Flow control structure formatting (a la the Style Guide).

pkg/analyzer_experimental/test/services/formatter_test.dart

 // Copyright (c) 2013, 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.
 
 import 'package:unittest/unittest.dart';
 
 import 'package:analyzer_experimental/src/generated/scanner.dart';
 import 'package:analyzer_experimental/src/services/formatter_impl.dart';
 import 'package:analyzer_experimental/src/services/writer.dart';
 
@@ skipping 745 matching lines @@
       );
       expectStmtFormatsTo(
         'for (final foo in bar.foos) {\n'
         '  print(foo);\n'
         '}',
         'for (final foo in bar.foos) {\n'
         '  print(foo);\n'
         '}'
       );
     });
+    
+    test('Statement (if)', () {
+      expectStmtFormatsTo('if (true) print("true!");', 
+                          'if (true) print("true!");');
+      expectStmtFormatsTo('if (true) { print("true!"); }', 
+                          'if (true) {\n'
+                          '  print("true!");\n'
+                          '}');
+      expectStmtFormatsTo('if (true) print("true!"); else print("false!");', 
+                          'if (true) {\n'
+                          '  print("true!");\n'
+                          '} else {\n'
+                          '  print("false!");\n'
+                          '}');
+    }); 
 
     test('initialIndent', () {
       var formatter = new CodeFormatter(
           new FormatterOptions(initialIndentationLevel: 2));
       var formattedSource = 
           formatter.format(CodeKind.STATEMENT, 'var x;').source;
       expect(formattedSource, startsWith('    '));
     });
 
     test('selections', () {
@@ skipping 217 matching lines @@
 
 expectStreamsNotEqual(Token t1, Token t2) =>
     expect(() => new TokenStreamComparator(null, t1, t2).verifyEquals(),
     throwsA(new isInstanceOf<FormatterException>()));
 
 expectCUFormatsTo(src, expected) => 
     expect(formatCU(src).source, equals(expected));
 
 expectStmtFormatsTo(src, expected) => 
     expect(formatStatement(src), equals(expected));