pkg/analyzer/test/src/diagnostics/set_element_type_not_assignable_test.dart

// Copyright (c) 2019, 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:analyzer/src/error/codes.dart';
import 'package:test_reflective_loader/test_reflective_loader.dart';

import '../dart/resolution/context_collection_resolution.dart';

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

@reflectiveTest
class SetElementTypeNotAssignableTest extends PubPackageResolutionTest
    with SetElementTypeNotAssignableTestCases {}

mixin SetElementTypeNotAssignableTestCases on PubPackageResolutionTest {
  test_const_ifElement_thenElseFalse_intInt() async {
    await assertNoErrorsInCode('''
const dynamic a = 0;
const dynamic b = 0;
var v = const <int>{if (1 < 0) a else b};
''');
  }

  test_const_ifElement_thenElseFalse_intString() async {
    await assertErrorsInCode('''
const dynamic a = 0;
const dynamic b = 'b';
var v = const <int>{if (1 < 0) a else b};
''', [
      error(CompileTimeErrorCode.SET_ELEMENT_TYPE_NOT_ASSIGNABLE, 82, 1),
    ]);
  }

  test_const_ifElement_thenFalse_intString() async {
    await assertErrorsInCode('''
var v = const <int>{if (1 < 0) 'a'};
''', [
      error(CompileTimeErrorCode.SET_ELEMENT_TYPE_NOT_ASSIGNABLE, 31, 3),
    ]);
  }

  test_const_ifElement_thenFalse_intString_dynamic() async {
    await assertNoErrorsInCode('''
const dynamic a = 'a';
var v = const <int>{if (1 < 0) a};
''');
  }

  test_const_ifElement_thenTrue_intInt() async {
    await assertNoErrorsInCode('''
const dynamic a = 0;
var v = const <int>{if (true) a};
''');
  }

  test_const_ifElement_thenTrue_intString() async {
    await assertErrorsInCode('''
const dynamic a = 'a';
var v = const <int>{if (true) a};
''', [
      error(CompileTimeErrorCode.SET_ELEMENT_TYPE_NOT_ASSIGNABLE, 53, 1),
    ]);
  }

  test_const_spread_intInt() async {
    await assertNoErrorsInCode('''
var v = const <int>{...[0, 1]};
''');
  }

  test_explicitTypeArgs_const() async {
    await assertErrorsInCode('''
var v = const <String>{42};
''', [
      error(CompileTimeErrorCode.SET_ELEMENT_TYPE_NOT_ASSIGNABLE, 23, 2),
    ]);
  }

  test_explicitTypeArgs_const_actualTypeMatch() async {
    await assertNoErrorsInCode('''
const dynamic x = null;
var v = const <String>{x};
''');
  }

  test_explicitTypeArgs_const_actualTypeMismatch() async {
    await assertErrorsInCode('''
const dynamic x = 42;
var v = const <String>{x};
''', [
      error(CompileTimeErrorCode.SET_ELEMENT_TYPE_NOT_ASSIGNABLE, 45, 1),
    ]);
  }

  test_explicitTypeArgs_notConst() async {
    await assertErrorsInCode('''
var v = <String>{42};
''', [
      error(CompileTimeErrorCode.SET_ELEMENT_TYPE_NOT_ASSIGNABLE, 17, 2),
    ]);
  }

  test_nonConst_ifElement_thenElseFalse_intDynamic() async {
    await assertNoErrorsInCode('''
const dynamic a = 'a';
const dynamic b = 'b';
var v = <int>{if (1 < 0) a else b};
''');
  }

  test_nonConst_ifElement_thenElseFalse_intInt() async {
    await assertNoErrorsInCode('''
const dynamic a = 0;
const dynamic b = 0;
var v = <int>{if (1 < 0) a else b};
''');
  }

  test_nonConst_ifElement_thenFalse_intString() async {
    await assertErrorsInCode('''
var v = <int>[if (1 < 0) 'a'];
''', [
      error(CompileTimeErrorCode.LIST_ELEMENT_TYPE_NOT_ASSIGNABLE, 25, 3),
    ]);
  }

  test_nonConst_ifElement_thenTrue_intDynamic() async {
    await assertNoErrorsInCode('''
const dynamic a = 'a';
var v = <int>{if (true) a};
''');
  }

  test_nonConst_ifElement_thenTrue_intInt() async {
    await assertNoErrorsInCode('''
const dynamic a = 0;
var v = <int>{if (true) a};
''');
  }

  test_nonConst_spread_intInt() async {
    await assertNoErrorsInCode('''
var v = <int>{...[0, 1]};
''');
  }
}