| // Copyright (c) 2020, 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:analysis_server/src/services/correction/fix.dart'; |
| import 'package:analysis_server/src/services/linter/lint_names.dart'; |
| import 'package:analyzer_plugin/utilities/fixes/fixes.dart'; |
| import 'package:test_reflective_loader/test_reflective_loader.dart'; |
| |
| import '../../../../abstract_context.dart'; |
| import 'fix_processor.dart'; |
| |
| void main() { |
| defineReflectiveSuite(() { |
| defineReflectiveTests(DeadNullAwareAssignmentExpressionTest); |
| defineReflectiveTests(DeadNullAwareExpressionTest); |
| defineReflectiveTests(UnnecessaryNullInIfNullOperatorsTest); |
| }); |
| } |
| |
| @reflectiveTest |
| class DeadNullAwareAssignmentExpressionTest extends FixProcessorTest |
| with WithNullSafetyMixin { |
| @override |
| FixKind get kind => DartFixKind.REMOVE_IF_NULL_OPERATOR; |
| |
| Future<void> test_assignmentExpression_nonPromotable() async { |
| await resolveTestCode(''' |
| class C { |
| int a = 1; |
| void f(int b) { |
| a ??= b; |
| } |
| } |
| '''); |
| await assertHasFix(''' |
| class C { |
| int a = 1; |
| void f(int b) { |
| a; |
| } |
| } |
| '''); |
| } |
| |
| Future<void> test_assignmentExpression_promotable() async { |
| await resolveTestCode(''' |
| void f(int a, int b) { |
| a ??= b; |
| } |
| '''); |
| await assertHasFix(''' |
| void f(int a, int b) { |
| } |
| '''); |
| } |
| |
| Future<void> test_immediateChild() async { |
| await resolveTestCode(''' |
| void f(int a, int b) => a ??= b; |
| '''); |
| await assertHasFix(''' |
| void f(int a, int b) => a; |
| '''); |
| } |
| |
| Future<void> test_nestedChild() async { |
| await resolveTestCode(''' |
| void f(int a, int b) => a ??= b * 2 + 1; |
| '''); |
| await assertHasFix(''' |
| void f(int a, int b) => a; |
| '''); |
| } |
| |
| Future<void> test_nestedChild_onRight() async { |
| await resolveTestCode(''' |
| void f(int a, int b, int c) => a = b ??= c; |
| '''); |
| await assertHasFix(''' |
| void f(int a, int b, int c) => a = b; |
| '''); |
| } |
| } |
| |
| @reflectiveTest |
| class DeadNullAwareExpressionTest extends FixProcessorTest |
| with WithNullSafetyMixin { |
| @override |
| FixKind get kind => DartFixKind.REMOVE_IF_NULL_OPERATOR; |
| |
| Future<void> test_immediateChild() async { |
| await resolveTestCode(''' |
| int f(int a, int b) => a ?? b; |
| '''); |
| await assertHasFix(''' |
| int f(int a, int b) => a; |
| '''); |
| } |
| |
| Future<void> test_nestedChild() async { |
| await resolveTestCode(''' |
| int f(int a, int b) => a ?? b * 2 + 1; |
| '''); |
| await assertHasFix(''' |
| int f(int a, int b) => a; |
| '''); |
| } |
| } |
| |
| @reflectiveTest |
| class UnnecessaryNullInIfNullOperatorsTest extends FixProcessorLintTest { |
| @override |
| FixKind get kind => DartFixKind.REMOVE_IF_NULL_OPERATOR; |
| |
| @override |
| String get lintCode => LintNames.unnecessary_null_in_if_null_operators; |
| |
| Future<void> test_left() async { |
| await resolveTestCode(''' |
| var a = ''; |
| var b = null ?? a; |
| '''); |
| await assertHasFix(''' |
| var a = ''; |
| var b = a; |
| '''); |
| } |
| |
| Future<void> test_right() async { |
| await resolveTestCode(''' |
| var a = ''; |
| var b = a ?? null; |
| '''); |
| await assertHasFix(''' |
| var a = ''; |
| var b = a; |
| '''); |
| } |
| } |