());
-  });
+                  [all]       Show all output including internal tracing messages.
+                  [io]        Also show IO operations.
+                  [normal]    Show errors, warnings, and user messages.
+                  [solver]    Show steps during version resolution.
 
-  integration('running pub with --help after command shows command usage', () {
-    schedulePub(args: ['get', '--help'],
-        output: '''
-          Get the current package's dependencies.
-
-          Usage: pub get
-          -h, --help            Print usage information for this command.
-              --[no-]offline    Use cached packages instead of accessing the network.
-          -n, --dry-run         Report what dependencies would change but don't change any.
-
-          Run "pub help" to see global options.
-          See http://dartlang.org/tools/pub/cmd/pub-get.html for detailed documentation.
-    ''');
-  });
-
-  integration('running pub with -h after command shows command usage', () {
-    schedulePub(args: ['get', '-h'],
-        output: '''
-          Get the current package's dependencies.
-
-          Usage: pub get
-          -h, --help            Print usage information for this command.
-              --[no-]offline    Use cached packages instead of accessing the network.
-          -n, --dry-run         Report what dependencies would change but don't change any.
-
-          Run "pub help" to see global options.
-          See http://dartlang.org/tools/pub/cmd/pub-get.html for detailed documentation.
-    ''');
-  });
-
-  integration('running pub with --help after a command with subcommands shows '
-              'command usage', () {
-    schedulePub(args: ['cache', '--help'],
-        output: '''
-          Work with the system cache.
-
-          Usage: pub cache <subcommand>
-          -h, --help    Print usage information for this command.
-
-          Available subcommands:
-            add      Install a package.
-            repair   Reinstall cached packages.
-
-          Run "pub help" to see global options.
-          See http://dartlang.org/tools/pub/cmd/pub-cache.html for detailed documentation.
-     ''');
-  });
-
-
-  integration('running pub with just --version displays version', () {
-    schedulePub(args: ['--version'], output: VERSION_STRING);
-  });
-
-  integration('an unknown command displays an error message', () {
-    schedulePub(args: ['quylthulg'],
-        error: '''
-        Could not find a command named "quylthulg".
+        -v, --verbose         Shortcut for "--verbosity=all".
 
         Available commands:
           build       Apply transformers to build a package.
           cache       Work with the system cache.
           deps        Print package dependencies.
           downgrade   Downgrade the current package's dependencies to oldest versions.
           get         Get the current package's dependencies.
           global      Work with global packages.
-          help        Display help information for Pub.
+          help        Display help information for pub.
           publish     Publish the current package to pub.dartlang.org.
           run         Run an executable from a package.
           serve       Run a local web development server.
           upgrade     Upgrade the current package's dependencies to latest versions.
           uploader    Manage uploaders for a package on pub.dartlang.org.
           version     Print pub version.
-        ''',
-        exitCode: exit_codes.USAGE);
+
+        Run "pub help <command>" for more information about a command.
+        See http://dartlang.org/tools/pub for detailed documentation.
+        """);
   });
 
