mocked.tests.readme source code

1 module mocked.tests.readme;
2 
3 import mocked;
4 
5 unittest
6 {
7     static class Dependency
8     {
9         string authorOf(string phrase)
10         {
11             return null;
12         }
13     }
14 
15     enum string phrase = "[T]he meaning of a word is its use in the language.";
16     enum string expected = "L. Wittgenstein";
17 
18     Mocker mocker;
19     auto builder = mocker.mock!Dependency;
20 
21     builder.expect
22         .authorOf("[T]he meaning of a word is its use in the language.")
23         .returns(expected);
24 
25     auto dependency = builder.get;
26 
27     assert(dependency.authorOf(phrase) == expected);
28 }
29 
30 unittest
31 {
32     import std.math : fabs;
33 
34     static class Dependency
35     {
36         public void call(float)
37         {
38         }
39     }
40 
41     // This function is used to compare two floating point numbers that don't
42     // match exactly.
43     alias approxComparator = (float a, float b) {
44         return fabs(a - b) <= 0.1;
45     };
46     auto mocker = configure!(Comparator!approxComparator);
47     auto builder = mocker.mock!Dependency;
48 
49     builder.expect.call(1.01);
50 
51     auto mock = builder.get;
52 
53     mock.call(1.02);
54 
55     mocker.verify;
56 }
57 
58 unittest
59 {
60     static class Dependency
61     {
62         bool isTrue()
63         {
64             return true;
65         }
66     }
67     Mocker mocker;
68     auto mock = mocker.mock!Dependency;
69     mock.expect.isTrue.passThrough;
70 
71     assert(mock.get.isTrue);
72 }
73 
74 unittest
75 {
76     static class Dependency
77     {
78     }
79     Mocker mocker;
80     auto mock = mocker.mock!Dependency;
81     mock.expect.toString.returns("in abstracto");
82 
83     assert(mock.get.toString == "in abstracto");
84 }