pkg/analyzer/test/src/dart/resolution/import_test.dart

// Copyright (c) 2018, 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:test_reflective_loader/test_reflective_loader.dart';

import 'context_collection_resolution.dart';

main() {
  defineReflectiveSuite(() {
    defineReflectiveTests(ImportDirectiveResolutionTest);
  });
}

@reflectiveTest
class ImportDirectiveResolutionTest extends PubPackageResolutionTest {
  test_configurations_default() async {
    newFile('$testPackageLibPath/a.dart', content: 'class A {}');
    newFile('$testPackageLibPath/a_html.dart', content: 'class A {}');
    newFile('$testPackageLibPath/a_io.dart', content: 'class A {}');

    declaredVariables = {
      'dart.library.html': 'false',
      'dart.library.io': 'false',
    };

    await assertNoErrorsInCode(r'''
import 'a.dart'
  if (dart.library.html) 'a_html.dart'
  if (dart.library.io) 'a_io.dart';

var a = A();
''');

    assertNamespaceDirectiveSelected(
      findNode.import('a.dart'),
      expectedRelativeUri: 'a.dart',
      expectedUri: 'package:test/a.dart',
    );

    var a = findElement.topVar('a');
    assertElementLibraryUri(a.type.element, 'package:test/a.dart');
  }

  test_configurations_first() async {
    newFile('$testPackageLibPath/a.dart', content: 'class A {}');
    newFile('$testPackageLibPath/a_html.dart', content: 'class A {}');
    newFile('$testPackageLibPath/a_io.dart', content: 'class A {}');

    declaredVariables = {
      'dart.library.html': 'true',
      'dart.library.io': 'false',
    };

    await assertNoErrorsInCode(r'''
import 'a.dart'
  if (dart.library.html) 'a_html.dart'
  if (dart.library.io) 'a_io.dart';

var a = A();
''');

    assertNamespaceDirectiveSelected(
      findNode.import('a.dart'),
      expectedRelativeUri: 'a_html.dart',
      expectedUri: 'package:test/a_html.dart',
    );

    var a = findElement.topVar('a');
    assertElementLibraryUri(a.type.element, 'package:test/a_html.dart');
  }

  test_configurations_second() async {
    newFile('$testPackageLibPath/a.dart', content: 'class A {}');
    newFile('$testPackageLibPath/a_html.dart', content: 'class A {}');
    newFile('$testPackageLibPath/a_io.dart', content: 'class A {}');

    declaredVariables = {
      'dart.library.html': 'false',
      'dart.library.io': 'true',
    };

    await assertNoErrorsInCode(r'''
import 'a.dart'
  if (dart.library.html) 'a_html.dart'
  if (dart.library.io) 'a_io.dart';

var a = A();
''');

    assertNamespaceDirectiveSelected(
      findNode.import('a.dart'),
      expectedRelativeUri: 'a_io.dart',
      expectedUri: 'package:test/a_io.dart',
    );

    var a = findElement.topVar('a');
    assertElementLibraryUri(a.type.element, 'package:test/a_io.dart');
  }
}