Matching for import/export/part directives.

pkg/analyzer/test/generated/incremental_resolver_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 engine.incremental_resolver_test;
 
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/error.dart';
@@ skipping 206 matching lines @@
 
   void test_false_enum_constants_remove() {
     resetWithEnum();
     _assertCompilationUnitMatches(false, r'''
 enum E {A, B, C}
 ''', r'''
 enum E {A, B}
 ''');
   }
 
+  void test_false_export_list_add() {
+    _assertCompilationUnitMatches(false, r'''
+export 'dart:async';
+''', r'''
+export 'dart:async';
+export 'dart:math';
+''');
+  }
+
+  void test_false_export_list_remove() {
+    _assertCompilationUnitMatches(false, r'''
+export 'dart:async';
+export 'dart:math';
+''', r'''
+export 'dart:async';
+''');
+  }
+
   void test_false_extendsClause_add() {
     _assertCompilationUnitMatches(false, r'''
 class A {}
 class B {}
 ''', r'''
 class A {}
 class B extends A {}
 ''');
   }
 
@@ skipping 170 matching lines @@
 class A {}
 class B {}
 class C implements A, B {}
 ''', r'''
 class A {}
 class B {}
 class C implements B, A {}
 ''');
   }
 
+  void test_false_import_hide_add() {
+    _assertCompilationUnitMatches(false, r'''
+import 'dart:async' hide Future;
+''', r'''
+import 'dart:async' hide Future, Stream;
+''');
+  }
+
+  void test_false_import_hide_remove() {
+    _assertCompilationUnitMatches(false, r'''
+import 'dart:async' hide Future, Stream;
+''', r'''
+import 'dart:async' hide Future;
+''');
+  }
+
+  void test_false_import_list_add() {
+    _assertCompilationUnitMatches(false, r'''
+import 'dart:async';
+''', r'''
+import 'dart:async';
+import 'dart:math';
+''');
+  }
+
+  void test_false_import_list_remove() {
+    _assertCompilationUnitMatches(false, r'''
+import 'dart:async';
+import 'dart:math';
+''', r'''
+import 'dart:async';
+''');
+  }
+
+  void test_false_import_prefix_add() {
+    _assertCompilationUnitMatches(false, r'''
+import 'dart:async';
+''', r'''
+import 'dart:async' as async;
+''');
+  }
+
+  void test_false_import_prefix_edit() {
+    _assertCompilationUnitMatches(false, r'''
+import 'dart:async' as oldPrefix;
+''', r'''
+import 'dart:async' as newPrefix;
+''');
+  }
+
+  void test_false_import_prefix_remove() {
+    _assertCompilationUnitMatches(false, r'''
+import 'dart:async' as async;
+''', r'''
+import 'dart:async';
+''');
+  }
+
+  void test_false_import_show_add() {
+    _assertCompilationUnitMatches(false, r'''
+import 'dart:async' show Future;
+''', r'''
+import 'dart:async' show Future, Stream;
+''');
+  }
+
+  void test_false_import_show_remove() {
+    _assertCompilationUnitMatches(false, r'''
+import 'dart:async' show Future, Stream;
+''', r'''
+import 'dart:async' show Future;
+''');
+  }
+
+  void test_false_part_list_add() {
+    addNamedSource('/unitA.dart', 'part of lib; class A {}');
+    addNamedSource('/unitB.dart', 'part of lib; class B {}');
+    _assertCompilationUnitMatches(false, r'''
+library lib;
+part 'unitA.dart';
+''', r'''
+library lib;
+part 'unitA.dart';
+part 'unitB.dart';
+''');
+  }
+
+  void test_false_part_list_remove() {
+    addNamedSource('/unitA.dart', 'part of lib; class A {}');
+    addNamedSource('/unitB.dart', 'part of lib; class B {}');
+    _assertCompilationUnitMatches(false, r'''
+library lib;
+part 'unitA.dart';
+part 'unitB.dart';
+''', r'''
+library lib;
+part 'unitA.dart';
+''');
+  }
+
   void test_false_topLevelVariable_list_add() {
     _assertCompilationUnitMatches(false, r'''
 const int A = 1;
 const int C = 3;
 ''', r'''
 const int A = 1;
 const int B = 2;
 const int C = 3;
 ''');
   }
@@ skipping 267 matching lines @@
 main() {
   int a = 42;
 }
 ''', r'''
 main() {
   int a = 42;
 }
 ''');
   }
 
+  void test_true_export_list_reorder() {
+    _assertCompilationUnitMatches(true, r'''
+export 'dart:async';
+export 'dart:math';
+''', r'''
+export 'dart:math';
+export 'dart:async';
+''');
+  }
+
+  void test_true_export_list_same() {
+    _assertCompilationUnitMatches(true, r'''
+export 'dart:async';
+export 'dart:math';
+''', r'''
+export 'dart:async';
+export 'dart:math';
+''');
+  }
+
   void test_true_extendsClause_same() {
     _assertCompilationUnitMatches(true, r'''
 class A {}
 class B extends A {}
 ''', r'''
 class A {}
 class B extends A {}
 ''');
   }
 
@@ skipping 32 matching lines @@
   void test_true_implementsClause_same() {
     _assertCompilationUnitMatches(true, r'''
 class A {}
 class B implements A {}
 ''', r'''
 class A {}
 class B implements A {}
 ''');
   }
 
