pkg/analyzer/test/src/diagnostics/map_value_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(MapValueTypeNotAssignableTest);
    defineReflectiveTests(
        MapValueTypeNotAssignableWithoutNullSafetyAndNoImplicitCastsTest);
    defineReflectiveTests(MapValueTypeNotAssignableWithoutNullSafetyTest);
    defineReflectiveTests(MapValueTypeNotAssignableWithStrictCastsTest);
  });
}

@reflectiveTest
class MapValueTypeNotAssignableTest extends PubPackageResolutionTest
    with MapValueTypeNotAssignableTestCases {
  test_const_intQuestion_null_dynamic() async {
    await assertNoErrorsInCode('''
const dynamic a = null;
var v = const <bool, int?>{true: a};
''');
  }

  test_const_intQuestion_null_value() async {
    await assertNoErrorsInCode('''
var v = const <bool, int?>{true: null};
''');
  }
}

mixin MapValueTypeNotAssignableTestCases on PubPackageResolutionTest {
  test_const_ifElement_thenElseFalse_intInt_dynamic() async {
    await assertNoErrorsInCode('''
const dynamic a = 0;
const dynamic b = 0;
var v = const <bool, int>{if (1 < 0) true: a else false: b};
''');
  }

  test_const_ifElement_thenElseFalse_intString_dynamic() async {
    await assertErrorsInCode('''
const dynamic a = 0;
const dynamic b = 'b';
var v = const <bool, int>{if (1 < 0) true: a else false: b};
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 101, 1),
    ]);
  }

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

  test_const_ifElement_thenFalse_intString_value() async {
    await assertErrorsInCode('''
var v = const <bool, int>{if (1 < 0) true: 'a'};
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 43, 3),
    ]);
  }

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

  test_const_ifElement_thenTrue_intString_dynamic() async {
    await assertErrorsInCode('''
const dynamic a = 'a';
var v = const <bool, int>{if (true) true: a};
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 65, 1),
    ]);
  }

  test_const_ifElement_thenTrue_notConst() async {
    await assertErrorsInCode('''
final a = 0;
var v = const <bool, int>{if (1 < 2) true: a};
''', [
      error(CompileTimeErrorCode.NON_CONSTANT_MAP_VALUE, 56, 1),
    ]);
  }

  test_const_intInt_dynamic() async {
    await assertNoErrorsInCode('''
const dynamic a = 0;
var v = const <bool, int>{true: a};
''');
  }

  test_const_intNull_dynamic() async {
    var errors = expectedErrorsByNullability(nullable: [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 56, 1),
    ], legacy: []);
    await assertErrorsInCode('''
const dynamic a = null;
var v = const <bool, int>{true: a};
''', errors);
  }

  test_const_intNull_value() async {
    var errors = expectedErrorsByNullability(nullable: [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 32, 4),
    ], legacy: []);
    await assertErrorsInCode('''
var v = const <bool, int>{true: null};
''', errors);
  }

  test_const_intString_dynamic() async {
    await assertErrorsInCode('''
const dynamic a = 'a';
var v = const <bool, int>{true: a};
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 55, 1),
    ]);
  }

  test_const_intString_value() async {
    await assertErrorsInCode('''
var v = const <bool, int>{true: 'a'};
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 32, 3),
    ]);
  }

  test_const_spread_intInt() async {
    await assertNoErrorsInCode('''
var v = const <bool, int>{...{true: 1}};
''');
  }

  test_const_spread_intString_dynamic() async {
    await assertErrorsInCode('''
const dynamic a = 'a';
var v = const <bool, int>{...{true: a}};
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 59, 1),
    ]);
  }

  test_nonConst_ifElement_thenElseFalse_intInt_dynamic() async {
    await assertNoErrorsInCode('''
const dynamic a = 0;
const dynamic b = 0;
var v = <bool, int>{if (1 < 0) true: a else false: b};
''');
  }

  test_nonConst_ifElement_thenElseFalse_intString_dynamic() async {
    await assertNoErrorsInCode('''
const dynamic a = 0;
const dynamic b = 'b';
var v = <bool, int>{if (1 < 0) true: a else false: b};
''');
  }

  test_nonConst_ifElement_thenFalse_intString_value() async {
    await assertErrorsInCode('''
var v = <bool, int>{if (1 < 0) true: 'a'};
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 37, 3),
    ]);
  }

