tests/corelib_strong/expando_test.dart - Issue 2989643002: Migrate test block 8 to Dart 2.0.

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Issue 2989643002: Migrate test block 8 to Dart 2.0. (Closed)

Patch Set: Merge Created 3 years, 4 months ago

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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file

2 // for details. All rights reserved. Use of this source code is governed by a

3 // BSD-style license that can be found in the LICENSE file.

4

5 import "package:expect/expect.dart";

6

7 class ExpandoTest {

8 static Expando<int> visits;

9

10 static testMain() {

11 visits = new Expando<int>('visits');

12 var legal = [

13 new Object(),

14 new List(),

15 [1, 2, 3],

16 const [1, 2, 3],

17 new Map(),

18 {'x': 1, 'y': 2},

19 const {'x': 1, 'y': 2},

20 new Expando(),

21 new Expando('horse')

22 ];

23 for (var object in legal) {

24 testNamedExpando(object);

25 testUnnamedExpando(object);

26 }

27 for (var object in legal) {

28 Expect.equals(2, visits[object], "$object");

29 }

30 testIllegal();

31 testIdentity();

32 }

33

34 static visit(object) {

35 int count = visits[object];

36 count = (count == null) ? 1 : count + 1;

37 visits[object] = count;

38 }

39

40 static testNamedExpando(object) {

41 Expando<int> expando = new Expando<int>('myexpando');

42 Expect.equals('myexpando', expando.name);

43 Expect.isTrue(expando.toString().startsWith('Expando:myexpando'));

44 testExpando(expando, object);

45 }

46

47 static testUnnamedExpando(object) {

48 Expando<int> expando = new Expando<int>();

49 Expect.isNull(expando.name);

50 Expect.isTrue(expando.toString().startsWith('Expando:'));

51 testExpando(expando, object);

52 }

53

54 static testExpando(Expando<int> expando, object) {

55 visit(object);

56

57 Expect.isNull(expando[object]);

58 expando[object] = 42;

59 Expect.equals(42, expando[object]);

60 expando[object] = null;

61 Expect.isNull(expando[object]);

62

63 Expando<int> alternative = new Expando('myexpando');

64 Expect.isNull(alternative[object]);

65 alternative[object] = 87;

66 Expect.isNull(expando[object]);

67 expando[object] = 99;

68 Expect.equals(99, expando[object]);

69 Expect.equals(87, alternative[object]);

70 }

71

72 static testIllegal() {

73 Expando<int> expando = new Expando<int>();

74 Expect.throws(

75 () => expando[null], (exception) => exception is ArgumentError, "null");

76 Expect.throws(() => expando['string'],

77 (exception) => exception is ArgumentError, "'string'");

78 Expect.throws(() => expando['string'],

79 (exception) => exception is ArgumentError, "'string'");

80 Expect.throws(

81 () => expando[42], (exception) => exception is ArgumentError, "42");

82 Expect.throws(() => expando[42.87],

83 (exception) => exception is ArgumentError, "42.87");

84 Expect.throws(

85 () => expando[true], (exception) => exception is ArgumentError, "true");

86 Expect.throws(() => expando[false],

87 (exception) => exception is ArgumentError, "false");

88 }

89

90 static testIdentity() {

91 // Expando only depends on identity of object.

92 Expando<int> expando = new Expando<int>();

93 var m1 = new Mutable(1);

94 var m2 = new Mutable(7);

95 var m3 = new Mutable(13);

96 expando[m1] = 42;

97 Expect.equals(42, expando[m1]);

98 m1.id = 37;

99 Expect.equals(42, expando[m1]);

100 expando[m2] = 37;

101 expando[m3] = 10;

102 m3.id = 1;

103 Expect.equals(42, expando[m1]);

104 Expect.equals(37, expando[m2]);

105 Expect.equals(10, expando[m3]);

106 }

107 }

108

109 main() => ExpandoTest.testMain();

110

111 class Mutable {

112 int id;

113 Mutable(this.id);

114 int get hashCode => id;

115 bool operator ==(other) => other is Mutable && other.id == id;

116 }

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