-  integration('an unknown subcommand displays an error message', () {
-    schedulePub(args: ['cache', 'quylthulg'],
-        error: '''
-        Could not find a subcommand named "quylthulg" for "pub cache".
-
-        Usage: pub cache <subcommand>
-        -h, --help    Print usage information for this command.
-
-        Available subcommands:
-          add      Install a package.
-          repair   Reinstall cached packages.
-
-        Run "pub help" to see global options.
-        See http://dartlang.org/tools/pub/cmd/pub-cache.html for detailed documentation.
-        ''',
-        exitCode: exit_codes.USAGE);
-  });
-
-  integration('an unknown option displays an error message', () {
-    schedulePub(args: ['--blorf'],
-        error: '''
-        Could not find an option named "blorf".
-        Run "pub help" to see available options.
-        ''',
-        exitCode: exit_codes.USAGE);
-  });
-
-  integration('an unknown command option displays an error message', () {
-    // TODO(rnystrom): When pub has command-specific options, a more precise
-    // error message would be good here.
-    schedulePub(args: ['version', '--blorf'],
-        error: '''
-        Could not find an option named "blorf".
-        Run "pub help" to see available options.
-        ''',
-        exitCode: exit_codes.USAGE);
-  });
-
-  integration('an unexpected argument displays an error message', () {
-    schedulePub(args: ['version', 'unexpected'],
-        error: '''
-        Command "version" does not take any arguments.
-
-        Usage: pub version
-         -h, --help    Print usage information for this command.
-
-        Run "pub help" to see global options.
-        ''',
-        exitCode: exit_codes.USAGE);
-  });
-
-  integration('a missing subcommand displays an error message', () {
-    schedulePub(args: ['cache'],
-        error: '''
-        Missing subcommand for "pub cache".
-
-        Usage: pub cache <subcommand>
-        -h, --help    Print usage information for this command.
-
-        Available subcommands:
-          add      Install a package.
-          repair   Reinstall cached packages.
-
-        Run "pub help" to see global options.
-        See http://dartlang.org/tools/pub/cmd/pub-cache.html for detailed documentation.
-        ''',
-        exitCode: exit_codes.USAGE);
-  });
-
-  group('help', () {
-    integration('shows global help if no command is given', () {
-      schedulePub(args: ['help'], output: USAGE_STRING);
-    });
-
-    integration('shows help for a command', () {
-      schedulePub(args: ['help', 'get'],
-          output: '''
-            Get the current package's dependencies.
-
-            Usage: pub get
-            -h, --help            Print usage information for this command.
-                --[no-]offline    Use cached packages instead of accessing the network.
-            -n, --dry-run         Report what dependencies would change but don't change any.
-
-            Run "pub help" to see global options.
-            See http://dartlang.org/tools/pub/cmd/pub-get.html for detailed documentation.
-            ''');
-    });
-
-    integration('shows help for a command', () {
-      schedulePub(args: ['help', 'publish'],
-          output: '''
-            Publish the current package to pub.dartlang.org.
-
-            Usage: pub publish [options]
-            -h, --help       Print usage information for this command.
-            -n, --dry-run    Validate but do not publish the package.
-            -f, --force      Publish without confirmation if there are no errors.
-                --server     The package server to which to upload this package.
-                             (defaults to "https://pub.dartlang.org")
-
-            Run "pub help" to see global options.
-            See http://dartlang.org/tools/pub/cmd/pub-lish.html for detailed documentation.
-            ''');
-    });
-
-    integration('shows non-truncated help', () {
-      schedulePub(args: ['help', 'serve'],
-          output: '''
-            Run a local web development server.
-
-            By default, this serves "web/" and "test/", but an explicit list of
-            directories to serve can be provided as well.
-
-            Usage: pub serve [directories...]
-            -h, --help               Print usage information for this command.
-                --mode               Mode to run transformers in.
-                                     (defaults to "debug")
-
-                --all                Use all default source directories.
-                --hostname           The hostname to listen on.
-                                     (defaults to "localhost")
-
-                --port               The base port to listen on.
-                                     (defaults to "8080")
-
-                --[no-]dart2js       Compile Dart to JavaScript.
-                                     (defaults to on)
-
-                --[no-]force-poll    Force the use of a polling filesystem watcher.
-
-            Run "pub help" to see global options.
-            See http://dartlang.org/tools/pub/cmd/pub-serve.html for detailed documentation.
-            ''');
-    });
-
-    integration('shows help for a subcommand', () {
-      schedulePub(args: ['help', 'cache', 'list'],
-          output: '''
-            List packages in the system cache.
-
-            Usage: pub cache list
-            -h, --help    Print usage information for this command.
-
-            Run "pub help" to see global options.
-            ''');
-    });
-
-    integration('an unknown help command displays an error message', () {
-      schedulePub(args: ['help', 'quylthulg'],
-          error: '''
-            Could not find a command named "quylthulg".
-
-            Available commands:
-              build       Apply transformers to build a package.
-              cache       Work with the system cache.
-              deps        Print package dependencies.
-              downgrade   Downgrade the current package's dependencies to oldest versions.
-              get         Get the current package's dependencies.
-              global      Work with global packages.
-              help        Display help information for Pub.
-              publish     Publish the current package to pub.dartlang.org.
-              run         Run an executable from a package.
-              serve       Run a local web development server.
-              upgrade     Upgrade the current package's dependencies to latest versions.
-              uploader    Manage uploaders for a package on pub.dartlang.org.
-              version     Print pub version.
-            ''',
-            exitCode: exit_codes.USAGE);
-    });
-
-    integration('an unknown help subcommand displays an error message', () {
-      schedulePub(args: ['help', 'cache', 'quylthulg'],
-          error: '''
-            Could not find a subcommand named "quylthulg" for "pub cache".
-
-            Usage: pub cache <subcommand>
-            -h, --help    Print usage information for this command.
-
-            Available subcommands:
-              add      Install a package.
-              repair   Reinstall cached packages.
-
-            Run "pub help" to see global options.
-            See http://dartlang.org/tools/pub/cmd/pub-cache.html for detailed documentation.
-            ''',
-            exitCode: exit_codes.USAGE);
-    });
-
-    integration('an unexpected help subcommand displays an error message', () {
-      schedulePub(args: ['help', 'version', 'badsubcommand'],
-          error: '''
-            Command "pub version" does not expect a subcommand.
-
-            Usage: pub version
-            -h, --help    Print usage information for this command.
-
-            Run "pub help" to see global options.
-            ''',
-            exitCode: exit_codes.USAGE);
-    });
-  });
-
-  group('version', () {
-    integration('displays the current version', () {
-      schedulePub(args: ['version'], output: VERSION_STRING);
-    });
+  integration('running pub with just --version displays version', () {
+    schedulePub(args: ['--version'], output: 'Pub 0.1.2+3');
   });
 }