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

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

  test_nonConst_intInt_dynamic() async {
    await assertNoErrorsInCode('''
const dynamic a = 0;
var v = <bool, int>{true: a};
''');
  }

  test_nonConst_intString_dynamic() async {
    await assertNoErrorsInCode('''
const dynamic a = 'a';
var v = <bool, int>{true: a};
''');
  }

  test_nonConst_intString_value() async {
    await assertErrorsInCode('''
var v = <bool, int>{true: 'a'};
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 26, 3),
    ]);
  }

  test_nonConst_spread_intInt() async {
    await assertNoErrorsInCode('''
var v = <bool, int>{...{true: 1}};
''');
  }

  test_nonConst_spread_intString() async {
    await assertErrorsInCode('''
var v = <bool, int>{...{true: 'a'}};
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 30, 3),
    ]);
  }

  test_nonConst_spread_intString_dynamic() async {
    await assertNoErrorsInCode('''
const dynamic a = 'a';
var v = <bool, int>{...{true: a}};
''');
  }
}

@reflectiveTest
class MapValueTypeNotAssignableWithoutNullSafetyAndNoImplicitCastsTest
    extends PubPackageResolutionTest
    with WithoutNullSafetyMixin, WithNoImplicitCastsMixin {
  test_ifElement_falseBranch_value_dynamic() async {
    await assertErrorsWithNoImplicitCasts(r'''
void f(bool c, dynamic a) {
  <int, int>{if (c) 0: 0 else 0: a};
}
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 61, 1),
    ]);
  }

  test_ifElement_falseBranch_value_supertype() async {
    await assertErrorsWithNoImplicitCasts(r'''
void f(bool c, num a) {
  <int, int>{if (c) 0: 0 else 0: a};
}
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 57, 1),
    ]);
  }

  test_ifElement_trueBranch_value_dynamic() async {
    await assertErrorsWithNoImplicitCasts(r'''
void f(bool c, dynamic a) {
  <int, int>{if (c) 0: a};
}
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 51, 1),
    ]);
  }

  test_ifElement_trueBranch_value_supertype() async {
    await assertErrorsWithNoImplicitCasts(r'''
void f(bool c, num a) {
  <int, int>{if (c) 0: a};
}
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 47, 1),
    ]);
  }

  test_spread_value_supertype() async {
    await assertErrorsWithNoImplicitCasts(r'''
void f(Map<dynamic, num> a) {
  <dynamic, int>{...a};
}
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 50, 1),
    ]);
  }
}

@reflectiveTest
class MapValueTypeNotAssignableWithoutNullSafetyTest
    extends PubPackageResolutionTest
    with WithoutNullSafetyMixin, MapValueTypeNotAssignableTestCases {
  test_nonConst_spread_intNum() async {
    await assertNoErrorsInCode('''
var v = <int, int>{...<num, num>{1: 1}};
''');
  }
}

@reflectiveTest
class MapValueTypeNotAssignableWithStrictCastsTest
    extends PubPackageResolutionTest with WithStrictCastsMixin {
  test_ifElement_falseBranch() async {
    await assertErrorsWithStrictCasts('''
void f(bool c, dynamic a) {
  <int, int>{if (c) 0: 0 else 0: a};
}
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 61, 1),
    ]);
  }

  test_ifElement_trueBranch() async {
    await assertErrorsWithStrictCasts('''
void f(bool c, dynamic a) {
  <int, int>{if (c) 0: a};
}
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 51, 1),
    ]);
  }

  test_spread() async {
    await assertErrorsWithStrictCasts('''
void f(Map<int, dynamic> a) {
  <int, int>{...a};
}
''', [
      error(CompileTimeErrorCode.MAP_VALUE_TYPE_NOT_ASSIGNABLE, 46, 1),
    ]);
  }
}