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Unified Diff: pkg/args/test/usage_test.dart

Issue 814113004: Pull args, intl, logging, shelf, and source_maps out of the SDK. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Also csslib. Created 6 years ago
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Index: pkg/args/test/usage_test.dart
diff --git a/pkg/args/test/usage_test.dart b/pkg/args/test/usage_test.dart
deleted file mode 100644
index 2c44ec36d21bec78e5d1d9fd3395421286addd28..0000000000000000000000000000000000000000
--- a/pkg/args/test/usage_test.dart
+++ /dev/null
@@ -1,264 +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 usage_test;
-
-import 'package:unittest/unittest.dart';
-import 'package:args/args.dart';
-
-void main() {
- group('ArgParser.usage', () {
- test('negatable flags show "no-" in title', () {
- var parser = new ArgParser();
- parser.addFlag('mode', help: 'The mode');
-
- validateUsage(parser,
- '''
- --[no-]mode The mode
- ''');
- });
-
- test('non-negatable flags don\'t show "no-" in title', () {
- var parser = new ArgParser();
- parser.addFlag('mode', negatable: false, help: 'The mode');
-
- validateUsage(parser,
- '''
- --mode The mode
- ''');
- });
-
- test('if there are no abbreviations, there is no column for them', () {
- var parser = new ArgParser();
- parser.addFlag('mode', help: 'The mode');
-
- validateUsage(parser,
- '''
- --[no-]mode The mode
- ''');
- });
-
- test('options are lined up past abbreviations', () {
- var parser = new ArgParser();
- parser.addFlag('mode', abbr: 'm', help: 'The mode');
- parser.addOption('long', help: 'Lacks an abbreviation');
-
- validateUsage(parser,
- '''
- -m, --[no-]mode The mode
- --long Lacks an abbreviation
- ''');
- });
-
- test('help text is lined up past the longest option', () {
- var parser = new ArgParser();
- parser.addFlag('mode', abbr: 'm', help: 'Lined up with below');
- parser.addOption('a-really-long-name', help: 'Its help text');
-
- validateUsage(parser,
- '''
- -m, --[no-]mode Lined up with below
- --a-really-long-name Its help text
- ''');
- });
-
- test('leading empty lines are ignored in help text', () {
- var parser = new ArgParser();
- parser.addFlag('mode', help: '\n\n\n\nAfter newlines');
-
- validateUsage(parser,
- '''
- --[no-]mode After newlines
- ''');
- });
-
- test('trailing empty lines are ignored in help text', () {
- var parser = new ArgParser();
- parser.addFlag('mode', help: 'Before newlines\n\n\n\n');
-
- validateUsage(parser,
- '''
- --[no-]mode Before newlines
- ''');
- });
-
- test('options are documented in the order they were added', () {
- var parser = new ArgParser();
- parser.addFlag('zebra', help: 'First');
- parser.addFlag('monkey', help: 'Second');
- parser.addFlag('wombat', help: 'Third');
-
- validateUsage(parser,
- '''
- --[no-]zebra First
- --[no-]monkey Second
- --[no-]wombat Third
- ''');
- });
-
- test('the default value for a flag is shown if on', () {
- var parser = new ArgParser();
- parser.addFlag('affirm', help: 'Should be on', defaultsTo: true);
- parser.addFlag('negate', help: 'Should be off', defaultsTo: false);
-
- validateUsage(parser,
- '''
- --[no-]affirm Should be on
- (defaults to on)
-
- --[no-]negate Should be off
- ''');
- });
-
- test('the default value for an option with no allowed list is shown', () {
- var parser = new ArgParser();
- parser.addOption('any', help: 'Can be anything', defaultsTo: 'whatevs');
-
- validateUsage(parser,
- '''
- --any Can be anything
- (defaults to "whatevs")
- ''');
- });
-
- test('the value help is shown', () {
- var parser = new ArgParser();
- parser.addOption('out', abbr: 'o', help: 'Where to write file',
- valueHelp: 'path');
-
- validateUsage(parser,
- '''
- -o, --out=<path> Where to write file
- ''');
- });
-
- test('the allowed list is shown', () {
- var parser = new ArgParser();
- parser.addOption('suit', help: 'Like in cards',
- allowed: ['spades', 'clubs', 'hearts', 'diamonds']);
-
- validateUsage(parser,
- '''
- --suit Like in cards
- [spades, clubs, hearts, diamonds]
- ''');
- });
-
- test('the default is highlighted in the allowed list', () {
- var parser = new ArgParser();
- parser.addOption('suit', help: 'Like in cards', defaultsTo: 'clubs',
- allowed: ['spades', 'clubs', 'hearts', 'diamonds']);
-
- validateUsage(parser,
- '''
- --suit Like in cards
- [spades, clubs (default), hearts, diamonds]
- ''');
- });
-
- test('the allowed help is shown', () {
- var parser = new ArgParser();
- parser.addOption('suit', help: 'Like in cards', defaultsTo: 'clubs',
- allowed: ['spades', 'clubs', 'diamonds', 'hearts'],
- allowedHelp: {
- 'spades': 'Swords of a soldier',
- 'clubs': 'Weapons of war',
- 'diamonds': 'Money for this art',
- 'hearts': 'The shape of my heart'
- });
-
- validateUsage(parser,
- '''
- --suit Like in cards
-
- [clubs] Weapons of war
- [diamonds] Money for this art
- [hearts] The shape of my heart
- [spades] Swords of a soldier
- ''');
- });
-
- test("hidden options don't appear in the help", () {
- var parser = new ArgParser();
- parser.addOption('first', help: 'The first option');
- parser.addOption('second', hide: true);
- parser.addOption('third', help: 'The third option');
-
-
- validateUsage(parser,
- '''
- --first The first option
- --third The third option
- ''');
- });
-
- test("hidden flags don't appear in the help", () {
- var parser = new ArgParser();
- parser.addFlag('first', help: 'The first flag');
- parser.addFlag('second', hide: true);
- parser.addFlag('third', help: 'The third flag');
-
-
- validateUsage(parser,
- '''
- --[no-]first The first flag
- --[no-]third The third flag
- ''');
- });
-
- test("hidden options don't affect spacing", () {
- var parser = new ArgParser();
- parser.addFlag('first', help: 'The first flag');
- parser.addFlag('second-very-long-option', hide: true);
- parser.addFlag('third', help: 'The third flag');
-
-
- validateUsage(parser,
- '''
- --[no-]first The first flag
- --[no-]third The third flag
- ''');
- });
- });
-}
-
-void validateUsage(ArgParser parser, String expected) {
- expected = unindentString(expected);
- expect(parser.usage, equals(expected));
-}
-
-// TODO(rnystrom): Replace one in test_utils.
-String unindentString(String text) {
- var lines = text.split('\n');
-
- // Count the indentation of the last line.
- var whitespace = new RegExp('^ *');
- var indent = whitespace.firstMatch(lines[lines.length - 1])[0].length;
-
- // Drop the last line. It only exists for specifying indentation.
- lines.removeLast();
-
- // Strip indentation from the remaining lines.
- for (var i = 0; i < lines.length; i++) {
- var line = lines[i];
- if (line.length <= indent) {
- // It's short, so it must be nothing but whitespace.
- if (line.trim() != '') {
- throw new ArgumentError(
- 'Line "$line" does not have enough indentation.');
- }
-
- lines[i] = '';
- } else {
- if (line.substring(0, indent).trim() != '') {
- throw new ArgumentError(
- 'Line "$line" does not have enough indentation.');
- }
-
- lines[i] = line.substring(indent);
- }
- }
-
- return lines.join('\n');
-}
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