+  void test_true_import_hide_reorder() {
+    _assertCompilationUnitMatches(true, r'''
+import 'dart:async' hide Future, Stream;
+''', r'''
+import 'dart:async' hide Stream, Future;
+''');
+  }
+
+  void test_true_import_list_reorder() {
+    _assertCompilationUnitMatches(true, r'''
+import 'dart:async';
+import 'dart:math';
+''', r'''
+import 'dart:math';
+import 'dart:async';
+''');
+  }
+
+  void test_true_import_list_same() {
+    _assertCompilationUnitMatches(true, r'''
+import 'dart:async';
+import 'dart:math';
+''', r'''
+import 'dart:async';
+import 'dart:math';
+''');
+  }
+
+  void test_true_import_prefix() {
+    _assertCompilationUnitMatches(true, r'''
+import 'dart:async' as async;
+''', r'''
+import 'dart:async' as async;
+''');
+  }
+
+  void test_true_import_show_reorder() {
+    _assertCompilationUnitMatches(true, r'''
+import 'dart:async' show Future, Stream;
+''', r'''
+import 'dart:async' show Stream, Future;
+''');
+  }
+
+  void test_true_part_list_reorder() {
+    addNamedSource('/unitA.dart', 'part of lib; class A {}');
+    addNamedSource('/unitB.dart', 'part of lib; class B {}');
+    _assertCompilationUnitMatches(true, r'''
+library lib;
+part 'unitA.dart';
+part 'unitB.dart';
+''', r'''
+library lib;
+part 'unitB.dart';
+part 'unitA.dart';
+''');
+  }
+
+  void test_true_part_list_same() {
+    addNamedSource('/unitA.dart', 'part of lib; class A {}');
+    addNamedSource('/unitB.dart', 'part of lib; class B {}');
+    _assertCompilationUnitMatches(true, r'''
+library lib;
+part 'unitA.dart';
+part 'unitB.dart';
+''', r'''
+library lib;
+part 'unitA.dart';
+part 'unitB.dart';
+''');
+  }
+
   void test_true_topLevelVariable_list_reorder() {
     _assertCompilationUnitMatches(true, r'''
 const int A = 1;
 const int B = 2;
 const int C = 3;
 ''', r'''
 const int C = 3;
 const int A = 1;
 const int B = 2;
 ''');
@@ skipping 59 matching lines @@
   }
 }
 
 
 class IncrementalResolverTest extends ResolverTestCase {
   Source source;
   String code;
   LibraryElement library;
   CompilationUnit unit;
 
+  void fail_test_constructor_fieldInitializer_add() {
+    // TODO(scheglov) resolver uses "enclosingClass", which we don't set yet
+    _resolveUnit(r'''
+class A {
+  int f;
+  A(int a, int b);
+}''');
+    _resolve(_editString(');', ') : f = a + b;'), _isClassMember);
+  }
+
   void fail_test_functionBody_addLocalVariable() {
     // TODO(scheglov) this test fails, because we don't create element models
     // for new local variables
     _resolveUnit(r'''
 main(int a, int b) {
   return a + b;
 }
 ''');
     _resolve(_editString('  return a + b;', r'''
   int res = a + b;
@@ skipping 16 matching lines @@
     _resolveUnit(r'''
 class A {
   int f;
   A(int a, int b) : f = a + b {
     int a = 42;
   }
 }''');
     _resolve(_editString('+', '*'), _isExpression);
   }
 
-  void fail_test_constructor_fieldInitializer_add() {
-    // TODO(scheglov) resolver uses "enclosingClass", which we don't set yet
-    _resolveUnit(r'''
-class A {
-  int f;
-  A(int a, int b);
-}''');
-    _resolve(_editString(');', ') : f = a + b;'), _isClassMember);
-  }
-
   void test_constructor_superConstructorInvocation() {
     _resolveUnit(r'''
 class A {
   A(int p);
 }
 class A {
   A(int a, int b) : super(a + b);
 }
 ''');
     _resolve(_editString('+', '*'), _isExpression);
@@ skipping 120 matching lines @@
 
   static AstNode _findNodeAt(CompilationUnit oldUnit, int offset,
       Predicate<AstNode> predicate) {
     NodeLocator locator = new NodeLocator.con1(offset);
     AstNode node = locator.searchWithin(oldUnit);
     return node.getAncestor(predicate);
   }
 
   static bool _isBlock(AstNode node) => node is Block;
 
+  static bool _isClassMember(AstNode node) => node is ClassMember;
+
   static bool _isExpression(AstNode node) => node is Expression;
 
-  static bool _isClassMember(AstNode node) => node is ClassMember;
-
   static bool _isFunctionBody(AstNode node) => node is FunctionBody;
 
   static bool _isStatement(AstNode node) => node is Statement;
 
   static CompilationUnit _parseUnit(String code) {
     var errorListener = new BooleanErrorListener();
     var reader = new CharSequenceReader(code);
     var scanner = new Scanner(null, reader, errorListener);
     var token = scanner.tokenize();
     var parser = new Parser(null, errorListener);
@@ skipping 1079 matching lines @@
     _visitList(node.metadata, other.metadata);
     _visitNode(node.identifier, other.identifier);
   }
 
   static void assertSameResolution(CompilationUnit actual,
       CompilationUnit expected) {
     _SameResolutionValidator validator = new _SameResolutionValidator(expected);
     actual.accept(validator);
   }
 }